Design of the digital Hull integrated thickness sensor

The structure,principle of the digital Hull integrated thickness sensor mainly used for measuring non magnetic coat thickness on the surface of iron magnet material and the design way of the single chip microcomputer control system are introduced.The measure system used Hull component and U shaped permanent magnet to form the sensor for measuing thickness.The control core of the data collection,processing and display is a microcomputer.The measure system has the merits of the little measure contact area,quick measure speed,high measure precision,data display and automatic error compensation.