A kind of piezoresistive ultrasonic sensor based on MEMS is proposed,which is composed of a membrane and two side beams.......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

为了提高水下声探测能力,提出基于高速DSP的水下声探测系统设计方法,水下声探测系统包括信号采集模块、声回波检测模块、滤波模块......