JPH0116391B2 - - Google Patents
Info
- Publication number
- JPH0116391B2 JPH0116391B2 JP449182A JP449182A JPH0116391B2 JP H0116391 B2 JPH0116391 B2 JP H0116391B2 JP 449182 A JP449182 A JP 449182A JP 449182 A JP449182 A JP 449182A JP H0116391 B2 JPH0116391 B2 JP H0116391B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- annular
- radius
- transducer
- frequency
- 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
Classifications
- 
        - G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/521—Constructional features
 
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| JP57004491A JPS58122478A (ja) | 1982-01-14 | 1982-01-14 | 水中探知用パラメトリツク超音波送受波器 | 
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| JP57004491A JPS58122478A (ja) | 1982-01-14 | 1982-01-14 | 水中探知用パラメトリツク超音波送受波器 | 
Publications (2)
| Publication Number | Publication Date | 
|---|---|
| JPS58122478A JPS58122478A (ja) | 1983-07-21 | 
| JPH0116391B2 true JPH0116391B2 (en:Method) | 1989-03-24 | 
Family
ID=11585550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| JP57004491A Granted JPS58122478A (ja) | 1982-01-14 | 1982-01-14 | 水中探知用パラメトリツク超音波送受波器 | 
Country Status (1)
| Country | Link | 
|---|---|
| JP (1) | JPS58122478A (en:Method) | 
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JPS61144582A (ja) * | 1984-12-18 | 1986-07-02 | Satoru Tabata | 多周波数超音波送受波器 | 
| JPS62271600A (ja) * | 1986-05-19 | 1987-11-25 | Agency Of Ind Science & Technol | 圧電型指向性音波発生装置 | 
| JPH0413676Y2 (en:Method) * | 1986-08-27 | 1992-03-30 | ||
| JP5275565B2 (ja) * | 2004-06-07 | 2013-08-28 | オリンパス株式会社 | 静電容量型超音波トランスデューサ | 
| KR100781467B1 (ko) * | 2006-07-13 | 2007-12-03 | 학교법인 포항공과대학교 | 공기중 파라메트릭 트랜스미팅 어레이를 이용한 초지향성초음파 거리측정을 위한 멤스 기반의 다공진 초음파트랜스듀서 | 
| CN112904345B (zh) * | 2021-01-19 | 2023-03-31 | 鹏城实验室 | 定位系统及定位方法 | 
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JPS5634321B2 (en:Method) * | 1973-11-16 | 1981-08-10 | 
- 
        1982
        - 1982-01-14 JP JP57004491A patent/JPS58122478A/ja active Granted
 
Also Published As
| Publication number | Publication date | 
|---|---|
| JPS58122478A (ja) | 1983-07-21 | 
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