JPS57186107A - Ultrasonic penetration device - Google Patents
Ultrasonic penetration deviceInfo
- Publication number
- JPS57186107A JPS57186107A JP56071019A JP7101981A JPS57186107A JP S57186107 A JPS57186107 A JP S57186107A JP 56071019 A JP56071019 A JP 56071019A JP 7101981 A JP7101981 A JP 7101981A JP S57186107 A JPS57186107 A JP S57186107A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- transducer
- signal
- wave
- reflecting
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
PURPOSE:To detect an obstacle precisely by an ultrasonic obstable penetration device in a nuclear reactor containment, by using a reflector which has small staircase-shaped reflecting surfaces differing in distance from an ultrasonic transmitter and reciever, and discriminating signals from the respective small reflecting surfaces. CONSTITUTION:An ultrasonic transducer 8 sends an ultrasonic wave in a direction specified by a transmitted-and-received-wave angle controller 10. A reflected wave from a reflecting element 11 enters the transducer 8 again and then enters an echo signal selection part 24 through an ultrasonic wave transmission and reception part. The reflecting surfaces of relfecting elements 11A-11C are each divided in a staircase shape and differ in distance from the transducer 8, so the received time of the reflected wave depends upon the reflecting surface. On the basis of the time S2 of reflection from a prescribed reflecting surface read out of a storage part 22 in accordance with an angle signal S0 from the controller 10, only a signal from the prescribed reflecting surface among reflected signals S32 is selected by a slection part 24 and the existence of an obstacle is detected by the presence of the signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56071019A JPS57186107A (en) | 1981-05-12 | 1981-05-12 | Ultrasonic penetration device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56071019A JPS57186107A (en) | 1981-05-12 | 1981-05-12 | Ultrasonic penetration device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57186107A true JPS57186107A (en) | 1982-11-16 |
Family
ID=13448381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56071019A Pending JPS57186107A (en) | 1981-05-12 | 1981-05-12 | Ultrasonic penetration device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57186107A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59180415A (en) * | 1983-03-31 | 1984-10-13 | Toshiba Corp | Ultrasonic-wave observing apparatus |
FR2690737A1 (en) * | 1992-04-30 | 1993-11-05 | Takenaka Corp | Method and apparatus for three-dimensional measurement of a surface |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6145167A (en) * | 1984-08-09 | 1986-03-05 | Toyota Motor Corp | Hydraulic control device of automatic speed change gear |
-
1981
- 1981-05-12 JP JP56071019A patent/JPS57186107A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6145167A (en) * | 1984-08-09 | 1986-03-05 | Toyota Motor Corp | Hydraulic control device of automatic speed change gear |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59180415A (en) * | 1983-03-31 | 1984-10-13 | Toshiba Corp | Ultrasonic-wave observing apparatus |
JPH0121441B2 (en) * | 1983-03-31 | 1989-04-21 | Tokyo Shibaura Electric Co | |
FR2690737A1 (en) * | 1992-04-30 | 1993-11-05 | Takenaka Corp | Method and apparatus for three-dimensional measurement of a surface |
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