The interrogation pulse, filter, signal amplifier, voltage comparator and the signal processing circuits are designed and realized.
设计并实现了激励脉冲发射电路、滤波、信号放大、电压比较、检波等信号处理电路。
2
The interrogation technique was based on the use of two (or more) wavelength-matched fiber Bragg gratings (FBGs) to receive the reflected signal from the sensing FBG.