JPS57162900A - Unidirectional directivity transceiver - Google Patents
Unidirectional directivity transceiverInfo
- Publication number
- JPS57162900A JPS57162900A JP4789181A JP4789181A JPS57162900A JP S57162900 A JPS57162900 A JP S57162900A JP 4789181 A JP4789181 A JP 4789181A JP 4789181 A JP4789181 A JP 4789181A JP S57162900 A JPS57162900 A JP S57162900A
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric oscillator
- transceiver
- metallic housing
- plate
- reflecting 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 230000035945 sensitivity Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
- B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
- B06B1/0674—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface and a low impedance backing, e.g. air
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4789181A JPS6031431B2 (ja) | 1981-03-31 | 1981-03-31 | 単一方向指向性送受波器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4789181A JPS6031431B2 (ja) | 1981-03-31 | 1981-03-31 | 単一方向指向性送受波器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57162900A true JPS57162900A (en) | 1982-10-06 |
JPS6031431B2 JPS6031431B2 (ja) | 1985-07-22 |
Family
ID=12788023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4789181A Expired JPS6031431B2 (ja) | 1981-03-31 | 1981-03-31 | 単一方向指向性送受波器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6031431B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61251399A (ja) * | 1985-04-30 | 1986-11-08 | Oki Electric Ind Co Ltd | 超音波送受波器製造方法 |
-
1981
- 1981-03-31 JP JP4789181A patent/JPS6031431B2/ja not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61251399A (ja) * | 1985-04-30 | 1986-11-08 | Oki Electric Ind Co Ltd | 超音波送受波器製造方法 |
JPH0585000B2 (ja) * | 1985-04-30 | 1993-12-03 | Oki Electric Ind Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6031431B2 (ja) | 1985-07-22 |
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