Apparatus for determining the position of a work implement

Details Apparatus for determining the position of a work implement Apparatus for determining the position of a work implement

1997-09-16

1999-03-09

Horabik, Michael

Communications: electrical

Continuously variable indicating

Via radiant energy beam

34087026, 324635, G01R 3332

Patent

active

058806814

ABSTRACT:
An apparatus for determining the position of a work implement relative to an earthworking machine. An antenna is mounted to the machine and is oriented to transmit a high frequency signal toward the implement and receive a reflected signal back from the implement. An oscillator is electrically coupled to the antenna and energizes the antenna with electrical energy to generate the high frequency signal. The oscillator produces an output signal having a frequency responsive to the inductance of the antenna. A microprocessor based circuit receives the output signal of the oscillator and responsively determines the position of the work implement relative to the machine. The position of the work implement is a function of the frequency of the output signal.

REFERENCES:
patent: 4737705 (1988-04-01), Bitar
patent: 4757745 (1988-07-01), Taplin
patent: 5233355 (1993-08-01), Stefano
patent: 5241278 (1993-08-01), Bitar
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patent: 5438261 (1995-08-01), Codina
patent: 5438274 (1995-08-01), Bitar
patent: 5491422 (1996-02-01), Bitar
patent: 5519326 (1996-05-01), Bitar
patent: 5647439 (1997-07-01), Burdick
patent: 5701793 (1997-12-01), Gardner

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