87results about How to "Easy to observe and record" patented technology

The invention relates to a visual three-dimensional stereoscopic imaging method and an operation microscope utilizing the method. The three-dimensional stereoscopic imaging method comprises the following steps: light reflected by an object passes through an object lens for refraction, the refracted light is divided into two paths which pass through a left light splitting path imaging mirror and a right light splitting path imaging mirror respectively for refraction, and the two paths of refracted light pass through a left image rotation prism and a right image rotation prism respectively to focus on a same reflective mirror and then are transmits to a video display unit through a video. The operation microscope comprises a mobile support which is installed with a rotation head mast, and the head mast is provided with a three-dimensional microscope. After employing the three-dimensional stereoscopic imaging method, there is no need to carry out shooting through two cameras and then carry out later computer synthesis, and cost is saved. Through the operation microscope prepared by employing the method, observation and record can be carried out conveniently, an effect of distortion is not generated, and accurate diagnosis is facilitated.

The invention relates to a transparent soil model pile experimental testing device and an application method thereof. The whole system comprises an experiment table and a model experiment device, wherein the experiment table can be leveled through setting adjustable table legs; a desktop is provided with a bracket and a bracket fixing plate so as to mount an engineering diffuser, a camera and a laser device, and is provided with a slide model fixing plate and a vertical and transverse slide limiting plate so as to position and fix a model testing groove; a counter-force frame is arranged above the model testing groove, is adjusted by an adjustable type screw rod and a fixed screw cap and is fixedly arranged on the tabletop; the counter-force frame is provided with a small-size hydraulic jack and a pressure meter; artificially synthesized transparent soil is arranged in the model testing groove and the model testing groove is provided with a model pile and a model pile loading head so as to carry out a post-period model test. The whole system is reasonably arranged, and a loading test and observation on displacement and deformation conditions can be conveniently carried out on the model pile in the artificially synthesized transparent soil.

The invention discloses a portable urine flow rate and flow amount detection device. The portable urine flow rate and flow amount detection device comprises a urine collection device and a urine collection bag, wherein the tail end of the urine collection device is connected with a flow rate sensor used for collecting the flow rate of urine, a gravity sensor is arranged at one end of a urine outlet pipe of the urine collection bag and is used for collecting the real-time data of the weight of the urine collected inside a urine storage bag, and an induction device is arranged at the end, close to a urine inlet pipe, of the urine collection bag and is used for inducting the position of the urine in the urine collection bag in order to control opening and closing of a valve. The portable urine flow rate and flow amount detection device has the advantages of being convenient and rapid to use, convenient to operate, portable, capable of detecting the weight and the flow rate of the urine anytime and anywhere for home patients, being accurate in detection result, being capable of displaying the detection result on an LED displayer of the urine collection bag, bringing convenience to observation and recording for the patients, being capable of automatically releasing excessive urine according to the volume of the urine, enabling the urine to be discharged into a urine collector or directly discharged into a closestool, lightening the burden of the patient, and being hygienic and convenient to use.

The invention relates to a flatness detecting device for an aluminum-plastic plate and a flatness detecting process for the aluminum-plastic plate, comprising a bottom plate, an adjusting device, a detecting device, and a marking device. The middle portion of the upper end of the bottom plate is provided with the adjusting device, the detecting device is mounted on the upper end of the adjusting device, and the marking device is mounted at the lower end of the detecting device. The invention can solve the problem that the existing aluminum-plastic plate detection is usually manual detection, the manual detection efficiency is low, the accuracy is low, small protrusions or depressions are not easy to find when manually detected which is prone to occur omissions, the manual detection cannotdetect curved aluminum-plastic plate, which is small in adaptation range, and the manual detection cannot mark the aluminum-plastic plate in a higher position, which is not conducive to subsequent repair and replacement. The invention realizes the functions of automatic detection and marking of the aluminum-plastic plate, and has the advantages of simple operation, good stability and fast detection efficiency.

The invention provides breeding apparatus for hermetia illucens in a laboratory. The apparatus comprises a frame, a larva breeding bed, a screening device, a humidity detecting device, a stirring device and a first screw conveying device, and the larva breeding bed, the screening device, the humidity detecting device, the stirring device and the first screw conveying device are fixed on the frame;the larva breeding bed includes a conveyor belt and a driving device, larvae are put on the conveyor belt, the conveyor belt is driven to rotate by the driving device, the screening device and the stirring device are sequentially arranged above the conveyor belt from the top to the bottom, the screening device is used for screening a feeding material, the screened feed falls into the stirring device, the interior of the stirring device is provided with the humidity detecting device used for detecting the humidity of the feed, and the stirred feed is conveyed onto the conveyor belt through thefirst screw conveying device; and the frame is provided with leg columns, and the frame is staggered and stacked together through the leg columns. The apparatus provided by the invention is convenient for breeding in the experiment process as well as observing and recording in the breeding process.

The invention relates to a real-time infrared target detection system and method based on FPGA, belonging to the infrared real-time monitoring field, the system comprising an infrared camera device, atwo-dimensional servo head, a display and an upper computer. The infrared camera device is used for collecting infrared images and processing the infrared images into image data which can be transmitted. A FPGA module is communicatively connected with the infrared camera device. The FPGA module receives image data and extracts infrared target position and shape information in a parallel processing mode; the upper computer receives and stores the information of infrared target position and shape in real time. The invention solves the problems in the prior art that the performance of DSP and FPGA is greatly wasted when DSP and FPGA are combined to deal with real-time infrared target detection, and the problem of low efficiency of infrared target detection is caused by DSP and FPGA transmission and DSP sequential processing. The invention reduces the use of DSP chip, realizes the function of original DSP in FPGA chip, and improves the efficiency of operation by using the characteristic of parallel processing in FPGA.

The invention discloses direct buried type backfill land settlement observation equipment and a settlement observation method. The equipment comprises a base column, a sleeve, a pull rod type straightline displacement sensor, a flange, a settlement disc, a cable and data acquisition and transmission equipment, wherein the base column is buried into a non-compressed soil layer; the sleeve is arranged between the base column and the flange in a sleeving manner; the pull rod type straight line displacement sensor is arranged inside the sleeve; the head part of the pull rod type straight line displacement sensor is connected with the base column; the tail part of the pull rod type straight line displacement sensor is connected with the flange; the settlement disc is connected with the top ofthe flange; hollow holes are preserved in the middle of the settlement disc and the middle of the flange; one end of the cable is connected with the pull rod type straight line displacement sensor; the other end of the cable penetrates through the preserved hollow holes in the middles of the flange and the settlement disc and is connected with the data acquisition and transmission equipment. The equipment is good in stability, free of construction interference, lower than the ground and not liable to be damaged; moreover, with the combination of the automatic data acquisition and transmissionequipment, settlement data acquisition at any moment for any frequency can be achieved.

The invention discloses a stratum displacement monitoring method based on belt driving and belongs to the field of stratum displacement monitoring technologies. The method aims to solve the technicalproblems of how to avoid stratum displacement measurement data errors caused by equipment and improve stratum displacement measurement precision. Through the method, it is convenient to manually observe and record stratum displacement values, and meanwhile linear displacement can be converted into rotating angular variables and provide conditions for performing processing and remote monitoring forelectric signal conversion. According to the adopted technical scheme, the method comprises the steps that (1) installation positions of base-point anchors are determined; (2) a deep base-point anchor is installed; (3) a shallow base-point anchor is installed; (4) a sleeve is positioned; (5) the belt position is standardized; and (6) stratum separation displacement is read, wherein when a stratumseparates and generates displacement, steel strands drive a belt to move through a connecting sliding block, and displacement length is directly read through scale values on the belt.

The invention relates to a braided river physical simulation test system comprising a water channel composed of a water channel narrow section and a water channel wide section. The left side of the water channel is provided with a flat pool, a pipe, a gate valve and a flowmeter which are arranged from right to left in sequence; the right side of the water channel is provided with a sand basin, a water delivery pipe and an outlet sump from left to right in sequence; the bottom of the water channel is provided with a fixed support, and the connection position between the water channel narrow section and the water channel wide section is provided with a dump angle adjusting plate; a sand adding device is arranged above the water channel narrow section, and the both sides of the top of the water channel are provided with longitudinal tracks; transverse tracks are provided with testers, and the back side of the sand basin is provided with a water outlet elevation adjusting device; and a camera is installed above the test system. The physical simulation test system provided by the invention is simple in structure and convenient in operation; through the test system, the forming process of a braided river caused by different forms and different factors is simulated successfully; and the reliability and accuracy are provided for exploration, analysis and research on the forming mechanism of the braided river and the retention and start rules of biogenic substances with sediment in the braided river in the development process of mountain rivers.

The invention relates to an embedded software testing method on the basis of dimension conversion. The embedded software testing method includes configuration and transmission data and receiving and analysis data; the data configuration and transmission includes the configuration and transmission data include user-defined source variables, selected variable types, definition rule part of dimension conversion rules between setting source variables and transmission variables and execution rule part of dimension conversion rules between corresponding position and source variables and the transmission variables in the transmission variables after conversion of the setting source variables; the receiving and analysis data include user-defined receiving variables, configuration receiving variable types, the corresponding positions of selected target variables in the receiving variables and immediate dimension conversion of all target variables corresponding to the receiving variables after the data are received. Manual operation of data revaluation in the process of testing is reduced, and instantaneity of data transceiving is sufficiently guaranteed. Meanwhile, interference data can be filtered, only effective data are processed, and thereby efficiency is improved.

The invention provides a method for breeding experimental macaca mulatta. The mode of female money single-cage raising and regular mating is adopted in the mating period, the mode that infant monkeys and a female monkey are raised in a concentrated mode in the lactation period and an adult male monkey is isolated is adopted, the monkey group fighting problem is effectively solved, the infant monkeys are raised in a single-breeding monkey cage in the ablactation period, the breeding quality is further improved, and the health condition of the macaca mulatta can be discovered and managed in time. The breeding rate and the pregnancy rate of the macaca mulatta are further improved, the phenomenon that the female monkey of the right age is infertile in the breeding period is greatly reduced, the oestrus, mating and farrowing activities of personal macaca mulatta can be observed conveniently, and the health condition of the macaca mulatta can be discovered and managed in time. According to the method, overall comprehensive breeding management is combined with rich and reasonable breeding equipment, and thus the yield and the quality of the experimental macaca mulatta are greatly improved.

The invention aims to provide a device and a method for researching the dynamic mechanical property of a pre-stressed anchor rod, which are simple and convenient in operation and high in practicability. The device for researching the mechanical property of an anchor rod under the action of an impact force comprises a casing pipe, the anchor rod, an anchoring agent, a fixed end and an impacted end,wherein the anchoring agent anchors the anchor rod in the casing pipe; one end of the anchor rod is positioned outside the casing pipe, and the end is fixedly connected with the ground through the fixed end; the impacted end penetrates through the fixed end and is in contact with the casing pipe. The device has the following beneficial effects: 1, the limitation that the conventional research onthe mechanical property of the anchor rod only takes static load into consideration is overcome; 2, the mechanical characteristic of the pre-stressed anchor rod under impact can be simulated and researched truly; 3, the instantaneous impact condition can be observed and recorded conveniently, and the device is simple and convenient to operate, economic and practical; 4, the test is more intuitiveand real; 5, firstly, the existence of the impacted end performs a buffer and protection effect on the casing pipe; secondly, the impacted end can be detached, so that mounting of the fixed end is facilitated; finally, the impacted end can be detached and changed, so the test cost is reduced.

The invention is intended to provide an apparatus simple to operate and high in practicality and capable of studying dynamic mechanical properties of a prestressed anchor bolt, as well as a method. The apparatus comprises a casing, an anchor bolt, an anchor agent, and a fixing end; the anchor agent helps immobilize the anchor bolt in the casing; one end of the anchor bolt is positioned in the casing; the casing is provided with a longitudinal slot; the fixing end is fixedly connected with the anchor bolt through the longitudinal slot; the fixing end is fixedly connected to a ground; an impacted block is nested in an opening of the casing. The apparatus and the method have the advantages that the limit is overcome that the existing studies on mechanical properties of anchor bolts only consider static load; mechanical properties of a prestressed anchor bolt under impact can be truly simulated and studied; it is convenient to observe and record instantaneous impact condition, and the apparatus is simple to operate, economical and practical; tests are more visual and real; as the impacted block is releasable and replaceable, it is convenient to mount the fixing end, and test cost is reduced.

The invention discloses a highway rainfall early warning device with a rainwater filtering structure. The highway rainfall early warning device comprises an outer box, a supporting base and a mounting plate, wherein the supporting base is mounted on the inner wall of the outer box through bolts, a water collecting hopper is mounted on the inner side of the supporting base, a flow detector is mounted at the bottom part of the water collecting hopper through bolts, a metering box is installed at the bottom part of the flow detector through a bolt, the metering box is fixed into the outer box through a bolt, a connecting piece is installed on the inner side of the bottom part of the metering box, a limiting belt is connected to the bottom part of the connecting piece, a floating ball is installed at one end of the limiting belt, a storage battery is mounted on the inner side of the bottom part of the outer box through bolts and located on one side of the metering box, and a mounting plate is mounted on the inner wall of the outer box through bolts. A filter screen in the highway rainfall early warning device is composed of the gauze element and used for filtering falling rainwater, the filter screen filters out impurities, and the impurities are prevented from affecting the detection accuracy of the detection equipment.

The invention provides a three-degree-of-freedom ship navigation posture simulation device. The device comprises a platform face, two platform racks, two stand columns, a shaft sleeve, a rotary table, a supporting sleeve, a motor support, a linear stepping motor, a harmonic reducer, a stepping motor fixing base, a motor shaft sleeve, a rigid coupling, a deep groove ball bearing, a connecting base, a connecting head, a gasket, a lining plate, a limiting post, a protective cover, a chassis and the like. By means of the three-degree-of-freedom ship navigation posture simulation device, wide-range simulation rotating motion of the navigation posture of a ship is made; besides, the stepping motor is used as a servo mechanism, and thus the simulation precision of the device is greatly improved. The three-degree-of-freedom ship navigation posture simulation device further has the advantages that energy consumption is reduced, reliability is high, visualization of the navigation posture of the ship is improved, and further study and research are facilitated.

The invention discloses a transformer oil temperature monitoring apparatus based on a fiber grating principle. The apparatus comprises a cabinet, a switch power supply, an installation plate, a grating module, a demodulation instrument and four temperature probe, wherein the side surface of the outer side of the installation plate is connected with the side surface of the inner side of the cabinet, one end of the switch power supply is connected with the surface of the installation plate, the grating module is provided with a fixation hole, the grating module is fixedly connected with the installation plate through the fixation hole, the demodulation instrument comprises a demodulator and a main control board, each temperature probe is internally provided with two fiber grating sensors, the other sides of the temperature probes are connected with eight ST ports of the grating module, the eight ST ports of the grating module are disposed at the bottom, wires of a power supply and a serial port of the grating module are disposed on the top, the main control board and the switch power supply are connected, the master control board is provided with a display screen, and the display screen is corresponding to a cabinet door window. The transformer oil temperature monitoring apparatus is not affected by electromagnetic interference, and is high in precision, fast in reaction, high in corrosion resistance and long in life.

The invention relates to the technical field of biology, and in particular, relates to a kit for jointly detecting three rheumatism items and a preparation method of the kit. The bottom of a clampingshell is provided with a bottom plate; an NC membrane is arranged in the middle of the bottom plate; a combination pad is arranged at the end part of the left side of the NC membrane; a sample pad ismounted on the left side of the combination pad; a water absorption pad is arranged at the end part of the left side of the NC membrane; an RF detection line, an ASO detection line, a CRP detection line and a quality control line are sequentially arranged on the NC membrane; a sample adding hole and an observation opening are formed in the upper surface of the clamping shell; the preparation process of the kit comprises the steps: carrying out proportioning reaction on a coating solution, a confining liquid, a microsphere resuspension and a combination pad treatment liquid, then carrying out microsphere activation and related latex treatment, and then carrying out related region spraying and other multi-step treatment to finally complete the preparation process. According to the technicalscheme, the kit for joint detection of three rheumatism items and the preparation method thereof can simultaneously detect multiple types of rheumatism items, are high in detection efficiency, simpleto operate and easy for result observation and identification.

The invention discloses a swiveling pipe liquid flowmeter, comprising a water inlet pipe, a water outlet pipe, and a flowmeter joint arranged between the water inlet pipe and the water outlet pipe. Preferably, the flowmeter joint is internally provided with an electromagnetic flowmeter. The flowmeter joint is provided with a 360 DEG swiveling platform. The 360 DEG swiveling platform is formed by two layers of flanges which are meshed with each other. The upper layer flange freely rotates and moves on the lower layer flange. By using mutual meshing of the two layers of flanges, rotation on each direction is realized, operation personnel can push a flowmeter panel from all angles of the flowmeter to change orientation of the panel, providing convenience for observing records in production. The device is simple in structure, and has wide market prospect in the field of chemical engineering.

The prevent invention discloses an efficient and accurate positioning system and positioning method for parts uniformly distributed in circumferential direction. With the rise of industrial robots, alarge number of industries introduce robots to replace labor, thus improving work efficiency and product quality, and improving the intelligent level of manufacturing industry as a whole. For example,the tightening and assembling of circumferential screws of large-scale parts is time-consuming and laborious by manual assembly, and the quality is often not up to the requirements. The positioning system comprises an industrial robot, a robot tool coordinate system, circumferential parts, a vision system and a laser measuring system, wherein the industrial robot is provided with a tool, and thetool is a screw tightening device installed at the tail end of the robot according to screw specifications; the vision system comprises a light source and a camera, and the vision system is a system for data interaction with the industrial robot; and the laser measuring system is a system capable of measuring distance values in a required range and transmitting data to the robot. The positioning system and positioning method are used for efficient and accurate positioning of parts uniformly distributed in the circumferential direction.

The invention discloses a system and method of detecting a defect in a display screen by using an equal-thickness interference principle, and belongs to the technical field of optical interference detection. An air wedge is formed between a to-be-tested glass sheet and a flat glass sheet, parallel light penetrates through the air wedge and produces interference stripes, if the to-be-tested glass sheet has a defect or impurity, the interference stripes deform, stripe order and stripe width are calculated are calculated in x and y directions respectively so as to obtain specific position coordinates of the defect, then the defect is processed and cut in later stage. Through adoption of the system and method, higher detection accuracy is realized, simple, convenient operation is realized, defects or impurities are not missed, and complete, flawless glass display screen is obtained.

The invention discloses a secondary screening method of strain with high yield of lignocellulose degrading enzyme. The method comprises (1) preparing basal culture medium; (2) preparing surface culture medium on the basal culture medium; (3) inoculating to-be-screened strain on the surface culture medium in test tube, and culturing in culture box; and (4) selecting the strains with vigorous growth, formation or no formation of spores, and relatively long transparent layer under black or other background observation as high-yield strain. Compared with traditional screening methods, the inventive secondary screening method has convenient and easy operation, stronger industrial pertinence, and effectiveness for screening high-yield strain adaptable to industrial culture medium.

The invention discloses a water meter device facilitating data observation. A shell is included, and a hollow cavity is formed in the shell. An inner bottom of the hollow cavity is fixedly connected with a water meter body; conveying pipes are installed at two ends of the water meter body correspondingly; the two ends of the two conveying pipes penetrate through a side wall of the shell and are fixedly connected with the side wall of the shell; a mounting groove connecting with the hollow cavity is arranged in the upper end of the shell in a penetrating mode; and mounting mechanisms are arranged on opposite inner side walls of the mounting groove, a magnifying lens is arranged between the two mounting mechanisms, each mounting mechanism comprises a mounting block arranged on the inner sidewall of the mounting groove, an L-shaped plate is fixedly connected to the bottom of each mounting block, and the magnifying lens is placed at the upper end of the L-shaped plate. The device is reasonable in structural design, a recorder can conveniently observe and record specific numerical values, a maintainer can conveniently disassemble and assemble the magnifying lens, and normal use is guaranteed.

The invention relates to the technical field of medical sharp instrument storage devices, and discloses intelligent multifunctional sharp instrument separation and storage equipment. The equipment comprises a motor. The motor is controlled to operate to enable a lifting plate and connecting columns to ascend or descend, the connecting columns ascend or descend to drive an upper-layer support to ascend or descend, therefore, a sharp instrument box on a tray is driven to ascend or descend, and a nurse can freely adjust the height of the sharp instrument box according to needs and does not need to bend down frequently to discard waste any more; a weighing sensor is arranged in the tray and can automatically sense the weight of the sharp instrument box and display weight data on a display screen, observation and recording of the nurse are convenient, and manual weighing is not needed; and a push rod is connected to the outer wall of the storage box through an elastic rope, the nurse can push a box cover of the sharp instrument box through the push rod, the nurse does not need to close the box cover with hands any more, so that safety is greatly improved, and the two hands are preventedfrom being scratched by sundries such as glass residues and the like.

The invention relates to the technical field of photoelectricity and particularly to photoelectric technology comprehensive experiment equipment and an operation method thereof. The photoelectric technology comprehensive experiment equipment comprises a cabinet body, a clamping plate assembly, a laser, a clamping assembly and a photoelectric sensor testing assembly. The position of a paperboard on a clamping seat can be adjusted by moving the position of the clamping seat; therefore, intensity of light spots displayed in an interference experiment can be adjusted, use flexibility of the experiment equipment is improved, meanwhile, the optimal experiment display result is conveniently obtained, the experiment effect of the experiment equipment is improved, a first motor drives a gear, the gear drives a conveying chain to move, the conveying chain does not need to be manually moved, the conveying chain can run more stably, quickly and accurately, so the position of the paperboard on the clamping seat can be adjusted more stably, quickly and accurately, use efficiency of the experimental equipment is improved, and accuracy of an experiment performed by the experimental equipment is improved.

The invention discloses a heat preservation water bath device for a surface sizing agent. The device comprises a water bath case and water bath cups, a partition plate and a temperature control system are arranged in the water bath case, and the temperature control system is installed under the partition plate; the upper surface of the water bath case is provided with a table top; a stirring rod containing groove and multiple water bath cup grooves are formed in the table top, the side face of the water bath case is provided with observation windows, and a control panel and a power supply starting and stopping button are fixed at one side of one observation window; each water bath cup is composed of a water bath cup lid, a water bath cup body and a cup belt, wherein the water bath cup lid is connected with the water bath cup body through the cup belt. According to the heat preservation water bath device for the surface sizing agent, by forming the stirring rod containing groove for containing a stirring rod in one side of the table top, an operator can conveniently perform water bath stirring operation; the water bath cup bodies are connected with the water bath cup lids through the cup belts, and therefore the condition that the water bath cup lids are lost or fall off is prevented; by arranging the observation windows on the side face of the water bath case, a reaction generated in the water bath case can be conveniently observed.

The invention discloses a secondary screening method of strain with high yield of lignocellulose degrading enzyme. The method comprises (1) preparing basal culture medium; (2) preparing surface culture medium on the basal culture medium; (3) inoculating to-be-screened strain on the surface culture medium in test tube, and culturing in culture box; and (4) selecting the strains with vigorous growth, formation or no formation of spores, and relatively long transparent layer under black or other background observation as high-yield strain. Compared with traditional screening methods, the inventive secondary screening method has convenient and easy operation, stronger industrial pertinence, and effectiveness for screening high-yield strain adaptable to industrial culture medium.

The invention relates to the technical field of rail transit, and discloses an urban subway platform door closing force detection device. The lower end of a base is fixedly connected with an anti-skid pad, the upper end of the base is fixedly connected with a supporting rod, a sliding rod is arranged in the supporting rod, the upper end of the sliding rod is fixedly connected with a detection box, and the interior of the detection box is of a hollow structure; a sealing cover is arranged at the upper end of the detection box, a display screen is arranged on the front side of the detection box, a closing force detection device is arranged on the detection box, a telescopic mechanism is arranged in the supporting rod, and a fixing rod is fixedly connected to the lower end of the sealing cover. According to the urban subway platform door closing force detection device, when the closing force of the platform door needs to be detected, an operator does not need to hold a detector by hand to detect the closing force of the platform door, so that the accuracy of detection data is ensured, meanwhile, potential safety hazards existing in manual handheld detection are avoided, and the personal safety of the operator is improved.

The invention relates to a wall perpendicularity detection tool, comprising limiting plates, an adjusting device, an infrared measuring instrument and a support rod, wherein the limiting plates comprise a first limiting plate and a second limiting plate, the adjusting device is located at the inner side of the second limiting plate and comprises an adjusting rod, a measuring ruler, an adjusting gear and a fixed frame, the measuring ruler is fixedly connected with the inner surface of the second limiting plate, the upper end of the measuring ruler is provided with scales, the lower end of the measuring ruler is provided with teeth, the fixed frame sleeves the outer end of the measuring ruler, one end, close to the second limiting plate, of the measuring ruler is provided with a groove, thelower surface of the other end of the measuring ruler is connected to a gear rack, the adjusting gear is located in the gear rack, the middle position of the adjusting gear is provided with a rotatinghole a and a limiting slot, the adjusting rod comprises a rotating rod, a rotating ring and a fastening nut, one end of the rotating rod is fixedly connected with the rotating ring, the other end ofthe rotating rod is in threaded connection with the fastening nut, and two stoppers are fixedly arranged at the middle of the rotating rod. The wall perpendicularity detection tool has the advantagesof accurate measurement and convenience in use and observation.

The invention relates to a multichannel direct current high voltage microammeter, comprising at least two measuring modules used for respectively measuring current, a display module used for intensively displaying measured current, and a processor used for reading the measured data of the measuring modules, processing the measured data, and sending the processed data to the display module, wherein each measuring module and the processor form a communication channel, and the processor performs data communication with a corresponding measuring module through a communication channel. A plurality of measuring modules are integrated to communicate with the processor, and the processor intensively processes the measured data and displays the measured data on the display module. The multichannel direct current high voltage microammeter facilitates the observation, recording and intensive processing and analysis of measured current data for users, and can meet complex test demands, and increase current measuring progress.