Multi-function potentiometer performance test system

Abstract

The present invention discloses a multi-function potentiometer performance test system, comprising a control system, an actuator, a digital multimeter, a host computer test system, and a potentiometer installing platform; wherein the host computer test system and the control system perform data exchange through an RS422, and the control system controls the actuator to drive a potentiometer to be tested to rotate according to an instruction of the host computer test system; the potentiometer installing platform is used to install the potentiometer to be tested; and the digital multimeter is used to test resistance data of the potentiometer and feed back the resistance data to the host computer test system through own RS232 serial port. The system has the advantages that, the system can automatically drive the potentiometer to rotate, is capable of digital display, can automatically interpret data, has high test precision, has convenient and rapid test process, and is capable of batch testing, etc., and significantly improves efficiency of the potentiometer entering a factory and of fault analysis.

Description

technical field [0001] The invention belongs to a testing device, in particular to a multifunctional potentiometer performance testing system. Background technique [0002] The multifunctional potentiometer test system is mainly used for the factory inspection of the potentiometer and the factory acceptance test of the actuator. This system is a device for testing the linearity and smoothness of potentiometers. The device consists of five parts: control system, actuator, digital multimeter, upper computer test system and potentiometer installation platform. Its purpose is to test the output characteristics of the potentiometer; one is to test the potentiometers that have not been assembled in the factory to screen out the potentiometers that do not meet the requirements of the indicators to ensure the pass rate of the actuator products; the other is to test the installed potentiometers. The device and the actuators that are ready to leave the factory are accepted for accep...

AI Technical Summary

Problems solved by technology

These methods all have the following disadvantages: one is that there is a large error in the reading of the human eye, and the sudden change of the resistance value of the potentiometer cannot be captured in time, and the data during the test cannot be saved; the other is that these methods are open-loop methods , through the tester turning the potentiometer to observe the change of its resistance value, the tester cannot guarantee to rotate the potentiometer at a constant speed, which will lead to a large test error; the third is that these methods are low in test efficiency and cannot meet the requirements of mass production

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