CN108666856A - Power stability type solid state laser and control method - Google Patents
Power stability type solid state laser and control method Download PDFInfo
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- CN108666856A CN108666856A CN201810893029.5A CN201810893029A CN108666856A CN 108666856 A CN108666856 A CN 108666856A CN 201810893029 A CN201810893029 A CN 201810893029A CN 108666856 A CN108666856 A CN 108666856A
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- temperature
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- state laser
- power stability
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/042—Arrangements for thermal management for solid state lasers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
Abstract
The invention discloses a kind of power stability type solid state laser and control methods, the power stability type solid state laser includes the pedestal of circulation cooling water in it, heat conduction to install the optical crystal of the fixed solid state laser carries seat, it is arranged and carries the temperature sensor on seat in heat conduction, it is arranged and carries the semiconductor refrigerating unit driven between seat and pedestal and by Bipolar current driver in heat conduction, and control unit, the present invention is on the basis of traditional temperature control system, construct temperature current double closed-loop control system, inner ring is the current closed-loop using PI controls, outer shroud is the temperature closed loop using PID control, the control accuracy of system is improved with this, it is finally reached the purpose for improving solid state laser power stability.
Description
Technical field
The invention belongs to field of laser device technology, and in particular to a kind of power stability type solid state laser and control method.
Background technology
Solid state laser has that wavelength is short, absorptivity is high, small, can be excellent using optical fiber transmission realization Flexible Manufacture etc.
Point keeps its application in laser processing more and more extensive.The country is concentrated mainly on raising work(for the research of solid state laser
In terms of rate, and the stability of solid state laser power is also to limit its big factor promoted the use of, and is solid state laser performance
Important indicator.Operation material, that is, optical crystal in solid state laser easy tos produce heat deposition so as to cause itself at work
Temperature change, and then the spectrum of laser output laser, power is caused to generate drift, seriously affect the stabilization of the power of laser
Property.Therefore many domestic solid state lasers cannot meet the needs of industrial applications in terms of stability and reliability, this is just
The development and application of solid state laser are significantly limited, so the stability for improving solid state laser is one urgently to be resolved hurrily
Problem.And accurate control is carried out to the operating temperature of its optical crystal, and so that it is operated at a temperature of best match, it is solid for improving
The Performance And Reliability of body laser is of great significance, and domestic solid state laser is also enable to obtain more widely promoting and answer
With.
It is the important method for improving its power stability to keep the temperature in the solid state laser course of work to stablize.Existing rank
Section, it is to use temperature control system, including air-cooled, water cooling and refrigerant etc. to keep one of the effective ways that temperature is stablized.And it is domestic
The water cooling temperature control system mostly used greatly, the disadvantage is that one side precision is relatively low, be on the other hand there are certain hysteresis quality,
It tends not to timely cool down to the raised solid state laser of temperature.It is therefore desirable to introduce one kind can high efficiency it is high-precision
The temperature control system of degree realized solid state laser temperature and stablized, in real time, efficiently keeps temperature steady in laser working process
It is fixed.But since TEC will produce temperature difference T during the work time, to generate thermoelectromotive force, the presence of the electromotive force is in reality
It can influence to load effective operating voltage at the both ends TEC in the work of border, to influence its practical operating current, lead to final temperature
Control accuracy is not high.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of power stability type solid state laser, the work(
Rate stable type solid state laser drops optical crystal using the mode that semiconductor refrigerating module and circulating water cooling system combine
Temperature, based on embedded system complete to the acquisition of optical crystal temperature, analysis, feedback and control, keep its temperature precise and stable
Within preset temperature.The device can accomplish real-time, accurate temperature controlling, effectively avoid the hysteresis quality and error of traditional temperature-controlling system,
Optical crystal temperature variation curve is generated in real time, improves the power stability of solid state laser to a greater extent.
The present invention is achieved by the following technical solutions：
A kind of power stability type solid state laser includes the pedestal of circulation cooling water in it, to install described in fixation
The heat conduction of the optical crystal of solid state laser carries seat, is arranged and carries the temperature sensor on seat in heat conduction, setting heat conduction carry seat and
The semiconductor refrigerating unit and control unit driven between pedestal and by Bipolar current driver,
The control unit includes the microprocessor and current transformer with temperature sensor communication connection, institute
The current transformer stated exports to acquire the electric current of the Bipolar current driver current, the microprocessor and institute
The Bipolar current driver stated controllably connects.
In the above-mentioned technical solutions, it is copper that the heat conduction, which carries seat,.
In the above-mentioned technical solutions, it is cavate or platform-type structure that the heat conduction, which carries seat,.
In the above-mentioned technical solutions, the temperature sensor includes temperature sensing unit, is formed with to position described
Temperature sensing unit hollow cavity armouring screw, the armouring screw carries seat with the heat conduction and is threadedly coupled.
In the above-mentioned technical solutions, the temperature sensor is thermal resistance sensor, thermal resistance sensor warp
Microprocessor is connected to after signal amplifier and A/D modules, the output of the microprocessor is isolated through D/A modules and given value of current
Amplifier is connected to the Bipolar current driver.
In the above-mentioned technical solutions, the microprocessor, current transformer, A/D modules, D/A modules and given value of current
Isolated amplifier is integrated on same circuit board.
In the above-mentioned technical solutions, the temperature sensor is multiple uniformly distributed or is distributed in optical crystal by predetermined rule
Around multiple.
In the above-mentioned technical solutions, the microprocessor is microcontroller.
In the above-mentioned technical solutions, further include the human-computer interaction screen being connect with the microcontroller communication or PC machine.
In the above-mentioned technical solutions, the semiconductor chilling plate is driven by H bridges.
A kind of control method of the power stability type solid state laser, includes the following steps,
1) circulating water cooling system is opened, control coolant-temperature gage is stablized in the range of≤25 DEG C；
2) solid state laser is started to work, and optical crystal temperature gradually rises；Temperature sensor receives temperature change letter
Number and feed back to microcontroller,
3) temperature signal is analyzed and is handled in microcontroller, when collected temperature signal is believed higher than preset temperature
Number when, using PID control change PWM duty cycle adjustment driving circuit output effective voltage, control TEC operating currents it is big
It is small, make it start to freeze；
4) practical TEC working current values are acquired and are compared with the expection TEC operating currents precomputed, are calculated through PI
Certain controlling increment is obtained after method operation to compensate TEC operating voltages, it is real to make TEC be operated under prospective current
Now accurately temperature controls.
The advantages of the present invention are：
So the present invention constructs temperature-current double closed-loop control system on the basis of traditional temperature control system,
Inner ring is using the current closed-loop of PI controls, and outer shroud is the temperature closed loop using PID control, and the control essence of system is improved with this
Degree is finally reached the purpose for improving solid state laser power stability.
It completes, to the acquisition of optical crystal temperature, analysis, feedback and control, to keep its temperature accurately steady based on embedded system
It is scheduled within preset temperature.The device can accomplish real-time, accurate temperature controlling, effectively avoid the hysteresis quality and mistake of traditional temperature-controlling system
Difference generates optical crystal temperature variation curve in real time, improves the power stability of solid state laser to a greater extent.
Description of the drawings
Fig. 1 is power stability type solid state laser of the present invention and the structural schematic diagram of control method.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, furtherly with reference to specific embodiment
Bright technical scheme of the present invention.
Embodiment one
The power stability type solid state laser of the present invention includes the pedestal for the cooling water that circulates in it, to install fixed institute
The heat conduction of the optical crystal for the solid state laser stated carries seat, and the temperature sensor in heat conduction carries seat is arranged, and setting is carried in heat conduction
The semiconductor refrigerating unit driven between seat and pedestal and by Bipolar current driver, semiconductor chilling plate as mentioned such as H bridges,
And control unit, wherein the control unit includes the microprocessor with temperature sensor communication connection, to
The current transformer of the output of the acquisition Bipolar current driver, the controller drive with the Bipolar current
Dynamic device controllably connects.
Wherein, the temperature sensor that will measure and control optical crystal temperature, such as platinum sensor and TEC semiconductor systems
Cold unit is mounted on heat conduction and carries seat, and if copper heat conduction carries on seat, heat conduction load seat can be cavate or platform-type structure to carry
Optical crystal is positioned, while the good temperature equalization of seat is carried using heat conduction, the accuracy of temperature acquisition can be realized, using partly leading
Body refrigeration unit radiates to be controlled into trip temperature, by constructing isoperibol come the temperature of indirect stable optical crystal.Together
When, heat conduction is carried into seat setting on pedestal and base interior is radiated by cooling water.Using platinum resistance measuring temperature, according to
The difference of Current Temperatures and set temperature, control TEC semiconductor chilling plates are freezed and are heated, the ambient side of TEC semiconductors
For the metastable recirculated water of temperature, make the work of its optical crystal at a set temperature.In conjunction with optical crystal temperature change feature
With TEC semiconductor chilling plate working characteristics, it is controlled into trip temperature using temperature-current two close cycles temperature control system, is protected
It demonstrate,proves its operating temperature to stablize near setting value, to improve the laser output stability of laser.When system acquisition to solid
When laser optical crystal temperature effect increases, microprocessor (MCU) analyzes collecting temperature, and there are difference, outer shroud temperature with preset temperature
Closed loop uses PID control, is started to work and is freezed using PWM driving TEC driving circuits；Inner ring current closed-loop uses PI controls pair
TEC both end voltages compensate, and flow through TEC electric currents to achieve the purpose that adjust, final to realize the higher temperature control of precision.
I.e. collected actual temperature value obtains certain controlled quentity controlled variable in MCU with set temperature value after pid algorithm operation, the control
Rule is converted to the PWM drive signal with corresponding duty ratio, control Bipolar current driver driving to amount according to a certain percentage
TEC works.Using current transformer acquire current TEC real works electric current simultaneously, the real work electric current in MCU and
The expection TEC operating currents precomputed are compared, and certain controlling increment is obtained after PI algorithm operations, which increases
Amount compensates the driving voltage at the both ends TEC after being converted to the pwm control signal with certain duty ratio.Wherein, if it is traditional
Conductor temperature control system controls the temperature of controlled device only with pid control algorithm, although can will be by temperature control
Degree stablize within certain accuracy rating, but the temperature control mode have ignored it is non-in the semiconductor cooler course of work
Linear working state, and as its electrical characteristic of temperature change and working efficiency can all change.Therefore, if only to controlled
Object uses PID control, although can stablize its temperature in certain accuracy rating, precision is poor, cannot be satisfied solid
Requirement of the optical crystal for temperature control precision in laser, therefore the temperature-current pair that uses of present invention novelty closes
Ring control method and outer shroud are adjusted using PID control using temperature as feedback target, inner ring is controlled TEC using PI controls
Electric current processed carries out linearization process as feedback target to the working condition of TEC, to reach the temperature control of higher precision.
Wherein, when carrying out PWM controls the biasing of metal-oxide-semiconductor grid is modulated according to the variation of respective loads, is realized with this
The change of metal-oxide-semiconductor turn-on time, to realize the change of switching power supply output.By the width for changing PWM waveform pulse
Or the purpose of pressure regulation may be implemented in duty ratio.This mode can be such that the operating voltage of TEC or TEC controls, and voltage is more accurate not to be examined
In the case of considering other factors) change with solid laser crystal temperature change, it realizes the purpose of TEC heating or refrigeration, is
A kind of very effective technology that analog circuit is controlled using the digital signal of microprocessor.
Embodiment two
Wherein, the temperature sensor includes temperature sensing unit, is formed with to position the temperature sensing list
The armouring screw of the hollow cavity of member, the armouring screw carry seat with the heat conduction and are threadedly coupled.The temperature sensor
For thermal resistance sensor, the thermal resistance sensor is connected to microprocessor after signal amplifier and A/D modules, and described is micro-
The output of processor is connected to the Bipolar current driver through D/A modules and given value of current isolated amplifier.Thermal resistance
Collected current signal is converted into voltage signal by the electric current on sensor with ambient temperature value linear change, due to acquisition
To be millivolt level voltage signal, first amplify through pre-amplifier under the control of microcontroller, then pass through multi-channel analog turn
It changes switch and reaches the input terminal of A/D converter, then digital signal is converted analog signals into through A/D converter, be output to monolithic
Analyzing processing is carried out in machine, by real-time collecting temperature situation of change, obtains one group of temperature curve.
Further, the microprocessor, current transformer, A/D modules, D/A modules and given value of current isolation amplification
Device is integrated on same circuit board.Microprocessor and acquisition chip, A/D conversion chips, driving circuit etc. are integrated in one piece to open
Send out plate on, can reduction system volume, realize system compact, reduction system volume as far as possible is to meet entirety on space structure
Space layout such as realizes embedded system, and embedded processing systems are the general name of hardware circuit and software systems herein.It is wherein hard
Part circuit includes mainly microprocessor, analogue signal acquisition circuit, A/D conversion chips, H-bridge drive circuit etc..Software systems base
It develops, runs among microprocessor, communication and control for completing microprocessor and other companion chips in embedded platform
Work processed.
Wherein, the temperature sensor is multiple uniformly distributed or is distributed in by predetermined rule multiple around optical crystal.
Multipoint mode temperature acquisition simultaneously presses certain regularity of distribution mounting temperature sensor around optical crystal, by all temperature sensing
The collected mean temperature approximation of device is as optical crystal temperature.
Embodiment three
As one of specific implementation, the microprocessor is microcontroller, further includes and the microcontroller
Communicate the human-computer interaction screen or PC machine of connection.PC machine is responsible for the configuration and management of each unit, the processing that processing terminal uploads
As a result, simultaneously recording temperature variations in real time.And control result is transmitted to the ends PC by serial communication and is recorded in real time,
Experimental data can be converted output, for further analysis and processing by the form of intuitive formation curve figure in a variety of formats at any time.
Example IV
When being worked using solid state laser, is acquired in real time using apparatus of the present invention, analyze, control solid state laser
For crystal inside temperature change to improve its power stability, application places are the industrial site using solid state laser.Tool
The implementation of body is：
1) circulating water cooling system is opened, coolant-temperature gage is stablized in the range of≤25 DEG C；
2) solid state laser is started to work, and optical crystal temperature gradually rises；Temperature sensor receives temperature change letter
Number and feed back to microcontroller,
3) temperature signal is analyzed and is handled in microcontroller, see collected optical crystal temperature signal and preset
It whether there is difference signal between temperature signal, the temperature for adjusting TEC according to the difference signal of generation is to increase also or drop
It is low, it keeps stablizing to control crystal temperature effect；When collected temperature signal is higher than preset temperature signals, microcontroller utilizes
PID control realizes outer shroud temperature feedback, generates PWM drive signal, and TEC starts to work to freeze to cool down to optical crystal.It is logical
The effective voltage for crossing the duty cycle adjustment driving circuit output for changing PWM, controls the size of TEC operating currents, it is made to start to make
It is cold；
4) since TEC driving circuits can generate temperature difference at cold and hot both ends at work, to generate thermoelectric in TEC
The value of kinetic potential, the electromotive force changes with temperature, so depositing for the inverse electromotive force can influence the both ends TEC during the work time
Operating voltage may result in TEC refrigerating capacitys and desired value in this way to influence its size of current and generate deviation, influence system
Control accuracy, so at this point, inner ring current feedback start to work, to control voltage V compensate, effectively temperature can be inhibited to become
Change the influence to TEC voltages.
5) feedback signal makes the temperature wireless of optical crystal close to preset value to the adjusting of TEC temperature and keeps stable,
Realize high-precision temperature control.
6) the real-time output temperature change curve in the ends PC monitors solid state laser temperature change, to improve its power stability,
Increase functional reliability.
Realize that temperature control, the corresponding controlled quentity controlled variable of generation are output in TEC driving circuits after being converted into PWM, make by PID
It is heated or refrigeration；Current control is realized by PI, calculates offset voltage Δ V and the control voltage V at the both ends TEC is mended
It repays, to control the driving TEC work of its electric current, crystal temperature effect is made accurately to stablize in set temperature.
In conclusion beneficial effects of the present invention are：
1, traditional single air-cooled, water-cooling system is replaced using TEC and circulating water cooling system compound form, it can be more
It timely realizes to the feedback of temperature, eliminates hysteresis quality.And TEC volume smallers can without slide unit and operating noise
Height is required by property, it is easy to carry, space is saved to a certain extent.
2, using temperature-current double closed-loop control system, temperature controlled precision is greatly improved, interference is eliminated and misses
Difference.
3, be based on thermoelectric cooling (TEC) precision temperature control method, can quickly and effectively realize temperature monitoring and
Control, due to TEC itself temperature control features, temperature feedback is timely, sluggish small, meets wanting for solid state laser temperature realtime control
Seek
4, embedded temperature acquisition, processing module integrate in terminal, facilitate installation and arrangement.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in definition graph.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" can include both upper and lower orientation.Device, which can be positioned in other ways, (to be rotated by 90 ° or position
In other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal
Fall into protection scope of the present invention.
Claims (10)
1. a kind of power stability type solid state laser, which is characterized in that include the pedestal of circulation cooling water in it, it is solid to install
The heat conduction of the optical crystal of the fixed solid state laser carries seat, is arranged and carries the temperature sensor on seat in heat conduction, and setting is being led
The semiconductor refrigerating unit and control unit that heat is carried between seat and pedestal and driven by Bipolar current driver,
The control unit includes the microprocessor and current transformer with temperature sensor communication connection, described
Current transformer to acquire the electric current output of the Bipolar current driver current, the microprocessor with it is described
Bipolar current driver controllably connects.
2. a kind of power stability type solid state laser according to claim 1, it is characterised in that：The heat conduction carries seat
It is copper.
3. a kind of power stability type solid state laser according to claim 1, it is characterised in that：The heat conduction carries seat
Cavate or platform-type structure.
4. a kind of power stability type solid state laser according to claim 1, it is characterised in that：The temperature sensor
Including temperature sensing unit, it is formed with to position the armouring screw of the hollow cavity of the temperature sensing unit, the armour
Dress screw carries seat with the heat conduction and is threadedly coupled.
5. a kind of power stability type solid state laser according to claim 4, it is characterised in that：The temperature sensor
For thermal resistance sensor, the thermal resistance sensor is connected to microprocessor after signal amplifier and A/D modules, and described is micro-
The output of processor is connected to the Bipolar current driver through D/A modules and given value of current isolated amplifier.
6. a kind of power stability type solid state laser according to claim 5, it is characterised in that：The microprocessor,
Current transformer, A/D modules, D/A modules and given value of current isolated amplifier are integrated on same circuit board.
7. a kind of power stability type solid state laser according to claim 1, it is characterised in that：The temperature sensor
It is multiple uniformly distributed or be distributed in by predetermined rule multiple around optical crystal.
8. a kind of power stability type solid state laser according to claim 1, it is characterised in that：The microprocessor is
Microcontroller.
9. a kind of power stability type solid state laser according to claim 8, it is characterised in that：Further include and the list
The human-computer interaction screen or PC machine, the semiconductor chilling plate of piece machine communication connection are driven by H bridges.
10. a kind of control method of the power stability type solid state laser as described in claim any one of 1-9, it is characterised in that：
Include the following steps,
1) circulating water cooling system is opened, control coolant-temperature gage is stablized in the range of≤25 DEG C；
2) solid state laser is started to work, and optical crystal temperature gradually rises；Temperature sensor receives temperature change signal simultaneously
Microcontroller is fed back to,
3) temperature signal is analyzed and is handled in microcontroller, when collected temperature signal is higher than preset temperature signals
When, change the effective voltage of the duty cycle adjustment driving circuit output of PWM using PID control, controls the big of TEC operating currents
It is small, make it start to freeze；
4) practical TEC working current values are acquired and are compared with the expection TEC operating currents precomputed, are transported through PI algorithms
Certain controlling increment is obtained after calculation to compensate TEC operating voltages, to make TEC be operated under prospective current, realizes essence
Accurate temperature control.
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| CN201810893029.5A CN108666856A (en) | 2018-08-07 | 2018-08-07 | Power stability type solid state laser and control method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510058A (en) * | 2018-12-21 | 2019-03-22 | 哈尔滨工程大学 | The erbium-doped super-fluorescent optical fiber source and circuit that mean wavelength is positively correlated with temperature |
| CN111338403A (en) * | 2020-03-17 | 2020-06-26 | 无锡雷利电子控制技术有限公司 | Control method and control system of PTC heating device |
| CN111509551A (en) * | 2020-03-27 | 2020-08-07 | 中国科学院西安光学精密机械研究所 | Method for realizing stable output of laser and laser system |
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| CN111930161A (en) * | 2020-06-12 | 2020-11-13 | 杭州奥创光子技术有限公司 | Simulation control method and system for laser |
| CN112904913A (en) * | 2021-01-18 | 2021-06-04 | 北京理工大学重庆创新中心 | Liquid crystal device temperature control system and temperature control method |
| CN113031674A (en) * | 2021-02-02 | 2021-06-25 | 厦门大学 | Thermal cycle temperature control system based on electric refrigeration technology |
| CN113568449A (en) * | 2021-07-27 | 2021-10-29 | 中国科学院长春光学精密机械与物理研究所 | Semiconductor vacuum deep refrigeration full-bridge control circuit of large target surface detector |
| CN113778148A (en) * | 2021-08-16 | 2021-12-10 | 苏州通富超威半导体有限公司 | Temperature control system |
| CN113885412A (en) * | 2021-12-08 | 2022-01-04 | 西安奇芯光电科技有限公司 | Double closed-loop control structure for realizing stable output of laser and MRR |
| CN115218532A (en) * | 2021-04-14 | 2022-10-21 | 山东华光光电子股份有限公司 | Temperature control system of high-power optical fiber coupling semiconductor laser and use method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817850A (en) * | 2017-12-05 | 2018-03-20 | 苏州昊通仪器科技有限公司 | PCR instrument temperature control system |
| CN208423445U (en) * | 2018-08-07 | 2019-01-22 | 核工业理化工程研究院 | Power stability type solid state laser |
-
2018
- 2018-08-07 CN CN201810893029.5A patent/CN108666856A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817850A (en) * | 2017-12-05 | 2018-03-20 | 苏州昊通仪器科技有限公司 | PCR instrument temperature control system |
| CN208423445U (en) * | 2018-08-07 | 2019-01-22 | 核工业理化工程研究院 | Power stability type solid state laser |
Non-Patent Citations (1)
| Title |
|---|
| 朱均超等: "高精度大范围的光学晶体温度控制***" * |
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| CN109510058A (en) * | 2018-12-21 | 2019-03-22 | 哈尔滨工程大学 | The erbium-doped super-fluorescent optical fiber source and circuit that mean wavelength is positively correlated with temperature |
| CN111338403A (en) * | 2020-03-17 | 2020-06-26 | 无锡雷利电子控制技术有限公司 | Control method and control system of PTC heating device |
| CN111509551B (en) * | 2020-03-27 | 2021-07-27 | 中国科学院西安光学精密机械研究所 | Method for realizing stable output of laser and laser system |
| CN111509551A (en) * | 2020-03-27 | 2020-08-07 | 中国科学院西安光学精密机械研究所 | Method for realizing stable output of laser and laser system |
| CN111930161B (en) * | 2020-06-12 | 2021-10-15 | 杭州奥创光子技术有限公司 | Simulation control method and system for laser |
| CN111930161A (en) * | 2020-06-12 | 2020-11-13 | 杭州奥创光子技术有限公司 | Simulation control method and system for laser |
| CN111857205A (en) * | 2020-08-03 | 2020-10-30 | 中冶南方都市环保工程技术股份有限公司 | Method, device and system for controlling oil temperature of lubricating oil station |
| CN112904913A (en) * | 2021-01-18 | 2021-06-04 | 北京理工大学重庆创新中心 | Liquid crystal device temperature control system and temperature control method |
| CN113031674A (en) * | 2021-02-02 | 2021-06-25 | 厦门大学 | Thermal cycle temperature control system based on electric refrigeration technology |
| CN115218532A (en) * | 2021-04-14 | 2022-10-21 | 山东华光光电子股份有限公司 | Temperature control system of high-power optical fiber coupling semiconductor laser and use method thereof |
| CN113568449A (en) * | 2021-07-27 | 2021-10-29 | 中国科学院长春光学精密机械与物理研究所 | Semiconductor vacuum deep refrigeration full-bridge control circuit of large target surface detector |
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