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A/S Bruel & Kjar Patents |
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Assignee: A/S Bruel & Kjar
Address: Narum, DK
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4777650 |
Dual cavity pressure microphones |
October 11, 1988 |
| A dual cavity pressure microphone comprising a microphone housing and an oscillating element mounted in or on said housing. The oscillating element including a membrane which is in principle only sensitive to a sound field on one side, the second side forming part of a closed cavity in t |
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