Hydraulic calibration device and calibration method for flexible force sensor array

A sensor array and calibration device technology, applied in the field of sensor calibration, can solve the problems of unbalanced operation, sensor element error, large device volume, etc., and achieve the effects of accurate calibration, reduced errors, and high precision

Pending Publication Date: 2022-01-21
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The deficiencies of the prior art are: the device is bulky, complicated to install, and the equipment is expensive. Most of them use air presses to apply pressure, which has certain potential safety hazards, and there is no balancing operation, and there is a certain error between the sensor elements of the sensor array. ,Affect

Method used

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  • Hydraulic calibration device and calibration method for flexible force sensor array
  • Hydraulic calibration device and calibration method for flexible force sensor array
  • Hydraulic calibration device and calibration method for flexible force sensor array

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specific Embodiment approach 1

[0042] Specific implementation mode 1: Please refer to Figure 1-2 , in this embodiment, a flexible force-sensitive sensor array calibration device includes a control module, a pressurization module, a pressure application module and an acquisition module.

[0043] The working logic of this embodiment is that the control module 9 sets the pressurization parameters, the pressurization module applies preset pressure to the pressure application module, the pressure application module undertakes the pressure and applies it on the acquisition module on average, and the pressure distribution of the two modules Apply, so that the preset pressure can be applied evenly on the acquisition module.

specific Embodiment approach 2

[0044] Specific implementation method two: please refer to figure 2 , in this embodiment, a flexible force-sensitive sensor array calibration device, wherein the pressure source is a hydraulic tank 1, or any suitable pressure source; the pressure module is a pressure column 2, which is used to apply a predetermined Pressure is established; the pressure application module is a partition layer 3 and a flexible bag 4, and the partition layer 3 has selected a stainless steel diaphragm in this method, and can also be any other suitable rigid material, and the flexible bag 4 includes a bag filled in the flexible bag 4. The fluid medium 8, the fluid medium 8 is specifically silicone oil, or any other suitable fluid material; the acquisition module is a flexible force-sensitive sensor array and the corresponding circuit 5 and the corresponding circuit.

[0045] In this embodiment, the control module 9 is connected to the hydraulic tank 1 for setting pressure parameters, the pressure ...

specific Embodiment approach 3

[0046] Specific implementation mode three: please refer to image 3 , In this embodiment, a calibration method for calibration of a flexible force-sensitive sensor array is proposed, the process is as follows, the present invention can select two different calibration methods for the same sensor array according to whether there is a calibration device. When there is a calibration device, first apply pressure to balance, save the balance file, then apply pressure to calibrate, and save the calibration file; when there is no calibration device, read the stored balance file, use the existing balance file to balance, and then read Take the stored calibration file to calibrate the sensor array. The calibration file will be calibrated once when the equipment leaves the factory and the corresponding calibration file will be stored, and the corresponding calibration file will also be stored for calibration when the user performs the calibration operation.

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Abstract

The invention discloses a hydraulic calibration device and calibration method for a flexible force sensor array. The calibration device comprises a control module, a pressurization module, a pressure applying module, an acquisition module and a calibration module. The control module controls the pressurizing module to apply pressure to downwards press a partition layer of the pressurizing module, the pressurizing module uniformly applies the pressure to a flexible force sensor array of the acquisition module, the acquisition module acquires the pressure and transmits the pressure to the calibration module through a corresponding circuit, and the calibration module performs calibration; the calibration method comprises a pressure balancing part and a pressure calibration part, pressure is collected under ten pressure levels, a sensor array is balanced through a balance matrix, and a ten-point method is used for calibration. Through the device and the method, the calibration efficiency, accuracy and safety of the flexible force sensor array are improved, and the purpose of conveniently, quickly and accurately calibrating the flexible force sensor array is achieved.

Description

technical field [0001] The invention relates to the field of sensor calibration, in particular to a hydraulic calibration device and calibration method for a flexible force-sensitive sensor array. Background technique [0002] In contemporary society, the development of artificial intelligence, medical health and other fields is particularly important, and the further advancement of human-computer interaction, sports health monitoring and other fine-grained fields also puts forward stricter and comprehensive requirements for sensors. After the sensor is used for a long time, there will be inevitable errors in its accuracy, so the calibration of the sensor is very important. By calibrating the sensor, the measurement accuracy of the sensor can be effectively improved, the service life of the sensor can be extended, and the user can have a good experience. [0003] There is an invention patent with the publication number 111551311A "Pressure Sensor Calibration Device and Cali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L27/00
CPCG01L27/005
Inventor 杨先军王怀鹏姚志明周旭孙怡宁王辉李红军张晓翟马祖长陈焱焱
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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