CN103794972A - High-precision temperature control device for large-diameter crystal - Google Patents
High-precision temperature control device for large-diameter crystal Download PDFInfo
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- CN103794972A CN103794972A CN201410066547.1A CN201410066547A CN103794972A CN 103794972 A CN103794972 A CN 103794972A CN 201410066547 A CN201410066547 A CN 201410066547A CN 103794972 A CN103794972 A CN 103794972A
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Abstract
The invention discloses a high-precision temperature control device for a large-diameter crystal, relates to a crystal temperature control device and aims at solving the problems that an existing heating device cannot realize precise temperature control of the large-diameter crystal and cannot maintain the temperature gradient of the crystal within 0.2 DEG C. A heater is fixed on the circumferential face of the excircle of a copper ring. The straight end faces of two inner check rings are arranged in an opposite mode, are arranged in the copper ring in a sleeved mode and are in detachable connection with the copper ring in the radial direction. A vertically-arranged crystal is fixed between the straight end faces of the two inner check rings. An inner fixed end cover is fixedly connected with the copper ring. A window glass sheet is fixed on the inclined end faces of the inner check rings in a sealing mode through the inner fixed end cover. The outer side of the heater is sleeved with an outer shell. The two ends of the outer shell are fixed with an outer fixed end cover. A temperature measuring thermal couple is fixed on the copper ring. A display instrument of the temperature measuring thermal couple is arranged on a temperature controller. The temperature measuring thermal couple is connected with the display instrument of the temperature measuring thermal couple through a wire. The display instrument transmits temperature to the temperature controller. The temperature controller is connected with the heater through a wire. The high-precision temperature control device for the large-diameter crystal is used for high-precision temperature control of the large-diameter crystal.
Description
Technical field
The present invention relates to a kind of crystal temperature effect control device.
Background technology
Frequency-doubled conversion technology is the important method that obtains high energy laser, mainly obtain high-frequency, high-octane laser by crystal as the frequency-doubled effect of KDP, DKDP, ADP etc., because crystal has higher temperature susceplibility, the frequency-doubling conversion efficiency that just can significantly reduce crystal under less variations in temperature, therefore need to carry out high-precision temperature control to crystal.In a lot of fields, the demand of large light beam high-frequency laser is more and more urgent, simultaneously, 90 ° of noncritical phase matching technology, because it has compared with large effective nonlinear optical coefficients, compared with little phase matched angular sensitivity, does not have optics to walk from more and more being applied with the advantage such as utilance height, have therefore proposed more and more higher requirement to the temperature control precision of heavy caliber crystal.
And adopt existing heater cannot realize the control of heavy caliber crystal accurate temperature, and cannot keep crystal temperature gradient to be controlled in 0.2 ℃.
Summary of the invention
The object of this invention is to provide a kind of heavy caliber crystal high-precision temperature control device, solved the problem that existing heater cannot be realized the accurate temperature control of heavy caliber crystal and keep crystal temperature gradient △ T≤0.2 ℃.
The present invention addresses the above problem and takes following technical scheme:
A kind of heavy caliber crystal high-precision temperature control device, it comprises heater; Described heavy caliber crystal high-precision temperature control device also comprises shell, copper ring, temperature control system, two inner baffle rings, two window glass sheets, fixes end cap and two outer fixing end caps in two, and described temperature control system comprises temperature thermocouple and temperature controller;
One of them end face of two opposing end surfaces of each inner baffle ring is straight end face, another end face is angled end-face, the outer circumference surface of described copper ring is fixed with heater, the straight end face of two inner baffle rings is oppositely arranged and is sleeved in copper ring, two inner baffle rings all radially removably connect with copper ring, and between the straight end face of two inner baffle rings, be fixed with the crystal of vertical setting, on the angled end-face of each inner baffle ring, be provided with a window glass sheet, the lateral surface of two window glass sheets is respectively provided with in one and fixes end cap, the inner face of interior fixing end cap is oblique inner face, the interior fixing oblique inner face of end cap and the angled end-face gradient of inner baffle ring are consistent,
Each interior fixing end cap is fixedly connected with the abutting end of copper ring, each window glass sheet is fixed on the angled end-face of inner baffle ring by the oblique inner face sealing of interior fixing end cap, a shell of outside suit of heater, shell is cylindric, the two ends of shell are respectively fixed with an outer fixing end cap, temperature thermocouple is fixed on copper ring through shell and heater, and the Displaying Meter of temperature thermocouple is arranged on temperature controller, and temperature thermocouple is connected with the Displaying Meter of temperature thermocouple by wire.
The present invention's beneficial effect is compared with prior art:
1, the present invention, by the temperature value of temperature thermocouple test copper ring being installed as the closure of feedback signal control heater, maintains the heat source temperature of crystal, can obtain copper ring temperature value accurately.That the present invention also has advantages of is simple in structure, control precision Δ T≤0.2 ℃ and low cost of manufacture.
2, the present invention controls the temperature of copper ring by the switching of temperature controller control heater, thereby heat crystal, by the sealing function of window glass sheet, thereby can guarantee that crystal has lower temperature gradient (crystal temperature gradient is controlled in 0.2 ℃) forming a stable temperature province around crystal.
Accompanying drawing explanation
Fig. 1 is that overall structure master of the present invention looks schematic diagram, and Fig. 2 is the main cutaway view of inner baffle ring, and Fig. 3 is the main cutaway view of copper ring.
Description of reference numerals: heater 1, crystal 2, window glass sheet 3, outer fixing end cap 6, shell 7, copper ring 10, key 11, inner baffle ring 12, interior fixing end cap 13, temperature thermocouple 14, temperature controller 15, straight end face 20, angled end-face 21, Displaying Meter 22, keyway 23, groove 24, screwed hole 25.
Embodiment
Below in conjunction with concrete accompanying drawing explanation the specific embodiment of the present invention.
Embodiment one: in conjunction with Fig. 1-Fig. 3 explanation, a kind of heavy caliber crystal high-precision temperature control device of present embodiment, it comprises heater 1; Described heavy caliber crystal high-precision temperature control device also comprises shell 7, copper ring 10, temperature control system, two inner baffle rings 12, two window glass sheets 3, fixes end cap 13 and two outer fixing end caps 6 in two, and described temperature control system comprises temperature thermocouple 14 and temperature controller 15;
One of them end face of two opposing end surfaces of each inner baffle ring 12 is straight end face 20, another end face is angled end-face 21, the outer circumference surface of described copper ring 10 is fixed with heater 1, the straight end face 20 of two inner baffle rings 12 is oppositely arranged and is sleeved in copper ring 10, two inner baffle rings 12 all radially removably connect with copper ring 10, and between the straight end face 20 of two inner baffle rings 12, be fixed with the crystal 2 of vertical setting, on the angled end-face 21 of each inner baffle ring 12, be provided with a window glass sheet 3, the lateral surface of two window glass sheets 3 is respectively provided with and in one, fixes end cap 13, the inner face of interior fixing end cap 13 is oblique inner face, the interior fixing oblique inner face of end cap 13 and angled end-face 21 gradients of inner baffle ring 12 are consistent, each interior fixing end cap 13 is fixedly connected with (adopting screw to be fixedly connected with) with the abutting end of copper ring 10, each window glass sheet 3 is fixed on the angled end-face 21 of inner baffle ring 12 by the oblique inner face sealing of interior fixing end cap 13, an outside shell 7(of suit of heater 1 shields), shell 7 is cylindric, (adopting screw to be fixedly connected with) respectively fixed with an outer fixing end cap 6 in the two ends of shell 7, temperature thermocouple 14 is fixed on copper ring 10 through shell 7 and heater 1, the Displaying Meter 22 of temperature thermocouple 14 is arranged on temperature controller 15, temperature thermocouple 14 be connected with the Displaying Meter 22 of temperature thermocouple 14 by wire (temperature thermocouple 14 is for detection of the temperature of copper ring 10), the temperature data that Displaying Meter 22 is exported is to temperature controller 15, temperature controller 15 be connected with heater 1 by wire (closure that realizes the circuit of heater 1 by control system).
Temperature thermocouple 14 measuring accuracies in present embodiment are ± 0.1 ℃; Selected temperature controller 15 can raise or reduce the control temperature of thermal source with 0.1 ℃/step.The temperature signal of temperature thermocouple 14 is exported to temperature controller 15, temperature controller 15 control heater 1 current supply circuit on-offs.
Embodiment two: in conjunction with Fig. 1 and Fig. 2 explanation, described in present embodiment, the lateral wall of two inner baffle rings 12 respectively offers a keyway 23, two keyways 23 are arranged on same straight line and (guarantee the 3 parallel placements of window glass sheet), on the inwall of copper ring 10, offer along its length groove 24, groove 24 is corresponding with two keyways 23, in each corresponding keyway 23 and groove 24, a key 11 is housed, two inner baffle rings 12 respectively radially removably connect by a key 11 and copper ring 10, and close contact between the madial wall of the lateral wall of two inner baffle rings 12 and copper ring 10.Stable connection, convenient, to be also convenient to install simultaneously, in present embodiment, undocumented technical characterictic is identical with embodiment one.
Embodiment three: in conjunction with Fig. 2 explanation, the angled end-face 21 of each inner baffle ring 12 is α with the angle between end face 20 directly described in present embodiment, and α=5 °, to eliminate the impact of stray light.In present embodiment, undocumented technical characterictic is identical with embodiment one or two.
Embodiment four: in conjunction with Fig. 1 and Fig. 3 explanation, offer at least one screwed hole 25 described in present embodiment on the lateral wall of copper ring 10, temperature thermocouple 14 is connected with a screwed hole 25 of copper ring 10.In present embodiment, undocumented technical characterictic is identical with embodiment one.
In present embodiment, the quantity of the screwed hole 25 of offering on the lateral wall of copper ring 10 is five, selects as required one of them screwed hole 25 to be connected with temperature thermocouple 14.
Embodiment five: in conjunction with Fig. 1 explanation, heater 1 is resistance heater described in present embodiment.In present embodiment, undocumented technical characterictic is identical with embodiment one.
Embodiment six: in conjunction with Fig. 1 explanation, two window glass sheets 3 be arranged in parallel described in present embodiment, guarantee light path parallel.In present embodiment, undocumented technical characterictic is identical with embodiment one.
Embodiment seven: in conjunction with Fig. 1 explanation, the center line of crystal 2, window glass sheet 3 and two inner baffle rings 12 is on same straight line described in present embodiment.In present embodiment, undocumented technical characterictic is identical with embodiment one.
Operation principle
The course of work of the present invention (referring to Fig. 1-Fig. 3): first key is arranged in the keyway of two inner baffle rings, then fix by screw and copper ring fixing end cap in one, in copper ring, put in turn a window glass sheet, inner baffle ring, crystal, another inner baffle ring and another window glass sheet, in installation process, keep away the direct contact window sheet glass of manual-free, and carefully put into crystal, be finally fixed on copper ring fixing end cap in another.Installing after crystal, temperature thermocouple is being fixed on the suitable screwed hole of copper ring, by copper plug sealing for no screwed hole, Displaying Meter 22 is fixed on temperature controller, power line is fixed on temperature controller simultaneously.Temperature value in setup control instrument as required, power-on also heats crystal, after 50min, crystal temperature effect can reach stable, temperature value on control instrument can be set simultaneously, the value of fluctuating of control of heat source, in the time finely tuning plane of crystal temperature at needs, can control by control instrument, when setting after new temperature value, after 15min, can again reach balance.The present invention is that one heats heavy caliber crystal in confined space, can make crystal have higher temperature control precision and maintain stable state of a control.Described crystal 2 is heavy caliber crystal, and diameter is Φ 80mm.
Claims (7)
1. a heavy caliber crystal high-precision temperature control device, it comprises heater (1); It is characterized in that: described heavy caliber crystal high-precision temperature control device also comprises in shell (7), copper ring (10), temperature control system, two inner baffle rings (12), two window glass sheets (3), two fixes end cap (13) and two outer fixing end caps (6), and described temperature control system comprises temperature thermocouple (14) and temperature controller (15);
One of them end face of two opposing end surfaces of each inner baffle ring (12) is straight end face (20), another end face is angled end-face (21), the outer circumference surface of described copper ring (10) is fixed with heater (1), the straight end face (20) of two inner baffle rings (12) is oppositely arranged and is sleeved in copper ring (10), two inner baffle rings (12) all radially removably connect with copper ring (10), and between the straight end face (20) of two inner baffle rings (12), be fixed with the crystal (2) of vertical setting, on the angled end-face (21) of each inner baffle ring (12), be provided with a window glass sheet (3), the lateral surface of two window glass sheets (3) is respectively provided with and in one, fixes end cap (13), the inner face of interior fixing end cap (13) is oblique inner face, the interior fixing oblique inner face of end cap (13) and angled end-face (21) gradient of inner baffle ring (12) are consistent, each interior fixing end cap (13) is fixedly connected with the abutting end of copper ring (10), each window glass sheet (3) is fixed on the angled end-face (21) of inner baffle ring (12) by the oblique inner face sealing of interior fixing end cap (13), an outside shell of suit (7) of heater (1), shell (7) is cylindric, the two ends of shell (7) are each fixing with an outer fixing end cap (6), temperature thermocouple (14) is fixed on copper ring (10) through shell (7) and heater (1), the Displaying Meter (22) of temperature thermocouple (14) is arranged on temperature controller (15), temperature thermocouple (14) is connected with the Displaying Meter (22) of temperature thermocouple (14) by wire, the temperature data of Displaying Meter (22) output is to temperature controller (15), temperature controller (15) is connected with heater (1) by wire.
2. a kind of heavy caliber crystal high-precision temperature control device according to claim 1, it is characterized in that: the lateral wall of described two inner baffle rings (12) respectively offers a keyway (23), two keyways (23) are arranged on same straight line, on the inwall of copper ring (10), offer along its length groove (24), groove (24) is corresponding with two keyways (23), in each corresponding keyway (23) and groove (24), a key (11) is housed, two inner baffle rings (12) respectively radially removably connect by a key (11) and copper ring (10), and close contact between the madial wall of the lateral wall of two inner baffle rings (12) and copper ring (10).
3. according to a kind of heavy caliber crystal high-precision temperature control device described in claim 1 or 2, it is characterized in that: the angle between the angled end-face (21) of described each inner baffle ring (12) and straight end face (20) is α, α=5 °.
4. a kind of heavy caliber crystal high-precision temperature control device according to claim 1, it is characterized in that: on the lateral wall of described copper ring (10), offer at least one screwed hole (25), temperature thermocouple (14) is connected with a screwed hole (25) of copper ring (10).
5. a kind of heavy caliber crystal high-precision temperature control device according to claim 1, is characterized in that: described heater (1) is resistance heater.
6. a kind of heavy caliber crystal high-precision temperature control device according to claim 1, is characterized in that: described two window glass sheets (3) be arranged in parallel.
7. a kind of heavy caliber crystal high-precision temperature control device according to claim 1, is characterized in that: the center line of described crystal (2), window glass sheet (3) and two inner baffle rings (12) is on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066547.1A CN103794972B (en) | 2014-02-26 | 2014-02-26 | A kind of heavy caliber crystal high accuracy temperature control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066547.1A CN103794972B (en) | 2014-02-26 | 2014-02-26 | A kind of heavy caliber crystal high accuracy temperature control device |
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| CN103794972A true CN103794972A (en) | 2014-05-14 |
| CN103794972B CN103794972B (en) | 2016-06-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987242A (en) * | 2019-12-17 | 2020-04-10 | 厦门标安科技有限公司 | Improved end cover structure of reaction calorimeter |
| CN113325901A (en) * | 2021-02-08 | 2021-08-31 | 南京工业大学 | Large-caliber nonlinear crystal heating method, system and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020136247A1 (en) * | 2000-04-19 | 2002-09-26 | Naoaki Ikeda | Laser wavelength converter |
| CN101916958A (en) * | 2010-08-25 | 2010-12-15 | 核工业理化工程研究院 | Constant temperature control device of frequency doubling crystals of solid laser |
| CN103808694B (en) * | 2014-02-26 | 2015-10-28 | 哈尔滨工业大学 | A kind of heavy caliber crystal defect detection method and device |
-
2014
- 2014-02-26 CN CN201410066547.1A patent/CN103794972B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020136247A1 (en) * | 2000-04-19 | 2002-09-26 | Naoaki Ikeda | Laser wavelength converter |
| CN101916958A (en) * | 2010-08-25 | 2010-12-15 | 核工业理化工程研究院 | Constant temperature control device of frequency doubling crystals of solid laser |
| CN103808694B (en) * | 2014-02-26 | 2015-10-28 | 哈尔滨工业大学 | A kind of heavy caliber crystal defect detection method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987242A (en) * | 2019-12-17 | 2020-04-10 | 厦门标安科技有限公司 | Improved end cover structure of reaction calorimeter |
| CN113325901A (en) * | 2021-02-08 | 2021-08-31 | 南京工业大学 | Large-caliber nonlinear crystal heating method, system and device |
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| Publication number | Publication date |
|---|---|
| CN103794972B (en) | 2016-06-08 |
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Inventor after: Zhang Peng Inventor after: Sun Fuzhong Inventor after: Lu Lihua Inventor after: Liang Yingchun Inventor before: Zhang Peng Inventor before: Liang Yingchun Inventor before: Sun Fuzhong Inventor before: Lu Lihua |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG PENG LIANG YINGCHUN SUN FUZHONG LU LIHUA TO: ZHANG PENG SUN FUZHONG LU LIHUA LIANG YINGCHUN |
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