JPS6148091B2 - - Google Patents
Info
- Publication number
- JPS6148091B2 JPS6148091B2 JP16020680A JP16020680A JPS6148091B2 JP S6148091 B2 JPS6148091 B2 JP S6148091B2 JP 16020680 A JP16020680 A JP 16020680A JP 16020680 A JP16020680 A JP 16020680A JP S6148091 B2 JPS6148091 B2 JP S6148091B2
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- laser
- laser light
- temperature
- laser power
- 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.)
- Expired
Links
- 239000012530 fluid Substances 0.000 claims description 34
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
- G01K17/003—Measuring quantity of heat for measuring the power of light beams, e.g. laser beams
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
【発明の詳細な説明】
本発明は、流体をレーザ吸収負荷として用い、
この負荷体にレーザ光を入射させてレーザのエネ
ルギーを流体負荷に吸収させ、この流体の温度変
化と流体の流量からレーザ電力を測定するレーザ
電力の測定法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention uses a fluid as a laser absorption load,
The present invention relates to a laser power measurement method in which a laser beam is incident on the load body, the laser energy is absorbed by the fluid load, and the laser power is measured from the temperature change of the fluid and the flow rate of the fluid.
レーザ技術が産業生産加工機等に応用されるよ
うになるにつれ、レーザ出力が飛躍的に高出力と
なつてきた。このレーザ電力の測定はレーザ光に
よる機械加工等を行ううえで重要であるが、高出
力レーザのレーザ電力を測定するには従来の材料
では困難であつた。すなわち、レーザ光吸収体の
負荷体として用いる材料の耐熱、耐久性、信頼性
などの面で十分なものは開発されていない。 As laser technology has come to be applied to industrial production processing machines, etc., laser output has become dramatically higher. Measuring this laser power is important when performing machining using laser light, but it has been difficult to measure the laser power of high-power lasers using conventional materials. In other words, no materials have been developed that are sufficient in terms of heat resistance, durability, reliability, etc., to be used as the load body of the laser light absorber.
本発明はこのような点に鑑み、流体をレーザ光
吸収負荷体として用い、この流体の温度変化と流
量からレーザ電力を測定するもので、従来の固体
負荷体を用いてレーザ電力を測定する方法とは全
く原理が異なるものである。 In view of these points, the present invention uses a fluid as a laser beam absorbing load and measures laser power from the temperature change and flow rate of this fluid, which is different from the conventional method of measuring laser power using a solid load. The principle is completely different from that.
例えば炭酸ガスレーザ（CO2）のレーザ光は水
に吸収される性質を有しているが、本発明はこの
性質を利用して簡単にレーザ電力を測定するもの
である。 For example, laser light from a carbon dioxide laser (CO 2 ) has the property of being absorbed by water, and the present invention utilizes this property to easily measure laser power.
以下、図面を参照して説明する。第１図、第２
図は本発明のレーザ電力計の一実施例の正面断面
図と側面断面図で、流体の流量を測定する流量計
１とレーザ光を照射する前と照射後の流体の温度
を測定するための温度センサ２，２′そして流体
がレーザ光を吸収するように整形する流体負荷体
整形板３と校正用ヒータ４から構成されている。
レーザ光はレーザ光導入口５から導入する。 This will be explained below with reference to the drawings. Figures 1 and 2
The figures are a front sectional view and a side sectional view of an embodiment of the laser power meter of the present invention, in which a flow meter 1 for measuring the flow rate of fluid and a flow meter 1 for measuring the temperature of the fluid before and after irradiation with laser light are shown. It consists of temperature sensors 2, 2', a fluid load shaping plate 3 that shapes the fluid so that it absorbs laser light, and a calibration heater 4.
The laser light is introduced from the laser light introduction port 5.
次に、このレーザ電力計の動作原理を説明する
と、流体Ｈはポンプなどによつて電力計の上部に
導かれ、流量計１を通つて落下する。この流量計
は流体の流量を測定するためのもので、設置場所
は図以外のところでもよい。流量が測定された流
体Ｈは温度センサ２によりレーザ光の照射前の温
度が測定され、流体負荷体整形板３に達する。こ
の流体負荷体整形板はレーザ光を吸収するように
流体を照射位置に導くためのものである。流体Ｈ
を流した状態で、測定するレーザ光をレーザ光導
入口５から導入すると、レーザ光は流体Ｈに照射
して吸収され、流体Ｈの温度が上昇することにな
る。この温度上昇した流体Ｈは校正用ヒーター４
を通つて温度センサ２′により測定される。そし
て、流体Ｈの流量と温度変化が上記より求められ
るので、次式からレーザ光のレーザ電力が測定で
きる。 Next, the operating principle of this laser power meter will be explained. Fluid H is guided to the upper part of the power meter by a pump or the like, and falls through the flow meter 1. This flowmeter is for measuring the flow rate of fluid, and may be installed in locations other than those shown. The temperature of the fluid H whose flow rate has been measured is measured by the temperature sensor 2 before being irradiated with the laser beam, and the fluid H reaches the fluid load body shaping plate 3 . This fluid load body shaping plate is for guiding the fluid to the irradiation position so as to absorb the laser light. Fluid H
When a laser beam to be measured is introduced from the laser beam introduction port 5 while the fluid is flowing, the laser beam irradiates the fluid H and is absorbed, causing the temperature of the fluid H to rise. The fluid H whose temperature has increased is the calibration heater 4
The temperature is measured by a temperature sensor 2'. Since the flow rate and temperature change of the fluid H are determined from the above, the laser power of the laser beam can be measured from the following equation.
Ｐ(KW)＝Ａ・ΔＴ・Ｑ・4.18605÷60
＝0.0697・ΔＴ・Ｑ・Ａ
Ａ：負荷体の吸収係数
ここでΔＴ：流体の温度上昇値（℃）
Ｑ：流体の１分間の流量/min
たとえば、毎分１/minの流体が流れ、流体
の度が10℃上昇するとレーザ電力は上式から
697AWとなる。P (KW) = A・ΔT・Q・4.18605÷60 =0.0697・ΔT・Q・A A: Absorption coefficient of the load body, where ΔT: Temperature rise value of the fluid (°C) Q: 1 minute flow rate of the fluid/ min For example, if fluid flows at 1/min per minute and the temperature of the fluid increases by 10°C, the laser power will be calculated from the above equation.
It will be 697AW.
また、炭酸ガスレーザの場合はレーザ光吸収負
荷体として水を用いればよいが、その他のレーザ
光の場合は色素を混入した混合水を用いればレー
ザ電力が測定できる。 Further, in the case of a carbon dioxide laser, water may be used as the laser light absorbing load, but in the case of other laser lights, the laser power can be measured by using mixed water containing a dye.
以上述べたように、本発明は流体がレーザ光を
吸収するという性質を利用し、流体をレーザ光吸
収負荷体として用いてレーザ電力を測定するよう
にしたので、各種のレーザのレーザ電力を簡便に
測定でき、その実用効果は大なるものがある。 As described above, the present invention makes use of the property that fluid absorbs laser light, and uses the fluid as a laser light absorbing load to measure laser power. Therefore, the laser power of various lasers can be easily measured. can be measured, and its practical effects are significant.
第１図、第２図は本発明の一実施例の正面断面
図と側面断面図である。
１……流量計、２，２′……温度センサ、３…
…流体負荷体整形板、４……校正用ヒーター、５
……レーザ光導入口、Ｈ……流体。
1 and 2 are a front sectional view and a side sectional view of an embodiment of the present invention. 1...Flowmeter, 2,2'...Temperature sensor, 3...
...Fluid load body shaping plate, 4...Calibration heater, 5
...Laser light inlet, H...Fluid.
Claims (1)
ザ光の照射により変化した流体の温度と流体の流
量とを測定してレーザ電力を求めることを特徴と
するレーザ電力の測定法。1. A method for measuring laser power, which uses a fluid as a laser light absorbing load and measures the temperature of the fluid that changes due to laser light irradiation and the flow rate of the fluid to determine the laser power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16020680A JPS5784320A (en) | 1980-11-14 | 1980-11-14 | Method for measuring laser power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16020680A JPS5784320A (en) | 1980-11-14 | 1980-11-14 | Method for measuring laser power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5784320A JPS5784320A (en) | 1982-05-26 |
| JPS6148091B2 true JPS6148091B2 (en) | 1986-10-22 |
Family
ID=15710057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16020680A Granted JPS5784320A (en) | 1980-11-14 | 1980-11-14 | Method for measuring laser power |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5784320A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2551729B2 (en) * | 1993-09-24 | 1996-11-06 | 須山建設株式会社 | Connection structure |
| CN105606214B (en) * | 2015-12-28 | 2018-05-18 | 湖南华曙高科技有限责任公司 | Calibrate the devices and methods therefor of laser power |
-
1980
- 1980-11-14 JP JP16020680A patent/JPS5784320A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5784320A (en) | 1982-05-26 |
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