摘要
木材应力波检测仪采用压电加速度传感器,电磁敲击产生电荷信号,对微弱电荷信号进行电荷放大,电压放大,以及低通滤波处理。分析讨论了MAX4249和MAX7413两种性能优良的芯片在木材应力波检测仪中相应的典型应用实例,并给出了电气参数的计算。
Timber stress wave detector using a piezoelectric accelerometer,electromagnetic signals produced by beating the charge,the charge on the weak signal charge amplifier,voltage amplification and low-pass filtering.Analysis and discussion of the MAX4249 and MAX7413 performance of two kinds of fine wood chips in stress wave detector corresponding typical application examples,and the calcu-lation of electrical parameters.
出处
《黑龙江科技信息》
2016年第17期116-117,共2页
Heilongjiang Science and Technology Information
