214results about How to "Avoid affecting the detection accuracy" patented technology

The invention discloses a detection circuit and a detection method of total dissolved solids (TDS). The detection circuit comprises a water quality probe, a TDS detection unit with three branches and a processing unit, wherein a first end of a first branch is connected with a first end of the water quality probe; a first end of the second branch is connected with a second end of the water quality probe; a first end of the third branch is connected with the first end and / or second end of the water quality probe; a first output end of the processing unit is connected with a second end of the first branch; a second output end of the processing unit is connected with a second end of the second branch; a first input end of the processing unit is connected with a second end of the third branch; the two output ends of the processing unit are used for alternately outputting pulse signals; the input end of the processing unit are used for acquiring the TDS signal detected by the TDS detection unit. According to the detection circuit, voltage is alternately applied to two ends of the water quality probe to drive the water quality probe to work, electrolytic reaction caused by the operation of continuously applying direct current voltage to the water quality probe is avoided, the detection precision of the TDS in the water is improved, the influence on the water quality during detection is avoided, and the service life of the water quality probe is prolonged.

The invention provides a new method for leakage detection of a Freon valve, and belongs to the technical field of valve supervision and inspection. Freon is input via a Freon control vale firstly, high-temperature high-voltage water vapor is input via a high-temperature high-voltage stream control valve then, a mixed gas of the high-temperature high-voltage water vapor and the Freon enters a checked valve, multipoint step-by-step air extraction is performed on the checked valve by using an air extracting device, the extracted mixed gas is cooled in an air cooling device firstly, gas-liquid separation is performed in a gas-liquid separation device subsequently, and, finally, a halogen detector performs detection at air outlet of the gas-liquid separation device. The usage amount of the Freon is reduced, and serious pollution caused by that total fluoride as a working medium performs detection is reduced; a leakage point is accurately located through detection for the tracer gas Freon, and the leakage grade is determined through the number of lit alarm indicating lamps; and the cooling and gas-liquid separation devices are increased, an influence of too high stream temperature is prevented, and inspection precision is improved.

The invention discloses a roller generatrix rough profile detection device and method of cylindrical roller bearings. The detection device comprises a surface rough profile measuring instrument and a bearing clamping positioning device; the surface rough profile measuring instrument comprises a base, an upright column, a driving electric box, an electric inductance sensor and a measuring pin; the bearing clamping positioning device includes an X-axis worktable, a Y-axis worktable, a bearing positioning fixture and a bearing baffle, wherein the X-axis worktable is slidingly connected onto the base, the Y-axis worktable is slidingly connected onto the X-axis worktable, an X axis is the axial direction of a measured bearing of which the outer ring has been removed in detection, a Y axis is vertical to the X axis, the Y axis and the X axis are in the same horizontal plane; the bearing positioning clamp is arranged on the Y-axis worktable; the bearing baffle is arranged on the Y-axis worktable; after the outer ring of the measured bearing is removed, the measured bearing is installed in the bearing positioning clamp; one side end surface of the measured bearing of which the outer ring has been removed contacts with the bearing baffle. With the roller generatrix rough profile detection device and method of cylindrical roller bearings of the invention adopted, detection accuracy can be improved.

The invention discloses an inspection device for the coaxiality of a cylinder cover valve base hole and a guide pipe bottom hole, which comprises a dial indicator, and is characterized by further comprising a core shaft which is of a hollow structure is can be inserted in the guide pipe bottom hole, a core rod inserted at one end of the core shaft and a rotatable inspection device base arranged atone end of the core rod in a sleeved manner, wherein one side of the inspection device base is provided with a measuring lever which can be inserted into the valve base hole can be connected with theside wall of the valve base hole in a contacted manner, the lower part of the measuring lever and the inspection device base are provided with a first spring therebetween, and a measuring head of thedial indicator penetrates through the inspection device base and is connected with the upper part of the measuring lever in a contact manner; and the core shaft is internally provided with a positioning mechanical capable of automatically positioning the axis of the guide pipe bottom hole below the core rod. The inspection device is simple in structure and convenient to operate, can measure the coaxiality of the cylinder cover valve base hole and the guide pipe bottom hole quickly and accurately, greatly improves the measurement efficiency and accuracy and reduces the labor intensity and theproduction cost.

The invention provides a multipoint gas monitoring device. The multipoint gas monitoring device comprises a selective sampling drum, multiple sampling connecting pipes, a rotary connecting pipe, a driving part, a first gas detection unit, a first power unit and a second power unit, wherein one ends of multiple sampling connecting pipes are arranged on the air inlet surface of the selective sampling drum and form a circle, one end of the rotary connecting pipe is contacted with the air inlet surface of the selective sampling drum, the other end of the rotary connecting pipe is communicated withthe first gas detection unit, the driving part is connected with the rotary connecting pipe in a driving way and used for driving the air inlet end of the rotary connecting pipe to do circular rotation around the circle formed by multiple sampling connecting pipes on the air inlet surface and be sequentially connected with the rotary connecting pipe and each sampling connecting pipe, the first power unit is connected with the selective sampling drum, and the second power unit is connected in a gas circuit communicated with the rotary connecting pipe. The multipoint gas monitoring device provided by the invention has the advantages that uninterrupted sampling detection is carried out on content of water and oxygen, harmful gases and cleanliness of ingredients of gases at different positions, measurement accuracy is high, size is small, and cost is low.

The invention discloses a method for positioning molten iron torpedo tank trucks, and belongs to the technical field of methods for positioning tank trucks. The method has the advantages that the temperatures of torpedo tank targets are sensed in a non-contact manner, accordingly, the molten iron torpedo tank trucks can be positioned, torpedo tank truck positioning requirements for filling the torpedo tank trucks with molten iron by tapping holes of metallurgical blast furnaces, filling molten iron trucks with molten iron by the torpedo tank trucks of steelmaking pouring stations, measuring the weight of the molten iron in the torpedo tank trucks or measuring the liquid level of molten iron in torpedo tanks and the like can be met, and the problems of filled molten iron overflow or influence on the detection accuracy and the like due to positioning errors can be solved; the method can be implemented by few equipment, logic structures are simple, maintenance is simple and convenient, the maintenance cost is extremely low, the method can be popularized and applied to automatically detecting the liquid level of liquid surfaces of the molten iron in the torpedo tank trucks and automatically measuring the weight of the molten iron, and the like.

The invention discloses a calibrating technology and device for a pure water total organic carbon analyzer. The calibrating device comprises a stirrer, a mixing bottle, an air inlet pipe, an exhaust pipe, a distribution pipeline, the pure water total organic carbon analyzer for calibration and a collecting bottle. According to the calibrating technology and device, during use, protective gas is continuously input into the mixing bottle, after air is discharged completely, blank water and a TOC solution with the known concentration are accurately input into the scale mixing bottle through an infusion pump, uniform stirring is carried out through the stirrer, the data measured by the high-accuracy pure water total organic carbon analyzer is compared with the result of dilution of TOC of thesolution in the mixing bottle, the result of the newly-prepared TOC standard solution obtained in the diluting and mixing processes is confirmed to be accurate and reliable, and the calibrating technology and device can be used for calibrating the pure water total organic carbon analyzer to be detected; due to the fact that the protective gas is continuously introduced into the mixing bottle, theair is driven out of the mixing bottle, and therefore the phenomenon that the detection precision is influenced due to the fact that carbon dioxide in the mixing bottle is blended into the mixing bottle can be avoided; the mixing bottle is made of a quartz material, so that the phenomenon that the detection accuracy is influenced due to the fact that metal ions is dissolved out due to the adoptionof a glass material can be avoided; the distribution pipeline is made of polytetrafluoroethylene, so that the problem that the detection accuracy is influenced due to the fact that free carbon elements in a pipeline enter a solution due to the adoption of a plastic pipeline can be solved; and accurate calibration of the pure water total organic carbon analyzer is realized.

The invention provides a wireless charging device and a wireless charging metal detection device and detection method. The metal detection device comprises a signal generation circuit, a parallel resonant circuit, a filtering circuit, a peak maintenance circuit, a control circuit and a notification unit, wherein the parallel resonant circuit comprises a metal detection coil, the interference condition of a metal foreign matter can be reflected according to impedance change of the metal detection coil, the signal generation circuit, the parallel resonant circuit, the filtering circuit and the peak maintenance circuit are sequentially connected in series, and the control circuit is connected with the signal generation circuit, the peak maintenance circuit and the notification unit. The metaldetection method comprises the main steps of actively acquiring optimal excitation frequency of the metal detection coil by a mode of frequency sweeping and tuning, sequentially driving a plurality of single detection coils which are not adjacent to each other by a mode of cycle scanning, reading output voltage change of the peak maintenance circuit by the control circuit, and making a response.The metal detection device has the advantages of simple structure, low cost and high identification efficiency.

The invention discloses a high-altitude cable intelligent inspection and repair device based on remote sensing control, which comprises a shell, a controller, a storage battery and a photovoltaic panel, and is characterized in that the controller for receiving remote signals and the storage battery for providing electric energy are arranged on the inner side of the shell; the two groups of adjusting mechanisms are symmetrically arranged on two sides of the shell and are used for realizing follow-up obstacle crossing and line change detection; the repairing mechanism is fixedly installed above the adjusting mechanism located on the right side of the shell and used for achieving active repairing of the damaged position of the outer wall of the cable, and the repairing mechanism comprises two sets of second suspension bases. The high-altitude cable intelligent inspection and repair device based on remote sensing control can freely move and detect on the outer side of a cable through remote sensing control, can automatically climb over obstacles installed on the outer side of the cable and carry out cable change detection, and can automatically clean the outer side of the cable before detection and repair, so that the detection precision is improved.

The invention relates to a micro dynamic pressure sensor detection system based on an MEMS technology. The micro dynamic pressure sensor detection system comprises a box body, air supply units, a fixing unit, a detection unit, a hinge, a box door, an observation window, a knob and a central control unit. The air supply units are arranged at the top of the box body; the air inlet ends of the air supply units are respectively connected with air storage tanks in which corresponding air is stored; when the parameters of the sensor to be detected are detected, corresponding types of gas can be selected according to actual conditions and introduced into the box body so as to simulate the actual working environment of the sensor; the deviation of different gas environments during detection can beeffectively avoided; and meanwhile, the system can select different detection standards according to the specific working environment of the sensor to be detected, i.e., different detection pressureranges are used for carrying out targeted detection on the sensor to be detected, so that the detection efficiency of the system is improved.

The invention discloses an inspection device for detecting water quality. The inspection device comprises a sampling body, a liquid inlet end, a sampling pipe, a filtering head, a stop valve, a lifting pump, a liquid outlet connector, a sliding groove, a rotary table, a rotary handle, a connecting rod, a storage box, a sealing hole, a label opening, a detection end, a lead wire, a detection device, a single chip microcomputer, an analog signal amplifying unit, an analog-to-digital conversion unit, a power supply unit, a storage unit, a key module, a display module, a wireless transmitting module and a receiving terminal. According to the inspection device disclosed by the invention, the flexibility of water quality sampling and detection operation is effectively improved, and the adjustingcapability of the device is enhanced; meanwhile, sampled samples are placed orderly and are classified clearly, so that later-period detection work is convenient to carry out; a condition that the detection accuracy is influenced, caused by the fact that various samples are placed disorderly, is avoided, and a placement space is sufficiently utilized; the working efficiency of water quality detection is greatly improved, and the time and the manpower are effectively saved; the whole device is flexible to use, and various utilization requirements under actual conditions are met.

The invention discloses a comprehensive pipe gallery information system based on the technology of Internet of Things. The comprehensive pipe gallery information system comprises a patrol system, a monitoring system and a master control terminal, the monitoring system and the patrol system are in communication connection with the master control terminal, the monitoring system conducts fixed-pointmonitoring and control on the interior of a pipe gallery based on the technology of Internet of Things, the patrol system conducts patrolling on the interior of the pipe gallery through a patrol robot, the patrol robot comprises a collecting device, a follow-up device, an adjusting device and a controller, the adjusting device is connected with the collecting device, and the controller is in communication connection with the collecting device, the follow-up device and the adjusting device. According to the system, the monitoring system and the patrol system are arranged inside the pipe galleryat the same time, the defects that during fixed-point monitoring, monitoring dead zones and dead angles exist or the constructing price is high are overcome, and the system is simple in allocation and low in maintaining cost.

The invention discloses a hoisting robot system of rotor blades. In the detection process of the rotor blades, a multi-degree-of-freedom hoisting robot is used for hoisting the produced rotor blades to a positioning mechanism, the positioning mechanism can be used for positioning the rotor blades so as to facilitate the detection operation. The structure characteristics of the rotor blades are considered to be irregular curved surface structures, therefore, the material shifting mechanical arm is not a conventional mechanical arm structure, the position change and adjustment of a plurality ofmaterial shifting suckers are realized through a unique structure of the material shifting mechanical arm, so that the material shifting suckers can be in full contact with the rotor blades, then tight adsorption and fixation are realized, and the hoisting safety is ensured; and meanwhile, due to the negative pressure adsorption effect, the surfaces of the rotor blades can be prevented from beingdamaged while safe hoisting is realized, and the influence on the detection precision is avoided.

The invention discloses an automatic laser detecting device for machining, which comprises a supporting bracket; the top part of the supporting bracket is fixedly equipped with a protecting cover, anda first chute is arranged on the upper surface of the supporting bracket; evenly distributed fixing plates are arranged on the upside of the supporting bracket, and the first chute is glidingly connected with the fixing plates through a first slide block at the inner part; the top part of the protecting cover is fixedly equipped with a cross beam, and both sides of the lower surface of the crossbeam are provided with second chutes; the left side of the lower surface of the cross beam is provided with a first electric push rod. Through the protecting cover, the automatic laser detecting device can avoid the influence on detection precision by outside light irradiation and also avoid the influence on outside environment by the laser refraction to outside; through arranging multiple laser emitters with different orientations at the inner part of the protecting cover, multiple surface of a work piece can be detected at the same time; thus the automatic laser detecting device can save a lot of time and is good for improving the working efficiency.

The invention discloses a robot for selecting the outer diameter sizes of bearings. The robot comprises a bottom plate, a motor I, supporting columns, a shelf, a rotary frame, a motor II, an installing plate, a large arm, a motor III, a small arm, a motor IV, a camera installing frame, a CCD (Charge Coupled Device) camera, an electromagnet, an actuator, a cylinder, a sliding rail, blocking pieces and a distance sensor, wherein the supporting columns are arranged on the bottom plate and are connected with the shelf; the motor I is arranged under the shelf and is connected with the rotary frame which is provided with the installing plate; the installing plate is connected with the motor II; the large arm is connected with the installing plate; the small arm is connected with the large arm, is provided with the motor III and is connected with the actuator; the actuator is provided with the motor IV, the camera installing frame and the electromagnet; the camera installing frame is provided with the CCD camera. The robot disclosed by the invention has the advantages that the positions of the bearings can be automatically recognized, and automatic grabbing, measurement and selection of the bearings are realized by controlling the rotation of the motors, so that the labor and the materials are greatly saved.

The invention provides a fault detection device for air conditioner maintenance. The fault detection device comprises a transmitting end and a receiving end. The transmitting end comprises a gas tank,a connecting pipe I and a transmitting cover, the two ends of the connecting pipe I are respectively fixedly connected with the gas tank and the transmitting cover, the top of the connecting pipe I is fixedly connected with an air inlet pipe, a fan I is installed in the air inlet pipe, one side of the gas tank is provided with a through hole, and one end of the gas tank penetrates through the through hole and is fixedly installed in the through hole. The fault detection device for air conditioner maintenance is reasonable in design, the transmitting end and the receiving end can respectivelyrelease and receive special gas, so that the gas enters through an air inlet of an air conditioner and is discharged through an air outlet, and whether a condenser and an evaporator of the air conditioner are dirty and blocked and the degree of being dirty and blocked can be determined according to the concentration and the time span during entering and discharging, and whether to be cleaned is determined, the practicality is strong, and the detection efficiency is high.

The invention relates to an environment-friendly chemical waste gas detection device. The device comprises a temporary storage bottom box and a detection camera obscura; the temporary storage bottom box and the detection camera obscura are provided with a gas inlet device, a repeated conveying device, a monitoring device, a displacement device, a rotating device, a filtering device, a gas pushingdevice and an opening and closing device; one side of the temporary storage bottom box is fixedly connected with the detection camera obscura; the detection camera obscura is of a structure with openings in the two sides; the other side of the detection camera obscura is fixedly connected with supporting frames; a temporary storage top box is fixedly connected between the supporting frames; and the temporary storage top box is of a structure with openings in the two sides. Through cooperation of the gas inlet device, the repeated conveying device, the monitoring device, the displacement device, the rotating device, the filtering device, the gas pushing device and the opening and closing device, waste gas of all volumes can be detected in the detection and discharging process, the detectionprecision is improved, and the surrounding environment cannot be damaged.

The invention discloses a full-automatic chemiluminescence immunoassay analyzer. A rack is provided with a data processing and control module which is connected with a sample storage module, a reagent cleaning and separating module, a reagent reaction module, a sample adding and transporting module, a lighting module and a suction head storage module at the same time; the suction head storage module is arranged between the sample storage module and the reagent reaction module, the reagent cleaning and separating module is arranged between the sample adding and transporting module and the lighting module, and the sample adding and transporting module is arranged between the reagent reaction module and the reagent cleaning and separating module. Whole blood or serum samples can be directly detected, after consumables and related reagents are prepared, the samples only need to be placed on the sample frame, code scanning, sample adding and other operations of the samples can be fully automatically completed, detection results are finally output, the accuracy and stability of the detection results are high, and the detection efficiency is high. The cost is obviously lower than that of a full-automatic chemiluminescence immunoassay analyzer in the market, and the invention is convenient for later mass popularization.

The invention relates to a detection device and a detection method for the interior of a pipeline, belonging to the field of petroleum. The detection device for the interior of the pipeline comprisesa walking mechanism capable of walking in a to-be-detected pipeline and a detection mechanism used for pipeline detection; and the detection device also comprises a PID speed control module used for controlling the walking speed of the walking mechanism and a speed detection module used for detecting the walking speed of the walking mechanism, wherein the speed detection module is connected with the signal of the PID speed control module which is connected with the walking mechanism in a controlled manner. When in use, the detection device is mounted into the to-be-detected pipeline, and the speed detection module detects the walking speed of the detection device in real time in the walking process of the detection device; the speed detection module transmits a measured speed to the PID speed control module, while the PID speed control module adjusts the walking speed of the walking mechanism in real time, so walking of the detection device at a constant speed is realized. Compared with the prior art, the detection device and the detection method provided by the invention have the following advantages: the accuracy of detection is guaranteed; meanwhile, the detection efficiency ofa detector is improved.

The invention relates to the technical field of intelligent manufacturing, and discloses a bending machine deflection compensation amount control device based on pressure adjusting and an adjusting method thereof. The control device comprises a sliding block and a worktable arranged under the sliding block. Multiple sets of adjustment rods are evenly distributed in the sliding block in the transversely direction, two adjustment rods in the multiple sets of adjustment rods are located on the left side edge and the right side edge of the sliding block and are symmetrically distributed, the adjustment rods are in threaded connection with the sliding block, and pressure sensors are arranged above the worktable and located under center shafts of the adjustment rods. Multiple adjustment rods ofthe odd term are arranged on the sliding block, the pressure sensors are arranged below the corresponding adjustment rods, the pressure values detected by the pressure sensors are locally adjusted, the same pressure value of the pressure sensors is taken as the target, the telescopic adjusting amount of hydraulic rods is adjusted, through the telescopic adjusting amount of the hydraulic rods, thefeeding amount of the deflection compensation device is correspondingly adjusted, and the deflection compensation amount precise control can be carried out.

The invention relates to the technical field of water supply and drainage, in particular to an urban groundwater drainage pipe network detection method. The method comprises the following steps of selecting an detection area, determining the length of an underground drainage pipe network to be detected on the ground, opening a corresponding well cover of the underground drainage pipe network to bedetected, cleaning an underground drainage pipeline, cleaning the inner wall of the underground drainage pipeline till reaching a detection requirement, inspecting the underground drainage pipeline,placing an urban underground drainage pipe network detection device in the pipeline, inspecting the inner wall of the underground drainage pipeline by controlling the urban underground drainage pipe network detection device, recording a damaged location when the damage like problem of the underground drainage pipe network is detected by the underground drainage pipe network detection device, and preparing for post repair work. By means of the detection method, the problems that detection distance in the prior detection art is short, the positioning is difficult, and the damage detection is notcomprehensive are solved.

The invention belongs to the technical field of lithium batteries, and particularly relates to a lithium battery charging and discharging detection system and a detection technology.The lithium battery charging and discharging detection system comprises a workbench, a conveying belt is arranged at the top of the workbench, a lithium battery is placed at the top of the conveying belt, and the top of the lithium battery is fixedly connected with a positive and negative electrode connector; supporting plates are fixedly connected to the two sides of the workbench, and the sides, close to each other, of the two supporting plates are fixedly connected with the same placement plate. The lithium battery charging and discharging detection device is simple in structure and convenient to operate, manual operation is not needed in the charging and discharging detection process of a lithium battery, the detection process is full-automatic, the detection efficiency is greatly improved, and the detection cost is reduced. And the lithium batteries are positioned and fixed before detection, so that the situation that the positive and negative electrode connectors are misplaced with the charging and discharging detection head and the charging connector and cannot be accurately detected is prevented, and in addition, the detected lithium batteries can be classified in time.

The invention relates to the technical field of detection devices, in particular to an electromechanical equipment vibration detection device which comprises a base, a supporting plate, a side plate and a movable sensor, a fixing base is welded to the lower end of the base, a plurality of evenly-distributed bolt holes are formed in the fixing base, fixing bolts are connected into the bolt holes, and the fixing base is fixedly connected to a mounting plane through the fixing bolts. Springs are welded to the four corners of the upper end of the fixing base, a supporting plate is welded to the upper ends of the springs, side plates are welded to the four edges of the upper end of the supporting plate, a containing groove is formed in the supporting plate and the side plates, and the upper endof the side plate on one side is fixedly connected with a vibration sensor through bolts. The electromechanical equipment vibration detection device has the beneficial effects that the motor can be clamped and fastened, so that the motor is tightly connected with detection equipment, the vibration transmission effect is ensured, the detection effect is better, the detection precision is preventedfrom being affected by vibration caused by additional collision due to inaccurate connection, motors of different signal specifications can be clamped and fastened for detection, the use convenienceis improved, and the use effect is improved.

The invention discloses a gas sampling device for environmental detection. The gas sampling device comprises a base, a lifting assembly, a bearing table and a sampling cylinder, wherein the bearing table is arranged above the base; the lifting assembly is arranged between the base and the bearing table; the sampling cylinder is arranged above the bearing platform through using a plurality of telescopic rods; two strip-shaped plates are fixedly mounted on the bearing table; two second threaded rods are rotationally mounted between the two strip-shaped plates in a front-back symmetry manner; a mounting plate is arranged between the two second threaded rods in a threaded penetrating manner; and a push rod is fixedly mounted on the mounting plate, and a rotating pipe for cleaning the samplingcylinder is rotationally mounted on the mounting plate through a bearing. The gas sampling device is reasonable in structural layout, large in collection amount, can guarantee safety of gas samples inthe gas sample transportation process, has a sampling barrel cleaning function, can clean the sampling barrel after one-time collection is completed, avoids interference of substances remaining in the sampling barrel on detection of gas collected next time to affect detection precision, and is simple in operation, convenient to use and quite practical.

The invention discloses a patrol robot and an underground pipe gallery information management system with same. The patrol robot comprises an acquisition apparatus, a tracing apparatus, an adjusting apparatus and a controller, wherein the acquisition apparatus is used for acquiring data information of an instrument in a pipe gallery; the tracing apparatus is used for acquiring location informationof the instrument in the pipe gallery; the adjusting apparatus is connected with the acquisition apparatus and used for adjusting the location of the acquisition apparatus; the controller is separately connected with the acquisition apparatus, the tracing apparatus and the adjusting apparatus in a communication manner; the location information of the instrument acquired by the tracing apparatus is fed back to the controller, and the controller controls the adjusting apparatus to adjust the acquisition apparatus to an optimum location so as to acquire the data on the instrument. The patrol robot is simple in structure, high in information acquisition accuracy, low in information acquisition amount, capable of effectively avoiding the complicated information screening and conversion work inthe prior art and favorable for optimizing the layout inside the pipe gallery.

The invention discloses a semiconductor packaging test device which comprises a platform. The top surface of the platform is provided with two conveyor belts, a packaged chip flatness detection mechanism, a detection table and a transfer mechanism; the transfer mechanism comprises two symmetrically-arranged stand columns, the tops of the stand columns are fixedly connected with a horizontally-arranged sliding rail, the outer wall of the sliding rail is slidably connected with a movable block, the top surface is fixedly connected with two symmetrically-arranged fixing plates, the top surface isprovided with a strip-shaped groove, and a lead screw is rotatably connected to the side walls of the fixing plates in a penetrating mode; and the side wall is fixedly connected with a motor coupledwith the lead screw, and the side wall of the movable block is provided with a material carrying mechanism. The invention relates to the technical field of semiconductor package testing. According tothe invention, the problems of low detection precision, low efficiency, easy ash falling on the detection table and influence on the detection precision due to the fact that a worker needs to place apackaged chip on the detection table and then uses a CDD camera to carry out overall shooting detection in the semiconductor packaging test process for detection of packaged chip flatness are solved.

The invention relates to handheld laser ranging equipment with an angle adjusting function. The handheld laser ranging equipment comprises a main body, a support shaft, a base, an adjusting mechanismand a cleaning mechanism, wherein the adjusting mechanism comprises an adjusting assembly and a transmission assembly; the adjusting assembly comprises a motor, a lead screw, a slide block, a hinge bar and two guide units; and the cleaning mechanism comprises a connection box, an air inlet pipe, an air outlet pipe, an air cylinder, a piston, a connecting rod, a power assembly and two nozzles. According to the handheld laser ranging equipment with the angle adjusting function, the angle of the main body can be adjusted through the adjusting mechanism to realize the function of adjusting the laser emitting angle. Dust adhering to a laser emitting device and a laser receiving device can be removed through the cleaning mechanism, so that the influence of dust with which the laser emitting device and the laser receiving device is covered on the detection accuracy of the equipment is avoided.

The invention discloses a water environment current situation monitoring device based on the Internet of things, which comprises a collecting device and a sampling mechanism. The sampling mechanism comprises a case and a protection pipe fixedly connected with the bottom of the case. The invention relates to the technical field of water environment monitoring. According to the water environment current situation monitoring device based on the Internet of things, a waterproof lamp holder is arranged at the upper part in a protection pipe, a plurality of groups of light intensity sensors are arranged at the lower part, and the multiple groups of light intensity sensors are distributed in a staggered manner and can detect light emitted by lamp beads respectively and further detect the light intensity at different depths under water and judge the transparency of water; and meanwhile, a plurality of sampling pipes are arranged, so that sampling detection can be carried out on water at different depths; a sampling assembly and a light intensity detection assembly are both placed in the protection pipe, the protection pipe is sleeved with an outer pipe, closing and opening of the protection pipe are realized, after detection is completed, a water sample in the protection pipe can be pumped out, cleaning can be conducted, then the interior of the protection pipe is kept clean, it is avoided that detection precision is affected due to attachment of impurities and algae, and use is convenient.

The invention discloses a tank truck sampling device comprising a truck body, a connecting ladder and a transfer box The connecting ladder consists of a left supporting column and a right supporting column; a pedal is welded between the left supporting column and the right supporting column; a connecting rod is welded between the pedal and the truck body; and a liquid outlet pipe is arranged in the connecting rod. A first return pipe is arranged in the left supporting column; and one end of the first return pipe penetrates the bottom of the left supporting column and is connected with the transfer box. According to the invention, liquid in the truck body is led to the transfer box through the liquid outlet pipe and a backflow pipe, the liquid in the transfer box is pumped into the samplingbox through the micro pump, and then a liquid sample is taken out through a sampling interface. During the process, the operator can control on / off of an electric control valve and starting-shutdownof a micro pump through a touch screen, so that the manpower is saved. After sampling ending, the operator can pump liquid in the sampling box back into the truck body through the water pump and the whole pipeline system is totally closed, so that a phenomenon that the detection precision is affected by the contact of to-be-detected liquid with air is avoided effectively.