CN112179489A - Power testing method of pulse laser - Google Patents
Power testing method of pulse laser Download PDFInfo
- Publication number
- CN112179489A CN112179489A CN201910583674.1A CN201910583674A CN112179489A CN 112179489 A CN112179489 A CN 112179489A CN 201910583674 A CN201910583674 A CN 201910583674A CN 112179489 A CN112179489 A CN 112179489A
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- China
- Prior art keywords
- pulse laser
- laser
- standard
- electric signals
- calibration
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- Pending
Links
- 238000012360 testing method Methods 0.000 title claims description 9
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000010998 test method Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J2001/4238—Pulsed light
Abstract
A power test method of a pulse laser relates to the technical field of lasers. Taking a plurality of standard pulse lasers of the same type, and recording the standard power on the nameplate; each standard pulse laser emits laser, and light intensity signals are converted into calibration electric signals to be collected; respectively recording the conditions of the calibration electric signals of a plurality of standard pulse lasers, and carrying out mean value processing to obtain calibration mean value electric signals; and outputting laser light by a pulse laser needing to be detected. After the technical scheme is adopted, the invention has the beneficial effects that: the method has the advantages of simple operation, high use value, low operation labor intensity, good quality, higher efficiency, capability of meeting large-batch detection, higher accuracy, capability of meeting detection requirements, superior performance in the field of the same trip and strong popularization.
Description
Technical Field
The invention relates to the technical field of lasers, in particular to a power test method of a pulse laser.
Background
Lasers are operationally divided into continuous lasers and pulsed lasers. The pulse laser is a laser which works once every certain time when the pulse width of a single laser is less than 0.25 second, has larger output power and is suitable for laser marking, cutting, distance measurement and the like. Common pulse lasers include Yttrium Aluminum Garnet (YAG) lasers, ruby lasers, neodymium glass lasers, and the like, as well as nitrogen molecule lasers, excimer lasers, and the like, among solid-state lasers. Q-switching and mode-locking are the two most common techniques for obtaining pulsed laser light.
The Q-switching technique, also called Q-switching technique, is a technique for obtaining high peak power, narrow pulse width laser pulses. The Q-switching technique has the following working principle that the Q value of a resonant cavity is tried to be increased at the initial stage of optical pumping so as to inhibit the generation of laser oscillation and accumulate the energy particle number on a working substance. As the optical pump continues to be energized, the upper level population gradually accumulates to a maximum. When the Q value of the resonant cavity is suddenly adjusted to be low, a large number of particles accumulated at the upper energy level are subjected to avalanche transition to the lower energy level of the laser, and the stored energy is released in a very short time, so that laser pulse output with extremely high peak power is obtained.
The power testing method for the pulse laser in the market at present is complex in operation, low in use value, high in operation labor intensity, poor in quality, low in efficiency, incapable of meeting large-batch detection, low in accuracy, incapable of meeting detection requirements, low in performance in the field of the same industry and poor in popularization.
Disclosure of Invention
The invention aims to provide a power testing method of a pulse laser aiming at the defects and shortcomings of the prior art, and the method is simple to operate, high in use value, low in operation labor intensity, excellent in quality, higher in efficiency, capable of meeting the requirement of large-batch detection, higher in accuracy, capable of meeting the detection requirement, superior in performance and strong in popularization in the same field.
In order to achieve the purpose, the invention adopts the following technical scheme that the method comprises the following steps:
step one, taking a plurality of standard pulse lasers of the same type, and recording standard power on a nameplate;
step two, enabling each standard pulse laser to emit laser, and converting the light intensity signal into a calibration electric signal for collection;
respectively recording the conditions of the calibration electric signals of a plurality of standard pulse lasers, and carrying out mean value processing to obtain calibration mean value electric signals;
step four, outputting laser by the pulse laser to be detected, and converting the light intensity signal of the pulse laser to be detected into a detection electric signal;
and step five, comparing the electric signals of the calibration mean value of the detection electric signals to obtain whether the power test is qualified or not.
The pulse laser in the first step is a standard pulse laser used for the first time.
The model of the standard pulse laser in the first step is 523 NM.
And in the second step, the frequency of emitting laser by each standard pulse laser is 3-5.
And in the third step, the calibration mean value electric signal is checked.
And the frequency of outputting laser by the pulse laser detected in the fourth step is 5-8 times.
The working principle of the invention is as follows: taking a plurality of standard pulse lasers of the same type, and recording the standard power on the nameplate; each standard pulse laser emits laser, and light intensity signals are converted into calibration electric signals to be collected; respectively recording the conditions of the calibration electric signals of a plurality of standard pulse lasers, and carrying out mean value processing to obtain calibration mean value electric signals; outputting laser to be detected by a pulse laser, and converting a light intensity signal of the pulse laser to be detected into a detection electric signal; and comparing the electric signals of the calibration mean value of the detection electric signals to obtain whether the power test is qualified or not.
After the technical scheme is adopted, the invention has the beneficial effects that: the method has the advantages of simple operation, high use value, low operation labor intensity, good quality, higher efficiency, capability of meeting large-batch detection, higher accuracy, capability of meeting detection requirements, superior performance in the field of the same trip and strong popularization.
Detailed Description
The technical scheme adopted by the specific implementation mode is as follows: it comprises the following steps:
step one, taking a plurality of standard pulse lasers of the same type, and recording standard power on a nameplate;
step two, enabling each standard pulse laser to emit laser, and converting the light intensity signal into a calibration electric signal for collection;
respectively recording the conditions of the calibration electric signals of a plurality of standard pulse lasers, and carrying out mean value processing to obtain calibration mean value electric signals;
step four, outputting laser by the pulse laser to be detected, and converting the light intensity signal of the pulse laser to be detected into a detection electric signal;
and step five, comparing the electric signals of the calibration mean value of the detection electric signals to obtain whether the power test is qualified or not.
The pulse laser in the first step is a standard pulse laser used for the first time. The accuracy is high.
The model of the standard pulse laser in the first step is 523 NM.
And in the second step, the frequency of emitting laser by each standard pulse laser is 3-5. And the laser is emitted for a plurality of times, so that the error is reduced.
And in the third step, the calibration mean value electric signal is checked. Verification reduces errors.
And the frequency of outputting laser by the pulse laser detected in the fourth step is 5-8 times. And the laser is emitted for a plurality of times, so that the error is reduced.
The working principle of the invention is as follows: taking a plurality of standard pulse lasers of the same type, and recording the standard power on the nameplate; each standard pulse laser emits laser, and light intensity signals are converted into calibration electric signals to be collected; respectively recording the conditions of the calibration electric signals of a plurality of standard pulse lasers, and carrying out mean value processing to obtain calibration mean value electric signals; outputting laser to be detected by a pulse laser, and converting a light intensity signal of the pulse laser to be detected into a detection electric signal; and comparing the electric signals of the calibration mean value of the detection electric signals to obtain whether the power test is qualified or not.
After the technical scheme is adopted, the invention has the beneficial effects that: the method has the advantages of simple operation, high use value, low operation labor intensity, good quality, higher efficiency, capability of meeting large-batch detection, higher accuracy, capability of meeting detection requirements, superior performance in the field of the same trip and strong popularization.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The power test method of the pulse laser is characterized by comprising the following steps:
step one, taking a plurality of standard pulse lasers of the same type, and recording standard power on a nameplate;
step two, enabling each standard pulse laser to emit laser, and converting the light intensity signal into a calibration electric signal for collection;
respectively recording the conditions of the calibration electric signals of a plurality of standard pulse lasers, and carrying out mean value processing to obtain calibration mean value electric signals;
step four, outputting laser by the pulse laser to be detected, and converting the light intensity signal of the pulse laser to be detected into a detection electric signal;
and step five, comparing the electric signals of the calibration mean value of the detection electric signals to obtain whether the power test is qualified or not.
2. The power test method of a pulse laser according to claim 1, characterized in that: the pulse laser in the first step is a standard pulse laser used for the first time.
3. The power test method of a pulse laser according to claim 1, characterized in that: the model of the standard pulse laser in the first step is 523 NM.
4. The power test method of a pulse laser according to claim 1, characterized in that: and in the second step, the frequency of emitting laser by each standard pulse laser is 3-5.
5. The power test method of a pulse laser according to claim 1, characterized in that: and in the third step, the calibration mean value electric signal is checked.
6. The power test method of a pulse laser according to claim 1, characterized in that: and the frequency of outputting laser by the pulse laser detected in the fourth step is 5-8 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910583674.1A CN112179489A (en) | 2019-07-01 | 2019-07-01 | Power testing method of pulse laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910583674.1A CN112179489A (en) | 2019-07-01 | 2019-07-01 | Power testing method of pulse laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112179489A true CN112179489A (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910583674.1A Pending CN112179489A (en) | 2019-07-01 | 2019-07-01 | Power testing method of pulse laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112179489A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027198A1 (en) * | 2022-08-02 | 2024-02-08 | 大族激光科技产业集团股份有限公司 | Laser machining quality monitoring method and monitoring assembly, and machining device and storage medium |
-
2019
- 2019-07-01 CN CN201910583674.1A patent/CN112179489A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027198A1 (en) * | 2022-08-02 | 2024-02-08 | 大族激光科技产业集团股份有限公司 | Laser machining quality monitoring method and monitoring assembly, and machining device and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210105 |
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| WD01 | Invention patent application deemed withdrawn after publication |