Micromachined Ultrasound-Based Proximity Sensors: 4 (Microsystems, 4) - Softcover

Hornung, Mark R.; Brand, Oliver

Softcover

ISBN 10: 1461372690 ISBN 13: 9781461372691

Publisher: Springer, 2012

Synopsis

Micromachined Ultrasound-Based Proximity Sensors presents a packaged ultrasound microsystem for object detection and distance metering based on micromachined silicon transducer elements. It describes the characterization, optimization and the long-term stability of silicon membrane resonators as well as appropriate packaging for ultrasound microsystems.
Micromachined Ultrasound-Based Proximity Sensors describes a cost-effective approach to the realization of a micro electro mechanical system (MEMS). The micromachined silicon transducer elements were fabricated using industrial IC technology combined with standard silicon micromachining techniques. Additionally, this approach allows the cointegration of the driving and read-out circuitry. To ensure the industrial applicability of the fabricated transducer elements intensive long-term stability and reliability tests were performed under various environmental conditions such as high temperature and humidity.
Great effort was undertaken to investigate the packaging and housing of the ultrasound system, which mainly determine the success or failure of an industrial microsystem. A low-stress mounting of the transducer element minimizes thermomechanical stress influences. The developed housing not only protects the silicon chip but also improves the acoustic performance of the transducer elements.
The developed ultrasound proximity sensor system can determine object distances up to 10 cm with an accuracy of better than 0.8 mm.
Micromachined Ultrasound-Based Proximity Sensors will be of interest to MEMS researchers as well as those involved in solid-state sensor development.

Edition details

• Publisher: Springer
• Publication date: 2012
• ISBN 10: 1461372690
• ISBN 13: 9781461372691
• Binding: Paperback
• Language: English
• Number of pages: 134