Beat frequency motor position detection scheme for tuning fork g

Details Beat frequency motor position detection scheme for tuning fork g Beat frequency motor position detection scheme for tuning fork g

1995-10-11

1998-05-05

Sircus, Brian

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318648, 7350416, 7350419, G01P 1514

Patent

active

057479615

ABSTRACT:
A tuning fork gyroscope has an in-plane position sensitive pick-off to which an AC or AC+DC bias is applied. Intermodulation is exploited to produce beat-notes between the applied frequency and the motor frequency at amplitudes proportional to motor amplitude, but unaffected by error sources such as spurious substrate charge accumulation. The beat-notes are used to control motor amplitude without the effects of charge accumulation.

REFERENCES:
patent: 4409836 (1983-10-01), Comroe et al.
patent: 4930351 (1990-06-01), Mary et al.
patent: 5205171 (1993-04-01), O'Brien et al.
patent: 5285686 (1994-02-01), Peters
patent: 5461916 (1995-10-01), Fujii et al.
patent: 5481914 (1996-01-01), Ward
patent: 5488863 (1996-02-01), Mochidor et al.
patent: 5533397 (1996-07-01), Sugitani et al.
patent: 5576250 (1996-11-01), Diem et al.
patent: 5581035 (1996-12-01), Greiff
patent: 5600064 (1997-02-01), Ward
patent: 5604309 (1997-02-01), Ward
patent: 5608351 (1997-03-01), Ward

Affiliated with

Also associated with

Rating

Beat frequency motor position detection scheme for tuning fork g does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beat frequency motor position detection scheme for tuning fork g, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beat frequency motor position detection scheme for tuning fork g will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-57926