CN208781092U - A kind of temperature controlling box and femtosecond frequency comb of grading control - Google Patents
A kind of temperature controlling box and femtosecond frequency comb of grading control Download PDFInfo
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- CN208781092U CN208781092U CN201821492303.XU CN201821492303U CN208781092U CN 208781092 U CN208781092 U CN 208781092U CN 201821492303 U CN201821492303 U CN 201821492303U CN 208781092 U CN208781092 U CN 208781092U
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Abstract
The utility model discloses a kind of temperature controlling box of grading control and femtosecond frequency combs, including the fiber reel for coiled fiber and for the constant temperature box of loading fiber disk, constant temperature box is provided with second level temperature control loop, fiber reel is provided with first order temperature control loop, second level temperature control loop includes the second temperature measuring unit being set in constant temperature box and the second thermostat units that the temperature in constant temperature box is adjusted, and first order temperature control loop includes the first temperature measuring unit being set in fiber reel and the first thermostat units that the temperature in fiber reel is adjusted.The temperature controlling box and femtosecond frequency comb realize high-precision, high speed, the control of large-scale temperature by the temperature control mode of different stage, to improve the anti-interference ability of optical fiber.
Description
Technical field
The utility model relates to femtosecond frequency comb light source field, the temperature controlling box and femtosecond frequency of especially a kind of grading control
Comb.
Background technique
Femtosecond frequency comb belongs to a highly important branch of femto-second laser.Femtosecond frequency comb and traditional femtosecond laser
Device research emphasis is different.What traditional femto-second laser was studied focuses on that ultrashort superpower laser can be generated, it would be desirable to
It is enough that power as high as possible is generated in the smallest area, it has been widely used in manufacture field now.Femtosecond frequency comb
Research emphasis is the comb teeth-shaped characteristic presented in frequency domain using laser, no longer pursues the narrow spaces and high power in its time domain,
The core that it is studied is accurately to control the frequency and phase of ultrashort laser, is mainly used in spectroscopy, astronomy, survey
Measure the fields such as control technology, the information transmission technology.Femtosecond frequency has become the object of numerous focus of attention.Femtosecond frequency comb is with it
In high precision, the wide feature of high stability, spectral region generate in light clock, super steady microwave, large-scale dimension apart from high-acruracy survey,
Before the fields such as split-second precision Frequency Transfer, astronomical surveing, terahertz signal generation and control possess very wide application
Scape.Research with femtosecond frequency comb with gradually apply, each application field has the precision of femtosecond frequency comb and its stability
Higher requirement.
Optical fiber laser thermal expansion coefficient is high, and ambient temperature variation and vibration can all lead to resonant cavity in optical fiber laser
Chamber is long to occur drift and shake, to obtain the femto-second laser pulse of stable time interval, need to temperature change and mechanical oscillation
Caused change of cavity length compensates, and the chamber of stable resonator is long.In order to be in resonant cavity in stable environment, traditional is done
Method is that resonant cavity is placed in incubator.The effect of incubator is to provide steady temperature, guarantees optical fiber work in isoperibol
Make, so that fiber lengths be made to keep stablizing, and then obtains stable repetition rate.But the calorstat temperature response time is long, control
Accuracy is low, and anti-interference ability is relatively weak.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of temperature controlling box of grading control and
Femtosecond frequency comb realizes high-precision, high speed, the control of large-scale temperature by the temperature control mode of different stage, from
And improve the anti-interference ability of optical fiber.
The technical solution adopted by the utility model to solve the problem is as follows:
In a first aspect, utility model embodiment provides a kind of temperature controlling box of grading control, including for coiled fiber
Fiber reel and constant temperature box for loading fiber disk, constant temperature box are provided with second level temperature control loop, and fiber reel is provided with the first order
Temperature control loop, second level temperature control loop include the second temperature measuring unit being set in constant temperature box and carry out to the temperature in constant temperature box
The second thermostat units adjusted, first order temperature control loop include the first temperature measuring unit being set in fiber reel and in fiber reel
The first thermostat units for being adjusted of temperature.
Further, fiber reel includes cooperate the optical fiber disk chassis and fiber reel upper cover of installation, among optical fiber disk chassis
It is provided with the protrusion convenient for coiled fiber.
Further, the first thermostat units include the first semiconductor cooler, and the first semiconductor cooler is set to fiber reel
Lateral surface.
Further, the first thermostat units further include for preventing the first semiconductor cooler to be displaced or because pressure is excessive
And leading to the first dottle pin of damage and the cooling fin for accelerating heat conduction, the fitting of the first dottle pin is set to optical fiber disk chassis
Outside bottom surface, the first dottle pin, the first semiconductor cooler and cooling fin are cascading.
Further, the second thermostat units include the second semiconductor cooler, and the second semiconductor cooler is set to constant temperature box
Lateral surface.
Further, the second thermostat units further include for preventing from causing the second semiconductor cooler to damage because of hitting
Bad the second dottle pin and pressing plate for accelerating heat conduction, the second dottle pin are bonded the lateral surface for being set to constant temperature box, second every
Pad, the second semiconductor cooler and pressing plate are cascading.
It further, further include incubation chamber for installing constant temperature box, the medial surface of incubation chamber abuts to stablize with pressing plate
The setting of constant temperature box.
Further, the gap between constant temperature box and incubation chamber has been filled with heat insulation foam.
Further, the first temperature measuring unit and the second temperature measuring unit include thermistor.
Second aspect, the utility model embodiment additionally provide a kind of femtosecond frequency comb, including above-mentioned temperature controlling box and use
In the controller communicated to connect with temperature controlling box.
The one or more technical solutions provided in the utility model, at least have the following technical effect that or advantage: packet
The second level temperature control loop for including the second temperature measuring unit and the second thermostat units can carry out on a large scale the temperature inside constant temperature box
Adjusting, and the first order temperature control loop including the first temperature measuring unit and the first thermostat units can be to the temperature inside fiber reel
Carry out high-precision, high speed adjusting, therefore, realized by the temperature control mode with different stage high-precision, at high speed,
Large-scale temperature control prevents temperature from sending out so as to make the optical fiber inside fiber reel be in stable temperature environment
Changing and cause the length of optical fiber to change, to improve the anti-interference ability of optical fiber, ensure that the steady of repetition rate
It is fixed to obtain.
Detailed description of the invention
The utility model is described in further detail with example with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of internal structure of temperature controlling box in one embodiment of the utility model；
Fig. 2 is schematic diagram when constant temperature box is installed on incubation chamber in another embodiment of the utility model；
Fig. 3 is schematic diagram when fiber reel is installed on constant temperature box in another embodiment of the utility model；
Fig. 4 is the schematic rear view of fiber reel in another embodiment of the utility model.
Specific embodiment
Traditional temperature controlling box generally only only one box body, and be used only one group of thermistor and semiconductor cooler into
Trip temperature control, this control mode is relatively easy, and temperature regulating range is larger, but accuracy is low, and control speed is slow, Bu Nengman
Sufficient femtosecond frequency comb is to temperature controlled demand.
Based on this, the utility model provides the temperature controlling box and femtosecond frequency comb of a kind of grading control, in the temperature controlling box,
Second level temperature control loop including the second temperature measuring unit and the second thermostat units 220 can to the temperature inside constant temperature box 200 into
Row is adjusted on a large scale, and the first order temperature control loop including the first temperature measuring unit and the first thermostat units 120 can be to optical fiber
Temperature inside disk 100 carries out the adjusting of high-precision, high speed, therefore, by the temperature control mode with different stage come real
Now high-precision, high speed, the control of large-scale temperature, so as to keep the optical fiber inside fiber reel 100 stable
Temperature environment prevents temperature from changing and the length of optical fiber is caused to change, so that the anti-interference ability of optical fiber is improved,
It ensure that stablizing for repetition rate obtains.
With reference to the accompanying drawing, the utility model embodiment is further elaborated.
Referring to Fig.1, one embodiment of the utility model provides a kind of temperature controlling box of grading control, including for coiling
The fiber reel 100 of optical fiber and constant temperature box 200 for loading fiber disk 100, constant temperature box 200 are provided with second level temperature control loop,
Fiber reel 100 is provided with first order temperature control loop, and second level temperature control loop includes the second thermometric list being set in constant temperature box 200
Member and to the second thermostat units 220 that the temperature in constant temperature box 200 is adjusted, first order temperature control loop includes being set to optical fiber
The first temperature measuring unit in disk 100 and the first thermostat units 120 that the temperature in fiber reel 100 is adjusted.
In the present embodiment, temperature controlling box can use two-stage friction speed, different accuracy, not homotype according to the needs of use
The temperature control mode enclosed.Preferably, fiber reel 100 is mounted in constant temperature box 200 by copper post, effectively optical fiber can be made to keep
In stable coiled state.Constant temperature box 200 is preferably the cuboid constituted using aluminium sheet, and thickness is preferably 2mm, can be adjusted
And maintain temperature stable in box so that fiber reel 100 and the optical fiber in fiber reel 100 be at it is stable
In temperature environment.Temperature controlling box can be used cooperatively with the controller in peripheral hardware, to realize temperature controlled operating mode: making
Used time can first start second level temperature control loop, at this point, the second temperature measuring unit can detect the temperature in constant temperature box 200, and this
Temperature value sends controller to, and controller can then be compared the temperature value with preset temperature value, thus according to two
Difference between a temperature value controls the second thermostat units 220 and the inside of constant temperature box 200 is freezed or heated, to adjust
Temperature inside section constant temperature box 200 is allowed to keep balancing with preset temperature value；When the second level, temperature control loop makes in constant temperature box 200
When the temperature in portion is close to preset temperature value, second level temperature control loop can switch to first order temperature control loop, at this point, first surveys
Temperature in warm unit meeting detection fiber disk 100, and the temperature value is sent to controller, and controller then can be the temperature value
It is compared with preset temperature value, to control the first thermostat units 120 to optical fiber according to the difference between two temperature values
The inside of disk 100 is freezed or is heated, so that the temperature adjusted inside fiber reel 100 is allowed to keep with preset temperature value
It balances, environment temperature locating for further stable fiber prevents from causing the length of optical fiber to change since temperature changes
Become, to improve the anti-interference ability of optical fiber.
In the present embodiment, the first temperature measuring unit and the second temperature measuring unit can have different embodiments, for example, the
One temperature measuring unit and the second temperature measuring unit all can be thermistor, thermocouple etc. it is therein any one, preferably temperature-sensitive electricity
Resistance；And the first thermostat units 120 and the second thermostat units 220 can also have different embodiments, for example, the first temperature adjustment list
Member 120 and the second thermostat units 220 all can be semiconductor cooler, the combination etc. of heat-producing machine and refrigerator it is therein any one
Kind.
Further, referring to Fig. 3, based on the above embodiment, another embodiment of the utility model additionally provides a kind of point
The temperature controlling box of grade control, the temperature controlling box is other than including unit or device described in above-described embodiment, wherein fiber reel
100 include cooperate the optical fiber disk chassis 130 installed and fiber reel upper cover 140, is provided with and is convenient among optical fiber disk chassis 130
The protrusion of coiled fiber.
In the present embodiment, the temperature controlling box in addition to working principle and beneficial effect described in above-described embodiment it
Outside, further include following feature and the utility model has the advantages that optical fiber disk chassis 130 is preferentially made of aluminium, can effectively to heat into
Row quickly conduction.In addition, optical fiber disk chassis 130 can be formed rectangular-ambulatory-plane knot by the protrusion being set among optical fiber disk chassis 130
Structure, consequently facilitating being coiled optical fiber and preventing the form of optical fiber from changing.
In addition, in the present embodiment, raised medium position for Openworks shape or can be provided with through-hole, the first thermometric list
Member passes through the Openworks shape or through-hole is set among fiber reel 100, and the bottom of the first temperature measuring unit and optical fiber disk chassis 130
Face is concordant.
Further, referring to Fig. 4, based on the above embodiment, another embodiment of the utility model additionally provides a kind of point
The temperature controlling box of grade control, the temperature controlling box is other than including unit described in above-described embodiment or device, wherein first adjusts
Warm unit 120 includes the first semiconductor cooler, and the first semiconductor cooler is set to the lateral surface of fiber reel 100.
In the present embodiment, the temperature controlling box in addition to working principle and beneficial effect described in above-described embodiment it
It outside, further include following feature and the utility model has the advantages that the first semiconductor cooler can be realized under the effect of different current directions
Refrigeration or the function of heating, therefore, when the temperature detected by the first temperature measuring unit is lower than preset temperature, controller meeting
The first semiconductor cooler is driven to be in heating state；And when the temperature detected by the first temperature measuring unit is higher than preset temperature
When, controller can then change the current direction of the first semiconductor cooler of driving, so that the first semiconductor cooler be made to be in system
Cold state.Therefore, it is set to the first semiconductor cooler of 100 lateral surface of fiber reel, can accurately and efficiently adjust fiber reel
Temperature inside 100, thus environment temperature locating for stable fiber.
In the present embodiment, fiber reel upper cover 140 preferentially uses transparent acrylic board, can be convenient for in fiber reel
The problem of form of optical fiber among chassis 130 is observed, prevents optical fiber from dropping out；At this point, the first semiconductor cooler
It is set to the lateral surface of optical fiber disk chassis 130, and is arranged along the arranged direction of optical fiber, so as to accurately adjust optical fiber
Temperature inside disk 100.
Further, referring to Fig. 4, based on the above embodiment, another embodiment of the utility model additionally provides a kind of point
The temperature controlling box of grade control, the temperature controlling box is other than including unit described in above-described embodiment or device, wherein first adjusts
Warm unit 120 further include for prevent the first semiconductor cooler be displaced or because pressure is excessive cause damage first every
Pad 122 and the cooling fin 123 conducted for accelerating heat, the first dottle pin 122 are bonded the outside bottom for being set to optical fiber disk chassis 130
Face, the first dottle pin 122, the first semiconductor cooler and cooling fin 123 are cascading.
In the present embodiment, the temperature controlling box in addition to working principle and beneficial effect described in above-described embodiment it
Outside, include the case where following feature and the utility model has the advantages that when colliding, the first dottle pin 122 can be to the first semiconductor
Refrigerator plays the role of buffering, to avoid the problem that the first semiconductor cooler damages；When the first semiconductor refrigerating
When device is in refrigerating state, cooling fin 123 can speed up the conduct heat away of the first semiconductor cooler, to ensure that the first half
The good refrigeration effect of conductor refrigerator.
Further, referring to Fig. 2, based on the above embodiment, another embodiment of the utility model additionally provides a kind of point
The temperature controlling box of grade control, the temperature controlling box is other than including unit described in above-described embodiment or device, wherein second adjusts
Warm unit 220 includes the second semiconductor cooler, and the second semiconductor cooler is set to the lateral surface of constant temperature box 200.
In the present embodiment, the temperature controlling box in addition to working principle and beneficial effect described in above-described embodiment it
It outside, further include following feature and the utility model has the advantages that the second semiconductor cooler is respectively arranged at multiple lateral surfaces of constant temperature box 200
On, the second semiconductor cooler can realize the function of refrigeration or heating under the effect of different current directions, therefore,
When the temperature detected by the second temperature measuring unit is lower than preset temperature, controller can drive the second semiconductor cooler to be in
Heating state；And when the temperature detected by the second temperature measuring unit is higher than preset temperature, controller can then change driving the
The current direction of two semiconductor coolers, so that the second semiconductor cooler be made to be in refrigerating state.Therefore, it is set to constant temperature box
The second semiconductor cooler on 200 multiple lateral surfaces, can rapidly, on a large scale inside regulating thermostatic box 200
Temperature, thus environment temperature locating for stable fiber disk 100 and optical fiber.
Further, referring to Fig. 2, based on the above embodiment, another embodiment of the utility model additionally provides a kind of point
The temperature controlling box of grade control, the temperature controlling box is other than including unit described in above-described embodiment or device, wherein second adjusts
Warm unit 220 further includes 222 He of the second dottle pin for preventing from causing the second semiconductor cooler to be damaged because of hitting
For accelerating the pressing plate 223 of heat conduction, the second dottle pin 222, which is bonded, is set to the lateral surface of constant temperature box 200, the second dottle pin 222,
Second semiconductor cooler and pressing plate 223 are cascading.
In the present embodiment, the temperature controlling box in addition to working principle and beneficial effect described in above-described embodiment it
Outside, include the case where following feature and the utility model has the advantages that when colliding, the second dottle pin 222 can be to the second semiconductor
Refrigerator plays the role of buffering, to avoid the problem that the second semiconductor cooler damages；When the second semiconductor refrigerating
When device is in refrigerating state, pressing plate 223 can speed up the conduct heat away of the second semiconductor cooler, to ensure that the second half lead
The good refrigeration effect of chiller.
Further, referring to Fig.1, based on the above embodiment, another embodiment of the utility model additionally provides a kind of point
The temperature controlling box of grade control, the temperature controlling box further include being used for other than including unit described in above-described embodiment or device
The incubation chamber 300 of constant temperature box 200 is installed, the medial surface of incubation chamber 300 abuts to stablize setting for constant temperature box 200 with pressing plate 223
It sets.
In the present embodiment, the temperature controlling box in addition to working principle and beneficial effect described in above-described embodiment it
Outside, further include following feature and the utility model has the advantages that incubation chamber 300 is preferably the cuboid being made of aluminium sheet, thickness is preferably
4mm can effectively carry out the conduction of heat and prevent the external shock to constant temperature box 200.In addition, the medial surface of incubation chamber 300
It is abutted with pressing plate 223 to stablize the setting of constant temperature box 200, therefore under the action of incubation chamber 300, pressing plate 223 can also be risen
To the effect of fixed second half conductor refrigerator, so that the second semiconductor cooler be prevented to be subjected to displacement and influence to constant temperature box
200 temperature is adjusted.
Further, based on the above embodiment, another embodiment of the utility model additionally provides a kind of grading control
Temperature controlling box, the temperature controlling box is other than including unit described in above-described embodiment or device, wherein constant temperature box 200 and heat preservation
Gap between box 300 has been filled with heat insulation foam.
In the present embodiment, the temperature controlling box in addition to working principle and beneficial effect described in above-described embodiment it
Outside, further include following feature and the utility model has the advantages that prevent 200 inside of constant temperature box from carrying out heat exchange with external and influence constant temperature box
Temperature environment inside 200, preferably the external installation dimension of constant temperature box 200 be suitble to thermal insulation layer, the thermal insulation layer preferably every
Hot cotton, and heat insulation foam fills up the gap between constant temperature box 200 and incubation chamber 300, so as to play good insulation
Effect so that the inside of constant temperature box 200 is able to maintain that under stable temperature environment.
In addition, another embodiment of the utility model additionally provides a kind of femtosecond frequency comb, including any of the above-described embodiment
In temperature controlling box and controller for being communicated to connect with the temperature controlling box, the controller be used for being transmitted by the temperature controlling box
Temperature signal is handled, and to the temperature controlling box feedback control signal, so that the temperature controlling box is realized in above-described embodiment
Beneficial effect.
In the present embodiment, it is realized by the temperature control mode of two kinds of different stages in high precision, at high speed, on a large scale
Temperature control, wherein the accurate control to fiber optic temperature can be realized by first order temperature control loop, control precision is high,
Fast response time, control range are small；And large-scale temperature control then can be realized by second level temperature control loop.In conjunction with first
The collective effect of grade temperature control loop and second level temperature control loop, the present embodiment are particularly suitable at the repetition stabilization of femtosecond frequency comb
Reason, can not only realize the accurate control to temperature controlling box internal temperature, and have the effect of strong antijamming capability.
The femtosecond frequency comb of the present embodiment when in use, in addition to temperature controlled work described in above-described embodiment
Operation mode also has and stablizes the operating mode of repetition: when making optical fiber by second level temperature control loop and first order temperature control loop
When temperature and preset temperature value inside disk 100 keep balancing, the work of first order temperature control loop can be switched to stable repetition
Mode: controller is compared according to the repetition rate sended over by optical fiber with preset repetition rate, and utilizes two weights
Driving signal of the difference as the first semiconductor cooler and the second semiconductor cooler between complex frequency, to control to adjust
Temperature inside fiber reel 100, and then control the repetition rate of femtosecond frequency comb.When the repetition rate sended over by optical fiber is high
When preset repetition rate, illustrate the temperature drift inside fiber reel 100, so that the frequency values of repetition rate are past higher
Numerical value drift, at this point, controller can control the first semiconductor cooler respectively and the second semiconductor cooler is in refrigerating state,
To reduce the temperature inside fiber reel 100, so that the repetition rate and preset repetition rate phase one that are sended over by optical fiber
It causes；When the repetition rate sended over by optical fiber is lower than preset repetition rate, illustrate that the temperature inside fiber reel 100 is inclined
It is low, so that the frequency values of repetition rate drift about toward lower numerical value, at this point, controller can control the first semiconductor refrigerating respectively
Device and the second semiconductor cooler are in heating state, so that the temperature inside fiber reel 100 is increased, so that being transmitted across by optical fiber
The repetition rate come is consistent with preset repetition rate.Since the frequency values of repetition rate are higher, can rapidly control
Temperature processed, and have the characteristics that pinpoint accuracy, so as to reach the high-precision to fiber reel 100, high speed, on a large scale temperature
Degree control.
Therefore, the femtosecond frequency comb in the present embodiment, mainly there is operating mode below:
(1) 100 inner fiber of fiber reel temp-controled mode: is measured by the first temperature measuring unit and the second temperature measuring unit respectively
Temperature and constant temperature box 200 in environment temperature, which is fed back into controller, controller by measured temperature signal with
The temperature value of setting compares, and controls the work of the first semiconductor cooler and the second semiconductor cooler respectively using temperature signal
Make state；
(2) stablize repetition mode: being led by the repetition difference of femtosecond frequency comb as the first semiconductor cooler and the second half
Thus the driving signal of chiller controls the temperature inside fiber reel 100, and then controls the repetition rate of femtosecond frequency comb；
(3) temperature control and stable repetition common mode: to be sended over by optical fiber by temp-controled mode first
Repetition rate be near preset repetition rate, temp-controled mode is then switched to stable repetition mode, thus
The repetition rate sended over by optical fiber is stablized in preset repetition rate.
Be above to the utility model it is preferable implementation illustrated, but the utility model be not limited to it is above-mentioned
Embodiment, those skilled in the art can also make various be equal without departing from the spirit of the present invention
Deformation or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of temperature controlling box of grading control, it is characterised in that: including the fiber reel (100) for coiled fiber and for loading
The constant temperature box (200) of the fiber reel (100), the constant temperature box (200) are provided with second level temperature control loop, the fiber reel
(100) it is provided with first order temperature control loop, the second level temperature control loop includes second be set in the constant temperature box (200)
Temperature measuring unit and the second thermostat units (220) that the temperature in the constant temperature box (200) is adjusted, the first order temperature control
Circuit includes being set to the first temperature measuring unit in the fiber reel (100) and carrying out to the temperature in the fiber reel (100)
The first thermostat units (120) adjusted.
2. a kind of temperature controlling box of grading control according to claim 1, it is characterised in that: the fiber reel (100) includes
Cooperate the optical fiber disk chassis (130) installed and fiber reel upper cover (140), is provided among the optical fiber disk chassis (130)
Convenient for the protrusion of coiled fiber.
3. a kind of temperature controlling box of grading control according to claim 1 or 2, it is characterised in that: first thermostat units
It (120) include the first semiconductor cooler, first semiconductor cooler is set to the lateral surface of the fiber reel (100).
4. a kind of temperature controlling box of grading control according to claim 3, it is characterised in that: first thermostat units
(120) further include for prevent first semiconductor cooler be displaced or because pressure is excessive cause damage first every
Pad (122) and the cooling fin (123) conducted for accelerating heat, the first dottle pin (122) fitting are set to the fiber reel
The outside bottom surface on chassis (130), first dottle pin (122), the first semiconductor cooler and cooling fin (123) are stacked gradually and are set
It sets.
5. a kind of temperature controlling box of grading control according to claim 1, it is characterised in that: second thermostat units
It (220) include the second semiconductor cooler, second semiconductor cooler is set to the lateral surface of the constant temperature box (200).
6. a kind of temperature controlling box of grading control according to claim 5, it is characterised in that: second thermostat units
It (220) further include for preventing because hitting and the second dottle pin (222) for causing second semiconductor cooler to be damaged
With the pressing plate (223) for accelerating heat conduction, the second dottle pin (222) fitting is set to the outer of the constant temperature box (200)
Side, second dottle pin (222), the second semiconductor cooler and pressing plate (223) are cascading.
7. a kind of temperature controlling box of grading control according to claim 6, it is characterised in that: further include for installing the perseverance
The incubation chamber (300) of warm box (200), the medial surface of the incubation chamber (300) are abutted with the pressing plate (223) thus described in stable
The setting of constant temperature box (200).
8. a kind of temperature controlling box of grading control according to claim 7, it is characterised in that: the constant temperature box (200) and institute
The gap stated between incubation chamber (300) has been filled with heat insulation foam.
9. a kind of temperature controlling box of grading control according to claim 1, it is characterised in that: first temperature measuring unit and
Two temperature measuring units include thermistor.
10. a kind of femtosecond frequency comb, it is characterised in that: including the temperature controlling box as described in claim 1-9 is any and be used for and institute
State the controller of temperature controlling box communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492303.XU CN208781092U (en) | 2018-09-12 | 2018-09-12 | A kind of temperature controlling box and femtosecond frequency comb of grading control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492303.XU CN208781092U (en) | 2018-09-12 | 2018-09-12 | A kind of temperature controlling box and femtosecond frequency comb of grading control |
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| CN208781092U true CN208781092U (en) | 2019-04-23 |
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|---|---|---|---|
| CN201821492303.XU Active CN208781092U (en) | 2018-09-12 | 2018-09-12 | A kind of temperature controlling box and femtosecond frequency comb of grading control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109002070A (en) * | 2018-09-12 | 2018-12-14 | 清华大学深圳研究生院 | A kind of temperature controlling box of grading control, control method and femtosecond frequency comb |
-
2018
- 2018-09-12 CN CN201821492303.XU patent/CN208781092U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109002070A (en) * | 2018-09-12 | 2018-12-14 | 清华大学深圳研究生院 | A kind of temperature controlling box of grading control, control method and femtosecond frequency comb |
| CN109002070B (en) * | 2018-09-12 | 2024-02-23 | 清华大学深圳研究生院 | Hierarchical control temperature control box, hierarchical control method and femtosecond frequency comb |
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