Abstract: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 backend 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 multitype 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.