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南京电讯仪器厂研制成功EE839型在线测试仪并已投产。该仪器由微机控制,吸取英国温克尔公司的先进技术,利用运算放大器的虚地特性,把被测元件与电路中的其它元器件在电气上隔离开来,排除外用元器件对被测元件的影响,使被测元件不必从线路板上取下来,实现元件在线测量。测量结果经微机处理
Nanjing Telecommunications Instrument Factory successfully developed EE839-based on-line tester and has been put into operation. The instrument controlled by the computer, learn the British company Winkel advanced technology, the use of operational amplifier virtual characteristics, the measured components and other components in the circuit electrically isolated, excluding external components of the device under test The impact of the measured components do not have to remove from the circuit board to achieve online measurement of components. Measurement results by the computer