JPS6435495A - Underwater sound shielding plate - Google Patents
Underwater sound shielding plateInfo
- Publication number
- JPS6435495A JPS6435495A JP62190339A JP19033987A JPS6435495A JP S6435495 A JPS6435495 A JP S6435495A JP 62190339 A JP62190339 A JP 62190339A JP 19033987 A JP19033987 A JP 19033987A JP S6435495 A JPS6435495 A JP S6435495A
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- receiver
- disturbing
- acoustic
- reflection plate
- 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
- 241000251468 Actinopterygii Species 0.000 abstract 1
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
PURPOSE: To cancel acoustic pressure of a direct wave and a reflected wave of a coming acoustic wave to effectively reduce disturning sounds by providing one or more phase inverting reflection plates in the vicinity of a transmitter-receiver approximately in parallel with the coming direction of disturbing sounds. CONSTITUTION: A phase inverting reflection plate A of a prescribed length is provided approximately in parallel with the coming direction of disturbing sounds Q between a transmitter-receiver S of an underwater acoustic device like a soner transmitter- receiver, a fish detector, depth sounder, or a speaking machine and a disturbing sound source B and in the vicinity of the transmitter-receiver S. This reflection plate A is made of a foamed rubber. Since the reflection plate A is provided between the transmitter-receiver S and the disturbing sound source B approximately in parallel with the coming direction of disturbing sounds Q in this manner, one disturbing sound Q from the sound source B reaches the transmitter-receiver S through a direct route P1, and the other is reflected for phase inversion by the phase inverting reflection plate A and reaches the transmitter-receiver S through a route P2, and acoustic pressures are synthesized, and the synthesized acoustic pressure is the sum of acoustic pressures of routes P1 and P2, and the acoustic pressure is reduced by cancelling.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62190339A JP2517845B2 (en) | 1987-07-31 | 1987-07-31 | Underwater sound insulation board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62190339A JP2517845B2 (en) | 1987-07-31 | 1987-07-31 | Underwater sound insulation board |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6435495A true JPS6435495A (en) | 1989-02-06 |
JP2517845B2 JP2517845B2 (en) | 1996-07-24 |
Family
ID=16256550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62190339A Expired - Lifetime JP2517845B2 (en) | 1987-07-31 | 1987-07-31 | Underwater sound insulation board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2517845B2 (en) |
-
1987
- 1987-07-31 JP JP62190339A patent/JP2517845B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2517845B2 (en) | 1996-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
EXPY | Cancellation because of completion of term |