Patent ID: 6469498
Filing Date: 2002-10-22
Classification: G01B,G01D

Abstract:
A method for the transmission of useful signals of a magnetostrictive position sensor which is arranged within a housing, including the acts of:generating an electrical current control pulse, transmitting the electrical current control pulse to a pulse generator in order to trigger an ultrasonic current pulse in an ultrasonic exciter circuit of the magnetostrictive position sensor, detecting said ultrasonic pulse and converting the ultrasonic pulse into an electrical reply signal by an ultrasonic pulse detector, and transmitting the reply signal to an evaluation circuit, whereby transmission of useful signals constituted by a plurality of said electrical current control pulses and reply signals between first circuits within the housing and second circuits outside the housing is effected on the supply potential conductor of a two-pole electrical line, the supply voltage being superimposed with a respective useful signal.