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Calibration device and calibration method of a transient tester

A calibration method and tester technology, which is applied to measuring devices, instruments, and measuring electrical variables, etc., can solve problems such as heavy workload, slow speed, and inconsistent application scenarios of transient testers, so as to solve the problem of heavy workload and reduce manpower , Improve the effect of calibration efficiency

Active Publication Date: 2022-03-04
BEIJING DONGFANG MEASUREMENT & TEST INST
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional calibration method has the common shortcomings of manual calibration, such as heavy workload and slow speed.
[0011] 3) The method of step-by-step calibration of the "transient resistance" parameter and the "transient time" parameter is inconsistent with the actual application scenario of the transient tester

Method used

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  • Calibration device and calibration method of a transient tester
  • Calibration device and calibration method of a transient tester
  • Calibration device and calibration method of a transient tester

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Embodiment Construction

[0042] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0043] The invention proposes a scheme combining program-controlled resistance source, standard signal generating circuit and high-speed field effect tube, with 16 circuits in total. The parameter calibration of "instantaneous break determination resistance" is realized by a program-controlled resistance source, and the parameter calibration of "instantaneous break time measurement" is realized by a signal generating circuit and a high-speed field effect tube. The specific schematic diagram is as follows: figure 1 , 2 shown.

[0044] Resistor parameter calibration for instantaneous break determination—programmable resistance source scheme

[0045] The invention makes full use of the calibration value of each resistance, combines with an algorithm to calculate the relay switch combination, and realizes the accurate setting of 10mΩ-10GΩ, and the erro...

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Abstract

The invention discloses a calibration device and a calibration method for a transient tester, belonging to the technical field of calibration of a transient tester, including two parts: calibration of a transient determination resistance parameter and a calibration of a transient time measurement parameter; the RH series or RL A series of resistors are connected or connected to the circuit, which can realize the continuous adjustment of the resistance value of the high-resistance source and the low-resistance source within the output range; the measurement parameter calibration of the transient time is generated by a combination of a standard signal generation circuit and a high-speed field effect tube. The standard value of the transient time can simulate the transient state by controlling the on-off state and on-off duration of the high-speed FET, and realize the calibration of the transient time measurement parameters of the transient tester. The combination scheme of standard signal generation circuit and program-controlled resistance source is adopted. The program-controlled resistance source realizes the calibration of the instantaneous break judgment resistance, and the combination of the standard signal generator and the high-speed field effect tube realizes the calibration of the instantaneous break time measurement.

Description

technical field [0001] The invention belongs to the technical field of calibration of a transient tester, and in particular relates to a calibration device and a calibration method of a transient tester. Background technique [0002] The transient tester is a kind of transient resistance testing equipment, which is widely used in aerospace, aviation and other fields. It is mainly used in the vibration test occasions of electrical connectors and relays. When the contact resistance of electrical connectors and relays is greater than a certain set judgment resistance value, this type of equipment can alarm and display the instantaneous break time. Its working principle block diagram is as follows figure 1 as shown, [0003] The principle of the transient tester: the measured resistance forms a measurement circuit with the voltage source and the voltage dividing resistor inside the transient tester. The voltage value at both ends of the measured resistance is compared with th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/00
CPCG01R35/005
Inventor 殷聪如梅高峰严明桑尚铭温星曦罗震张显
Owner BEIJING DONGFANG MEASUREMENT & TEST INST
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