Inductive displacement sensor with a measuring head...

Details Inductive displacement sensor with a measuring head... Inductive displacement sensor with a measuring head...

2005-09-13

2005-09-13

Ledynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207180, C324S207240, C324S207250

Reexamination Certificate

active

06943543

ABSTRACT:
An inductive displacement sensor having a displaceable or rotatable, magnetically permeable measuring head, at least one measuring loop whose geometric shape varies in response to the longitudinal/rotary displacement of the measuring head, and at least one excitation loop by which a magnetic flux can be generated in the measuring head. The flux penetrates the at least one measuring loop at any point of the longitudinal/rotary displacement, essentially in the region of the measuring head, and inducing an electric measuring signal (i2). A resonant circuit, which is electrically decoupled from the outside, is arranged on the measuring head and is excited in correct phase relation by a short voltage pulse after a number of, preferably, 10 to 20 free oscillations.

REFERENCES:
patent: 5939879 (1999-08-01), Wingate et al.
patent: 6504361 (2003-01-01), Gleixner
patent: 100 16 540 (2001-07-01), None
patent: 26 82 760 (1993-04-01), None

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