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TUTORIAL Introduction to Piezoelectric Sensors

TUTORIAL Introduction to Piezoelectric Sensors

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Other Piezoelectric Devices• Today’s discussion will focus primarily onpiezoelectric type accelerometers but we use thesame principles to measure dynamic force andpressureDytran Instruments, Inc. 18

Dynamic vs. Static MeasurementDynamic Measurement• The physical quantity (i.e.acceleration, force,pressure) is rapidlychanging over time• Examples of dynamic events‒ Vibration of rotating machinery‒ Pressure in a reciprocatingengine‒ Force input to a structure via ashake tableStatic Measurement• The physical quantity beingmeasured does not changeas a function of time (orchanges very slowly)• Examples of staticmeasurements‒ Force measurement in abathroom scale‒ Constant acceleration due togravityDytran Instruments, Inc. 19

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