Active Materials

Piezoelectric pump powers liquid cooling
Electronics Talk (press release) - UK
Alps Electric has completed development of a piezoelectric-type pump for liquid cooling of electronic devices that offers long operational life as well as …

Open-door alarm prevents accidental defrosts
EDN.com - Newton,MA,USA
The circuit allows the door to remain open for a software-selectable interval—in this instance, 20 seconds—before activating a piezoelectric buzzer that …

Class G amp drives thin piezoelectric speakers
Eetasia.com (subscription) - USA
One of the main attractions for using ceramic piezoelectric speakers is their thin form factor. But to maintain the advantage of the ceramic speaker, …

ALPS - Piezoelectric-type slim-format liquid cooling pump developed
Electropages (press release) - Poole,Dorset,UK
Using a piezoelectric element, ALPS has succeeded in developing a light and slim pump with a low current drain. It is far less susceptible to tilt, …

Power Generating Spacesuits
Slashdot - USA
Maggie McKee writes “Piezoelectric sensors could help power future space missions. Astronauts’ spacesuits may one day be covered in motion-sensitive …

Class G Piezoelectric Speaker Drivers from Maxim
ECN Asia - Singapore
Maxim Integrated Products has introduced the MAX9788, a mono, Class G amplifier designed to drive the high capacitive load of piezoelectric loudspeakers. …

Handheld windmills serve as electric generators
PhysOrg.com - Evergreen,VA,USA
To convert wind energy into electric energy, they use a piezoelectric structure, where bimorphs (thin plastic sheets) aligned in a row are caused to vibrate …

Piezoelectric Ceramics Materials – Types of Piezoceramics and …
Azom.com - USA
Several types of piezoelectric ceramic materials are available. Each type is tailored towards the requirements of particular applications. …

Mini-windmills eyed for special uses
MSNBC - USA
Piezoelectric ceramics are at the core of the windmills the researchers have made so far. These materials convert mechanical stress into electricity. …

Energy harvesting modules unveiled for wireless sensor nets
CommsDesign - USA
“Energy Harvesting modules provide a crucial link between the source of the energy, such as piezoelectric or thermoelectric materials, and the application. …

Increasing Awareness and Expanding Application Drive Adoption in …
Business Wire (press release) - San Francisco,CA,USA
This research service titled Piezoelectric materials and devices-Global
Technology Developments provides an overview of emerging technologies in
the field …
<http://home.businesswire.com/portal/site/google/index.jsp?ndmViewId=news_view&newsId=20070222005055&newsLang=en>

Piezoelectric Materials for Imaging
Journal of Ultrasound in Medicine (subscription) - USA
The purpose of this article is to present the reader with a brief
description of those characteristics of piezoelectric materials that
directly influence …
<http://www.jultrasoundmed.org/cgi/content/abstract/26/3/283>

From Kyoto with links
Rather than using piezoelectric crystals to convert movement to energy, NASA is using protein found within the inner ear to help turn astronaut’s body movements into energy for their space-suits. This story has been talked about in a …
<http://us18l.ddneo.com/From-Kyoto-with-links/>

BaTiO3, vs oxalate coprecipitation
By wuledlenggoro
Ceramics International, Volume 33, Issue 1 , January 2007, Pages 35-40 doi:10.1016/j.ceramint.2005.07.019 Re-investigation of synthesis of BaTiO3 by conventional solid-state reaction and oxalate coprecipitation route for piezoelectric …
<http://blog.goo.ne.jp/wuledlenggoro/e/c5922ad520617106b7e7e61adbab2c13>

Tourmaline Piezoelectric Composition Rebalancing Electrical …
By Blacksmith(Blacksmith)
A rebalancing device for the electric potential of the cell membrane includes a base support (2), constituted by a epoxy resin including isocyanate and toluol, associated with a piezoelectric mineral composition (3) fit for emitting …
<http://biogenesislab.blogspot.com/2007/02/tourmaline-piezoelectric-composition.html>