Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Reexamination Certificate
2006-09-19
2009-06-30
Kwok, Helen C. (Department: 2856)
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
Reexamination Certificate
active
07552637
ABSTRACT:
A torque driver that includes a regulator circuit for mitigating zero-g discontinuity effects and deadbanding is presented. An accelerometer may comprise the torque driver and the torque driver may be arranged to receive a control signal from a control circuit that is coupled to deflection sensing circuitry. When the accelerometer undergoes an acceleration the deflection sensing circuitry generates an acceleration signal that is communicated to the control circuit. The control circuit responsively generates a control signal, which the torque driver users to balance a proof mass beam within the accelerometer. The regulator circuit mitigates zero-g discontinuity effects and deadbanding by preventing the torque signal from producing torque signals that simultaneously track the control signal. To do this, the regulator circuit may include a rectifying buffer and/or a modulator.
REFERENCES:
patent: 3877313 (1975-04-01), Ferriss
patent: 4009607 (1977-03-01), Ficken
patent: 4094199 (1978-06-01), Holdren et al.
patent: 4102202 (1978-07-01), Ferriss
patent: 4336718 (1982-06-01), Washburn
patent: 4345474 (1982-08-01), Deval
patent: 4459849 (1984-07-01), Calamera
patent: 4799386 (1989-01-01), Bernard et al.
patent: 5142921 (1992-09-01), Stewart et al.
patent: 5235330 (1993-08-01), Sewell
patent: 6360602 (2002-03-01), Tazartes et al.
Boxenhorn, Burton and Greiff Paul, “An Electrostatically Rebalanced Micromechanical Accelerometer,” AIAA Guidance, Navigation and Control Conference, Aug. 14-16, 1989, Boston Massachusetts, American Institute of Aeronautics and Astranautics, Inc., 1989, pp. 117-122.
Boxenhorn, Burton and Greiff Paul, “Monolithic Silicon Accelerometer,” The Charles Stark Draper Laboratory, Cambridge, Massachusetts, Elsevier Sequoia, pp. 273-275.
Boxenhorn, Burton and Greiff Paul, “Monolithic Silicon Accelerometer,” The Charles Stark Draper Laboratory, Cambridge, Massachusetts, Elsevier Sequoia, pp. 273-275, 1990.
Coughlin R F; Driscoll F F: “Operational amplifiers and linear integrated circuits”, Book, 1987, Prentice-Hall, Engelwood Cliffs, NJ, US, XP002518190 *pp. 167-172* .
Honeywell International , Inc.
Kwok Helen C.
McDonnell Boehnen & Hulbert & Berghoff LLP
LandOfFree
Torque driving circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Torque driving circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque driving circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4086404