Method and Apparatus for Determining Linear and Angular Velocity of a Moving Body
Patent Application, Filed 11 Apr 2000
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
An apparatus and method for determining linear and angular velocity of a moving body. A magnet is attached or fixed to the body, the velocity of which is to be determined. The apparatus comprises a sensor comprising a core of magnetic material and a coil wound about the core. The movement of the body and magnet relative to the core effects a time-varying magnetic field between the magnet and the core thereby producing Barkhausen effect time-varying voltage signals in the coil. The apparatus further comprises a system for detecting and processing the time-varying voltage signals so as to effect a transformation of the signals into data defining the velocity of the moving body.
- Electrical and Electronic Equipment
- Electricity and Magnetism