JPH028480Y2 - - Google Patents
Info
- Publication number
- JPH028480Y2 JPH028480Y2 JP1983051668U JP5166883U JPH028480Y2 JP H028480 Y2 JPH028480 Y2 JP H028480Y2 JP 1983051668 U JP1983051668 U JP 1983051668U JP 5166883 U JP5166883 U JP 5166883U JP H028480 Y2 JPH028480 Y2 JP H028480Y2
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- acoustic horn
- horn
- ultrasonic
- receiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011358 absorbing material Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5166883U JPS59157382U (ja) | 1983-04-07 | 1983-04-07 | パラメトリツク アレ−マイクロホン |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5166883U JPS59157382U (ja) | 1983-04-07 | 1983-04-07 | パラメトリツク アレ−マイクロホン |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59157382U JPS59157382U (ja) | 1984-10-22 |
| JPH028480Y2 true JPH028480Y2 (sv) | 1990-02-28 |
Family
ID=30182066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5166883U Granted JPS59157382U (ja) | 1983-04-07 | 1983-04-07 | パラメトリツク アレ−マイクロホン |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59157382U (sv) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496122A (sv) * | 1972-03-21 | 1974-01-19 |
-
1983
- 1983-04-07 JP JP5166883U patent/JPS59157382U/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496122A (sv) * | 1972-03-21 | 1974-01-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59157382U (ja) | 1984-10-22 |
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