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A force sensitive resistance tester

A technology of force-sensitive resistors and resistance measuring instruments, which is applied to the calibration/testing of force/torque/power measuring instruments, instruments, and measuring devices, etc., which can solve the problems of high cost of testers and inaccurate measurement accuracy, and achieve The resistance value is uniform, the continuity and efficiency are guaranteed, and the effect of reducing errors

Active Publication Date: 2020-06-12
北京京瀚禹电子工程技术有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

In the existing technical application fields, the force sensitive resistor has a circumferential surface induction type and a vertical surface induction type; no matter what type it is, it is necessary to test the finished product when it leaves the factory to ensure a certain product qualification rate. In the existing production workshop, the acceptance test of the finished force sensitive resistors is carried out by precise and complex instruments. For surface-sensitive force sensitive resistors, the measurement accuracy is not accurate enough

Method used

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  • A force sensitive resistance tester
  • A force sensitive resistance tester

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0026] according to figure 1 with figure 2 , the force-sensitive resistance tester includes a pressing mechanism 1, a pressure sensor 2 and a resistance measuring instrument 3, and the pressing mechanism 1 includes two driving rollers 1a and two driven rollers 1b, wherein the two driven The roller 1b is fixed on the output shaft of a horizontal cylinder 1c, and the distance between the two driven rollers 1b and the two driving rollers 1a can be adjusted by the action of the cylinder 1c. The two active rollers 1a are driven by a vertically placed motor 1d, and when the motor 1d rotates, the active rollers 1a rotate accordingly. The two driving rollers 1a are connected by the first belt 4 to realize mutual driving; the two driven rollers 1b are connected by the second b...

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Abstract

The invention discloses a force sensitive resistor tester comprising a compressing mechanism, a pressure sensor and a resistance measuring instrument. The compressing mechanism comprises two driving rollers and two driven rollers. The two driving rollers are driven by a vertically arranged motor. The two driven rollers are fixed on a horizontally arranged air cylinder output shaft. The two drivingrollers are connected through a first belt. The two driven rollers are connected through a second belt. The first belt and the second belt contact the circumferential surface of a force sensitive resistor. The probe of the pressure senor contacts the surface of the first belt or the second belt. The contact surface of the belts and the force sensitive resistor is large, and each induction point contacts the belts in the measuring process so that the measurement value is ensured to be more uniform and accurate. Besides, the air cylinder adjusts the contact pressure of the belts and the force sensitive resistor so that the measuring process is ensured to be continuous, and thus the tester is simple in structure and can realize accurate measurement.

Description

technical field [0001] The invention relates to the technical field of resistance measuring equipment, in particular to a force sensitive resistance tester. Background technique [0002] Force-sensitive resistor is a special element that can convert mechanical force into electrical signal. It is made by using the piezoelectric resistance effect of semiconductor materials, that is, the resistance value changes with the magnitude of the applied force. Mainly used in various tensiometers, torque meters, accelerometers, semiconductor microphones and various pressure sensors. In the existing technical application fields, the force sensitive resistor has a circumferential surface induction type and a vertical surface induction type; no matter what type it is, it is necessary to test the finished product when it leaves the factory to ensure a certain product qualification rate. In the existing production workshop, the acceptance test of the finished force sensitive resistors is ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L25/00G01L27/00
CPCG01L25/00G01L27/00
Inventor 卢丽菊
Owner 北京京瀚禹电子工程技术有限公司
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