JPH044271U - - Google Patents
Info
- Publication number
- JPH044271U JPH044271U JP4482690U JP4482690U JPH044271U JP H044271 U JPH044271 U JP H044271U JP 4482690 U JP4482690 U JP 4482690U JP 4482690 U JP4482690 U JP 4482690U JP H044271 U JPH044271 U JP H044271U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- defect
- comparator circuit
- signal
- pulse
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
第１図は本考案欠陥識別信号処理回路の一実施
例のブロツク線図、第２図は従来の信号処理回路
のブロツク線図である。
１……コンパレーター回路、２……プリセツト
カウンター回路、Ｎ……設定値、２１……ゲート
回路、２２……検波回路。
FIG. 1 is a block diagram of an embodiment of the defect identification signal processing circuit of the present invention, and FIG. 2 is a block diagram of a conventional signal processing circuit. 1... Comparator circuit, 2... Preset counter circuit, N... Setting value, 21... Gate circuit, 22... Detection circuit.
Claims (1)
出される欠陥信号を基準電圧と比較してパルス波
形に整形するコンパレーター回路と、上記コンパ
レーター回路から送られるパルス信号の連続して
得られる信号発生回路ｎが設定値Ｎと比較しｎ≧
Ｎであるか否かを判別するプリセツトカウンター
回路とを具えたことを特徴とする欠陥識別信号処
理回路。 A comparator circuit that compares the defect signal detected within the reception gate area in ultrasonic flaw detection with a reference voltage and shapes it into a pulse waveform, and a signal generation circuit that continuously obtains the pulse signal sent from the comparator circuit. When n is compared with the set value N, n≧
1. A defect identification signal processing circuit comprising: a preset counter circuit for determining whether or not the defect is N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4482690U JPH044271U (en) | 1990-04-26 | 1990-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4482690U JPH044271U (en) | 1990-04-26 | 1990-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH044271U true JPH044271U (en) | 1992-01-16 |
Family
ID=31558468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4482690U Pending JPH044271U (en) | 1990-04-26 | 1990-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044271U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61155856A (en) * | 1984-12-28 | 1986-07-15 | Toshiba Corp | Ultrasonic flaw inspector |
| JPS63111459A (en) * | 1986-10-30 | 1988-05-16 | Babcock Hitachi Kk | Ae sensor noise removing device |
-
1990
- 1990-04-26 JP JP4482690U patent/JPH044271U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61155856A (en) * | 1984-12-28 | 1986-07-15 | Toshiba Corp | Ultrasonic flaw inspector |
| JPS63111459A (en) * | 1986-10-30 | 1988-05-16 | Babcock Hitachi Kk | Ae sensor noise removing device |