JPH0210694U - - Google Patents
Info
- Publication number
- JPH0210694U JPH0210694U JP8899588U JP8899588U JPH0210694U JP H0210694 U JPH0210694 U JP H0210694U JP 8899588 U JP8899588 U JP 8899588U JP 8899588 U JP8899588 U JP 8899588U JP H0210694 U JPH0210694 U JP H0210694U
- Authority
- JP
- Japan
- Prior art keywords
- case
- protective cover
- receiving element
- wave receiving
- cylindrical
- 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
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 3
- 238000009413 insulation Methods 0.000 claims 1
- 239000006261 foam material Substances 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
Description
第1図は本考案の水中受波器の構造を示す側断
面図、第2図は本考案の水中受波器に用いられて
いる受波素子を示す側面図、第3図は第2図の受
波素子の平面図、第4図は従来の水中受波器の構
造を示す側断面図、第5図は従来の水中受波器に
用いられている受波素子を示す側面図である。
1……受波素子、2a,2b……圧電子、3…
…スペーサ、5……ケース、6……保持部材、7
……発砲材、8……液体、10……保護カバー、
10a……突条部。
Fig. 1 is a side sectional view showing the structure of the underwater receiver of the present invention, Fig. 2 is a side view showing the receiving element used in the underwater receiver of the present invention, and Fig. 3 is Fig. 2. 4 is a side sectional view showing the structure of a conventional underwater receiver, and FIG. 5 is a side view showing the receiver element used in the conventional underwater receiver. . 1... wave receiving element, 2a, 2b... piezoelectric, 3...
...Spacer, 5...Case, 6...Holding member, 7
...Foam material, 8...Liquid, 10...Protective cover,
10a...Protrusion portion.
Claims (1)
向に連結して成る受波素子を、ゴム等の絶縁性を
有しかつ音響透過性の良い部材により形成された
有底筒状のケース内に収納し、このケース内の空
間に、発泡ゴム材と油等の液体とからなる保持部
材で充填し、前記ケースの開口部を蓋体により密
封することによりケース内を水密状態に形成した
水中受波器において、 音響透過性の良い材質により前記受波素子との
間に空隙が形成される径とした筒状の保護カバー
を形成し、 前記受波素子を保護カバー内に収容して覆い、
かつこの保護カバーを受波素子の中心のみで支持
することを特徴とする水中受波器。[Claims for Utility Model Registration] A wave receiving element consisting of cylindrical piezoelectric elements connected in the axial direction with a spacer in the center is made of a material having insulation properties and good acoustic transparency, such as rubber. The case is housed in a cylindrical case with a closed bottom, the space inside the case is filled with a holding member made of a foamed rubber material and a liquid such as oil, and the opening of the case is sealed with a lid. In the underwater receiver, the inside of which is formed in a watertight state, a cylindrical protective cover is made of a material with good acoustic transparency and has a diameter such that a gap is formed between the wave receiving element and the wave receiving element. housed and covered within a protective cover;
An underwater receiver characterized in that the protective cover is supported only at the center of the receiver element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8899588U JPH0737437Y2 (en) | 1988-07-06 | 1988-07-06 | Underwater receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8899588U JPH0737437Y2 (en) | 1988-07-06 | 1988-07-06 | Underwater receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0210694U true JPH0210694U (en) | 1990-01-23 |
JPH0737437Y2 JPH0737437Y2 (en) | 1995-08-23 |
Family
ID=31313549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8899588U Expired - Lifetime JPH0737437Y2 (en) | 1988-07-06 | 1988-07-06 | Underwater receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0737437Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0520498U (en) * | 1991-08-20 | 1993-03-12 | 日本無線株式会社 | Receiver |
JP2001245381A (en) * | 2000-02-28 | 2001-09-07 | Honda Electronic Co Ltd | Air-gap hydrophone |
-
1988
- 1988-07-06 JP JP8899588U patent/JPH0737437Y2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0520498U (en) * | 1991-08-20 | 1993-03-12 | 日本無線株式会社 | Receiver |
JP2001245381A (en) * | 2000-02-28 | 2001-09-07 | Honda Electronic Co Ltd | Air-gap hydrophone |
JP4639306B2 (en) * | 2000-02-28 | 2011-02-23 | 本多電子株式会社 | Air gap hydrophone |
Also Published As
Publication number | Publication date |
---|---|
JPH0737437Y2 (en) | 1995-08-23 |
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