CN109921744B - Single-groove constant-temperature crystal oscillator with temperature control structure and spring shock resistance - Google Patents
Single-groove constant-temperature crystal oscillator with temperature control structure and spring shock resistance Download PDFInfo
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- CN109921744B CN109921744B CN201910131553.3A CN201910131553A CN109921744B CN 109921744 B CN109921744 B CN 109921744B CN 201910131553 A CN201910131553 A CN 201910131553A CN 109921744 B CN109921744 B CN 109921744B
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Abstract
The invention relates to a single-groove constant-temperature crystal oscillator with a temperature control structure and a spring for shock resistance, which comprises a regulating and controlling machine case and a crystal oscillator body, wherein a box groove is formed in the left end of the regulating and controlling machine case. The beneficial effects of the invention are as follows: this be equipped with temperature control structure and single groove constant temperature crystal oscillator of spring antidetonation is provided with the connection piece, through the use of water storage mouth, can conveniently add cooling liquid in to the catch basin, thereby give the better cooling effect of collection dress seat, and through the connection piece of collection dress seat top connection, can be further improve the radiating effect of collection dress seat, can link up through the block between fixed block and the linking groove simultaneously, can conveniently splice multiunit collection dress seat together, and then reduce the area of contact of collection dress seat and air, and then reduce its cooling effect, thereby play the effect of the supplementary regulation of control by temperature change, the use of case groove, cavity room and limit accuse room on the regulation and control machine case simultaneously, can conveniently install components such as micro-control circuit and micro-controller.
Description
Technical Field
The invention relates to the technical field of crystal oscillators, in particular to a single-groove constant-temperature crystal oscillator with a temperature control structure and a spring for shock resistance.
Background
The constant temperature crystal oscillator is a crystal oscillator in which the temperature of a quartz crystal resonator in the crystal oscillator is kept constant by a constant temperature tank, the variation of the output frequency of the oscillator due to the variation of the ambient temperature is reduced to the minimum, and the OCXO is composed of a constant temperature tank control circuit and an oscillator circuit and is usually realized by a differential serial amplifier composed of a thermistor "bridge".
The existing crystal oscillator has a plurality of problems caused by unreasonable structural design, such as incapability of reasonably adjusting and cooling, so that the problem that the temperature of the crystal oscillator is difficult to control when the crystal oscillator is used in a special environment, a certain potential safety hazard exists, and the problem that the temperature control effect is not ideal when the general crystal oscillator is used is also caused.
Disclosure of Invention
The invention aims to provide a single-groove constant-temperature crystal oscillator with a temperature control structure and a spring for shock resistance, so as to solve the problems that the prior crystal oscillator has unreasonable structural design, so that the crystal oscillator has a plurality of problems in use, such as incapability of reasonably adjusting and reducing temperature, and the problem that the temperature of the crystal oscillator is difficult to control in use under special environment, has certain potential safety hazard, and has unsatisfactory temperature control effect in use.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a single groove constant temperature crystal oscillator with accuse temperature structure and spring antidetonation, includes regulation and control quick-witted case and crystal oscillator body, the case groove has been seted up to the inside of regulation and control quick-witted case left end, and the lower extreme of case groove has been settled to the middle baffle, the bottom mounting of case groove has heat conduction mechanism, and the right side of case groove installs conductive mechanism, the cavity room has been seted up at the middle part of regulation and control quick-witted case, and temperature sensor is installed to the inboard of cavity room, the limit accuse room has been seted up to the right-hand member of cavity room.
Preferably, the heat conduction mechanism comprises a heating plate and a heat transfer strip, the heating plate is arranged at the top of the heat conduction mechanism, and the bottom end of the heating plate is connected with the heat transfer strip.
Preferably, the heating plate is fixedly connected with the heat transfer strip, the heat transfer strip is equidistantly distributed relative to the horizontal direction of the heating plate, the conductive mechanism comprises a conductive copper sheet and a connecting copper foil, the conductive mechanism is fixedly provided with the conductive copper sheet, and the outer side of the conductive copper sheet is connected with the connecting copper foil.
Preferably, the conductive copper sheets are fixedly connected with the connecting copper foil through welding, the connecting copper foil is provided with two groups, and each group is provided with four groups.
Preferably, the crystal oscillator comprises a side groove, a heat radiation cross bar, a metal connecting sheet and a side connecting groove, the crystal oscillator is positioned at the bottom end of the regulating and controlling case, the side groove is formed in the front end and the rear end of the crystal oscillator, the heat radiation cross bar is connected with the inner side of the side groove, the metal connecting sheet is fixed on the outer side of the heat radiation cross bar, and the side connecting grooves are formed in the left end and the right end of the crystal oscillator.
Preferably, the heat dissipation crossbars are equidistantly distributed in relation to the vertical direction of the side grooves, the heat dissipation crossbars are fixedly connected with the metal connecting sheets, two side grooves are formed, and the side grooves are symmetrical in relation to the center of the crystal oscillator.
Preferably, the temperature regulator comprises a container seat, a water storage port, a fixed block, a connecting groove and a connecting sheet, wherein a cross-connection slideway is arranged in the middle of the side connecting groove, the temperature regulator is connected with the inner side of the side connecting groove, the container seat is fixed in the middle of the temperature regulator, the water storage port is arranged at the top end of the container seat, the fixed block is fixed on the right wall of the container seat, the connecting groove is arranged in the middle of the left end of the container seat, and the connecting sheet is fixed at the top of the container seat.
Preferably, two cross-connected slideways are arranged, the caliber of the bottom end of each cross-connected slideway is larger than that of the top end of each cross-connected slideway, a fixed sliding block is fixed at the bottom end of the temperature regulator, and the temperature regulator and the crystal oscillator form a sliding structure through the fixed sliding blocks and the cross-connected slideways.
Preferably, the water storage tank is arranged in the middle of the container seat, a communication structure is arranged between the water storage tank and the water storage port, the container seat is fixedly connected with the connecting sheet, and the shape structure of the fixing block is identical with the shape structure of the connecting groove.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the arrangement of the heating plate and the heat transfer strip, the temperature can be raised through the operation of the heating plate and the heat transfer strip, and the temperature can be transferred into the heat radiation transverse strip, so that a good heating effect is achieved, and the auxiliary operation of temperature control is convenient.
2. According to the invention, through the arrangement of the connecting copper foil and the metal connecting sheet, the electric wire connection can be conveniently carried out through the arrangement of the connecting copper foil, the connecting copper foil is conveniently connected to the pins at the lower end of the main body through the metal connecting sheet, and the electric wire connector has a good electric conduction effect.
3. According to the invention, through the arrangement of the side grooves and the heat radiation cross bars, the heat radiation operation in the side grooves can be conveniently carried out through the use of the plurality of groups of heat radiation cross bars, and the heat radiation cross bars can be conveniently connected and used through the use of the metal connecting sheets connected with the inner sides of the side grooves, so that the heat transfer effect of the heat radiation cross bars is conveniently improved.
4. According to the invention, through the arrangement of the side connecting grooves and the cross connecting slide ways, the positions of the container seats can be slidably adjusted through the sliding between the cross connecting slide ways and the fixed sliding blocks, so that the positions between the container seats can be conveniently adjusted, the size of the interval between the container seats can be conveniently selected, the effect of regulating and controlling the use is achieved, and the main body can be conveniently operated and used.
5. According to the invention, through the arrangement of the container seat, the water storage port, the fixed block, the connecting groove and the connecting sheet, cooling liquid can be conveniently added into the water storage groove through the use of the water storage port, so that a better cooling effect is given to the container seat, the heat dissipation effect of the container seat can be further improved through the connecting sheet connected with the top end of the container seat, meanwhile, a plurality of groups of container seats can be conveniently spliced together through the clamping connection between the fixed block and the connecting groove, the contact area of the container seat and air is further reduced, the cooling effect is further reduced, the temperature control auxiliary adjustment effect is realized, and meanwhile, the micro control circuit, the micro controller and other elements can be conveniently installed through the use of the box groove, the hollow chamber and the side control chamber on the regulation and control machine case.
Drawings
FIG. 1 is a schematic diagram of a single-tank thermostatic crystal oscillator with a temperature control structure and a spring shock resistance;
FIG. 2 is a schematic diagram of a top view structure of a regulating cabinet and a crystal oscillator of a single-tank constant-temperature crystal oscillator provided with a temperature control structure and spring shock resistance;
FIG. 3 is a schematic diagram of a left-hand view structure of a crystal oscillator body of a single-tank constant-temperature crystal oscillator provided with a temperature control structure and spring shock resistance according to the invention;
FIG. 4 is a schematic diagram of an enlarged structure at A in FIG. 1 of a spring-resistant single-tank thermostatic crystal oscillator with a temperature control structure according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of the single-tank constant temperature crystal oscillator of FIG. 3B with a temperature control structure and a spring shock resistance according to the present invention.
In the figure: 1. regulating and controlling a case; 2. a tank; 3. a middle partition plate; 4. a heat conduction mechanism; 5. a heating sheet; 6. a heat transfer strip; 7. a conductive mechanism; 8. a conductive copper sheet; 9. joining copper foil; 10. a hollow chamber; 11. a temperature sensor; 12. a side control chamber; 13. a crystal oscillator; 14. a side groove; 15. heat dissipation cross bars; 16. a metal connecting sheet; 17. an edge connecting groove; 18. connecting the slide way in a penetrating way; 19. a thermostat; 20. a container seat; 21. a water storage port; 22. a fixed block; 23. a connection groove; 24. and a connecting sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-5, the present invention provides a technical solution: a single-groove constant-temperature crystal oscillator with a temperature control structure and a spring for shock resistance comprises a regulating and controlling machine case 1, a box groove 2, an intermediate baffle 3, a heat conducting mechanism 4, a heating plate 5, a heat conducting strip 6, a conducting mechanism 7, a conducting copper sheet 8, a connecting copper foil 9, a hollow chamber 10, a temperature sensor 11, an edge control chamber 12, a crystal oscillator 13, an edge groove 14, a heat radiating transverse strip 15, a metal connecting sheet 16, an edge connecting groove 17, a cross-connection slideway 18, a temperature regulator 19, a container seat 20, a water storage port 21, a fixed block 22, a connecting groove 23 and a connecting sheet 24, wherein the box groove 2 is formed in the left end of the regulating and controlling machine case 1, the intermediate baffle 3 is arranged at the lower end of the box groove 2, the heat conducting mechanism 4 is fixed at the bottom end of the box groove 2, the conducting mechanism 7 is arranged on the right side of the box groove 2, the hollow chamber 10 is formed in the middle of the regulating and controlling machine case 1, the temperature sensor 11 is arranged on the inner side of the hollow chamber 10, and the edge control chamber 12 is formed in the right end of the hollow chamber 10;
the heat conduction mechanism 4 comprises a heating plate 5 and a heat transfer strip 6, the heating plate 5 is arranged at the top of the heat conduction mechanism 4, and the bottom end of the heating plate 5 is connected with the heat transfer strip 6
The heating plates 5 and the heat transfer strips 6 are fixedly connected, the heat transfer strips 6 are equidistantly distributed with respect to the horizontal direction of the heating plates 5, the conductive mechanism 7 comprises conductive copper sheets 8 and joint copper foils 9, the conductive copper sheets 8 are fixedly arranged on the conductive mechanism 7, the joint copper foils 9 are connected to the outer sides of the conductive copper sheets 8, the conductive copper sheets 8 and the joint copper foils 9 form the fixed connection through welding, the joint copper foils 9 are provided with two groups, each group of the conductive copper sheets is provided with four, the connection of wires can be conveniently carried out through the arrangement of the joint copper foils 9, the joint copper foils 9 are conveniently connected to pins at the lower end of the main body through the metal connecting sheets 16, the conductive effect is good, the temperature can be transferred into the heat radiation transverse strips 15 through the action of the heat transfer strips 6 through the operation of the heating plates 5, the good temperature rising effect is further achieved, and the auxiliary operation of temperature control is convenient;
the crystal oscillator 13 comprises side grooves 14, radiating cross bars 15, metal connecting sheets 16 and side connecting grooves 17, the crystal oscillator 13 is positioned at the bottom end of the regulating and controlling cabinet 1, the front end and the rear end of the crystal oscillator 13 are respectively provided with the side grooves 14, the inner sides of the side grooves 14 are connected with the radiating cross bars 15, the outer sides of the radiating cross bars 15 are fixedly provided with the metal connecting sheets 16, the left end and the right end of the crystal oscillator 13 are respectively provided with the side connecting grooves 17, the radiating cross bars 15 are equidistantly distributed relative to the vertical direction of the side grooves 14, the radiating cross bars 15 are fixedly connected with the metal connecting sheets 16, the side grooves 14 are arranged, the side grooves 14 are symmetrical relative to the center of the crystal oscillator 13, radiating operation can be conveniently carried out in the side grooves 14 through the use of the plurality of groups of the radiating cross bars 15, and the radiating cross bars 15 are conveniently connected through the use of the metal connecting sheets 16 connected with the inner sides of the side grooves 14, so that the radiating cross bars 15 can be conveniently connected and the effect of heat transfer is conveniently improved;
the temperature regulator 19 comprises a container seat 20, a water storage port 21, a fixed block 22, a connecting groove 23 and connecting sheets 24, wherein the middle part of the side connecting groove 17 is provided with a cross-connecting slide rail 18, the inner side of the side connecting groove 17 is connected with the temperature regulator 19, the middle part of the temperature regulator 19 is fixedly provided with the container seat 20, the water storage port 21 is arranged at the top end of the container seat 20, the right wall of the container seat 20 is fixedly provided with the fixed block 22, the middle part of the left end of the container seat 20 is provided with the connecting groove 23, the top of the container seat 20 is fixedly provided with the connecting sheets 24, the cross-connecting slide rail 18 is provided with two, the bottom caliber of the cross-connecting slide rail 18 is larger than the top caliber of the cross-connecting slide rail 18, the bottom of the temperature regulator 19 is fixedly provided with a fixed slide block, the temperature regulator 19 forms a sliding structure with the crystal oscillator 13 through the fixed slide block and can be used for sliding and adjusting the position of the container seat 20 through the sliding between the cross-connecting slide rail 18 and the fixed slide block, thereby being convenient for adjusting the position between the container seats 20, the size of the container seat 20 is convenient to select, and the space between the container seats 20 can play the effect, and regulate and use effects, and the convenience are convenient for a main body to operate and use;
the water storage tank is arranged in the middle of the container base 20, the water storage tank is connected with the water storage port 21, the container base 20 is fixedly connected with the connecting piece 24, the shape structure of the fixing block 22 is identical with that of the connecting groove 23, cooling liquid can be conveniently added into the water storage tank through the use of the water storage port 21, so that the container base 20 is endowed with a better cooling effect, the heat dissipation effect of the container base 20 can be further improved through the connecting piece 24 connected with the top end of the container base 20, meanwhile, a plurality of groups of container bases 20 can be conveniently spliced together through the clamping connection between the fixing block 22 and the connecting groove 23, the contact area between the container base 20 and air is reduced, the cooling effect is further reduced, and therefore the temperature control auxiliary adjustment effect is achieved, and meanwhile, the micro control circuit, the micro controller and other elements can be conveniently installed through the use of the box groove 2, the hollow chamber 10 and the side control chamber 12 on the regulating and the like.
In summary, this be equipped with temperature control structure and single groove constant temperature crystal oscillator of spring antidetonation, during the use, through the setting of linking copper foil 9, can conveniently carry out wire connection, be convenient for connect copper foil 9 to the pin of main part lower extreme through metal connection piece 16, have better conductive effect, through the function of heating plate 5, can intensify and pass through the effect of heat transfer strip 6, can transmit the temperature to heat dissipation horizontal bar 15 in, and then play fine heating effect, the auxiliary operation of control by temperature, through the use of multiunit heat dissipation horizontal bar 15, can conveniently carry out the heat dissipation operation in limit groove 14, and through the use of metal connection piece 16 that the limit groove 14 inboard links up, can be convenient for switch on and connect use heat dissipation horizontal bar 15, be convenient for improve its heat transfer's effect, through the slip between cross-under slide 18 and the fixed slider, can the sliding adjustment container seat 20's position, the position between the container bases 20 is convenient to adjust, the interval between the container bases 20 is convenient to select, the effect of regulation and control is achieved, the main body is convenient to operate and use, cooling liquid can be conveniently added into the water storage tank through the use of the water storage port 21, so that the container bases 20 are endowed with better cooling effect, the heat dissipation effect of the container bases 20 can be further improved through the connecting sheet 24 connected with the top ends of the container bases 20, meanwhile, a plurality of groups of container bases 20 can be conveniently spliced together through the clamping connection between the fixing blocks 22 and the connecting grooves 23, the contact area between the container bases 20 and air is further reduced, the cooling effect is further reduced, the effect of temperature control auxiliary regulation is achieved, and meanwhile, the container tank 2, the hollow chamber 10 and the side control chamber 12 on the regulation and control case 1 are used, the micro control circuit and the micro controller can be conveniently installed.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. Single groove constant temperature crystal oscillator with accuse temperature structure and spring antidetonation, including regulation and control machine case (1) and crystal oscillator body (13), its characterized in that: the utility model discloses a copper foil (8) and copper foil (9) is welded and connected with each other, and is characterized in that a tank groove (2) is arranged in the left end of a regulating and controlling case (1), a middle partition plate (3) is arranged at the lower end of the tank groove (2), a heat conduction mechanism (4) is fixed at the bottom end of the tank groove (2), an electric conduction mechanism (7) is arranged on the right side of the tank groove (2), a hollow chamber (10) is arranged in the middle of the regulating and controlling case (1), a temperature sensor (11) is arranged on the inner side of the hollow chamber (10), an edge control chamber (12) is arranged at the right end of the hollow chamber (10), the heat conduction mechanism (4) comprises a heating sheet (5) and a heat conduction strip (6), a heating sheet (5) is arranged at the top of the heat conduction mechanism (4), the bottom end of the heating sheet (5) is connected with the heat conduction strip (6), the heating sheet (5) and the heat conduction strip (6) are fixedly connected with each other, the heat conduction strip (6) is distributed at equal intervals in the horizontal direction of the heating sheet (5), the electric conduction mechanism (7) comprises an electric conduction copper sheet (8) and a copper foil (9), and the electric conduction copper sheet (8) are fixedly connected with the copper foil (9) through the copper foil (8) and the electric conduction copper foil (8) through the copper foil (9) and the electric conduction layer (8) and the electric conduction mechanism 1, and every group of the crystal oscillator (13) is provided with four, each crystal oscillator (13) comprises a side groove (14), a heat dissipation transverse bar (15), a metal connecting sheet (16) and a side connecting groove (17), each crystal oscillator (13) is located at the bottom end of a regulating and controlling case (1), each side groove (14) is formed in the front end and the rear end of each crystal oscillator (13), the heat dissipation transverse bars (15) are connected with the inner sides of the side grooves (14), the metal connecting sheets (16) are fixed to the outer sides of the heat dissipation transverse bars (15), the side connecting grooves (17) are formed in the left end and the right end of each crystal oscillator (13), the heat dissipation transverse bars (15) are distributed at equal intervals in the vertical direction of the side grooves (14), the heat dissipation transverse bars (15) are fixedly connected with the metal connecting sheets (16), and the side grooves (14) are arranged in two, and the side grooves (14) are symmetrical in the center of each crystal oscillator (13).
2. The single-tank thermostatic crystal oscillator provided with a temperature control structure and resistant to spring vibration as claimed in claim 1, wherein: the temperature regulator (19) comprises a container seat (20), a water storage opening (21), a fixed block (22), a connecting groove (23) and a connecting sheet (24), wherein the middle part of the side connecting groove (17) is provided with a cross-connection slideway (18), the inner side of the side connecting groove (17) is connected with the temperature regulator (19), the middle part of the temperature regulator (19) is fixedly provided with the container seat (20), the top end of the container seat (20) is provided with the water storage opening (21), the right wall of the container seat (20) is fixedly provided with the fixed block (22), the middle part of the left end of the container seat (20) is provided with the connecting groove (23), and the top of the container seat (20) is fixedly provided with the connecting sheet (24).
3. The single-tank thermostatic crystal oscillator provided with the temperature control structure and resistant to spring vibration as claimed in claim 2, wherein: the cross-connected slide ways (18) are two, the bottom caliber of the cross-connected slide ways (18) is larger than the top caliber of the cross-connected slide ways (18), the bottom ends of the temperature regulators (19) are fixedly provided with fixed sliding blocks, and the temperature regulators (19) and the crystal oscillator (13) form a sliding structure through the fixed sliding blocks and the cross-connected slide ways (18).
4. The single-tank thermostatic crystal oscillator provided with the temperature control structure and resistant to spring vibration as claimed in claim 2, wherein: the middle part of the container seat (20) is provided with a water storage groove, a communication structure is arranged between the water storage groove and the water storage opening (21), the container seat (20) is fixedly connected with the connecting sheet (24), and the shape structure of the fixing block (22) is matched with the shape structure of the connecting groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910131553.3A CN109921744B (en) | 2019-02-22 | 2019-02-22 | Single-groove constant-temperature crystal oscillator with temperature control structure and spring shock resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910131553.3A CN109921744B (en) | 2019-02-22 | 2019-02-22 | Single-groove constant-temperature crystal oscillator with temperature control structure and spring shock resistance |
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| CN109921744A CN109921744A (en) | 2019-06-21 |
| CN109921744B true CN109921744B (en) | 2023-06-06 |
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| JP2009267552A (en) * | 2008-04-23 | 2009-11-12 | Nippon Dempa Kogyo Co Ltd | Crystal oscillator with thermostatic bath |
| CN202475375U (en) * | 2011-06-29 | 2012-10-03 | 西安雷通科技有限责任公司 | Constant temperature crystal oscillator for satellite communication in motion and vehicle-mounted radar |
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| RU2122278C1 (en) * | 1997-07-09 | 1998-11-20 | Открытое акционерное общество "МОРИОН" | Constant-temperature crystal oscillator and its temperature controller adjustment technique |
| US7471162B2 (en) * | 2006-04-24 | 2008-12-30 | Nihon Dempa Kogyo Co., Ltd. | Surface mount type temperature-compensated crystal oscillator |
| TW200744314A (en) * | 2006-05-18 | 2007-12-01 | Taitien Electronics Co Ltd | Oscillator device capable of keeping constant temperature |
| JP2015095716A (en) * | 2013-11-11 | 2015-05-18 | 日本電波工業株式会社 | Crystal oscillator with thermostatic bath |
| CN206611401U (en) * | 2017-04-17 | 2017-11-03 | 成都联云创想科技有限公司 | A kind of constant-temperature crystal oscillator radiating damping device |
| CN107911095A (en) * | 2017-12-25 | 2018-04-13 | 广东大普通信技术有限公司 | Constant-temperature crystal oscillator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009267552A (en) * | 2008-04-23 | 2009-11-12 | Nippon Dempa Kogyo Co Ltd | Crystal oscillator with thermostatic bath |
| CN202475375U (en) * | 2011-06-29 | 2012-10-03 | 西安雷通科技有限责任公司 | Constant temperature crystal oscillator for satellite communication in motion and vehicle-mounted radar |
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| 改用硅管以提高压控输出频率的稳定度;陈宪玉;广播与电视技术(01);全文 * |
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