JPS5663252A - Distance amplitude correcting device - Google Patents
Distance amplitude correcting deviceInfo
- Publication number
- JPS5663252A JPS5663252A JP13876579A JP13876579A JPS5663252A JP S5663252 A JPS5663252 A JP S5663252A JP 13876579 A JP13876579 A JP 13876579A JP 13876579 A JP13876579 A JP 13876579A JP S5663252 A JPS5663252 A JP S5663252A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- data
- pulse
- amplifier
- distance amplitude
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D89/00—Aspects of integrated devices not covered by groups H10D84/00 - H10D88/00
- H10D89/211—Design considerations for internal polarisation
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE:To secure an accurate correction for the distance amplitude even when a complicated control signal is delivered, by storing previously the control signal in a digital memory and then delivering the stored value successively in a distance amplitude correcting device used for the ultrasonic flaw detection by the pulse reflection method. CONSTITUTION:The data are written into the digital memory 11 in the calibration mode for the signal which controls the amplification factor of the amplifier 6. Then the calibration mode is switched to the actual flaw detection mode. The transmission pulse, if produced, is converted into the ultrasonic wave through the probe 1, and the echo reflected by the the defect or like in the subject is converted into the electric signal to be supplied to the amplifier 6. This echo is then displayed on the A scope 4. When a distance amplitude is corrected, the synchronous pulse is sent to the sunchronous circuit 10 simultaneously with the output of the pulse 13. The circuit 10 reads successively the control data in the memory 11 in a proper time interval to send it to the D/A converter 8. The converter 8 converts the digital data in the memory 11 into the analog control signal to control the amplification factor of the amplifier 6. Furthermore, the route length can be obtained directly when a correction curve is produced since the device 9 which calculates he value of interpolation and then produces the data to be written into the memory 11 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13876579A JPS5663252A (en) | 1979-10-29 | 1979-10-29 | Distance amplitude correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13876579A JPS5663252A (en) | 1979-10-29 | 1979-10-29 | Distance amplitude correcting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5663252A true JPS5663252A (en) | 1981-05-29 |
Family
ID=15229658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13876579A Pending JPS5663252A (en) | 1979-10-29 | 1979-10-29 | Distance amplitude correcting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5663252A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61129160U (en) * | 1985-01-31 | 1986-08-13 | ||
| JP2003185642A (en) * | 2001-12-14 | 2003-07-03 | Mitsubishi Heavy Ind Ltd | Separation inspection method and device for root of windmill blade of reinforced plastic |
-
1979
- 1979-10-29 JP JP13876579A patent/JPS5663252A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61129160U (en) * | 1985-01-31 | 1986-08-13 | ||
| JP2003185642A (en) * | 2001-12-14 | 2003-07-03 | Mitsubishi Heavy Ind Ltd | Separation inspection method and device for root of windmill blade of reinforced plastic |
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