JPS5552909A - Dislocation detector - Google Patents
Dislocation detectorInfo
- Publication number
- JPS5552909A JPS5552909A JP12697178A JP12697178A JPS5552909A JP S5552909 A JPS5552909 A JP S5552909A JP 12697178 A JP12697178 A JP 12697178A JP 12697178 A JP12697178 A JP 12697178A JP S5552909 A JPS5552909 A JP S5552909A
- Authority
- JP
- Japan
- Prior art keywords
- line
- strain
- detected
- amplifier
- waves
- 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
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE: To accomplish the highly accurate measurements with the use of a simple construction by generating standing waves within a magnetic strain line so that the strain distribution may be detected.
CONSTITUTION: A magnetic strain line 1, which is made of a line-shaped magnetic strain material, is equipped at its both ends with a driving means 2 such as a coil or a piezomagnetic element and receiving means 3. These two means 2 and 3 are connected through a band-pass filter 4 and an amplifier 5, and detecting means 6 is made movable along the line 1. Thus, if a start signal is fed to the amplifier 5 so that driving signals are fed to the driving means 2, ultrasonic relay waves are generated at one end of the line 1 are transmitted to the other end. The waves are detected by the receiving means 3 and positively fed back to the amplifier 5. Then, the detecting means 6 is moved along the line 1 in accordance with the mechanical strain to be detected, and the frequency distribution of the strain in the line is detected by the reverse magnetic strain effect. Thus, the position is located by counting the output pulse siganls from the detecting means 6.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12697178A JPS5936209B2 (en) | 1978-10-16 | 1978-10-16 | Displacement position detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12697178A JPS5936209B2 (en) | 1978-10-16 | 1978-10-16 | Displacement position detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5552909A true JPS5552909A (en) | 1980-04-17 |
| JPS5936209B2 JPS5936209B2 (en) | 1984-09-03 |
Family
ID=14948417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12697178A Expired JPS5936209B2 (en) | 1978-10-16 | 1978-10-16 | Displacement position detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5936209B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007057396A (en) * | 2005-08-24 | 2007-03-08 | Iwate Univ | Magnetostriction measuring method by method of elastic standing wave, and stress inspection method using method |
| CN103206913A (en) * | 2013-04-24 | 2013-07-17 | 四川大学 | Signal receiving circuit of Fe83Ga17 magnetostrictive displacement sensor |
-
1978
- 1978-10-16 JP JP12697178A patent/JPS5936209B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007057396A (en) * | 2005-08-24 | 2007-03-08 | Iwate Univ | Magnetostriction measuring method by method of elastic standing wave, and stress inspection method using method |
| JP4552013B2 (en) * | 2005-08-24 | 2010-09-29 | 国立大学法人岩手大学 | Magnetostriction distribution measuring method by elastic wave standing wave method and stress inspection method using the method |
| CN103206913A (en) * | 2013-04-24 | 2013-07-17 | 四川大学 | Signal receiving circuit of Fe83Ga17 magnetostrictive displacement sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5936209B2 (en) | 1984-09-03 |
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