The simulation result shows that the dynamic response and the detection precision in detection circuit can be greatly influenced by the cut-off frequency, order and type of low pass filter.
结果表明，低通滤波器的截止频率、阶数和类型对检测电路的动态响应过程、检测精度都有很大影响。
A damping circuit is a type of low pass filter that reduces the electrometer's ac response so the low DC current can be measured accurately.
该衰减电路是一种降低静电计交流响应的低通滤波器，使我们可以准确地进行直流弱电流的测量。
Which use MQ-2 combustible gas sensor-type semiconductor sensors to achieve smoke smoke detection, high sensitivity, fast response, strong anti-interference, etc, and the price low, long service life.
其中选用MQ-2型半导体可燃气体敏感元件烟雾传感器实现烟雾的检测，具有灵敏度高、响应快、抗干扰能力强等优点，而且价格低廉，使用寿命长。
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