Sensor self-test transfer standard

Details Sensor self-test transfer standard Sensor self-test transfer standard

2009-06-08

2011-11-15

Williams, Hezron E (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Speed, velocity, or acceleration

Reexamination Certificate

active

08056389

ABSTRACT:
A system, computer program product and method of obtaining a performance parameter associated with a sensor, such as an accelerometer, is provided. The method includes applying an acceleration to the accelerometer and a first frequency to obtain a sensitivity of the accelerometer at the first frequency. A first self-test is performed on the accelerometer. The first self-test includes stimulating the accelerometer with a first self-test stimulation signal encoded with the first frequency, such that the accelerometer outputs a first signal. A self-test equivalent acceleration is then determined based, at least in part, on the first signal and the accelerometer sensitivity at the first frequency. A second self-test is performed on the accelerometer. The second self-test includes stimulating the accelerometer with a second self-test stimulation signal encoded with the second frequency, such that the accelerometer outputs a second signal. A parameter of the accelerometer is determined at the second frequency based, at least in part, on the second signal and the self-test equivalent acceleration. The parameter may be sensitivity of the accelerometer at the second frequency.

REFERENCES:
patent: 3159037 (1964-12-01), Blitzer
patent: 3720915 (1973-03-01), Hass
patent: 4805456 (1989-02-01), Howe et al.
patent: 4950914 (1990-08-01), Kurihara et al.
patent: 5060054 (1991-10-01), White et al.
patent: 5103667 (1992-04-01), Allen et al.
patent: 5345824 (1994-09-01), Sherman et al.
patent: 5373722 (1994-12-01), Spies et al.
patent: 6101864 (2000-08-01), Abrams et al.
patent: 6308554 (2001-10-01), Mattes et al.
patent: 6512364 (2003-01-01), Okada
patent: 6840106 (2005-01-01), McNeil
patent: 7086270 (2006-08-01), Weinberg et al.
patent: 7543473 (2009-06-01), Samuels
Analog Devices, Inc., Single-Axis, High-g,iMEM® Accelerometers, ADXL78, pp. 1-12, May 2005.
Allen et al.,Micro Electro Mechanical Systems, Proceedings, An Investigation of Micro Structures, Sensors, Actuators, Machines and Robots(Self-Testable Accelerometer Systems), pp. 113-115, Feb. 1989.

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