JPS6411087A - Method and apparatus for discriminating working condition of body to be worked - Google Patents
Method and apparatus for discriminating working condition of body to be workedInfo
- Publication number
- JPS6411087A JPS6411087A JP62166620A JP16662087A JPS6411087A JP S6411087 A JPS6411087 A JP S6411087A JP 62166620 A JP62166620 A JP 62166620A JP 16662087 A JP16662087 A JP 16662087A JP S6411087 A JPS6411087 A JP S6411087A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- worked
- signals
- discriminating
- amplifier
- 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
- Laser Beam Processing (AREA)
Abstract
PURPOSE:To detect a working state by exact and simple means by discriminating the working state of a body to be worked through output signals of an acousto/electric converter arranged far from the body to be worked. CONSTITUTION:The working sound generated from the body 3 to be worked makes electric signal Sa through the acousto/electric converter 4, an amplifier 5. The signals Sa are sampled in gate sampling circuits 7, 8. An adder circuit 11 adds the sample signal Si of the newest period and the signal Sh immediately before it, and a signal equivalent to Sh-Si is given to an error amplifier 12. The amplifier 12 compares the signal from the adder circuit 11 with reference signal and the error signal Se is given to a control circuit 13. By the signals from a polarity discriminating circuit 14 and the error signal Se, the control circuit 13 gives the control signal 13 making the signals Se zero to a driving device 15 and also gives to a display device 16. The driving device 15 drives a convergent lens system 2 and converges laser beam into the optimum working position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62166620A JPS6411087A (en) | 1987-07-03 | 1987-07-03 | Method and apparatus for discriminating working condition of body to be worked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62166620A JPS6411087A (en) | 1987-07-03 | 1987-07-03 | Method and apparatus for discriminating working condition of body to be worked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6411087A true JPS6411087A (en) | 1989-01-13 |
Family
ID=15834672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62166620A Pending JPS6411087A (en) | 1987-07-03 | 1987-07-03 | Method and apparatus for discriminating working condition of body to be worked |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6411087A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02192888A (en) * | 1988-10-20 | 1990-07-30 | Hamamatsu Photonics Kk | Incision depth monitoring device and incising device |
| JP2010531236A (en) * | 2007-06-27 | 2010-09-24 | トルンプフ ヴェルクツォイクマシーネン ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Method for detecting contact point of laser beam at edge of object and laser processing machine |
-
1987
- 1987-07-03 JP JP62166620A patent/JPS6411087A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02192888A (en) * | 1988-10-20 | 1990-07-30 | Hamamatsu Photonics Kk | Incision depth monitoring device and incising device |
| JP2010531236A (en) * | 2007-06-27 | 2010-09-24 | トルンプフ ヴェルクツォイクマシーネン ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Method for detecting contact point of laser beam at edge of object and laser processing machine |
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