Detector

Details Detector Detector

2011-05-17

2011-05-17

Dole, Timothy J (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C341S032000, C336S08400R, C336S079000, C336S232000, C345S174000

Reexamination Certificate

active

07944215

ABSTRACT:
A device for measuring the position of a first body relative to a second body comprising: a first body which further comprises an electrical intermediate device; a second body which further comprises at least two inductors energised with an alternating current and at least one of which is formed by a planar spiral winding on a printed circuit board normal to the measurement axis and attached to the second body; arranged such that displacement of the electrical intermediate device causes a change in inductance of the planar spiral winding and whereby measurement of the ratio of the inductances indicates the position of the first body relative to the second.

REFERENCES:
patent: 4109630 (1978-08-01), Richeson et al.
patent: 4253079 (1981-02-01), Brosh
patent: 4494109 (1985-01-01), Bernin
patent: 5675359 (1997-10-01), Anderson
patent: 2003/0063427 (2003-04-01), Kunihiro
patent: 2003/0221946 (2003-12-01), Kikuchi
patent: 2004/0031908 (2004-02-01), Neveux et al.
patent: 1422492 (2004-05-01), None
patent: 2071334 (1981-09-01), None

Affiliated with

Also associated with

Rating

Detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2644990