CN207625061U - High efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply and laser - Google Patents
High efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply and laser Download PDFInfo
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- CN207625061U CN207625061U CN201721474180.2U CN201721474180U CN207625061U CN 207625061 U CN207625061 U CN 207625061U CN 201721474180 U CN201721474180 U CN 201721474180U CN 207625061 U CN207625061 U CN 207625061U
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- 238000005070 sampling Methods 0.000 claims description 16
- 230000003321 amplification Effects 0.000 claims description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 15
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
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- 239000004065 semiconductor Substances 0.000 claims description 3
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- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000009977 dual effect Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 description 4
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- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
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Abstract
The utility model discloses a kind of high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply and laser, including cabinet, it is provided with the lateral partitions that left and right extends in the cabinet and is divided into former and later two chambers.Air-flow is driven to enter and to being radiated again into the region after the wind-cooling heat dissipatings such as master board and direct current supply module from right side and front side using cooling fan, dual flow path designs, compact Duct design is used in heat dissipation, so that air-cooled heat-radiation loop is small, save space, realize shorter heat dissipation wind path make it is distinguished and admirable to circuit shorten and improve radiating efficiency.
Description
Technical field
The utility model is related to solid state laser technical fields, more particularly to a kind of high efficiency and heat radiation formula acousto-optic Q modulation crystal
Driving power and laser.
Background technology
Spring lock just relatively difficult thing is carried out when the output of high-power laser in, main reason is that laser beam
With very strong directionality, the small heat height of hot spot can all generate heat to the long term device irradiation of blocking, damage.To realize to flat
The laser of equal power 100W/200W generally requires if the switch of high power solid green (light) laser controls while controlling two-way
It locks optical device such as acousto-optic Q modulation quartz crystal device to complete, this requires have to accurately control Laser output pulse width and export to have
The control power supply of nothing.
International market only has Gu Qi Xiusigu companies of Britain (GOOCH＆HOUSEGO) to produce two-way synchronized model acousto-optic at present
Q-switch driving power only provides 25W two-ways and 50W two-ways two, and technical barrier is arranged to the country, this is just constrained
High-power Q-switch laser is used to studies in China.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing in the prior art, and provide a kind of high efficiency and heat radiation formula sound
Light adjusting Q crystal driving power.
Technical solution is used by realize the purpose of this utility model：
A kind of high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply, including cabinet are provided with left and right in the cabinet and extend
Lateral partitions be divided into former and later two chambers, close to rear side chamber in be disposed with main control circuit from right to left
Plate, wind turbine and a final power amplifying circuit, master board is provided in the master control circuit board in up-down structure
Amplify and drive distributor with intermediate signal；There are two power-amplifier stage direct currents for setting from right to left in the chamber close to front side
Power supply module, wind turbine and a final power amplifying circuit, on the front side board and back side panel of cabinet corresponding with two chambers
It is respectively arranged with air holes.
The master board includes the crystal oscillating circuit for generating oscillator signal, generates the modulation of radiofrequency signal
Circuit and radiofrequency signal to be carried out to the primary signal amplifying circuit of primary amplification；
The described intermediate signal amplification and driving distributor are amplifying the radiofrequency signal and to be divided into two-way identical
Drive signal；
The two-way final power amplifying circuit drive signal described for corresponding amplification simultaneously carries out power combing；
Further include being detected with one-to-one two output modules of final power amplifying circuit, including frequency-selecting unit and output
Unit and the radio-frequency cable for being connected to acousto-optic Q modulation crystal.
The final power amplifying circuit includes MOS push-pull power amplifiers circuit and power combing transformer.
The amplification of intermediate signal and driving distributor includes coupling transformer, multiple metal-oxide-semiconductor power amplifiers being arranged in parallel
Circuit.
The frequency-selecting unit is LC resonance network, and the output detection unit is double nickel zinc magnet rings, the output
Detection unit is connected with the master board communication.
The output of one of LC resonance network is using double nickel zinc magnet ring induction samplings 30：1 sampling is sensitive with output abnormality
When rapidly enter guard mode, the output of another LC resonance network is using double nickel zinc magnet rings induction samplings 30：2 samplings, sampling
For output power for feedback control driving stage drive amplitude size to adjust automatically driving power, control output power is constant.
The modulation module includes TTL control modules, and the TTL control modules include,
Signal conversion unit, receive TTL control signal go forward side by side line level conversion；
Trigger module generates the pulse of controllable pulse width according to transformed level；
Frequency mixing module, the pulse to be mixed into radiofrequency signal and is input to primary signal amplifying circuit.
The modulation module includes inner modulation unit and tunable radio frequency shutdown pulsewidth potentiometer, the inner modulation
The controlled generation square-wave signal of unit is for impulse modulation radiofrequency signal.
It further include the temperature sensor being arranged in the cabinet.
It is in series with solid-state relay on its internal input main line, the solid-state relay is controllably connect with host computer.
Two-way 27MHZ, 55 watts of radiofrequency sinusoidal wave output are generated, matched load is characterized 50 ohm of impedance.
A kind of laser generator, including two acousto-optic Q modulation crystal being arranged in the resonant cavity of the laser generator,
Driving power described in one, the radio-frequency cable correspond to the access acousto-optic Q modulation crystal.
The laser generator is green light solid laser, high-power solid infrared laser or frequency double laser.
Compared with prior art, the utility model has the beneficial effects that：
Entered from right side and front side using cooling fan drive air-flow and air-cooled to master board and direct current supply module etc.
It is radiated again into the region after heat dissipation, dual flow path design uses compact Duct design so that wind in heat dissipation
Cold heat-radiation loop is small, saves space, realize shorter heat dissipation wind path make it is distinguished and admirable to circuit shorten and improve radiating efficiency.
In addition it is that radiator improves space utilization rate using up-down structure lower part in driving circuit section, eliminates front panel and open
Design is closed, unified setting is realized, reduces switch interface extended space.
Description of the drawings
Fig. 1 show the structural schematic diagram of the high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply of the utility model；
Fig. 2 show the explosion state structural schematic diagram of cabinet.
Specific implementation mode
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
As shown, the high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply of the utility model includes cabinet 1, the institute
The cabinet stated includes the shell 10 that box four sides opens, and back side panel, front side board, 2 and of left plate being fixedly connected with the casing
Right plate 3 is correspondingly arranged on air holes respectively on the left plate, right plate and front side board of the cabinet.The back side panel
On be provided with input and output connecting terminal, external controlled interface, back air holes and power grid input port, the front side board of the cabinet
On be provided with indicator light and operational and controlled key button, such as power switch.
It is provided with the lateral partitions 11 that left and right extends in the cabinet and is divided into former and later two chambers, close to rear side
Remote control module, master board 30, wind turbine 31 and a final power amplifying circuit are disposed in the chamber of plate from right to left
32 (final power amplifying stages), the master board and intermediate signal amplification and driving distributor are arranged in up-down structure in master
In control circuit board, from left to right it is arranged in the chamber close to front side board there are two power-amplifier stage direct current supply module 33,
Wind turbine 34 and final power amplifying circuit 35 are respectively arranged with air holes on left plate corresponding with two chambers and right plate,
Be provided with direct current supply module 4 in the chamber simultaneously, direct current supply module be master control circuit board and intermediate signal amplification and
Distributor power supply is driven, power supply module and master control borad etc. are isolated, reduction electromagnetic pollution.
Entered from right side and front side using cooling fan drive air-flow and air-cooled to master board and direct current supply module etc.
It is radiated again into the region after heat dissipation, dual flow path design uses compact Duct design so that wind in heat dissipation
Cold heat-radiation loop is small, saves space, realize shorter heat dissipation wind path make it is distinguished and admirable to circuit shorten and improve radiating efficiency.
In addition it is that radiator improves space utilization rate using up-down structure lower part in driving circuit section, eliminates front panel and open
Design is closed, unified setting is realized, reduces switch interface extended space.
Meanwhile be in series with solid-state relay on the inside input main line of the driving power, the solid-state relay with it is upper
Position machine controllably connects.Input terminal controls main circuit power supply, the high electricity of host computer DC low-voltage control exchange using solid-state relay
Pressure, low pressure control high pressure, remote on-off.Driving power has the function of PC control start and close, is achieved in, and host computer is given
Controlling the main electricity of level control input, whether there is or not the unlatchings and stopping of realizing control driving power.
Specifically, the master board includes the crystal oscillating circuit for generating oscillator signal, generates radiofrequency signal
Modulation circuit and radiofrequency signal to be carried out to the primary signal amplifying circuit of primary amplification, such as transistor；
The described intermediate signal amplification and driving distributor are amplifying the radiofrequency signal and to be divided into two-way identical
Drive signal；
The two-way final power amplifying circuit drive signal described for corresponding amplification simultaneously carries out power combing；
Further include being detected with one-to-one two output modules of final power amplifying circuit, including frequency-selecting unit and output
Unit and the radio-frequency cable for being connected to acousto-optic Q modulation crystal.
The amplification of intermediate signal and driving distributor includes coupling transformer, multiple metal-oxide-semiconductor power amplifiers being arranged in parallel
Circuit, wherein the final power amplifying circuit includes MOS push-pull power amplifiers circuit and power combing transformer.The choosing
Frequency unit is LC resonance network, and the output detection unit is double nickel zinc magnet rings, the output detection unit and described
Master board communication connection.
The driving power of the utility model has two-way synchronism output characteristic, and two acousto-optic Q-switchings can be driven to carry out simultaneously
Laser switch controls, and is amplified using multiple power levels and is arranged, fever is small, also small to cooling requirements, low in energy consumption, has in long-time service
It ensures, there is corresponding device deposit in all very simple later period maintenance more new capital of installation maintenance.
Specifically, the output detection unit includes and the feedback signal processing module communication link in master board
Power using template and reflection signaling module, the output of one of LC resonance network is using double nickel zinc magnet rings induction samplings
30：1 sampling is sensitive to rapidly enter guard mode when output abnormality, and the output of another LC resonance network is using double nickel zinc magnet rings
Induction sampling 30：2 samplings, output power sampling is for feedback control driving stage drive amplitude size to which adjust automatically drives work(
Rate, control output power are constant.Output signal goes harmonic component by LC series resonant tanks, by adjusting adjustable capacitance control
The power of output harmonic wave processed keeps harmonic component minimum.The inductance for using Q values very high in LC resonance network (LC filter circuits)
And capacitance, pressure resistance are also very high, LC resonance adjusts the offset that resonance point may be implemented in C, has an impact to output power, benefit is body
Product is small, and filtering and amplitude limit carry out together, and adjustable range is small, and power points is accurate.
The signal of sampling is the radiofrequency signal of power amplifier grade end output, and mainly two effects one are comparison output reflections
Standing-wave ratio, one is sampling for exporting forward power, and sampled signal is used for the circuit protection and close-loop power control of itself.
As one of specific embodiment, this driving power generates 27MHZ letters using 27MHZ quartz oscillators
Number, after frequency-selective filtering, then this signal amplified by transistor amplifying circuit, then pass through coupling transformer and reach middle rank MOS
Tube power amplifying circuit is then divided into two groups of final stage MOS push-pull power amplifier circuits of two-way drive signal while driving and reaches power conjunction
At transformer, after by LC resonance network enter output monitoring modular, passed finally by 50 ohm of radio-frequency cable of characteristic impedance
Acousto-optic Q modulation switching device is transported to, Q power supplys generate two-way 27MHZ, the output of 55 watts of radiofrequency sinusoidal wave, and matched load is characterized resistance
Anti- 50 ohm of electric acousto-optic Q-switching crystal.The power supply of this driving power logic chip is that+5V powers, intergrade drive amplification circuit
Power supply is+12V, and final stage power amplifier DC offset voltage is+48V, 2.5A.
This Q driving power inputs for alternating current 220V, exports the two-way radiofrequency signal for synchronization, and it is 27MHZ to be exported per road, and 55
Watt, PC control switching on and shutting down are subjected to, error condition can be sent out, are subjected to host computer setting signal output, output work
Rate is adjustable +/- 20%.2U standard PC cases are used simultaneously.Fever is cooling to use internal forced air cooling, overheating protection temperature to be taken the photograph for 70
Family name's degree.There are one local switching on and shutting down to switch for front panel tool, a 1 road load faulty indicator light, a 2 road load faulty instructions
Lamp, an overheating indicator lamp, an internal signal control indicator light, and an external signal controls indicator light.Rear panel has interior
Control, external control switching switch.With one, tunable radio frequency shutdown pulsewidth potentiometer, adjustable output radiofrequency signal is receiving shutdown
The length of turn-off time after signal.
Wherein, to realize remote control, the modulation module includes TTL control modules, the TTL control module packets
It includes,
Signal conversion unit, receive TTL control signal go forward side by side line level conversion；
Trigger module generates the pulse of controllable pulse width, such as pulse trigger according to transformed level；
Frequency mixing module, the pulse to be mixed into oscillator signal and is input to primary signal amplifying circuit.It is external
The signal conversion module that the TTL control signals of input reach power source internal carries out level conversion, and trigger module is then added, triggers
The pulse of generation controllable pulse width is added to frequency mixing module and control signal is mixed into rf wave, then subsequent stages is pushed to put
Big circuit completes final output requirement.
By the TTL control modules, make the driving power that there is external Transistor-Transistor Logic level control function, can be calculated by outside
Machine sends signal level control power supply and runs and then control laser output, which can realize that a synchronizing signal comes same time control
The two-way Q driving powers for making the iris ring section of more laser systems carry out the synchronization laser release of multiple lasers.I.e. every double
One laser of road power supply control is that all the way, multiple such system parallel connections can be supported to work together.
Preferably, the modulation module further includes inner modulation unit and tunable radio frequency turns off pulsewidth potentiometer, described
The controlled generation square-wave signal of inner modulation unit for impulse modulation radiofrequency signal.Inner modulation unit has inner modulation
Signal generates function, internal can generate 1-100KHZ square-wave signals and be used for impulse modulation radiofrequency signal, sets this signal and is equal to and sets
Determine laser opening time, laser output frequency.The adjustable output radiofrequency signal of tunable radio frequency shutdown pulsewidth potentiometer is receiving
The length of turn-off time after door signal.
To realize the switching of two kinds of control models, it is additionally provided with internal-external locus of control switching switch, refers to the production of inner modulation unit
Raw modulated signal is effectively or external input is that is, the switching of the modulation effective two states of pulse of Transistor-Transistor Logic level switchs, this is inside and outside
Control switching switch is to switch to realize by contact change-over.
Further, further include cabinet, it is small such as standard 2U restocking cabinet shapes, it is provided in the cabinet
Temperature sensor.This Q driving power has fault alarm output function, realizes that overheat is more than in machine by status monitoring circuit
At 70 degrees Celsius or when output radiofrequency signal is mismatched with load, stop power supply output, and be provided out alarm signal.
The utility model further simultaneously discloses a kind of laser generator comprising is arranged in the humorous of the laser generator
Two acousto-optic Q modulation crystal of intracavitary of shaking, the driving power described in one, the radio-frequency cable correspond to the access acousto-optic tune
Q crystal.Between two acousto-optic Q modulation crystal placement position earthquake sources and total reflection eyeglass, it can effectively separate laser concussion.
General layout is carried out at the same time using XY both directions, i.e., one laterally fixed, and one vertical fixed, but it must be ensured that two
The clear aperature of a crystal is concatenated.
The laser generator high-power laser in being, such as green light solid laser, high-power solid are infrared sharp
Light device or frequency double laser.The synchronous of two-way is opened, synchronous release all requires to be moved so embodying two-way synchronous sound, light tune Q
The necessity of device.This mounting means is compact-sized, is easy to radiation water channel installation, improves lock light efficiency.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (13)
1. a kind of high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply, which is characterized in that including cabinet, setting in the cabinet
There are the lateral partitions that left and right extends to be divided into former and later two chambers, is disposed with from right to left in the chamber close to rear side
Master control circuit board, wind turbine and a final power amplifying circuit are arranged in the master control circuit board in up-down structure
There are master board and intermediate signal amplification and driving distributor；There are two power for setting from right to left in the chamber close to front side
Amplifying stage direct current supply module, wind turbine and a final power amplifying circuit, in the front side board of cabinet corresponding with two chambers
With air holes is respectively arranged on back side panel.
2. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as described in claim 1, which is characterized in that the main control
Plate includes the crystal oscillating circuit for generating oscillator signal, generates the modulation module of radiofrequency signal and to by radiofrequency signal
Carry out the primary signal amplifying circuit of primary amplification；
The intermediate signal amplifies and drives distributor to amplify the radiofrequency signal and be divided into the identical driving of two-way
Signal；
The two-way final power amplifying circuit drive signal described for corresponding amplification simultaneously carries out power combing；
Further include and one-to-one two output modules of final power amplifying circuit, including frequency-selecting unit and output detection unit
And it is connected to the radio-frequency cable of acousto-optic Q modulation crystal.
3. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as claimed in claim 2, which is characterized in that the final stage work(
Rate amplifying circuit includes MOS push-pull power amplifiers circuit and power combing transformer.
4. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as claimed in claim 2, which is characterized in that the middle rank letter
Number amplification and driving distributor include coupling transformer, multiple metal-oxide-semiconductor power amplifiers being arranged in parallel.
5. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as claimed in claim 2, which is characterized in that the frequency-selecting list
Member is LC resonance network, and the output detection unit is double nickel zinc magnet rings, the output detection unit and the master control
Making sheet communication connection.
6. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as claimed in claim 5, which is characterized in that one of LC is humorous
The output of vibrating network is using double nickel zinc magnet ring induction samplings 30：1 sampling is sensitive to rapidly enter guard mode when output abnormality, separately
The output of one LC resonance network is using double nickel zinc magnet ring induction samplings 30：2 samplings, sampled output power drive for feedback control
For dynamic grade drive amplitude size to adjust automatically driving power, control output power is constant.
7. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as claimed in claim 2, which is characterized in that the modulation mould
Block includes TTL control modules, and the TTL control modules include,
Signal conversion unit, receive TTL control signal go forward side by side line level conversion；
Trigger module generates the pulse of controllable pulse width according to transformed level；
Frequency mixing module, the pulse to be mixed into radiofrequency signal and is input to primary signal amplifying circuit.
8. the high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as described in claim 2 or 7, which is characterized in that the modulation
Module includes inner modulation unit and tunable radio frequency shutdown pulsewidth potentiometer, the controlled generation square wave letter of the inner modulation unit
Number for impulse modulation radiofrequency signal.
9. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as described in claim 1, which is characterized in that further include that setting exists
Temperature sensor in the cabinet.
10. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as described in claim 1, which is characterized in that its internal input master
Solid-state relay is in series on line, the solid-state relay is controllably connect with host computer.
11. high efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply as described in claim 1, which is characterized in that generate two-way
27MHZ, 55 watts of radiofrequency sinusoidal wave output, matched load are characterized 50 ohm of impedance.
12. a kind of laser generator, which is characterized in that including two sound being arranged in the resonant cavity of the laser generator
Light adjusting Q crystal, such as claim 1-10 any one of them driving power, radio-frequency cable correspond to the access acousto-optic tune
Q crystal.
13. laser generator as claimed in claim 12, which is characterized in that the laser generator is green light Solid State Laser
Device, high-power solid infrared laser or frequency double laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721474180.2U CN207625061U (en) | 2017-11-07 | 2017-11-07 | High efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply and laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721474180.2U CN207625061U (en) | 2017-11-07 | 2017-11-07 | High efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply and laser |
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| Publication Number | Publication Date |
|---|---|
| CN207625061U true CN207625061U (en) | 2018-07-17 |
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ID=62827946
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721474180.2U Withdrawn - After Issue CN207625061U (en) | 2017-11-07 | 2017-11-07 | High efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply and laser |
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| CN (1) | CN207625061U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755848A (en) * | 2017-11-07 | 2019-05-14 | 核工业理化工程研究院 | High efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply and laser |
| CN115395350A (en) * | 2022-04-22 | 2022-11-25 | 成都沃达惠康科技股份有限公司 | Laser emission air-cooled component and high-efficiency endurance portable laser blood sampling instrument |
-
2017
- 2017-11-07 CN CN201721474180.2U patent/CN207625061U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755848A (en) * | 2017-11-07 | 2019-05-14 | 核工业理化工程研究院 | High efficiency and heat radiation formula acousto-optic Q modulation crystal-driven power supply and laser |
| CN109755848B (en) * | 2017-11-07 | 2024-04-19 | 核工业理化工程研究院 | High-efficiency heat-dissipation type acousto-optic Q-switched crystal driving power supply and laser |
| CN115395350A (en) * | 2022-04-22 | 2022-11-25 | 成都沃达惠康科技股份有限公司 | Laser emission air-cooled component and high-efficiency endurance portable laser blood sampling instrument |
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