Method for the reliable determination of the distance of the con

Details Method for the reliable determination of the distance of the con Method for the reliable determination of the distance of the con

1996-07-11

1998-06-09

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420724, 324232, 324236, 104284, G01B 714, B60L 1306, F16C 3204

Patent

active

057640505

ABSTRACT:
In a method for measuring a distance between a conducting reaction track and a functional surface moving relative to the reaction track a sensor with two signal transmitters is provided on the functional surface. An alternating field is generated in the sensor. The alternating field changes as a function of the distance between the conducting reaction track and the functional surface. Each of the two signal transmitters detects the changes of the alternating field as distance information. Each signal transmitter produces decoupled distance information values. These decoupled distance information values are processed in separate distance measuring channels to provide processed signals. The processed signals are constantly fed to and compared in a comparator. A distance information signal is emitted only when the processed signals of the separate distance measuring channels are identical within a predetermined tolerance range.

REFERENCES:
patent: 4812757 (1989-03-01), Meins et al.

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