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随着时间的推移,八十年代起引进的仪器设备已有相当数量面临老化、坏损等问题,每年以5%的速度因故障而停机和报废,同时由于寿命等原因这一速度还在加快.这一情况已引起了许多专家的忧虑,这些集成度很高的电子设备按照常规的换板和传统的维修从时间上和经济上都是力不从心的.因此.国外一些电路维修测试仪器相继涌入国内市场.国内也出现了一些类似的维修仪器.这些电路维修测试仪器,主要可分为两大类;一类是价格在几十至上百万元的针床式电路维修测试仪,其主要特点是整板测试,测试速度快,诊断率高,但前期准备工作复杂,因此适用于品种少、数量多的维修场合,这类测试仪一般用于检修流水线上下来的故障板;再一类是价格在数千元至几万元的电路维修测试仪,其主要特点是逐一的器件测试,测试速度及诊断率略低于针床式,但前期准备工作简单,因此适用于品种多、数量少的维修场合.这类测试仪适用于一般从事专业维修的单位或单位内部的设备及仪器维修.
With the passage of time, a large number of instruments and equipment imported since the 1980s have faced such problems as aging and damage. They are halted and scrapped at a rate of 5% every year due to failures, and the speed is accelerating due to life expectancy and other reasons This situation has aroused the concern of many experts, these highly integrated electronic equipment in accordance with the conventional board replacement and the traditional maintenance of both time and economic powerless. Therefore, some foreign circuit repair test equipment in succession Into the domestic market. There have also been some similar domestic maintenance of these circuit repair test equipment, can be divided into two categories; one is the price of dozens to millions of needle bed circuit repair tester, the main Characteristics of the whole board testing, testing speed, high diagnostic rate, but the preparatory work is complex, so apply to a small variety, the number of maintenance occasions, such testers are generally used to repair the fault line up and down the assembly line; another class Is the price of a few thousand dollars to tens of thousands of circuit repair tester, its main feature is one by one device testing, test speed and diagnostic rate slightly lower than the needle bed type, but the preparatory work is simple, This applies to varieties, a small number of service occasions. Such tester for general maintenance in the professional unit or units inside the device and equipment maintenance.