The design method, operational principle and circuit process of programmable weak current amplifier based on ICL7650 were introduced, and the amplifiers circuits were partially given.
设计一种基于短路电流放大器的瞬间变化电流的检测仪，并对其电路工作原理和测量精度做了分析。
An OPA128 operational amplifier with extreme low bias current and big gain is adopted for enhancing the response to weak signals.
同时为了保证测量精度，采用偏置电流极低的运算放大器opa128，并且增大了反馈电阻，以增强对弱信号的响应。
The measuring system is composed of instrumental amplifier AD623 and transmitter XTR115 to amplify weak signal and transmit current loop signal.
本应变测量系统由仪表放大器ad623和电压电流变送器XTR115构成，实现弱信号放大和电流环信号传输。
The measuring system is composed of instrumental amplifier AD623 and transmitter XTR115 to amplify weak signal and transmit current loop signal.
本应变测量系统由仪表放大器ad623和电压电流变送器XTR115构成，实现弱信号放大和电流环信号传输。
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