多类型振动信号采集卡设计

在飞机测试系统中,机上某些关键部位原始振动信号带宽高,且测试振动信号的加速度传感器种类多,后端采集设备往往只能采集单一类型传感器振动信号,导致采集设备种类多,不具备兼容性.针对上述问题,设计了一个适合多类型振动传感器信号、高带宽、高精度的机载振动信号采集卡.与传统的单一类型传感器信号采集卡相比,基于FPGA控制系统设计的振动参数采集卡具有输入信号多类型、采样率可配置、采集精度高等优点,适合在复杂的机载测试系统中使用.通过测试可知,设计的有效性和可行性.

Design of the multi type vibration signal acquisition board

In the flight test system,some key parts of the original machine vibration signal bandwidth is high,and the types of testing vibration signal of the acceleration sensor,the back end vibration signal sampling device is often only a single type of sensor,acquisition equipment variety,does not have compatibility.For the above problems,this paper designed a suitable for kinds of vibration of sensor signal,high bandwidth,high precision airborne vibration signal acquisition card.Compared with the traditional single type of sensor signal acquisition card,this article is based on the FPGA to control the vibration of the system design parameter acquisition card with multi-type input signal,sampling rate can be configured,collecting advantages of higher precision,suitable for use in complex airborne testing system.Through the test,the feasibility and the effectiveness of the design.