| 1. | The measurement system consist of computer , 16 - channel high speed data acquisition board , spark plug pressure sensor , crank angle signal generator , charge amplifier and oscillograph . the max acquisition frequency of this system is 1mhz 由通用微机、 16通道无相差高速数据采集卡、火花塞式压力传感器、角标信号发生器、电荷放大器、示波器组成的高速数据采集系统,最高总采样频率为1mhz 。 |