Energy Harvesting - generation of energy using piezoceramic

Redwitz – Energy Harvesting by means of piezoelectric technology is the main focus of Johnson Matthey Piezoproducts’ presence at this year’s SENSOR + TEST trade fair. Energy Harvesting is the term given to the method of winning electrical energy from the environment, as a result of which an external power supply is no longer required for wireless data transmission.

The generation of energy by means of piezoceramic is employed for example in the field of self-sufficient radio systems. These include battery-free wireless switches for control functions as well as the energy supply to radio transmitters of tire pressure sensors. In low power technology there are also applications of battery-free power supply of sensors to be found in the field of automation technology.

Energy Harvesting by way of the piezoelectric effect means that a mechanical deformation of the piezoceramic part or of the piezoceramic module is used to generate energy. The simplest case is when a piezoceramic disc is pressed or pulled in the direction of its thickness by a mechanical impulse. In other cases bending elements or torsion elements can also be deformed. Electrical energy is won as charges build up at the piezoceramic surface due to distortions of the lattice structure. In order to achieve a maximum generation of energy, it must made sure that the mechanical stresses which arise during mechanical deformation of  the piezoceramic part or piezoceramic module are all in the same direction. If this is so, the resulting electrical charges will also be of the same polarity.

„The SENSOR+TEST trade fair is an ideal forum to present our products for Energy Harvesting applications to the international visitors“, as Udo Zipfel, Head of Supply Management and Sales at Johnson Matthey Piezoproducts, comments. The company is exhibitor at the world’s leading trade fair for sensors, measurement and test technology for the fifth time already. It offers a unique chance of learning about innovations and interesting products in other fields according to Mr. Zipfel. „Professional exchange of information on an international level is reflected in the development of our own customized innovations“. This often constitutes the beginning of a long-term and good cooperation with the customer.

Alongside its products relating to Energy Harvesting, Johnson Matthey Piezoproducts is also presenting its complete product range for actuator and sensor applications as well as piezoelectric generators and atomizers.


For further information please contact:


Udo Zipfel
Head of Supply Management and Sales

Johnson Matthey Catalysts (Germany) GmbH
Bahnhofstr. 43
96257 Redwitz
Fon + 49 9574 81-466
Fax + 49 9574 81-98-466
mail: udo.zipfel(at)matthey.com
web: www.piezoproducts.com



Johnson Matthey Piezoproducts

Johnson Matthey’s Piezoproducts Division has been developing and producing piezoceramic parts, piezoceramic modules and complete systems with mechanical and electronic components for more than 30 years and sells them worldwide. Every piezo bending actuator and every system is developed, projected and realized in a customer-oriented way. The piezo products from Redwitz are employed in vehicles and in medical applications and are used as needle control modules in textile machines and as piezo atomizers for inhalation therapy. The company is world leader for textile piezo systems and for piezo bending actuators for pneumatic valves and Braille.

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