Design of automatic testing system for sensitivity of MEMS vector hydrophone

Due to the single, heavy and time-consuming testing task and the uncertain errors of manual operation of MEMS vector hydrophone sensitivity testing, this paper uses AD9850, AD8599, PGA205, MK60DN512ZVLQ110 micro-controller chips, to design an auto testing device of MEMS vector hydrophone sensitivity based on the analysis of the testing principle of vector hydrophone sensitivity. This device integrates signal excitation source, weak signal detection, signal conditioning, sampling and transmission module. It shrinks testing instrument, integrates multi module and connects PC to make quick and timely calibration testing of vector hydrophone sensitivity, which not only saves testing time greatly, but also can optimize the hydrophone rapidly. It has the advantages of small size, lightweight and simple testing, which brings convenience to field testing and accelerate engineering application of MEMS vector hydrophone.