| 发明名称 |
Piezo-electric sound transducer |
| 摘要 |
A sound transducer includes a piezo element for radiating and/or receiving sound waves, and a chemically resistant layer which consists of polyvinyldifluoride, and micro-hollow spheres in a connecting material. The micro hollow spheres pref. consist of glass spheres, esp. boron silicate glass spheres.
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| 申请公布号 |
DE4325398(C1) |
申请公布日期 |
1994.07.21 |
| 申请号 |
DE19934325398 |
申请日期 |
1993.07.29 |
| 申请人 |
VEGA GRIESHABER KG, 77709 WOLFACH |
发明人 |
HAMANN, VOLKER, DIPL.-PHYS. DR., 77716 FISCHERBACH;BYRNE, TERENCE, 24159 KIEL |
| 分类号 |
G01F23/296;H04R17/00;(IPC1-7):H04R17/00;G01F23/28;H04R31/00 |
主分类号 |
G01F23/296 |
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