Acceleration measurement method using...

Details Acceleration measurement method using... Acceleration measurement method using...

2006-12-19

2006-12-19

Larkin, Daniel S. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

C361S283300

Reexamination Certificate

active

07150192

ABSTRACT:
An acceleration measurement method adapted to an electostatic-capacity-type acceleration sensor comprising a first capacitance detector and a second capacitance detector both of which have moving electrodes and fixed electrodes arranged on a substrate surface so that facing areas therebetween are varied in response to input acceleration, wherein said second capacitance detector sets the facing areas between the moving electrodes and the fixed electrodes to be larger than those of the first capacitance detector when the input acceleration is zero. If first acceleration information representing capacitance variations detected between the moving electrodes and fixed electrodes in the first capacitance detector exceed an upper limit value that is set in advance with respect to the first capacitance detector, it outputs second acceleration information representing capacitance variations detected between the moving electrodes and the fixed electrodes in the second capacitance detector. If not, it outputs the first acceleration information.

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