Micromachined Ultrasound Based Proximity Sensors formatIsbn:Hardcover 9780792385080 Each has demonstrated in his formatIsbn:Softcover 9789048163663 Each has demonstrated in his or her own way that the ideas on and ideals of European culture and tradition are oflasting value Other lectures and contributed talks were at a more advanced level The developed ultrasound proximity sensor system can determine object distances up to 10 cm with an accuracy of better than 0 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