JPS5578207A - Ultrasonic thickness meter - Google Patents
Ultrasonic thickness meterInfo
- Publication number
- JPS5578207A JPS5578207A JP15098878A JP15098878A JPS5578207A JP S5578207 A JPS5578207 A JP S5578207A JP 15098878 A JP15098878 A JP 15098878A JP 15098878 A JP15098878 A JP 15098878A JP S5578207 A JPS5578207 A JP S5578207A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detect
- failure
- converter
- pulse width
- 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
Abstract
PURPOSE: To increase the resolution between reception echoes, by detecting abnormal phenomena depending on the failure present under the surface of measured object individually to detect the presence of failures within fine distance under the surface.
CONSTITUTION: The reflection echo of ultrasonic pulses reciprocating the front and rear surface of measured object 10 is picked up with the probe 14, the circuit 18 forms analog signal corresponding to the thickness from the time required for reciprocation of pulses and the signal is fed to the A/D converter 20 and the surface reflection wave detection circuit 26. Further, abnormal thickness is detected with the converter 20 and comparison circuit 22 to detect the presence of failure, and the greater pulse width than the specified value for the surface reflection echo can be detected with the circit 26, pulse width comparison circuit 28, and memory circuit 30. Each detection output operates the alarm circuit 34 via the OR circuit 32 to detect and display the failure 12 beneath the surface.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15098878A JPS5578207A (en) | 1978-12-08 | 1978-12-08 | Ultrasonic thickness meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15098878A JPS5578207A (en) | 1978-12-08 | 1978-12-08 | Ultrasonic thickness meter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5578207A true JPS5578207A (en) | 1980-06-12 |
JPS62441B2 JPS62441B2 (en) | 1987-01-08 |
Family
ID=15508821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15098878A Granted JPS5578207A (en) | 1978-12-08 | 1978-12-08 | Ultrasonic thickness meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5578207A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6433655U (en) * | 1987-08-17 | 1989-03-02 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10744658B2 (en) | 2014-03-04 | 2020-08-18 | Ge-Hitachi Nuclear Energy Americas Llc | Nuclear reactor light-based fuel alignment systems and methods |
-
1978
- 1978-12-08 JP JP15098878A patent/JPS5578207A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6433655U (en) * | 1987-08-17 | 1989-03-02 |
Also Published As
Publication number | Publication date |
---|---|
JPS62441B2 (en) | 1987-01-08 |
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