Laser Focus World

Semiconductors, medical equipment, lasers, optics and aviation and aerospace.

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

Machine Design

How-to, in-depth technical articles for machine design engineers

Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

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Applications
Applications where strongly-piezoelectric materials are used include buzzers inside pagers and cell phones, shakers inside ultrasonic cleaners, spark generators inside electronic igniters, and strain sensors inside pressure gages.

Piezoelectric materials also make inexpensive but fantastically accurate "clocks". For example, the element keeping track of time inside a quartz watch is literally a small piece of vibrating quartz. Its vibration period is stable to more than one part per million as a result of its piezoelectic properties.