Aiming at measurement requirements of wide measurement range and high measuring accuracy for angular velocity of high-speed rotating projectile in the research field of arms and ammunitions at present

a method for measuring angular velocity parameter based on the electromagnetic induction principle is proposed

and corresponding sensor is designed as well. Utilize FPGA as control core to build the frequency tracking measurement model for angular velocity to realize the measurement of angular velocity parameter of projectile

and eliminate accumulative error during the measurement by using the way of periodically pulse clear. Experimental results show that the proposed measurement method can realize measurement of angular velocity within an extremely large dynamic ran

ge of 1

100 rps

and measurement error is less than 0. 3 %

thus

satisfy measurement requirements of large rotational speed and high precision for high-speed rotating projectile

and has definite value for engineering application in the fields of attitude determination and spatial navigation

etc.