CN201985425U - Laser generating device - Google Patents
Laser generating device Download PDFInfo
- Publication number
- CN201985425U CN201985425U CN2011200512868U CN201120051286U CN201985425U CN 201985425 U CN201985425 U CN 201985425U CN 2011200512868 U CN2011200512868 U CN 2011200512868U CN 201120051286 U CN201120051286 U CN 201120051286U CN 201985425 U CN201985425 U CN 201985425U
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- laser
- laser power
- generating device
- energy
- electrically connected
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Abstract
The utility model discloses a laser generating device comprising a laser power supply, a laser generator electrically connected with the laser power supply, and a laser power supply controller electrically connected with the laser power supply. The laser power supply controller comprises a core controller and an electric quantity feedback branch circuit, and further comprises a laser energy feedback branch circuit providing laser energy closed loop feedback to the core controller. The laser generating device provided by the utility model adopts the structure that the laser energy feedback loop is electrically connected between the core controller and the laser generator, and has the advantages that first, the corresponding functional relationship between electric quantity input and laser energy output confirmed by a laser energy feedback device can be real-time detected; second, excessive deviation between the actual output light energy and preset laser energy caused by the ageing of the laser generating device is reduced at a great extent; and third, the circuit structure is simple and the upgrading is convenient.
Description
Technical field
The utility model relates to a kind of generating device of laser, relates in particular to a kind of generating device of laser based on laser energy and the two closed loop feedback of electric weight.
Background technology
In control system, control device is taken from the feedback information of controlled volume to the control action that controlled device applied, and promptly exports the Correction and Control effect according to reality, realizes task that controlled device is controlled, and this control principle is called feedback control principle.Feedback control system is divided into open-loop control system and closed-loop control system again.The basis of closed-loop control system control action is the deviation between controlled volume and the set-point.Closed-loop control system has following characteristics: control action is not directly from given input, but the deviation signal of system, produces control to system controlled volume by deviation; The feedback information of system controlled volume influences the deviation signal of system again conversely, promptly influences the size of control action.This control action that has circulation of one's own, make information bang path shape the loop of a closure, be called closed loop.
Existing generating device of laser comprises Laser Power Devices, laser generator and laser power controller.
Laser Power Devices are the energy of laser, and it provides pump energy to laser, control laser output power and the frequency that repeats.Laser generator is the parts that in the whole device electric energy are converted into luminous energy, and it exports stable laser under certain current/voltage condition.Usually, laser generator is made up of several parts such as resonant cavity, speculum, outgoing mirror, vacuum pump, circulating pump and heat exchangers.Laser power controller is the parts that transmit control signal to Laser Power Devices, and its main effect is the output of control Laser Power Devices, for the semiconductor laser generator provides stable operating current and voltage.
Usually, laser power controller is regulated the output of Laser Power Devices by gathering the electric weight feedback signal, so that reach the purpose of regulating the laser energy size.Wherein electric quantity signal can be a current signal, also can be voltage signal.
In laser power controller, the input of control system acquiescence electric weight and the output of laser are static functional relations.In fact, owing to reasons such as laser generator component ageing, working temperature changes, the functional relation of electric weight input and laser output is actually dynamic change, and there is some difference with expecting the size of exporting for the size that therefore must cause the actual output of laser.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of generating device of laser, the core controller of this generating device of laser can dynamically produce the control signal of two closed loop feedback according to laser energy value of feedback and electric weight value of feedback, determine the needed electric weight of laser energy of output expection, reduce the deviation between the laser energy of the laser energy of actual output and expection output, reach the purpose of accurate control laser energy output.
In order to achieve the above object, the utility model proposes a kind of generating device of laser, comprise Laser Power Devices, one laser generator that is electrically connected with described Laser Power Devices and a laser power controller that is electrically connected with described Laser Power Devices, described laser power controller comprises that a core controller and that is used for transmitting control signal to described Laser Power Devices is used for providing to described core controller the electric weight feedback branch of electric weight closed loop feedback, the two ends of described electric weight feedback branch are electrically connected with described core controller and described Laser Power Devices respectively, described laser power controller comprises that also one is used for providing to described core controller the laser energy feedback branch of laser energy closed loop feedback, and the two ends of described laser energy feedback branch are electrically connected with described core controller and described laser generator respectively.
Above-mentioned generating device of laser, described laser energy feedback branch is made up of a laser energy ultramagnifier.
Above-mentioned generating device of laser, described electric weight feedback branch is made up of an electric weight ultramagnifier, and the two ends of described electric weight ultramagnifier are electrically connected with described core controller and described Laser Power Devices respectively.
Compare with existing generating device of laser, generating device of laser of the present utility model is electrically connected a laser energy feedback loop between core controller and laser generator, it is advantageous that:
1. detection laser energy back device is imported the respective function relation of exporting with laser energy with the electric weight of determining in real time;
2. reduce the excessive situation of laser energy deviation that the generating device of laser aging actual light energy output that causes and expection are set on largely, ensured the stability and the reliability of generating device of laser;
3. circuit structure is simple, and upgrading is convenient.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and understand easily.
Fig. 1 is the structured flowchart of the utility model generating device of laser.
The reference numeral explanation:
The 1-laser power controller, the 2-Laser Power Devices, the 3-laser generator,
The 101-core controller, 102-laser energy ultramagnifier, 103-electric weight ultramagnifier.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 shows the structure of the generating device of laser that the utility model proposes.This generating device of laser comprises Laser Power Devices 2, the laser generator 3 that is electrically connected with Laser Power Devices 2 and the laser power controller 1 that is electrically connected with Laser Power Devices 2.
Wherein, laser power controller 1 comprises the electric weight feedback branch that is used for the core controller 101 that transmits control signal to Laser Power Devices 2 and is used for providing to core controller 101 the electric weight closed loop feedback.The two ends of this electric weight feedback branch are electrically connected with core controller 101 and Laser Power Devices 2 respectively.Laser power controller 1 also comprises the laser energy feedback branch that is used for providing to core controller 101 the laser energy closed loop feedback, and the two ends of this laser energy feedback branch are electrically connected with core controller 101 and laser generator 3 respectively.
The laser energy feedback branch is made up of a laser energy ultramagnifier 102.Preferably, laser energy feeds back its 102 resonant cavity rear end that is installed in laser generator 3, is used for detecting the size of output laser energy, and this signal is fed back in the core controller 101 in real time.
The electric weight feedback branch is made up of an electric weight ultramagnifier 103, and the two ends of electric weight ultramagnifier 103 are electrically connected with core controller 101 and Laser Power Devices 2 respectively.Electric weight ultramagnifier 103 is used for detecting the state of the electric weight of input, and the signal of telecommunication is fed back in the core controller 101 in real time.
When using generating device of laser of the present utility model, laser power controller 1 is the signal of monitoring laser energy ultramagnifier in real time, core controller 101 is with the laser energy signal of laser energy feedback branch feedback and the state of charge signal processing of electric weight feedback branch feedback, and compare with the energy of theory setting, form a closed-loop control system, and the needed electric weight of laser energy of definite thus output expection, reach the purpose of accurate control laser energy output, thereby the laser energy that guarantees actual output is very nearly the same with the laser energy of expection output.
It should be noted that; above content is to further describing that the utility model is done in conjunction with concrete execution mode; can not assert that embodiment of the present utility model only limits to this; under above-mentioned guidance of the present utility model; those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improvement or distortion drop in the protection range of the present utility model.
Claims (3)
1. generating device of laser, comprise Laser Power Devices, a laser generator that is electrically connected with described Laser Power Devices and a laser power controller that is electrically connected with described Laser Power Devices, described laser power controller comprises that a core controller and that is used for transmitting control signal to described Laser Power Devices is used for providing to described core controller the electric weight feedback branch of electric weight closed loop feedback, the two ends of described electric weight feedback branch are electrically connected with described core controller and described Laser Power Devices respectively, it is characterized in that:
Described laser power controller comprises that also one is used for providing to described core controller the laser energy feedback branch of laser energy closed loop feedback, and the two ends of described laser energy feedback branch are electrically connected with described core controller and described laser generator respectively.
2. generating device of laser according to claim 1 is characterized in that:
Described laser energy feedback branch is made up of a laser energy ultramagnifier.
3. generating device of laser according to claim 1 is characterized in that:
Described electric weight feedback branch is made up of an electric weight ultramagnifier, and the two ends of described electric weight ultramagnifier are electrically connected with described core controller and described Laser Power Devices respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200512868U CN201985425U (en) | 2011-03-01 | 2011-03-01 | Laser generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200512868U CN201985425U (en) | 2011-03-01 | 2011-03-01 | Laser generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985425U true CN201985425U (en) | 2011-09-21 |
Family
ID=44612877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200512868U Expired - Lifetime CN201985425U (en) | 2011-03-01 | 2011-03-01 | Laser generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201985425U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637012A (en) * | 2012-04-01 | 2012-08-15 | 深圳市联赢激光股份有限公司 | Double-path power negative feedback system for laser processing equipment |
| CN103212875A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Closed loop laser energy control method and system |
| CN103264230A (en) * | 2013-04-16 | 2013-08-28 | 周德海 | Laser power supply energy feedback control device |
| CN104105568A (en) * | 2013-02-14 | 2014-10-15 | 三菱电机株式会社 | Laser processing device, processing control device and pulse frequency control method |
| CN117293641A (en) * | 2023-11-27 | 2023-12-26 | 深圳市通甪科技有限公司 | Laser energy feedback circuit, laser energy feedback device and laser ablation instrument |
-
2011
- 2011-03-01 CN CN2011200512868U patent/CN201985425U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212875A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Closed loop laser energy control method and system |
| CN102637012A (en) * | 2012-04-01 | 2012-08-15 | 深圳市联赢激光股份有限公司 | Double-path power negative feedback system for laser processing equipment |
| CN102637012B (en) * | 2012-04-01 | 2013-12-18 | 深圳市联赢激光股份有限公司 | Double-path power negative feedback system for laser processing equipment |
| CN104105568A (en) * | 2013-02-14 | 2014-10-15 | 三菱电机株式会社 | Laser processing device, processing control device and pulse frequency control method |
| CN104105568B (en) * | 2013-02-14 | 2015-10-21 | 三菱电机株式会社 | Laser processing device, Working control device and pulse frequency control method |
| CN103264230A (en) * | 2013-04-16 | 2013-08-28 | 周德海 | Laser power supply energy feedback control device |
| CN103264230B (en) * | 2013-04-16 | 2016-04-20 | 周德海 | A kind of Laser Power Devices energy back control device |
| CN117293641A (en) * | 2023-11-27 | 2023-12-26 | 深圳市通甪科技有限公司 | Laser energy feedback circuit, laser energy feedback device and laser ablation instrument |
| CN117293641B (en) * | 2023-11-27 | 2024-03-01 | 深圳市通甪科技有限公司 | Laser energy feedback circuit, laser energy feedback device and laser ablation instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |