Working principles of dual closed-looptester and parameter design for its major parts are introduced and indoor simulation testing technique for walking tractor discussed.
It describes the measure principle of the clamp grounded resister tester, that is, a effective close loop for current flow is necessary when doing the test.
介绍了钳形接地电阻测试仪的测试原理，即在测量时必须要有一个供电流流过的有效的闭合回路。
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This paper presents a computer test and control system based on closed loop control of pressure and displacement, aiming at the laggard YE-50 pressure tester for package.