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piezoelectric - Drexel University Goodwin College of...

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Drexel University Goodwin College of Professional Studies Applied Engineering Technology MET 101 Manufacturing Material Laboratory Experiment No. 5 Submitted by Mike Coover Submitted to Dr. Richard Y Chiou Date: March 19, 2007
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Purpose: The purpose of this experiment is to understand: - the mechanical and electrical properties of piezo-electric ceramics material - the applications of piezo-electric ceramics material in manufacturing - the methods of measuring acceleration by a piezo-electric accelerometer - the methods of measuring force by piezo-electric force sensor - the measurement and sensitivity of a force sensor - the measurement and sensitivity of a polymer piezo-electric plate - the methods of operating a piezo-electric actuator for mirco and nano position control Description/Data: We often encounter piezo-electric effects on a daily basis. A small butane cigarette or gas grill lighters are two similar examples. In these two cases, a lever applies pressure to a piezo-electric ceramic, creating an electrical field strong enough to produce a spark which ignites the gas. Another example of piezo-electric is an alarm clock. When AC voltage is applied, the piezo-electric material inside the clock moves at the frequency of the applied voltage. The result is a sound loud enough to wake the heaviest of all sleepers.
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