本文介绍了一种由8031单片机控制的三参数电池检测仪。该检测仪全部采用无触点继电器和集成电路实现，具有较高的可靠性和抗干扰能力。
The three-parameter battery tester controlled by 8031 chip microcomputer was described. The tester was made of contactless electric relays and IC. Its reliability and noise immunity were high.
新型直流固态继电器是一种以新型器件IGBT以及功率场效应管为核心的，全部由固态电子器件组成的新型无触点开关器件。
The new type DC solid state relay is a kind of new contactless switching device, with the new type IGBT and power field effect tube as the core and composed completely by solid state electron devices.
内用无触点固态继电器，无噪声、理论寿命无限长。内部继电器容量：250V/30A。
Inner contactless solid relay is with lower noise, infinite theoretical service life. Internal relay capacity: 250V/30A.
内用无触点固态继电器，无噪声、理论寿命无限长。内部继电器容量：250V/30A。
Inner contactless solid relay is with lower noise, infinite theoretical service life. Internal relay capacity: 250V/30A.
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