Electricity: measuring and testing – Magnetic – Displacement
Patent
1990-04-12
1992-04-21
Wieder, Kenneth A.
Electricity: measuring and testing
Magnetic
Displacement
32420725, G01B 730
Patent
active
051072114
ABSTRACT:
An inductive transducer for measuring rotary displacement is provided in which the transducer uses a probe capable of being displaced within a hollow interior portion of a partially toroidal coil. The partially toroidal coil, which is typically uniformally wound, is connected in parallel with a stable-frequency current-based oscillator which transmits an AC voltage oscillating signal relating to the inductance of the coil. A demodulating circuit, which is capable of converting the AC voltage oscillating signal to a DC voltage level, is connected in parallel with the oscillator. In one preferred embodiment, the probe is inserted into the hollow interior portion of the partially toroidal coil by way of a pivoting arrangement. In operation, the probe is displaced within the hollow interior portion of the coil such that a change in inductance of the coil results. A corresponding change in the AC voltage amplitude of the oscuillating signal is communicated to the demodulating circuit which generates a change in DC voltage level relating to the change in the oscillating signal.
REFERENCES:
patent: 3502966 (1970-03-01), Perets et al.
patent: 3513408 (1970-05-01), McGee
patent: 3756081 (1973-09-01), Young
patent: 3900814 (1975-08-01), Masuda
patent: 3961243 (1976-06-01), Schulz
patent: 3991393 (1976-11-01), Becker, Jr.
patent: 4203085 (1980-05-01), Elsasser et al.
patent: 4502006 (1985-02-01), Goodwin et al.
patent: 4536714 (1985-08-01), Clark
patent: 4627280 (1986-12-01), Hayashi et al.
patent: 4649341 (1987-03-01), Ulbrich et al.
patent: 4652819 (1987-03-01), Kammerer
patent: 4667158 (1987-05-01), Redlich
patent: 4950985 (1990-08-01), Voss et al.
Edmonds Warren S.
Wieder Kenneth A.
LandOfFree
Transducer for measuring rotary displacement of an object does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transducer for measuring rotary displacement of an object, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transducer for measuring rotary displacement of an object will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1589850