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30results about How to "Easy to measure data" patented technology

Suspended particulate matter mass concentration real-time detection device, and measuring method

The invention discloses a suspended particulate matter mass concentration real-time detection device. The suspended particulate matter mass concentration real-time detection device comprises a photoelectric sensor, a voltage amplitude discriminator, an FPGA multi-channel acquisition module, a microprocessor module, a liquid crystal display module, a humidity sensor module, and a power module; signals collected by the photoelectric sensor are transformed into voltage signals via a signal adjusting circuit, and the voltage signals are send to the voltage amplitude discriminator; the voltage amplitude discriminator is connected with the FPGA multi-channel acquisition module and the microprocessor module successively; the microprocessor module is connected with the liquid crystal display module and the humidity sensor module respectively. According to a measuring method using the suspended particulate matter mass concentration real-time detection device, after establishment of a BP neural network via particle swarm optimization, obtained weight values, threshold values, and a mass concentration calculation formula obtained via relative humidity correction are send to the microprocessor module; and the microprocessor module is used for humidity algorithm compensation of received measuring results based on the mass concentration calculation formula; so that influences of environment change on measuring results are avoided, and measuring data is optimized.
Owner:南京金海辉智控系统有限公司

Device for simulating human vocal cord vibration and implementation method thereof

The invention discloses a device for simulating human vocal cord vibration. The device comprises a vocal cord model channel, a vocal cord model, a frequency conversion device, a vacuum pump, an air measurement system, a vibration measurement system, a particle picture speed measurement system, a data acquisition card and a computer, wherein the frequency conversion device is connected with the vacuum pump, and the vacuum pump is arranged at one end of the vocal cord model channel; the air measurement system and the vibration measurement system are arranged on the vocal cord model channel, and output ends of the air measurement system and the vibration measurement system are both connected with the data acquisition card; and the data acquisition card is connected with the computer. A method for simulating the human vocal-cord vibration by using a physical model is designed by the invention; and an emulational vocal cord is simulated by adopting a spring-mass block-damping model theory, and a particle picture speed measurement device is induced, which provides a support for researching and establishing a relation between the vocal cord and a sound production parameter. The method can be used for providing a support for medical researches of vocal cord vibration characteristics and the like under different sound production conditions and different pathological change conditions.
Owner:EAST CHINA NORMAL UNIVERSITY +1

Pressure and displacement testing mechanism for vehicle sunroof

The invention relates to a pressure and displacement testing mechanism for a vehicle sunroof. The mechanism comprises a lower rack assembly and an upper rack assembly which are in butt joint, a vehicle body fixing frame positioning and adjusting device arranged on the lower rack assembly and used for fixing and position adjustment of a vehicle body fixing frame, a suction cup weight balancing device arranged on the upper rack assembly and used for absorbing the vehicle sunroof, and a displacement measuring device used for measuring the displacement amount of the vehicle sunroof. Pressure testing devices used for applying pressure to normal planes of different positions of the vehicle sunroof are arranged on the lower rack assembly and the upper rack assembly respectively. By means of the mechanism, adsorption of the vehicle sunroof and observation of the displacement amount of a certain part of the sunroof under specific gravity adsorption conditions can be achieved. Meanwhile, the displacement amount of the vehicle sunroof at a specific time under the condition of pressurizing and pressure maintaining can be realized in the rigid test; measuring data is accurate, rapid and convenient; the automation degree of the whole testing process is high; the testing efficiency of an enterprise is greatly improved.
Owner:无锡古月精工自动化科技有限公司

Drawing test device for processing of nylon heat insulation strip

The invention provides a drawing test device for processing of a nylon heat insulation strip. The device comprises a base and a clamping assembly. First sliding grooves are formed in the two ends of one side of the top of the base correspondingly; a sliding plate is movably mounted on the first sliding groove; a U-shaped frame is arranged on the sliding plate; a first pneumatic cylinder is arranged in the middle of the top of the U-shaped frame; the output end of the first pneumatic cylinder penetrates through the U-shaped frame and is provided with a clamping plate; a second sliding groove isformed in the middle of the top of the base, and a connecting frame is arranged at one end of the second sliding groove; a connecting block extending into the second sliding groove is arranged at thebottom of the sliding plate; and a tension meter is connected between the connecting block and the connecting frame. The first pneumatic cylinder presses the clamping plate downwards to fix one end of the nylon strip, the clamping assembly clamps the other end of the nylon strip, the nylon strip can be drawn for testing through movement of the sliding plate, the toughness value of the nylon stripcan be obtained through the degree difference of the tension meter, and testing is more convenient.
Owner:安徽优泰新材料有限公司

Narrow space ring groove inner diameter measuring device and use method thereof

The invention discloses a narrow space ring groove inner diameter measuring device and a use method thereof, which relate to a device for measuring the inner diameter of a ring groove of a steam turbine gulp valve seat and a use method of the measuring device, and aim to solve the problem that the inner diameter of an end face ring groove of an existing valve seat cannot be accurately measured. A conical hole, a plurality of first through holes and a second through hole are machined in the sliding seat, the sliding blocks are slidably installed in the second through hole and are symmetrically arranged about the center of the sliding seat, a hole is machined in one end of each sliding block, the other end of each sliding block is machined to be a conical face, a cylindrical pin is installed in each hole, a groove is machined in each sliding block, each stop pin penetrates through each first through hole in the sliding seat and is fixedly mounted in the groove of each sliding block, a conical block is fixedly mounted at the bottom end of the pull rod and is mounted in the conical hole of the sliding seat, and the outer surface of the conical block is in contact with the conical surface of each sliding block. The device is used for measuring the inner diameter of a ring groove of a steam turbine gulp valve seat and belongs to the field of measurement.
Owner:HARBIN TURBINE

A Chest Structure of a Car Crash Dummy with a Collision Detection Method

The invention discloses a car collision dummy chest structure with a collision detection method, and relates to the field of car collision dummy chest structures. The existing chest structure cannot effectively measure data, and the use environment is limited problem, the following scheme is proposed, which includes a base plate, a support frame, and a cover plate, a hinge is provided between the cover plate and the base plate, a support block is provided in the support frame, and a front side of the support frame is provided with a For the dummy mould, slideways are provided at the upper and lower ends of the front side of the support block, and a pressure sensor is arranged in the support frame, and an L-shaped first limiting plate is fixedly connected to the rear side of the pressure sensor. A cavity is arranged in the frame, and the upper and lower inner walls of the cavity are fixedly connected with a second limit block, and the rear side of the pressure sensor is fixedly connected with a threaded barrel, and a threaded rod is sleeved in the threaded barrel. The device has the characteristics of convenient intuitive and effective measurement data, easy disassembly and assembly, and the use of ambient light.
Owner:天津瑷睿赛福科技有限公司

Suspended particle mass concentration real-time detection device and measurement method

The invention discloses a suspended particulate matter mass concentration real-time detection device. The suspended particulate matter mass concentration real-time detection device comprises a photoelectric sensor, a voltage amplitude discriminator, an FPGA multi-channel acquisition module, a microprocessor module, a liquid crystal display module, a humidity sensor module, and a power module; signals collected by the photoelectric sensor are transformed into voltage signals via a signal adjusting circuit, and the voltage signals are send to the voltage amplitude discriminator; the voltage amplitude discriminator is connected with the FPGA multi-channel acquisition module and the microprocessor module successively; the microprocessor module is connected with the liquid crystal display module and the humidity sensor module respectively. According to a measuring method using the suspended particulate matter mass concentration real-time detection device, after establishment of a BP neural network via particle swarm optimization, obtained weight values, threshold values, and a mass concentration calculation formula obtained via relative humidity correction are send to the microprocessor module; and the microprocessor module is used for humidity algorithm compensation of received measuring results based on the mass concentration calculation formula; so that influences of environment change on measuring results are avoided, and measuring data is optimized.
Owner:南京金海辉智控系统有限公司

Close-range electromagnetic measurement method and system

The invention relates to a close-range electromagnetic measurement method and system, and the method comprises the steps of setting a height collection subsystem which is used for measuring the heightof an antenna in real time; dividing the measurement areas in a measurement field, scanning a target body in a vertical interval by adjusting the height of an antenna at a starting point of each measurement area, and recording the corresponding actual field intensity distribution to obtain a reference height value of the corresponding measurement area; starting a carrier vehicle to execute the antenna circular motion to scan a to-be-measured target, acquiring the radar data, and establishing an antenna three-dimensional trajectory model in the scanning process through the height collection subsystem and the carrier vehicle GPS acquisition information; and in combination with the reference height value of each measurement area, performing compensation correction on each acquisition point of the antenna three-dimensional trajectory model and the corresponding radar data to obtain the corrected target close-range electromagnetic measurement data. According to the invention, the radiationgain of the electromagnetic wave emitted by the antenna in the space of the target can be compensated in the measurement process, and the measurement accuracy is improved.
Owner:BEIJING INST OF ENVIRONMENTAL FEATURES

Device for simulating human vocal cord vibration and implementation method thereof

The invention discloses a device for simulating human vocal cord vibration. The device comprises a vocal cord model channel, a vocal cord model, a frequency conversion device, a vacuum pump, an air measurement system, a vibration measurement system, a particle picture speed measurement system, a data acquisition card and a computer, wherein the frequency conversion device is connected with the vacuum pump, and the vacuum pump is arranged at one end of the vocal cord model channel; the air measurement system and the vibration measurement system are arranged on the vocal cord model channel, and output ends of the air measurement system and the vibration measurement system are both connected with the data acquisition card; and the data acquisition card is connected with the computer. A method for simulating the human vocal-cord vibration by using a physical model is designed by the invention; and an emulational vocal cord is simulated by adopting a spring-mass block-damping model theory, and a particle picture speed measurement device is induced, which provides a support for researching and establishing a relation between the vocal cord and a sound production parameter. The method can be used for providing a support for medical researches of vocal cord vibration characteristics and the like under different sound production conditions and different pathological change conditions.
Owner:EAST CHINA NORMAL UNIV +1

Pyrolysis product monitoring device and method based on P-Q regression model of phenolic resin low-temperature pyrolysis gas

The invention discloses a pyrolysis product monitoring device and method based on a P-Q regression model of phenolic resin low-temperature pyrolysis gas, and belongs to the field of gas monitoring. At present, the capability of monitoring fire accidents caused by fire breakout of flammable thermal insulation wall materials is insufficient. The pyrolysis product monitoring device based on a P-Q regression model of phenolic resin low-temperature pyrolysis gas is used for collecting and preparing a pyrolysis gas product released after low-temperature pyrolysis of a phenolic foam thermal insulation material in real time, measuring the pressure parameter P of the gas, the total yield Q of the gas and the time S, establishing a P-Q regression model, and converting into a danger judgment index k through an algorithm; if detection data of the phenolic foam thermal insulation material is greater than the danger judgment index k, the phenolic foam thermal insulation material is subjected to low-temperature pyrolysis and generates toxicity. According to the invention, data detection can be carried out on the phenolic foam thermal insulation material in real time, safety protection can be carried out according to a detection result, and personnel poisoning caused by toxic gas generated by low-temperature pyrolysis of the phenolic foam thermal insulation material can be avoided with high probability.
Owner:HARBIN UNIV OF SCI & TECH

A short-distance electromagnetic measurement method and system

The present invention relates to a short-distance electromagnetic measurement method and system. The method includes: setting a height acquisition subsystem for real-time measurement of antenna height; dividing measurement areas in the measurement site, and adjusting The antenna height scans the object vertically in the interval, records the corresponding actual field strength distribution, and obtains the reference height value of the corresponding measurement area; starts the vehicle to perform circular motion of the antenna to scan the target to be measured, obtains radar data, and passes the height The information collected by the acquisition subsystem and the vehicle-mounted GPS establishes the three-dimensional trajectory model of the antenna during the scanning process; combined with the reference height values ​​of each measurement area, the compensation and correction of each collection point of the three-dimensional trajectory model of the antenna and the corresponding radar data are obtained to obtain Corrected target proximity electromagnetic survey data. The invention can compensate the radiation gain of the electromagnetic wave emitted by the antenna in the measurement process in the space where the target is located, and improve the measurement accuracy.
Owner:BEIJING INST OF ENVIRONMENTAL FEATURES

Circuit breaker switch DC resistance measuring device

A breaker switch direct current resistance measuring device. The outer diameter of a conductive cylinder is smaller than the inner diameter of a cylindrical fixed rod of a tulip contact and the length of the conductive cylinder is larger than that of the tulip contact, a lead is connected with an outer wall at the rear end of the conductive cylinder, the measuring device also includes a push-pull rod and a circular-truncated-cone-shaped supporting block, a plurality of notches are arranged on a side wall at the front end of the conductive cylinder along a circumferential direction, both the push-pull rod and the supporting block are located inside the conductive cylinder and the supporting block is located in front of the push-pull rod, the supporting block, the push-pull rod and the conductive cylinder are coaxially arranged, the diameter of the front end of the supporting block is larger than the inner diameter of the conductive cylinder and the diameter of the rear end is smaller than or equal to the inner diameter of the conductive cylinder, the front end of the push-pull rod is fixedly connected with the rear end of the conductive cylinder, and the rear end of the push-pull rod is located outside the conductive cylinder. Measured data are accurate, a direct current resistance value of a breaker switch can be reflected accurately, unnecessary loss is not caused to generation of electricity, a complicated process of dismounting and mounting the tulip contact is omitted, and the breaker switch direct current resistance measuring device is simple in structure and convenient to operate, and saves both time and labor.
Owner:STATE GRID CORP OF CHINA +1
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