Modular proximity sensor

Details Modular proximity sensor Modular proximity sensor

2006-06-13

2006-06-13

Ledynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

Reexamination Certificate

active

07061234

ABSTRACT:
A preamplifier portion2is arranged between a head portion1containing a detecting coil and an amplifier portion3,wherein a detecting circuit and a controlling circuit and the like are arranged. The preamplifier portion2is connected to the head portion1via a shielded cable5of fixed length, while connected to the amplifier portion3via multi core cables6aand6bhaving connectors7aand7b. In the preamplifier portion2,in addition to an oscillating circuit, an EEPROM containing a compensating table for compensating the relation between the oscillation output of the oscillating circuit and a detected distance is arranged. This EEPROM is connected to the controlling circuit at the side of the amplifier portion3.

REFERENCES:
patent: 3896371 (1975-07-01), Hametta
patent: 4030026 (1977-06-01), Payne
patent: 4130792 (1978-12-01), Sullivan
patent: 4470015 (1984-09-01), Hirschi et al.
patent: 5259780 (1993-11-01), Morrissey et al.
patent: 6482045 (2002-11-01), Arai

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