JPS5569049A - Ultrasonic flaw inspection unit - Google Patents
Ultrasonic flaw inspection unitInfo
- Publication number
- JPS5569049A JPS5569049A JP14289078A JP14289078A JPS5569049A JP S5569049 A JPS5569049 A JP S5569049A JP 14289078 A JP14289078 A JP 14289078A JP 14289078 A JP14289078 A JP 14289078A JP S5569049 A JPS5569049 A JP S5569049A
- Authority
- JP
- Japan
- Prior art keywords
- pulses
- rising
- amplifier
- amplitude
- echo
- 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 display digital values of the position and size of a defect automatically, by detecting the rising and amplitude of a defective echo pulse by providing 1st and 2nd differentiation circuit and a saturating amplifier.
CONSTITUTION: Pulses from pulse generator T are applied to probe P, echo pulses from which are sent to timing circuit B and video amplifier A1. Then, signals from amplifier A1 are supplied to 1st differentiation circuit D1 through gate G2 and then to saturating amplifier A2 and 2nd differentiation circuit D2 in sequence; odd- numbered positive pulses are generated at rising points of echo pulses, and even- numbered negative pulses at maximum points. Through switch K and memory M, the time until rising points is displayed digitally by display unit V, and a value equivalent to amplitude by display unit W. Consequently, the rising point and amplitude of a defective echo pulse can automatically be detected and accurate measurement is realized.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14289078A JPS5569049A (en) | 1978-11-21 | 1978-11-21 | Ultrasonic flaw inspection unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14289078A JPS5569049A (en) | 1978-11-21 | 1978-11-21 | Ultrasonic flaw inspection unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5569049A true JPS5569049A (en) | 1980-05-24 |
JPS627979B2 JPS627979B2 (en) | 1987-02-20 |
Family
ID=15325963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14289078A Granted JPS5569049A (en) | 1978-11-21 | 1978-11-21 | Ultrasonic flaw inspection unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5569049A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0248017U (en) * | 1988-09-22 | 1990-04-03 |
-
1978
- 1978-11-21 JP JP14289078A patent/JPS5569049A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS627979B2 (en) | 1987-02-20 |
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