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]) | 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]) |
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]) * | 1986-08-27 | 1992-03-30 | ||
EP1779784B1 (en) * | 2004-06-07 | 2015-10-14 | Olympus Corporation | Electrostatic capacity type ultrasonic transducer |
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]) * | 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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