The lock-in amplifier is a popular material to use for managing AC signals when noise is present. This unit is made with a microprocessor setup and works with high-resolution ADCs and digital signal controls to make it more effective and sensible. It works from 0.2 Hz to 200 kHz and can filter many inputs as they come into the unit.相放大器是一种受欢的材料使用管理交流的信号噪声存在时。本单元与微处理器置并与分率ADC和数字信号控制使其更有效和理智了。它从0.2兹到200千滤波器的入他们入单位。