JPS6475907A - Method for measuring gap between heat transfer pipe and its supporting member - Google Patents
Method for measuring gap between heat transfer pipe and its supporting memberInfo
- Publication number
- JPS6475907A JPS6475907A JP23240887A JP23240887A JPS6475907A JP S6475907 A JPS6475907 A JP S6475907A JP 23240887 A JP23240887 A JP 23240887A JP 23240887 A JP23240887 A JP 23240887A JP S6475907 A JPS6475907 A JP S6475907A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- transfer pipe
- wave
- probe
- ultrasonic wave
- 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
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
PURPOSE:To make it possible to ensure the measurement of a gap even if a heat transfer pipe has a thin wall, by a constitution wherein an ultrasonic wave probe that is inserted into the heat transfer pipe is positioned at a point that is offset from the central axis of the pipe, and an ultrasonic wave is inputted into the inner surface of the heat transfer pipe at an angle at which the ultrasonic wave that is orthogonal to the supporting surface of a supporting member in parallel with the central axis is transmitted. CONSTITUTION:An ultrasonic wave probe 4 is inserted into a heat transfer pipe 7 so that the probe is offset from the central axis of the pipe. When an ultrasonic wave 6 is transmitted from the probe 4, the sound wave 6 is obliquely inputted into the inner surface of the heat transfer pipe 7 owing to the offset position. A reflected wave 6a advances in the different direction from the probe 4. A part 6b of the ultrasonic wave 6 is refracted at the inner surface 7a, propagated through the material of the heat transfer pipe 7 and obliquely inputted into an outer surface 7b. The wave is propagated between the inner and outer surfaces 7a and 7b in a zigzag pattern. The wave is received with the probe 4 and selected. A part 6c of the reflected wave 6b is transmitted through the outer surface 7b, propagated so that the light crosses a supporting surface 8a of a supporting member 8 and undergoes regular reflection at the supporting surface 8a. The wave is propagated along the incident path in the reverse direction and received in the probe 4 as the reflected wave from the member 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23240887A JP2511065B2 (en) | 1987-09-18 | 1987-09-18 | Method for measuring gap between heat transfer tube and its supporting member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23240887A JP2511065B2 (en) | 1987-09-18 | 1987-09-18 | Method for measuring gap between heat transfer tube and its supporting member |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6475907A true JPS6475907A (en) | 1989-03-22 |
JP2511065B2 JP2511065B2 (en) | 1996-06-26 |
Family
ID=16938778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23240887A Expired - Lifetime JP2511065B2 (en) | 1987-09-18 | 1987-09-18 | Method for measuring gap between heat transfer tube and its supporting member |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2511065B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012021930A (en) * | 2010-07-16 | 2012-02-02 | Chubu Electric Power Co Inc | Thickness measuring method |
JP2014048183A (en) * | 2012-08-31 | 2014-03-17 | Mitsubishi Heavy Ind Ltd | Gap measuring device, method, and program |
-
1987
- 1987-09-18 JP JP23240887A patent/JP2511065B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012021930A (en) * | 2010-07-16 | 2012-02-02 | Chubu Electric Power Co Inc | Thickness measuring method |
JP2014048183A (en) * | 2012-08-31 | 2014-03-17 | Mitsubishi Heavy Ind Ltd | Gap measuring device, method, and program |
Also Published As
Publication number | Publication date |
---|---|
JP2511065B2 (en) | 1996-06-26 |
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