The second-order active band pass filter is designed to remove power frequency noise. 设计了用于滤除工频噪声的二阶有源带通滤波器(BPF);
A new tuning method of coupling resonator band pass filter in time domain; 并应用该放大器构成绝对值电路和带通滤波器(BPF)两种功能模块。
Sound surface wave band pass filter a small portable timepiece. 声表面波带通滤波器(BPF)一种小的易携带的表。
Precise design based on Bessel band pass filter and simulations 基于贝塞尔带通滤波器(BPF)精确设计和仿真
An improved AC-based circuit for weak-capacitance measurement is presented. A band pass filter is adopted before the phase sensitive demodulator to improve the accuracy and stability. 提出了改进的交流法微弱电容检测电路,对相敏解调器的输入正弦信号作带通滤波处理,以提高检测精度和稳定性。