A pressure sensor rotating centrifugal force characteristic test system
A pressure sensor, rotating centrifugal force technology, applied in the measurement of fluid pressure, instruments, force/torque/work measuring instruments, etc., can solve the problems of increasing pressure test data errors, inability to separate, etc., to improve test accuracy and avoid high costs and unreliable effects
Active Publication Date: 2021-02-05
CHINA NORTH VEHICLE RES INST
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Problems solved by technology
This additional electrical signal is superimposed on the normal liquid pressure signal and cannot be separated, resulting in an increase in the error of the pressure test data
Method used
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[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0021] as attached figure 1 As shown, the present invention provides a pressure sensor rotating centrifugal force characteristic test system, the system includes a pressure sensor rotating test bench 4, a hydraulic adjustment system 5 and a data acquisition and display system 2, wherein the frequency converter 1 controls the pressure sensor rotating test bench 4 The rotating speed of the middle power motor 6, the hydraulic oil tank 3 supplies oil for the hydraulic adjustment system.
[0022] The pressure sensor rotary test bench 4 is arranged in a "one" shape, and the oil return pump group of the hydraulic adjustment system 5 is arranged close to the pressure sensor rotary test bench 4, which is convenient for connection and signal collection.
[0023] as attached figure 2 and 3 As shown, the pressure sensor rotary test bench 4 includes a power motor 6...
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The invention discloses a pressure sensor rotating centrifugal force characteristic test system. The system includes a data acquisition and display system, a pressure sensor rotating test bench and a hydraulic adjustment system; Calibrate the form of the sensor in the rotating state. One end of the U-shaped oil passage is installed with the measured pressure sensor, and the other end is installed with the standard pressure sensor. The U-shaped oil passage communicates with the measured oil chamber. The standard pressure sensor is fixed and the output pressure value is The standard pressure of the oil passage; the pressure sensor under test rotates synchronously with the U-shaped oil passage, and the output pressure value is used as an indication value; the hydraulic adjustment system supplies oil to the oil chamber under test in the rotating test bench of the pressure sensor to realize the oil chamber under test Accurate control of the pressure, temperature and flow of the oil in the oil chamber, the data acquisition system realizes the real-time test of the pressure, temperature and flow of the oil in the measured oil chamber, and can also provide feedback signals for the hydraulic adjustment system.
Description
technical field [0001] The invention relates to the technical field of pressure sensor testing and measurement, in particular to a testing system for the centrifugal force characteristic of a pressure sensor. Background technique [0002] The transmission mechanism of the high-power integrated transmission usually adopts a wet multi-disc clutch, and the main structure of the multi-disc clutch is the friction pair and the pressure cylinder. The pressure data of the pressure cylinder is a key parameter for the performance matching calculation of the transmission system. The clutch combination pressure is provided by the pressure cylinder, which is a key parameter for designing shift sequence and shift characteristics, and is a key boundary condition for simulation calculation. The combination pressure is constantly changing during the clutch combination process, presenting a kind of oil pressure buffer characteristic, which affects the shift performance by affecting key param...
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IPC IPC(8): G01L5/00G01L27/00
CPCG01L5/0066G01L27/002
Inventor 宋美球吕庆军卜树峰徐宜陈嘉杨乔丽王敏张喜明张金乐韩博段三星王锦霞
Owner CHINA NORTH VEHICLE RES INST