CN203119873U - Atomic frequency standard temperature compensating system and atomic frequency standard - Google Patents
Atomic frequency standard temperature compensating system and atomic frequency standard Download PDFInfo
- Publication number
- CN203119873U CN203119873U CN 201320037640 CN201320037640U CN203119873U CN 203119873 U CN203119873 U CN 203119873U CN 201320037640 CN201320037640 CN 201320037640 CN 201320037640 U CN201320037640 U CN 201320037640U CN 203119873 U CN203119873 U CN 203119873U
- Authority
- CN
- China
- Prior art keywords
- voltage
- temperature
- module
- electrically connected
- vcxo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
The utility model discloses an atomic frequency standard temperature compensating system and an atomic frequency standard, which belong to the atomic frequency standard field. The system comprises a temperature acquisition module, a temperature compensating module and a voltage-controlled transformation module. The temperature acquisition module is respectively electrically connected with the temperature compensating module and a voltage-controlled crystal oscillator. The voltage-controlled transformation module is respectively electrically connected with the temperature compensating module, the voltage-controlled crystal oscillator and the servo circuit of the atomic frequency standard. By converting the difference between the working environment temperature of the voltage-controlled crystal oscillator during a working process and a reference working temperature into a voltage and making the voltage compensated to a rectifying signal to acquire a voltage-controlled voltage, and further making the voltage-controlled voltage acted on the voltage-controlled crystal oscillator, the system thus alleviates the influence of the working environment temperature on the output frequency of the voltage-controlled crystal oscillator and makes the frequency (i.e. output frequency of the atomic frequency standard) output by the voltage-controlled crystal oscillator more stable and accurate.
Description
Technical field
The utility model relates to the atomic frequency standard field, particularly a kind of atomic frequency standard temperature compensation system and atomic frequency standard.
Background technology
The extensive use of digitlization integrated chip, for build the integrated level height, circuit module that precision is high provides prerequisite.In the atomic frequency standard servo circuit, all adopted DDS(Direct Digital Synthesizer both at home and abroad, Direct Digital Synthesizer) and the processor of high integration finish the closed loop work of whole system.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art:
In a concrete atomic frequency standard, because the output of VCXO can be subjected to influence of temperature variation, and the existing servo circuit of being formed by the processor of DDS and high integration, can't solve the problem that the output of the VCXO that variations in temperature brings changes, cause the atomic frequency standard output accuracy low.
The utility model content
In order to solve prior art problems, the utility model embodiment provides a kind of atomic frequency standard temperature compensation system and atomic frequency standard.Described technical scheme is as follows:
On the one hand, the utility model embodiment provides a kind of atomic frequency standard temperature compensation system, and described system comprises:
The temperature collect module of the operating ambient temperature of VCXO when being used for obtaining atomic frequency standard work;
Be converted to the temperature compensation module of bucking voltage for the difference of the described operating ambient temperature that will get access to and reference work temperature;
Be used for adopting described bucking voltage that the deviation correcting signal of the servo circuit generation of atomic frequency standard is compensated, obtain voltage-controlled voltage, and described voltage-controlled voltage is acted on the voltage-controlled conversion module of described VCXO;
Wherein, described temperature collect module is electrically connected with described temperature compensation module and described VCXO respectively, and described voltage-controlled conversion module is electrically connected with the servo circuit of described temperature compensation module, described VCXO and described atomic frequency standard respectively.
Wherein, described temperature collect module comprises thermistor Ra.
Wherein, described temperature compensation module comprises: the temperature conversion circuit that is converted to voltage difference for the difference of the described operating ambient temperature that described temperature collect module is got access to and described reference work temperature;
Be used for that described voltage difference is carried out difference and amplify, be compensated the operational amplifier A of voltage;
The negative feedback resistor Rw that is used for the yield value of the described operational amplifier A of adjusting;
Be used for regulating by the resistance of controlling described negative feedback resistor Rw the processor of the yield value of described operational amplifier A;
Wherein, described temperature conversion circuit is electrically connected with described temperature collect module, the input of described operational amplifier A is electrically connected with described temperature conversion circuit, the output of described operational amplifier A is electrically connected with described voltage-controlled conversion module, described negative feedback resistor Rw is connected between the inverting input and output of described operational amplifier A, and described negative feedback resistor Rw also is electrically connected with described processor.
Further, described temperature conversion circuit comprises electric bridge, described electric bridge comprises thermistor Ra, resistance R 1 and two resistance R, and the resistance value of described resistance R 1 is corresponding with described reference work temperature, and the temperature coefficient of described resistance R 1 is identical with described thermistor Ra.
Preferably, described negative feedback resistor Rw is digital potentiometer.
Wherein, described voltage-controlled conversion module comprises:
Be used for the voltage of described bucking voltage and described deviation correcting signal is sued for peace, obtain the summing circuit of described voltage-controlled voltage;
Be used for the digital to analog converter that the described voltage-controlled voltage of output acts on described VCXO;
Described summing circuit is electrically connected with servo circuit and the described temperature compensation module of described atomic frequency standard respectively, and described digital to analog converter is electrically connected with described summing circuit and described VCXO respectively.
On the other hand, the utility model embodiment also provides a kind of atomic frequency standard, described atomic frequency standard comprises: VCXO, isolated amplifier, microwave times frequency mixing module, physical location, comprehensive module and servo circuit, wherein said comprehensive module respectively with described isolated amplifier, described microwave times frequency mixing module and described servo circuit are electrically connected, described isolated amplifier is electrically connected with described VCXO and a described microwave times frequency mixing module, described physical location is electrically connected with described microwave times frequency mixing module and described servo circuit respectively, described atomic frequency standard also comprises: aforesaid temperature compensation system, described temperature compensation system are electrically connected with described VCXO and described servo circuit respectively.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Operating ambient temperature when VCXO is worked and the difference of reference work temperature are converted to voltage, and this voltage compensation obtained voltage-controlled voltage in deviation correcting signal, again voltage-controlled voltage is acted on VCXO, reduced the influence of operating ambient temperature to the output frequency of VCXO, made that the frequency (being the output frequency of atomic frequency standard) of VCXO output is more stable and accurate.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the atomic frequency standard temperature compensation system structural representation that the utility model embodiment one provides;
Fig. 2 is the circuit diagram of temperature collect module and temperature compensation module in the atomic frequency standard temperature compensation system that provides of the utility model embodiment one;
Fig. 3 is the atomic frequency standard structural representation that the utility model embodiment two provides.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model execution mode is described in further detail.
Embodiment one
The utility model embodiment provides a kind of atomic frequency standard temperature compensation system, and referring to Fig. 1, this system comprises:
The temperature collect module 102 of the operating ambient temperature of VCXO 101 when being used for obtaining atomic frequency standard work;
Be converted to the temperature compensation module 103 of bucking voltage for the difference that will get access to operating ambient temperature and reference work temperature;
Be used for adopting bucking voltage that the deviation correcting signal of the servo circuit generation of atomic frequency standard is compensated, obtain voltage-controlled voltage, and voltage-controlled voltage is acted on the voltage-controlled conversion module 104 of VCXO 101;
Wherein, temperature collect module 102 is electrically connected with temperature compensation module 103 and VCXO 101 respectively, and voltage-controlled conversion module 104 is electrically connected with the servo circuit (scheming not shown) of temperature compensation module 103, VCXO 101 and atomic frequency standard respectively.
Referring to Fig. 2, temperature collect module 102 comprises thermistor Ra.
Referring to Fig. 2, temperature compensation module 103 comprises: the temperature conversion circuit that is converted to voltage difference for the difference of the operating ambient temperature that temperature collect module 102 is got access to and reference work temperature;
Be used for that voltage difference is carried out difference and amplify, be compensated the operational amplifier A of voltage;
The negative feedback resistor Rw that is used for the yield value of adjusting operational amplifier A;
Be used for regulating by the resistance of control negative feedback resistor Rw the processor of the yield value of operational amplifier A;
Wherein, temperature conversion circuit is electrically connected with temperature collect module 102, the input of operational amplifier A is electrically connected with temperature conversion circuit, the output of operational amplifier A is electrically connected with voltage-controlled conversion module 104, negative feedback resistor Rw is connected between the inverting input and output of operational amplifier A, and negative feedback resistor Rw also is electrically connected with processor.
Further, temperature conversion circuit comprises electric bridge, and electric bridge comprises thermistor Ra, resistance R 1 and two resistance R, and the resistance value of resistance R 1 is corresponding with the reference work temperature, and the temperature coefficient of resistance R 1 is identical with thermistor Ra.
Particularly, temperature conversion circuit comprises electric bridge, and this electric bridge comprises thermistor Ra and the resistance R 1 that resistance value is corresponding with the reference work temperature, and the temperature coefficient of resistance R 1 is identical with thermistor Ra; Know that easily this electric bridge also comprises two resistance R.What the resistance of resistance R 1 was represented is the reference work temperature.Thermistor Ra is affixed on the surface of VCXO 101, the operating ambient temperature during in order to 101 work of perception VCXO.So when the operating ambient temperature no change of VCXO 101, electric bridge is in balance among Fig. 2.The operating ambient temperature of VCXO 101 raises (reduction), and then the resistance of thermistor Ra will diminish (becoming big), and there is voltage difference in the electric bridge two ends so.
Wherein, negative feedback resistor Rw can be digital potentiometer.
Wherein, voltage-controlled conversion module 104 comprises:
Be used for the voltage of bucking voltage and deviation correcting signal is sued for peace, obtain the summing circuit of voltage-controlled voltage;
Be used for the D/A(Digital to Analog Converter that the voltage-controlled voltage of output acts on VCXO 101, digital to analog converter);
Summing circuit is electrically connected with servo circuit and the temperature compensation module 103 of atomic frequency standard respectively, and D/A is electrically connected with summing circuit and VCXO respectively.
The utility model embodiment when VCXO is worked operating ambient temperature and the difference of reference work temperature be converted to voltage, and this voltage compensation obtained voltage-controlled voltage in deviation correcting signal, again voltage-controlled voltage is acted on VCXO, reduced the influence of operating ambient temperature to the output frequency of VCXO, made that the frequency (being the output frequency of atomic frequency standard) of VCXO output is more stable and accurate.
Embodiment two
The utility model embodiment provides a kind of atomic frequency standard, referring to Fig. 3, this atomic frequency standard comprises: VCXO 1, isolated amplifier 2, microwave times frequency mixing module 3, physical location 4, comprehensive module 5, servo circuit 6 and the temperature compensation system of describing as embodiment one 7, wherein comprehensive module 5 respectively with isolated amplifier 2, microwave times frequency mixing module 3 and servo circuit 6 are electrically connected, isolated amplifier 2 is electrically connected with VCXO 1 and microwave times frequency mixing module 3, physical location 4 is electrically connected with microwave times frequency mixing module 3 and servo circuit 6 respectively, and temperature compensation system 7 is electrically connected with VCXO 1 and servo circuit 6 respectively.Wherein, VCXO 1 is used for output original frequency signal; Isolated amplifier 2 is used for the output frequency signal of VCXO 1 being isolated and amplifying; Comprehensive module 5 is for generation of comprehensive modulation signal; Microwave times frequency mixing module 3 is used for the comprehensive modulation signal of the output signal of isolated amplifier 2 and comprehensive module 5 generations is carried out frequency multiplication and mixing simultaneously, to produce the microwave interrogation signals; Physical location 4 is used for the microwave interrogation signals is carried out frequency discrimination, produces light inspection signal; Servo circuit 6 produces correction voltage for light inspection signal being carried out frequency-selecting amplification and square wave shaping and carrying out synchronous phase demodulation with reference signal; By said temperature bucking-out system 7 bucking voltage that obtains is compensated the deviation correcting signal that the servo circuit 6 of atomic frequency standard produces, obtain voltage-controlled voltage, and voltage-controlled voltage is acted on VCXO 1.
The utility model embodiment when VCXO is worked operating ambient temperature and the difference of reference work temperature be converted to voltage, and this voltage compensation obtained voltage-controlled voltage in deviation correcting signal, again voltage-controlled voltage is acted on VCXO, reduced the influence of operating ambient temperature to the output frequency of VCXO, made that the frequency (being the output frequency of atomic frequency standard) of VCXO output is more stable and accurate.
The all or part of step that one of ordinary skill in the art will appreciate that realization above-described embodiment can be finished by hardware, also can instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. an atomic frequency standard temperature compensation system is characterized in that, described system comprises:
The temperature collect module (102) of the operating ambient temperature of VCXO (101) when being used for obtaining atomic frequency standard work;
Be converted to the temperature compensation module (103) of bucking voltage for the difference of the described operating ambient temperature that will get access to and reference work temperature;
Be used for adopting described bucking voltage that the deviation correcting signal of the servo circuit generation of atomic frequency standard is compensated, obtain voltage-controlled voltage, and described voltage-controlled voltage is acted on the voltage-controlled conversion module (104) of described VCXO (101);
Wherein, described temperature collect module (102) is electrically connected with described temperature compensation module (103) and described VCXO (101) respectively, and described voltage-controlled conversion module (104) is electrically connected with the servo circuit of described temperature compensation module (103), described VCXO (101) and described atomic frequency standard respectively.
2. system according to claim 1 is characterized in that, described temperature collect module (102) comprises thermistor Ra.
3. system according to claim 2, it is characterized in that described temperature compensation module (103) comprising: the temperature conversion circuit that is converted to voltage difference for the difference of the described operating ambient temperature that described temperature collect module (102) is got access to and described reference work temperature;
Be used for that described voltage difference is carried out difference and amplify, be compensated the operational amplifier A of voltage;
The negative feedback resistor Rw that is used for the yield value of the described operational amplifier A of adjusting;
Be used for regulating by the resistance of controlling described negative feedback resistor Rw the processor of the yield value of described operational amplifier A;
Wherein, described temperature conversion circuit is electrically connected with described temperature collect module (102), the input of described operational amplifier A is electrically connected with described temperature conversion circuit, the output of described operational amplifier A is electrically connected with described voltage-controlled conversion module (104), described negative feedback resistor Rw is connected between the inverting input and output of described operational amplifier A, and described negative feedback resistor Rw also is electrically connected with described processor.
4. system according to claim 3, it is characterized in that, described temperature conversion circuit comprises electric bridge, described electric bridge comprises thermistor Ra, resistance R 1 and two resistance R, the resistance value of described resistance R 1 is corresponding with described reference work temperature, and the temperature coefficient of described resistance R 1 is identical with described thermistor Ra.
5. system according to claim 3 is characterized in that, described negative feedback resistor Rw is digital potentiometer.
6. system according to claim 1 is characterized in that, described voltage-controlled conversion module (104) comprising:
Be used for the voltage of described bucking voltage and described deviation correcting signal is sued for peace, obtain the summing circuit of described voltage-controlled voltage;
Be used for the digital to analog converter that the described voltage-controlled voltage of output acts on described VCXO (101);
Described summing circuit is electrically connected with servo circuit and the described temperature compensation module (103) of described atomic frequency standard respectively, and described digital to analog converter is electrically connected with described summing circuit and described VCXO respectively.
7. atomic frequency standard, described atomic frequency standard comprises: VCXO (1), isolated amplifier (2), microwave times frequency mixing module (3), physical location (4), comprehensive module (5) and servo circuit (6), wherein said comprehensive module (5) respectively with described isolated amplifier (2), described microwave times frequency mixing module (3) and described servo electricity (6) are electrically connected, described isolated amplifier (2) is electrically connected with described VCXO (1) and described microwave times frequency mixing module (3), described physical location (4) is electrically connected with described microwave times frequency mixing module (3) and described servo circuit (6) respectively, it is characterized in that, described atomic frequency standard also comprises: as each described temperature compensation system (7) of claim 1-6, described temperature compensation system (7) is electrically connected with described VCXO (1) and described servo circuit (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037640 CN203119873U (en) | 2013-01-24 | 2013-01-24 | Atomic frequency standard temperature compensating system and atomic frequency standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037640 CN203119873U (en) | 2013-01-24 | 2013-01-24 | Atomic frequency standard temperature compensating system and atomic frequency standard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119873U true CN203119873U (en) | 2013-08-07 |
Family
ID=48900184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320037640 Expired - Fee Related CN203119873U (en) | 2013-01-24 | 2013-01-24 | Atomic frequency standard temperature compensating system and atomic frequency standard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119873U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410415A (en) * | 2014-11-27 | 2015-03-11 | 江汉大学 | Improved passive atomic frequency scale |
| CN104410410A (en) * | 2014-11-27 | 2015-03-11 | 江汉大学 | Pulse signal source device |
| CN110113005A (en) * | 2019-04-11 | 2019-08-09 | 深圳市金科泰通信设备有限公司 | 5G standard source high-frequency crystal oscillator circuit |
| CN114114882A (en) * | 2020-08-26 | 2022-03-01 | 北京华信泰科技股份有限公司 | Temperature control device and atomic clock |
-
2013
- 2013-01-24 CN CN 201320037640 patent/CN203119873U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410415A (en) * | 2014-11-27 | 2015-03-11 | 江汉大学 | Improved passive atomic frequency scale |
| CN104410410A (en) * | 2014-11-27 | 2015-03-11 | 江汉大学 | Pulse signal source device |
| CN104410410B (en) * | 2014-11-27 | 2017-09-01 | 江汉大学 | A kind of pulse signal source device |
| CN110113005A (en) * | 2019-04-11 | 2019-08-09 | 深圳市金科泰通信设备有限公司 | 5G standard source high-frequency crystal oscillator circuit |
| CN114114882A (en) * | 2020-08-26 | 2022-03-01 | 北京华信泰科技股份有限公司 | Temperature control device and atomic clock |
| CN114114882B (en) * | 2020-08-26 | 2023-06-30 | 北京华信泰科技股份有限公司 | Temperature control device and atomic clock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103138756B (en) | A kind of atomic frequency standard servo method with temperature-compensating and circuit | |
| CN203119873U (en) | Atomic frequency standard temperature compensating system and atomic frequency standard | |
| CN105242233A (en) | Fast calibration method of single-phase electric energy meter | |
| CN101018056B (en) | Rb atom frequency standard digital servo device | |
| CN103728494B (en) | A kind of resonance frequency is measured and tracker and method | |
| CN103149409B (en) | High-precision electrical signal measurement device and method | |
| CN103441760A (en) | High-precision annular oscillator, and frequency calibration circuit and method thereof | |
| CN108880535A (en) | Sensor interface circuitry based on oscillator | |
| CN103297047A (en) | Atomic frequency standard and servo locking method | |
| CN102662107A (en) | Micro control unit (MCU) built-in reference temperature compensation method based on system on chip (SOC) electric meter | |
| CN203492007U (en) | High-precision ring oscillator and frequency calibration circuit thereof | |
| CN203166874U (en) | Electronic circuit of atomic frequency standard | |
| CN203166871U (en) | Improved atomic frequency standard servo system | |
| CN207218667U (en) | A kind of satellite navigation time complexity curve device | |
| CN202393907U (en) | VCO linearity corrector | |
| CN104122438B (en) | A kind of wattless power measurement circuit | |
| CN203550961U (en) | Low-cost flexible gyroscopic force balancing circuit | |
| US9838023B2 (en) | Slow-clock calibration method and unit, clock circuit, and mobile communication terminal | |
| CN203366002U (en) | Atomic clock | |
| CN202171442U (en) | Intelligent gap measuring sensor | |
| CN203224794U (en) | Temperature control device free of magnetic effect used in cesium optical pump weak magnetic detection system | |
| CN203166872U (en) | Atom frequency scale restoration system and atom frequency scale with the system | |
| CN101359906B (en) | Article locating detector of capacitance touching control panel, and article locating method | |
| CN102761334A (en) | Intelligent compensation device and method for temperature coefficient of rubidium atomic frequency standard | |
| CN103326719A (en) | Voltage controlled crystal oscillating device used in atomic frequency standard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140124 |