Check out APC International's feature article:
Using PIA Devices in Impact and Acceleration Testing
found in the December issue of Ceramic Industry Magazine
 | | Cover of the December 2010 Edition |
Standard piezoelectric-driven ceramic stack actuator products are typically meant for positioning tasks and are characterized by limited operating parameters both in terms of power and acceleration, when compared with a piezo stack designed for use in a piezo impactor/accelerator (PIA) device. Standard actuators can be used to generate a mechanical shock, although the amplitudes and energy levels of the shocks will be much lower than those of PIAs. PIA devices can be used in acceleration or impact experiments and offer some benefits over other traditional testing systems. For example, a PIA device can produce a rapid steep pulse (an almost square wave) rather than the oscillation offered by shaking systems. In addition, a PIA system's maximum accelerations and largest magnitude pulse powers can be realized independently of the repetition rate. For the complete article, click here or on the magazine cover to the right. (pages 26 and 27)
Other Articles and Resources
PZT Powder article in the May 2010 Issue of CI
First Steps Towards Piezoaction Ebook Download
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 Updated List: PMN-PT Clearance selection!!
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Piezo-Pyro-Shock Simulator
The ignition of a pyro charge is used in launchers and spacecraft to separate structural subsystems or in ammunitions in a destructive way. It crucial to know the reaction of mechanical structures experiencing such impacts with regard to potential damages and functional failures. Careful testing of mechanical, electronic or optical components with respect to high g - transient excitation is therefore a must. With the increasing degree of miniaturization, with its specific high frequency eigenmodes, the need for high frequency containing transient excitation of structures became important. Custom designed elements are required in such systems and systems in use at this time are used for research and development purposes.
Benefits of Piezo Shockers  - High g-rates
- High reproducibility of pulse shape
- High repetition rates
- High power shaker operation when using a harmonic inputsignal
- Variable shock-response-spectrum by using other beam shapes or changing the position of the shock generator
Contact an APCI Representative
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Upcoming Events
 Electronic Materials and Applications 2011 When: January 19-21, 2011
 40th Annual Ultrasonic Industry Association Symposium
When: May 23-25, 2011Where: Glasgow, Scotland, UK
This workshop provides a forum for the discussion of state-of-the-art materials and devices to generate, detect and suppress sound. Papers will be presented and commercial firms may also display and/or present products. A copy of the call for papers will be posted in on the UIA website later in 2010 - keep an eye out for updates!
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