Accelerometer calibrator resonance damper and methods

Details Accelerometer calibrator resonance damper and methods Accelerometer calibrator resonance damper and methods

2007-02-02

2010-10-12

Raevis, Robert R (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Speed, velocity, or acceleration

Reexamination Certificate

active

07810370

ABSTRACT:
A calibrator includes a moving element having a structural member having a mounting feature for mounting the device to be calibrated. The moving element includes first and second coils at first and second ends. A fixed element supports the moving element and includes at least one magnet magnetically cooperating with the first and second coils. In at least one mode of operation, an amplifier is coupled to the first and second coils in parallel.

REFERENCES:
patent: 3120622 (1964-02-01), Dranetz et al.
patent: 4542311 (1985-09-01), Newman et al.
B&K Instruments, Inc. brochure entitled “vibration exciter system V”, 1970.
Booth, Bruel & Kjaer brochure entitled “vibration exciter system M”, Mar. 1, 1971.
Metrology 95 Conference paper entitled “The Nist Super Shaker Project”, Oct. 17-19, 1995.

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