Method for stimulating a sensor and measuring the sensor's output over a frequency range
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United States of America Patent
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Apr 29, 2003
Grant Date -
Oct 10, 2002
app pub date -
Jun 20, 2002
filing date -
Aug 11, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for stimulating a sensor and measuring it's output over a frequency ranges starting at a frequency f1 and ending at a frequency f2 is disclosed, which can include the following steps: (a) placing an assembled sensor on a shaker table; (b) setting the shaker table at a specified frequency and exciting the sensor by moving the sensor up and down at an amplitude at least approximately equal to a reference 'g' level of acceleration; (c) measuring the sensor's output and recording the measured output as a first value; (d) incrementally changing an excitation frequency of the shaker table and adjusting the amplitude to achieve the reference 'g' level; (e) measuring the sensor's output and recording the measured output as a second value; and (f) repeating steps (d) and (e) for one or more discrete frequencies within the frequency range to provide a frequency response curve for the sensor over the frequency range.
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