30results about How to "Good real-time measurement" patented technology

The invention relates to the field of agriculture and forestry plant protection technology, and more particularly relates to a device for measuring the droplet charge-mass ratio of electrostatic spraying droplets. The device is characterized by comprising a faraday cylinder (1), a coulometer (2), a water outlet pipe (3), a liquid collecting barrel (4) and a computer (5). The faraday cylinder (1) and the coulometer (2) are connected. The coulometer (2) and the computer (5) are connected. The water outlet pipe (3) is communicated with the bottom of the faraday cylinder (1). The bottom of the liquid collecting barrel (4) is provided with a weight sensor (17). The weight sensor (17) and the coulometer (2) are connected. The liquid collecting barrel (4) is used for collecting the liquid that flows out of the water outlet pipe (3). Compared with the prior art, the technical effects of small charge loss between sealed inner and outer cylinders, easy operation, good measurement real-time performance, high accuracy, high cost performance, convenient movement measurement and the like are realized.

The invention discloses a frequency measuring system for a universal voltage input power frequency signal. The system consists of a signal conditioning circuit, an isolation operational amplification circuit, a lowpass filtering circuit, a comparator circuit and a digital signal processor, wherein the signal conditioning circuit is designed by adopting a universal circuit, an alternating current power frequency signal is suitable for a voltage range from 1V to 250V, thus meeting most application occasions of a power system, the isolation operational amplification circuit is used for isolating strong current signals from weak current signals and replacing the traditional transformer components, the lowpass filtering circuit and the comparator circuit are matched with the isolation operational amplification circuit for changing alternating current signals into direct current signals, and signals output by the comparator circuit do not need to be subjected to signal isolation and can be directly connected to the digital signal processor for finishing frequency calculation. The method has the characteristics of simple circuit, small size, little phase delay and the like.

The invention discloses a method for measuring the velocity and direction of a ship to water by directional ultrasonic waves. The method comprises a step of installing two pairs of directional ultrasonic wave transceivers at the bottom of the ship such that the installation positions of the two pairs of ultrasonic transceivers are in a vertical state, a step of carrying out multiple times of measurement to obtain an average time of the ultrasonic waves spread back and forth in each group of ultrasonic wave transceivers in a ship driving process, a step of calculating a water flow velocity which is parallel to a ship driving direction and a water flow velocity which is perpendicular to the ship driving direction, and a step of calculating an angle between a resultant velocity of water flow and the ship driving direction. Through the above measurement method, the real-time measurement of a ship velocity to water and a water flow direction can be realized. In the measurement process, the size of the ship is not limited, the anti-interference ability is high, the measurement accuracy is high, the real-time performance is good, and the method can be adapted to various occasions such as river water and sea water.

The invention relates to a measuring device and specifically relates to an embedded three-dimensional force and torque measuring device for a light-weight flexible mechanical arm joint. The embedded three-dimensional force and torque measuring device comprises an elastic body unit, light barrier sheets, support devices and photoelectric displacement sensors. The elastic body unit comprises an outer ring, an inner ring and elastic ribs. The outer ring and the inner ring are connected through the plurality of elastic ribs; each elastic rib is provided with one light barrier sheet; and each light barrier sheet is corresponding to one photoelectric displacement sensor arranged to the outer ring through one support device. The embedded three-dimensional force and torque measuring device is simple in structure, small in size, light in weight, high in reliability, good in rigidity and good in real-time performance, and is suitable for the light-weight compact-structure mechanical arm joint.

The invention discloses a mounting structure of a grid-method mixed sampling device for outlet flue gas of a denitrification device. The mounting structure comprises a denitrification device outlet flue and an air pre-heater outlet flue, and further comprises multi-point sampling pipes, a variable-section collection pipe, a sampling main pipe and a sampling cavity; two or more than two multi-pointsampling pipes are arranged and mounted on the section of the denitrification device outlet flue at equal distance; the variable-section collection pipe is mounted in the denitrification device outlet flue; the bottoms of the multi-point sampling pipes are communicated with the variable-section collection pipe; one end of the sampling main pipe is communicated with the variable-section collectionpipe and the other end of the sampling main pipe is communicated with the air pre-heater outlet flue; and the sampling cavity is arranged on the sampling main pipe. The mounting structure is especially applicable to mixed sampling and measurement of NOx and / or ammonia escaping concentration of a denitrification device outlet; a sampling manner meets the recommended standards of China; a collectedflue gas sample can rapidly and automatically enter a measurement instrument by utilizing the pressure difference of the denitrification device outlet flue and the air pre-heater outlet flue; and themounting structure has good measurement timeliness, is stable and reliable in sampling and has the remarkable advantages of low cost, less maintenance working amount and the like.

The invention discloses a temperature detection device and a detection method of an intelligent electric energy meter connector. The detection device includes a temperature measurement component. machine, the host computer is also connected with the current riser; the temperature measurement assembly includes an electric energy meter housing, and a plurality of vertically arranged metal meter tail holes are installed side by side on the outside of the electric energy meter casing, and the metal meter There are intervals between the tail holes, and the bottom of the tail hole of the metal meter has a standard hole matched with the tested connector, and the opening of the standard hole is exposed at the bottom of the electric energy meter housing; the metal meter tail There is also a temperature acquisition unit installation hole on the top of the hole. The temperature sensing head is buried in the tail hole of the metal meter, so that it can fully contact with the electric energy meter connector when measuring the temperature, and directly replace the connector when measuring again, which improves the accuracy and speed of the test.

The invention relates to a data glove based on a flexible capacitance sensor and a joint movement angle measuring method, which solve the technical problems of low detection precision, poor wearing comfort, short service life and high manufacturing cost of the existing data glove, and the data glove comprise a glove body provided with finger parts; joints of the finger parts are connected with flexible capacitive sensors, each flexible capacitive sensor comprises a silicone rubber sensor body, each silicone rubber sensor body is provided with a dielectric layer, two electrode layers and two protective layers, and the two electrode layers are connected with wires respectively. The invention can be widely applied to the field of flexible wearable equipment.

A universal voltage input power frequency signal frequency measurement system is mainly composed of a voltage conversion circuit, a conversion voltage self-adjustment and amplification circuit, a band-pass filter circuit, a comparator circuit, a digital signal processing circuit and a power supply circuit. The voltage conversion circuit can be applied to a 0 to 300V AC power frequency signal inputand can satisfy most of the application occasions of a power system. The conversion voltage self-adjustment and amplification circuit can automatically adjust the amplification factor of an output voltage according to the amplitude of the output voltage of the voltage conversion circuit to meet the weak power frequency signal frequency detection requirement. The band-pass filter circuit achievesa good selectivity of power frequency signals with a center frequency around 50Hz to suppress the interference of high-frequency signals. The comparator circuit converts an input AC signal into a DC signal, and the signal output by the comparator circuit does not require signal isolation and can be directly connected to the digital signal processor to complete the frequency calculation. The universal voltage input power frequency signal frequency measurement system in the invention has the characteristics of simple circuit, small phase delay, wide application range and high reliability.

The invention relates to a torque sensor for a joint of an operating robot with force perception, in particular to a torque measuring device for a joint of a mechanical arm, which can be applied to the flexible joint of a light-duty mechanical arm of an operating robot and related fields, including elastic bodies, measuring heads and displacement detection device, wherein the elastic body is divided into an outer ring and an inner ring, and the inner ring and the outer ring are connected by elastic ribs; the displacement detection device is installed on the outer ring, and the measuring head is installed on the elastic rib close to the inner ring One end, corresponding to the displacement detection device, can move along the circumferential direction of the elastic body relative to the detection direction of the displacement detection device. The invention is simple and compact in structure, small in size and weight, easy to install, reliable and practical, has high detection sensitivity, good rigidity, good real-time measurement and high precision, and meets the design requirements of light mechanical arm joints.

A photonic crystal composite pressure sensor includes a flexible substrate and a photonic crystal, the photonic crystal is distributed on the surface or inside of the flexible substrate, and the photonic crystal can generate optical signal changes in response to the deformation of the flexible substrate. The invention also relates to a method for a photonic crystal compound pressure sensor, comprising: preparing a photonic crystal precursor liquid; preparing a matrix precursor liquid; compounding the photonic crystal precursor liquid and the matrix precursor liquid to obtain a photonic crystal compound pressure sensor. The present invention also relates to an optical detection method, comprising: placing the hollow cylinder above the photonic crystal composite pressure sensor; applying dynamic pressure to the hollow cylinder, and the optical probe applies the photonic crystal composite pressure through the hollow part of the hollow cylinder The optical signal of the sensor is dynamically detected. The invention has sensitive linear pressure response characteristics in the low-pressure area of ​​0-10KPa, the raw materials are easy to obtain, the preparation method is simple, and the application range is wide.

The invention relates to a power reactive compensation controller which belongs to the technical field of power and comprises a low voltage distribution network reactive compensation module and a main control module. The low voltage distribution network reactive compensation module comprises a voltage detection module, a power factor detection module and a single chip microcomputer, wherein, the voltage detection module and the power factor detection module respectively measure the voltage and power factor angle, and the single chip microcomputer calculates the capacity that needs reactive compensation; the main control module comprises a watch dog circuit module, a keyboard input module, a display module, a voltage and current A / D module, a serial communication circuit module and a lowerlayer controller serial module, wherein, the watch dog circuit module has the function of protecting the circuit; the keyboard input module and the display circuit module can realize man-machine communication; the serial communication circuit module is responsible for transferring data information of the capacity that needs reactive compensation in the single chip microcomputer to the lower layercontroller serial module; the lower layer controller serial module controls a compensation capacitor group. The power reactive compensation controller can enhance the power factor of users at low voltage side of the distribution network.

The invention discloses a relevance vector machine soft measurement modeling method based on triangular angle value dynamic weighting in the field of product quality control in industrial production. Based on relevance vector machine modeling, a time delay unit is added at an input end of a model, meanwhile, an algorithm based on triangular angle value dynamic weighting is proposed, dynamic information of an actual industrial process is fused into a soft measurement model by proportional allocation of dynamic weights, the dynamic weights are reasonably allocated, and weighting fusion is carried out, so that a modeling process of the soft measurement model is further approached to the actual industrial production process and can be suitable for dynamic variations and requirements of the industrial field production process better; and by converting dynamic time modeling into static spatial modeling, not only is complexity of the soft measurement model not increased, but also prediction accuracy of the model is improved, and finally, dynamic soft measurement of the industrial production process is implemented.

The invention relates to a diagnosis method of a low temperature plasma density parameter at an atmospheric pressure, and belongs to the field of plasma. A series of problems that the traditional diagnosis method of plasma has low precision, poor efficiency, higher environmental requirements, short service life, higher cost and the like in the measuring process are solved. The method comprises the following steps that: 1. the gas pressure drop Ug(t) in a discharge channel is detected by a voltage transformer; 2. the conduction current jc (x, t) is detected by a current transformer; 3. the total discharge current JT is obtained according to the gas pressure drop Ug (t) in the discharge channel obtained from a step 1 and the conduction current jc (x, t); 4. the plasma density n (t) is obtained according t the total discharge current jT obtained from a step 3; and 5. the discrete plasma density nm +1 (t) is obtained so as to achieve the diagnosis of the plasma density parameter.

The invention relates to an ion measuring device. The ion measuring device comprises an ion optical system, wherein the ion optical system comprises an ion lens, and the ion measuring device is characterized by also comprising an isolation pulse power supply which is connected with the ion lens as well as a control unit and a processing unit, which are connected with the isolation pulse power supply; the control unit controls the isolation pulse power supply to supply voltage to the ion lens, and the processing unit receives and calculates ions transmitted by the ion lens. The ion measuring device has the advantages of good measuring real-time property, small measuring error, low cost, simplicity and convenience in measurement and the like.

The invention relates to a soft sensor carrier manufacturing die, a soft sensor integration method and a sensing garment. The soft sensor carrier manufacturing die, the soft sensor integration methodand the sensing garment solve the technical problems that an existing wearable motion measurement mode is low in accuracy and precision, and poor in comfort performance of wearing. The die comprises an upper base plate, a lower base plate, a first upper magnet, a second upper magnet, a first lower magnet and a second lower magnet, wherein a carrier forming hole is formed in the middle of the upperbase plate, a first upper magnet containing groove and a second upper magnet containing groove are formed in the two ends of the upper base plate, the two ends of the lower base plate are connected with the first lower magnet and the second lower magnet respectively, and a groove is formed in the middle of the lower base plate. The soft sensor carrier manufacturing die, the soft sensor integration method and the sensing garment can be widely applied to the technical field of wearable detection.

The invention discloses shaping detection equipment for a squeezing and expanding supporting-dish cast-in-place pile, comprising a working platform, a rotary hydraulic motor, an extension bar, a squeezing and expanding mechanism for supporting-dish shaping and a hydraulic control center, wherein the rotary hydraulic motor is in transmission connection with the extension bar; the lower end of the extension bar is provided with a hydraulic cylinder; the middle of the inner cavity of the hydraulic cylinder is provided with a hydraulic piston; a piston rod is fixedly connected with the hydraulic piston; the piston rod extends out of the lower end of the hydraulic cylinder; the piston rod is connected with a four connecting rod supporting-dish squeezing and expanding arm; a displacement sensorfor detecting the shift motion of the piston rod is arranged in the hydraulic cylinder; one end of the displacement sensor is installed on the top wall of the upper cavity of the hydraulic cylinder, and the other end of the displacement sensor is installed on the upper end of the hydraulic piston; and the displacement sensor is connected with a detection control module which is used for calculating the size of a supporting-dish hole based on a displacement of the piston rod to realize forming detection. The shaping detection equipment is simple in operation, has strong instantaneity and high working efficiency and effectively adapts to severe working conditions.

A universal voltage input power frequency signal frequency measurement system is mainly composed of a voltage conversion circuit, a conversion voltage self-adjustment and amplification circuit, a band-pass filter circuit, a comparator circuit, a digital signal processing circuit and a power supply circuit. The voltage conversion circuit can be applied to a 0 to 300V AC power frequency signal inputand can satisfy most of the application occasions of a power system. The conversion voltage self-adjustment and amplification circuit can automatically adjust the amplification factor of an output voltage according to the amplitude of the output voltage of the voltage conversion circuit to meet the weak power frequency signal frequency detection requirement. The band-pass filter circuit achievesa good selectivity of power frequency signals with a center frequency around 50Hz to suppress the interference of high-frequency signals. The comparator circuit converts an input AC signal into a DC signal, and the signal output by the comparator circuit does not require signal isolation and can be directly connected to the digital signal processor to complete the frequency calculation. The universal voltage input power frequency signal frequency measurement system in the invention has the characteristics of simple circuit, small phase delay, wide application range and high reliability.

The invention discloses a power transmission line waving track calibration system based on a light curtain sensor and a calibration method. The power transmission line waving track calibration system comprises a light curtain sensor system, a signal conditioning conversion system, a data collecting conversion system and a monitoring analysis system, wherein the emitting ends and the receiving ends of multiple groups of transverse light curtain sensors are respectively and fixedly arranged at the upper side and the lower side of the power transmission line waving range; the setting ends and the receiving ends of the multiple groups of longitudinal light curtain sensors are respectively and fixedly arranged at the left side and the right side of the power transmission line waving range; the monitoring analysis system screens out all high-level signals, and simultaneously records corresponding time of each high-level signal; the power transmission line waving track is finally drawn through inquiring the positions of the light curtain sensors corresponding to each high-level signal. The calibration system and the calibration method have the advantages that the high-sensitivity calibration on the waving track of a power transmission line driven by an indoor waving machine can be realized, the measurement precision is high, the measurement errors are small, and the continuity and the completeness of the power transmission line waving track calibration are guaranteed.

The invention discloses a device and method for measuring fuel oil consumption of an engine and belongs to the field of engine fuel oil detection equipment. The device is provided with an auxiliary oil tank (11). One end of an engine oil inlet pipe (5) and one end of an engine oil outlet pipe (6) are connected with the engine, and the other end of the engine oil inlet pipe (5) and the other end of the engine oil outlet pipe (6) are inserted into the auxiliary oil tank (11). A high liquid level sensor (8) is arranged on the upper portion of the auxiliary oil tank (11), a low liquid level sensor (9) is arranged on the lower portion of the auxiliary oil tank (11), and the auxiliary oil tank (11) is connected with a large engine oil tank (13) through an oil pipe (2). The measurement method includes the steps that after a system is powered on, whether the engine operates or not is judged; whether power failure exists or not is judged; whether a high oil level signal exists or not is judged; whether a low oil level signal exists or not is judged, and then corresponding control is carried out; the auxiliary oil tank is adopted for detecting and controlling oil inlet amount in real time. By means of the device and method, the oil consumption of the engine can be accurately measured, cost is low, and the problems of oil return pulsation and bubbles of the engine are effectively solved. The device and method have the advantages of being good in measurement real-time performance and the like.

The invention relates to a device for measuring suspended load sand content through a specific heat capacity method in a non-contact mode, and belongs to the technical field of suspended load sand content measurement. The device comprises a sampling heater, a sampling telescopic rod, a display-control single chip microcomputer, and a device connecting circuit. The sampling telescopic rod is used for placing the sampling heater to a water area to be measured, and a gate switch handle is used for opening a water-passing gate for sampling. The display-control single chip microcomputer is started to heat internal water samples through resistive heaters. A temperature sensor is used for measuring temperature, and the display-control single chip microcomputer is used for automatically measuring time. The display-control single chip microcomputer is used for automatically obtaining liquid specific heat of combustion according to rising temperature, heating time, electric heating calculated values and other parameters, and outputting sand content values through the relation of the input specific heat of combustion and sand content. The device is a reliable measuring instrument for measuring sand content of water areas with high sand content, measuring instantaneity is good, measuring work is greatly simplified, and the device can be used for monitoring water sand conditions in real time at flood seasons.