MAGNETOSTRICTIVE POSITION MEASURING METHOD AND SYSTEM FOR...

Details MAGNETOSTRICTIVE POSITION MEASURING METHOD AND SYSTEM FOR... MAGNETOSTRICTIVE POSITION MEASURING METHOD AND SYSTEM FOR...

2005-06-14

2005-06-14

Patidar, Jay (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207120

Reexamination Certificate

active

06906512

ABSTRACT:
A magnetostrictive position measuring system is provided with a waveguide and which is allocated with a magnet movable along the waveguide. An impulse generator for generating an excitation pulse and a conductive wire for guiding the excitation pulse through the waveguide to the magnet are provided, whereby a torsion wave arises in the waveguide when the excitation pulse reaches the magnet. A reel for generating a reply pulse as a function of the torsion wave and a position calculation unit for ascertaining the position of the magnet as a function of the excitation pulse and the reply pulse are provided. A processor is provided in which a table is present in which a large number of positions and excitation pulse correction values are allocated to one another. The duration of the next excitation pulse is altered as a function of the position of the magnet ascertained and the associated excitation pulse correction value from the table.

REFERENCES:
patent: 5923164 (1999-07-01), Ehling et al.
patent: 6351117 (2002-02-01), Ehling
patent: 19954328 (2002-02-01), None

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