JPH0246500U - - Google Patents
Info
- Publication number
- JPH0246500U JPH0246500U JP12595288U JP12595288U JPH0246500U JP H0246500 U JPH0246500 U JP H0246500U JP 12595288 U JP12595288 U JP 12595288U JP 12595288 U JP12595288 U JP 12595288U JP H0246500 U JPH0246500 U JP H0246500U
- Authority
- JP
- Japan
- Prior art keywords
- noise
- aircraft noise
- microphones
- aircraft
- pair
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988125952U JP2505964Y2 (ja) | 1988-09-27 | 1988-09-27 | 航空機騒音識別装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988125952U JP2505964Y2 (ja) | 1988-09-27 | 1988-09-27 | 航空機騒音識別装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0246500U true JPH0246500U (lv) | 1990-03-29 |
| JP2505964Y2 JP2505964Y2 (ja) | 1996-08-07 |
Family
ID=31377017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988125952U Expired - Lifetime JP2505964Y2 (ja) | 1988-09-27 | 1988-09-27 | 航空機騒音識別装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505964Y2 (lv) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2722968C1 (ru) * | 2019-08-22 | 2020-06-05 | Акционерное общество "Всероссийский научно-исследовательский институт "Градиент" | Устройство обнаружения акустических активных воздушных объектов |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5816993U (ja) * | 1981-07-23 | 1983-02-02 | 日本ビクター株式会社 | 狭角度指向性マイクロホン装置 |
| JPS595799A (ja) * | 1982-07-01 | 1984-01-12 | Oki Electric Ind Co Ltd | 耐振動マイクロホン |
| JPS61128895U (lv) * | 1985-01-30 | 1986-08-12 |
-
1988
- 1988-09-27 JP JP1988125952U patent/JP2505964Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5816993U (ja) * | 1981-07-23 | 1983-02-02 | 日本ビクター株式会社 | 狭角度指向性マイクロホン装置 |
| JPS595799A (ja) * | 1982-07-01 | 1984-01-12 | Oki Electric Ind Co Ltd | 耐振動マイクロホン |
| JPS61128895U (lv) * | 1985-01-30 | 1986-08-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2505964Y2 (ja) | 1996-08-07 |