A water-pressure sensor is developed.The calibration is carried out by self-made device for reducing the cost.The research result of the dynamic sensitivity calibration indicated that the calibration device could realize the standard impulse pressure signal whose measure range is within 300 MPa

impulse width is less than 12 ms.Within 25 MPa

the uncertainty of the device is lower than 4 %.Through the contrast test

comparing the calibrated sensitivity with the standard sensitivity given by the manufacturer

the relative error is less than 1 %.It shows that the method of sensitivity calibration of the water-pressure sensor by self-made calibration device are feasible and reliable.