Patent ID: 6553839
Filing Date: 2003-04-29
Classification: G01H,G01L,G01N

Abstract:
A method for stimulating a sensor and measuring its output over a frequency range starting at a frequency f1 and ending at a frequency f2, said method comprising the 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 â€œgâ€  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 â€œgâ€  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.