CN207133596U - A kind of time-domain signal source device based on constant temperature - Google Patents
A kind of time-domain signal source device based on constant temperature Download PDFInfo
- Publication number
- CN207133596U CN207133596U CN201720784518.8U CN201720784518U CN207133596U CN 207133596 U CN207133596 U CN 207133596U CN 201720784518 U CN201720784518 U CN 201720784518U CN 207133596 U CN207133596 U CN 207133596U
- Authority
- CN
- China
- Prior art keywords
- module
- resistance
- temperature
- voltage
- 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
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
It the utility model is related to atomic clock technology, and in particular to a kind of time-domain signal source device based on constant temperature, including reference source VCXO, radiofrequency signal generation module, quantized system and servo loop；Also include control sequential and module, logic gate array, gps signal receiver, temperature control modules, gain control module and voltage-controlled correcting module occurs；Control sequential occurs module and connects reference source VCXO, gps signal receiver, radiofrequency signal generation module, logic gate array, servo loop and quantized system respectively；Radiofrequency signal generation module is connected with quantized system；Quantized system connects servo loop；Servo loop connects logic gate array and voltage-controlled correcting module respectively；Voltage-controlled correcting module is sequentially connected gain control module and reference source VCXO；Temperature control modules are connected with reference source VCXO.The constant temperature signal source device meets the requirement of atomic clock miniaturization, realizes GPS synchronous calibrations, and servo-controlled links are concentrated on and completed on small processor by rational SECO.
Description
Technical field
The utility model belongs to atomic clock technical field, more particularly to a kind of time-domain signal source device based on constant temperature.
Background technology
In inactive type rubidium atom frequency scale, physical system is the core component of whole atomic frequency standard, and it is steady that it provides a frequency
Atomic resonance Absorption Line fixed, line width is narrower.After comprehensive modulate, the band of quartz oscillator is come from caused by electronic circuit
The microwave interrogation signals of modulation act on physical system, after quantum frequency discrimination, the place by servo circuit to quantum frequency discrimination information
Reason, most the output frequency of local oscillator is locked in the hyperfine 0-0 transition centers frequency of ground state of rubidium atom at last.It is existing most of
Servo circuit synchronizes phase demodulation according to the comprehensive synchronous phase discrimination signal provided to quantum frequency discrimination signal, and is believed according to identified result
Breath realizes that the closed loop of complete machine locks by the way of the independent voltage-controlled local oscillators of D/A, higher eventually through local oscillator output stability
Frequency signal.In today of digitlization popularization, the requirement minimized plus society to atomic clock, and GPS synchronous calibrations
Promote, harsher requirement is proposed to existing atomic clock, it is necessary to which servo-controlled links to be concentrated on to small place
Task is completed by rational SECO on reason device.But most of existing atomic clock servo circuit part is all or module
Change the situation of " individual soldier fights ".
Utility model content
The purpose of this utility model is to provide a kind of constant temperature signal source device of atomic clock control sequential, can be by servo control
The links of system are concentrated on small processor and completed by rational SECO.
To achieve the above object, the technical solution adopted in the utility model is：A kind of time-domain signal source dress based on constant temperature
Put, including reference source VCXO, radiofrequency signal generation module, quantized system and servo loop；Also include control sequential occur module,
Logic gate array, gps signal receiver, temperature control modules, gain control module and voltage-controlled correcting module；Control sequential is sent out
Raw module connect respectively reference source VCXO, gps signal receiver, radiofrequency signal generation module, logic gate array, servo loop and
Quantized system；Radiofrequency signal generation module is connected with quantized system；Quantized system connects servo loop；Servo loop connects respectively
Logic gate array and voltage-controlled correcting module；Voltage-controlled correcting module is sequentially connected gain control module and reference source VCXO；Temperature control
Molding block is connected with reference source VCXO.
In the above-mentioned time-domain signal source device based on constant temperature, quantized system include spectrum lamp, speed-sensitive switch, magnetic cup,
Integrated filtering resonance bubble and interior magnetic field；The input of logic gate array connects control sequential and module and servo loop occurs respectively,
Output end connects servo loop；Module output end connection speed-sensitive switch occurs for control sequential.
In the above-mentioned time-domain signal source device based on constant temperature, temperature control modules include voltage source, temperature acquisition mould
Block, difference amplifier A, negative feedback resistor Rw and heating coil loop；Temperature collect module connects voltage source respectively and difference is put
Big device A, difference amplifier A connect negative feedback resistor Rw, heating coil loop and voltage source respectively.
In the above-mentioned time-domain signal source device based on constant temperature, temperature collect module include two resistance R, resistance R1 and
The electric bridge of resistance Rk compositions；And two resistance R and resistance R1 are the resistance with identical temperature coefficient, its resistance and resistance Rk
Quite.
In the above-mentioned time-domain signal source device based on constant temperature, resistance Rk is thermistor, and is affixed on temperature control mould
The surface of block, for perceiving actual working environment temperature.
In the above-mentioned time-domain signal source device based on constant temperature, resistance Rw uses digital potentiometer.
In the above-mentioned time-domain signal source device based on constant temperature, temperature control modules are placed in reference source VCXO.
In the above-mentioned time-domain signal source device based on constant temperature, voltage-controlled correcting module includes electronic bridge measurement module, voltage
Follower A1, A2, difference amplifier A3；Electronic bridge measurement module includes two resistance R4, resistance R0Electric bridge is formed with resistance Rk1,
Two resistance R4 and resistance R0It is suitable with resistance Rk1 for the resistance with identical temperature coefficient, its resistance.
In the above-mentioned time-domain signal source device based on constant temperature, gain control module is that gain linearity adjusts circuit A4；
It is connected with difference amplifier A3 output end.
In the above-mentioned time-domain signal source device based on constant temperature, resistance Rk1 is thermistor, resistance R0For thermistor
Sensor.
The beneficial effects of the utility model are：The constant temperature signal source device meets the requirement of atomic clock miniaturization, passes through
Atomic time parameter, Δ t is obtained, produces each road sequential of detection, it is possible to achieve the amendment of gps signal, keep the work of constant temperature
Environment.
Brief description of the drawings
Fig. 1 is time-domain signal source device circuit theory diagrams of the utility model one embodiment based on constant temperature；Wherein, 1- amounts
Subsystem, 2- spectrum lamps, 3- speed-sensitive switches, 4- magnetic cups, the resonance of 5- integrated filterings are steeped, magnetic field in 6-；
Fig. 2 is that the utility model one embodiment odd number NOT gate series signals transmit schematic diagram；
Fig. 3 is that the utility model one embodiment ring oscillator seals in atomic clock system schematic diagram；
Fig. 4 is the detection, modulation, synchronous phase demodulation clock signal of the utility model one embodiment control sequential generation module
Schematic diagram；
Fig. 5 is the pulse of the utility model one embodiment GPS second, VCXO frequency signal timing diagrams；
Fig. 6 is the total SECO figure of the utility model one embodiment；
Fig. 7 is the utility model one embodiment temperature control modules circuit theory diagrams；Wherein, 7- temperature acquisitions；
Fig. 8 is the utility model one embodiment gain control module circuit theory diagrams.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from beginning to end
As element or with same or like function element.The embodiments described below with reference to the accompanying drawings are exemplary, only
For explaining the utility model, and can not be construed to limitation of the present utility model.
Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model.For
Simplify disclosure of the present utility model, hereinafter the part and setting of specific examples are described.They are only example, and
And purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals and/or word
It is female.This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or setting
Relation.In addition, the utility model provides the example of various specific techniques and material, but those of ordinary skill in the art can
To recognize the use of the applicability of other techniques and/or other materials.In addition, fisrt feature described below is special second
Levy it " on " structure can include the first and second features and be formed as the embodiment that directly contacts, other spy can also be included
The embodiment that sign is formed between the first and second features, such first and second feature may not be direct contact.
, it is necessary to which explanation, unless otherwise prescribed and is limited, term " connected " " connection " should in description of the present utility model
It is interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can be direct
It is connected, can also be indirectly connected by intermediary, can be according to specific feelings for those of ordinary skill in the related art
Condition understands the concrete meaning of above-mentioned term.
The present embodiment realized using following technical scheme, a kind of time-domain signal source device based on constant temperature, including reference
Source VCXO, radiofrequency signal generation module, quantized system and servo loop；Also include control sequential occur module, logic gate array,
Gps signal receiver, temperature control modules, gain control module and voltage-controlled correcting module；Control sequential occurs module and connected respectively
Connect reference source VCXO, gps signal receiver, radiofrequency signal generation module, logic gate array, servo loop and quantized system；Penetrate
Frequency signal generator module is connected with quantized system；Quantized system connects servo loop；Servo loop connects logic gate array respectively
With voltage-controlled correcting module；Voltage-controlled correcting module is sequentially connected gain control module and reference source VCXO；Temperature control modules and ginseng
Examine source VCXO connections.
Further, quantized system includes spectrum lamp, speed-sensitive switch, magnetic cup, integrated filtering resonance bubble and interior magnetic field；Gate
The input of array connects control sequential and module and servo loop, output end connection servo loop occurs respectively；Control sequential is sent out
Raw module output end connection speed-sensitive switch.
Further, temperature control modules include voltage source, temperature collect module, difference amplifier A, negative feedback resistor Rw and
Heating coil loop；Temperature collect module connects voltage source and difference amplifier A respectively, and difference amplifier A connects negative anti-respectively
Feed resistance Rw, heating coil loop and voltage source.
Further, temperature collect module includes the electric bridge that two resistance R, resistance R1 and resistance Rk are formed；And two resistance R
And resistance R1 is the resistance with identical temperature coefficient, its resistance is suitable with resistance Rk.
Further, resistance Rk is thermistor, and is affixed on the surface of temperature control modules, for perceiving actual working environment
Temperature.
Further, resistance Rw uses digital potentiometer.
Further, temperature control modules are placed in reference source VCXO.
Further, voltage-controlled correcting module includes electronic bridge measurement module, voltage follower A1, A2, difference amplifier A3；Electric bridge
Temperature measurement module includes two resistance R4, resistance R0Electric bridge, two resistance R4 and resistance R are formed with resistance Rk10For with identical
The resistance of temperature coefficient, its resistance are suitable with resistance Rk1.
Further, gain control module is that gain linearity adjusts circuit A4；It is connected with difference amplifier A3 output end.
Further, resistance Rk1 is thermistor, resistance R0For thermistor (temperature) sensor.
When it is implemented, as shown in figure 1, being related to conventional atom clock technology, the frequency signal of reference source VCXO outputs is through place
Reason delivers to radiofrequency signal generation module generation microwave interrogation signals and acts on quantized system, is produced according to traditional quantum frequency discrimination technology
Raw quantum frequency discrimination signal is delivered to servo loop, and it is direct current voltage control signal feedback effect again that servo loop, which produces quantum deviation correcting signal,
In VCXO, its output frequency is changed, then closed loop is formed through above-mentioned distance, most the output frequency of local oscillator is locked in collection at last
Into in the hyperfine 0-0 transition centers frequency of ground state of the atom in the resonance bubble that filters.
A kind of time-domain signal source device based on constant temperature of the present embodiment, including reference source VCXO, radiofrequency signal generation module,
Quantized system, servo loop and voltage-controlled correcting module；Also include control sequential and module, logic gate array, gps signal reception occurs
Machine, temperature control modules, gain control module；Control sequential occurs module and connects reference source VCXO, gps signal reception respectively
Machine, radiofrequency signal generation module, logic gate array, servo loop and quantized system；Radiofrequency signal generation module and quantized system
Connection；Quantized system connects servo loop；Servo loop connects logic gate array and voltage-controlled correcting module respectively；Temperature control mould
Block is connected with reference source VCXO；Reference source VCXO is sequentially connected gain control module and voltage-controlled correcting module.The course of work is as follows：
First, time parameter measures：
Logic gate array is occurred by control sequential, produces the N number of NOT gate of odd level, and its input, which receives, comes from servo loop
Signal, the speed-sensitive switch that its output end is fed back in the spectrum lamp module of quantized system, to control its state ' opening ' or
' pass '.
As shown in figure 1, when time-domain signal source device is started working, it is assumed that the speed-sensitive switch in this moment spectrum lamp module is
' opening ' state, then, the light of spectrum lamp excitation after speed-sensitive switch by being directly entered in integrated resonance optical filtering bubble, in conventional atom
In the presence of frequency marking principle, the quantum frequency discrimination of quantized system is completed.The signal that quantum frequency discrimination signal obtains through servo loop is sent into
Logic gate array, because spectrum lamp excitation light of upper moment can pass through integrated filtering resonance bubble, so the moment produces through servo loop
Raw signal is high level ' 1 ', becomes low level ' 0 ' after odd level logic inverter, and the high speed acted in spectrum lamp module is opened
Close, be ' pass ' state.Circulate successively, ' 0 ' change that occurs ' 1 '-' 0 '-' 1 ' in the output end of logic gate array ...
Change, detected by frequency signal, we can show that corresponding time parameter delivers to control sequential and module occurs.
Odd number NOT gate is produced by microprocessor to be serially connected, can produce self-oscillation, and the circuit forms a ring
Shape oscillator.It is t if the number N of NOT gate is odd number in circuit, between the mean transit delay of each gate circuit is slow, ring oscillator
Caused cycle of oscillation is T.It is assumed that the initial state of certain moment A1 point is 1, then after 1 transmission delay t, A2 points are changed into 0, then pass through
Cross 1 transmission delay t, A3 point and be changed into 1 ..., after the N number of transmission delay Nt of odd number, initial state ' 1 ' is changed into ' 0 '.Same reason：Just
State ' 0 ' is changed into ' 1 '.Signal is transmitted as shown in Fig. 2 can obtain：
T0=2Nt (1)
After above-mentioned ring oscillator seals in atomic clock system, as shown in figure 3, being detected in Fig. 3 frequency signal test side
The signal period arrived：
T1=2 (Nt+ Δs t) (2)
Wherein, Δ t is the atomic time parameter that we need to know.
By formula (1) and (2), can be derived from：
Δ t=(T1-T0)/2 (3)
Δ t in above formula deploys extremely important for further work：As shown in Figure 1, it can be appreciated that Δ t is by quantum
The circuit of system and periphery determines, and the response time of electronic circuit is very fast, has generally also been reached more than 10nS magnitudes,
So the key for determining Δ t values should be such as the quantized system part in Fig. 1.After Δ t in the formula that obtains (3), it is sent
To control sequential generation module.
2nd, the generation of each road sequential of detection：
Control sequential generation module produces three road clock signals after above-mentioned time parameter Δ t is obtained：Detection, adjust
System, synchronous phase demodulation, as shown in Figure 4.
Need to determine above-mentioned modulation, the frequency values of synchronous phase discrimination signal according to time parameter Δ t hereinAnd detection signal is then 4 ν.Wherein：(1), caused modulated signal delivers to radiofrequency signal generation module, is used for
Complete " the comprehensive modulation " in conventional atom clock technology；(2), the synchronous phase demodulation letter of caused same phase synchronous with above-mentioned modulated signal
Number servo loop is delivered to, for completing " synchronous phase demodulation " function in conventional atom clock technology；(3), caused and above-mentioned modulation,
The detection signal of the synchronous frequency multiplication relation of phase discrimination signal 4 delivers to servo loop, the detection for aftermentioned each function sequential.
As shown in figure 4, it is divided into four kinds of situations：
1st, the frequency f of microwave interrogation signals is more than (being less than) atomic transition center frequency fo and in Atomic absorption line width scope
Within when, i.e. f>fo(f<Fo), the frequency one of unlocked frequency signal shown in the Fig. 4 obtained through quantum frequency discrimination and modulated signal
Cause, only because atom relaxation time and phase time are delayed and the difference in phase be present.
2nd, when the frequency of microwave interrogation signals is equal to atomic transition center frequency, i.e. f=fo, obtained signal frequency is former
2 times of modulated signal, now atomic frequency standard is in the lock state, and the locking signal shown in Fig. 4 occurs.
3rd, when the frequency of microwave interrogation signals is significantly away from atomic transition center frequency, i.e. f is introduced into effective quantum mirror
Within the scope of frequency Absorber Bandwidth, the signal obtained after processing will be a lasting level, and now atomic frequency standard is in lock-off
State.
4th, another special situation is exactly that spectrum lamp has the process of a relaxation oscillations, now from quantized system frequency discrimination
Output end can detect the irregular signal waveform of high frequency, until spectrum lamp enters normal operating conditions, and whole relaxation oscillation
Process duration is by specific complete machine cold conditions or hot determines.
For these four situations, triggering arteries and veins is used as using the ν of detection sequential 4 of 4 multiple-frequency modulation signals continuous 4 rising edges
Punching, level sampling is carried out to the signal after quantum frequency discrimination respectively, and be recorded as D1, D2, D3, D4 respectively.
For the first situation, there are 3 low levels, 1 high level in 4 level of record.Servo loop is according to tradition
The voltage-controlled deviation correcting technology of atomic clock, send correction voltage signal to voltage-controlled correcting module and obtain corresponding single-point direct current correction voltage work
For VCXO；
For second of situation, the level of record has relational expression：D1=D3 and D2=D4.Now servo loop will not be made
For voltage-controlled correcting module, i.e. VCXO will not be by direct current correction voltage effect；
For the third situation, the level of record has relational expression：D1=D2=D3=D4.Now servo loop will send and entangle
Bias-voltage signal to voltage-controlled correcting module, voltage-controlled correcting module will obtain corresponding direct current according to preset stepped parameter and get together electricity
The continuous frequency sweep for acting on VCXO, realizing to VCXO of pressure holding.
For the 4th kind of situation, because this moment spectrum lamp is in relaxation oscillation process, the signal high frequency at quantum frequency discrimination
It is irregular, in the data that multigroup continuous 4 sampling time sequence rising edges sample to obtain it is possible to that the first situation or second occurs
Kind situation or the third situation, therefore can not be judged by sampled level, the method for solution is：Due in this link, institute
What is judged is whether atomic frequency standard is in the lock state, and the 4th kind of situation substantially illustrates that atomic frequency standard is not in locking,
In the detection sequential of 4 multiple-frequency modulation signal frequencies of continuous 4 rising edges triggering, can set more than one group (on continuous 4
It is one group to rise along triggering) judgment mode of sampling, atom frequency standard locking condition adjudgement is made respectively to multigroup obtained level of sampling,
And multigroup judgement is done and computing, final lock-out state judged result is obtained, this makes it possible to solve the 4th kind of feelings well
The problem of condition is brought.Now servo loop will not act on voltage-controlled correcting module, i.e. VCXO will not be made by direct current correction voltage
With.
3rd, GPS is corrected：
As shown in figure 1, GPS obtains the signal that gps satellite is sent, pps pulse per second signal is obtained after converted processing and is sent
Occur to control sequential in module, the frequency signal of VCXO outputs is counted and obtained in the range of a cycle of pulse per second (PPS)
Obtain corresponding correction value and deliver to servo loop, and voltage is got together by the corresponding direct current of voltage-controlled correcting module output and acted on
VCXO；Corresponding sequential is as shown in Figure 5.
GPS second pulse gate signal, width T.In high level, after the t1 times, first arteries and veins of VCXO frequency signals
The rising edge of punching, make counter Enable Pin effective, start VCXO frequency signals and count, after the T seconds, the low electricity of GPS second pulse gate
It is flat not stop counting when arriving, after the t2 times, when then and the rising edge of VCXO frequency signals that arrives arrive when count
Number device is closed.Here the complete cycle of the time width, exactly equal to VCXO frequency signals of enable signal (actual signal strobe)
Number.According to above-mentioned relevant parameter：T, t1, t2, N, corresponding VCXO frequencies letter can be obtained according to traditional GPS time differences comparison technology
Number correction value.
4th, the control of total sequential：As shown in fig. 6, enabled, low level representative stopping is represented in figure with high level.
5th, control module：
1st, temperature control modules：Include Temperature Controlling Chip, for temperature control, and thermistor, for thermometric.By centre
Reason device control can be placed in high stability crystal oscillator VCXO temperature control module with set temperature value T due to whole temperature control modules, so
Central processing unit can set corresponding operating ambient temperature and obtain actual operating ambient temperature information.Its principle is such as
Shown in Fig. 7：Two of which R and R1 are the resistance with identical temperature coefficient, and its resistance should select suitable with Rk.Here R1
Value reflect actual working environment temperature T.Rk is a thermistor, and it is affixed on the surface of temperature control module, to perceive reality
The operating ambient temperature T on border.Therefore when operating ambient temperature T is unchanged, electric bridge is in balance in Fig. 7, is delivered to heating coil
The temperature-compensated voltage value of loop is 0.Once operating ambient temperature T changes, thermistor Rk resistance will be with temperature liter
It is high and diminish, reduced with temperature and become big, then electric bridge both ends have voltage difference, are changed into after operational amplifier A differential amplification
Temperature-compensated voltage is delivered to voltage source, while exports and give traditional heating wire coil loop.The gain amplifier of whole circuit is by transporting
The negative feedback resistor Rw regulations of amplifier are calculated, Rw is a digital potentiometer, is mended by adjusting Rw resistance to reach foregoing circuit
Repay the factor and change function.
2nd, gain adjustment module：As shown in fig. 7, comprises gain control module and voltage-controlled correcting module, wherein voltage-controlled amendment
The bridge temperature measurement module of module is consistent with the temperature collect module principle in temperature control modules.Bridge in voltage-controlled correcting module
Thermometric is mainly by two resistance identicals R4, a preset temperature value thermistor (temperature) sensor Ro and temperature-measuring thermistor Rk1 groups
Into.Preset temperature value thermistor (temperature) sensor Ro determines VCXO operating ambient temperature.When VCXO operating ambient temperatures are constant
When, i.e., thermistor Rk1 measured values are equal with preset value Ro, and now resistance bridge A, B ends output voltage difference will be 0, whole pressure
It is 0 to control module output end Uout outputs.When VCXO operating ambient temperatures change, then A, B end of electric bridge are formed certain
Voltage difference, A3 is delivered to by voltage follower A1 and A2 transmission and carries out differential amplification, it is contemplated that the voltage difference after amplification can
Effective collection, so the output end in differential amplification A3 adds a gain linearity regulation circuit A4.Obtained voltage difference
Uout is with after voltage-controlled voltage summation caused by voltage-controlled correcting module, delivering to VCXO modules.
It should be appreciated that the part that this specification does not elaborate belongs to prior art.
Although describe specific embodiment of the present utility model, those of ordinary skill in the art above in association with accompanying drawing
It should be appreciated that these are merely illustrative of, various deformation or modification can be made to these embodiments, without departing from this practicality
New principle and essence.The scope of the utility model is only limited by the claims that follow.
Claims (10)
1. a kind of time-domain signal source device based on constant temperature, including reference source VCXO, radiofrequency signal generation module, quantized system and
Servo loop；Characterized in that, also including control sequential occurs module, logic gate array, gps signal receiver, temperature control
Module, gain control module and voltage-controlled correcting module；Module connects reference source VCXO respectively, gps signal connects for control sequential generation
Receipts machine, radiofrequency signal generation module, logic gate array, servo loop and quantized system；Radiofrequency signal generation module and quantum system
System connection；Quantized system connects servo loop；Servo loop connects logic gate array and voltage-controlled correcting module respectively；Voltage-controlled amendment
Module is sequentially connected gain control module and reference source VCXO；Temperature control modules are connected with reference source VCXO.
2. the time-domain signal source device based on constant temperature as claimed in claim 1, it is characterised in that quantized system includes spectrum
Lamp, speed-sensitive switch, magnetic cup, integrated filtering resonance bubble and interior magnetic field；The input of logic gate array connects control sequential hair respectively
Raw module and servo loop, output end connection servo loop；Module output end connection speed-sensitive switch occurs for control sequential.
3. the time-domain signal source device based on constant temperature as claimed in claim 1, it is characterised in that temperature control modules include electricity
Potential source, temperature collect module, difference amplifier A, negative feedback resistor Rw and heating coil loop；Temperature collect module connects respectively
Voltage source and difference amplifier A, difference amplifier A connect negative feedback resistor Rw, heating coil loop and voltage source respectively.
4. the time-domain signal source device based on constant temperature as claimed in claim 3, it is characterised in that temperature collect module includes two
Individual resistance R, resistance R1 and resistance Rk compositions electric bridge；And two resistance R and resistance R1 are the electricity with identical temperature coefficient
Resistance, its resistance are equal with resistance Rk.
5. the time-domain signal source device based on constant temperature as claimed in claim 4, it is characterised in that resistance Rk is thermistor,
And the surface of temperature control modules is affixed on, for perceiving actual working environment temperature.
6. the time-domain signal source device based on constant temperature as claimed in claim 3, it is characterised in that resistance Rw uses digital current potential
Meter.
7. the time-domain signal source device based on constant temperature as claimed in claim 1, it is characterised in that temperature control modules are placed in ginseng
Examine in the VCXO of source.
8. the time-domain signal source device based on constant temperature as claimed in claim 1, it is characterised in that voltage-controlled correcting module includes electricity
Bridge temperature measurement module, voltage follower A1, A2, difference amplifier A3；Electronic bridge measurement module includes two resistance R4, resistance R0And electricity
Hinder Rk1 composition electric bridges, two resistance R4 and resistance R0For the resistance with identical temperature coefficient, its resistance and resistance Rk1 phases
Deng.
9. the time-domain signal source device based on constant temperature as claimed in claim 8, it is characterised in that gain control module is gain
Linear regulating circuit A4；It is connected with difference amplifier A3 output end.
10. the time-domain signal source device based on constant temperature as claimed in claim 8, it is characterised in that resistance Rk1 is temperature-sensitive electricity
Resistance, resistance R0For thermistor (temperature) sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784518.8U CN207133596U (en) | 2017-06-30 | 2017-06-30 | A kind of time-domain signal source device based on constant temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784518.8U CN207133596U (en) | 2017-06-30 | 2017-06-30 | A kind of time-domain signal source device based on constant temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207133596U true CN207133596U (en) | 2018-03-23 |
Family
ID=61632530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720784518.8U Expired - Fee Related CN207133596U (en) | 2017-06-30 | 2017-06-30 | A kind of time-domain signal source device based on constant temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207133596U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459718A (en) * | 2018-12-10 | 2019-03-12 | 中国电力科学研究院有限公司 | Surge voltage standard wave source |
| CN114415777A (en) * | 2021-12-30 | 2022-04-29 | 北京无线电计量测试研究所 | Method and circuit for compensating C field current and reducing rubidium clock temperature coefficient |
-
2017
- 2017-06-30 CN CN201720784518.8U patent/CN207133596U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459718A (en) * | 2018-12-10 | 2019-03-12 | 中国电力科学研究院有限公司 | Surge voltage standard wave source |
| CN114415777A (en) * | 2021-12-30 | 2022-04-29 | 北京无线电计量测试研究所 | Method and circuit for compensating C field current and reducing rubidium clock temperature coefficient |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102412830B (en) | The method and apparatus of clock signal synthesis | |
| CN107315338A (en) | A kind of chronometer time correcting device | |
| CN105867107B (en) | A kind of low power consumption high-precision time dissemination system | |
| CN103176400B (en) | Intelligent ammeter clock calibration method | |
| CN102291134B (en) | Loop response time measuring device and method used for atomic frequency standard | |
| CN105049040B (en) | A kind of method that Atomic Clocks Based on Coherent Population Trapping output frequency is corrected using GNSS | |
| CN203377841U (en) | Satellite-based crystal oscillator taming apparatus for time service | |
| CN101984559B (en) | Method for improving accuracy of standard frequency of rubidium atoms | |
| CN107783412A (en) | Two photon transition rubidium atomic clock | |
| CN102006068A (en) | Improved rubidium atom frequency scale | |
| CN207133596U (en) | A kind of time-domain signal source device based on constant temperature | |
| CN207218667U (en) | A kind of satellite navigation time complexity curve device | |
| CN102035549A (en) | Synchronous phase discriminating device and method of rubidium atomic frequency standard | |
| CN107896106A (en) | Adjust the phase of digital phase locked loop | |
| CN104485954A (en) | Control method for time equipment and time equipment | |
| CN103338036B (en) | Based on the frequency signal link control method of atomic clock of phase group process | |
| CN107479358A (en) | A kind of signal generator unit | |
| CN202075347U (en) | Loop oscillation period measure equipment used for atom frequency mark | |
| CN207216296U (en) | A kind of constant temperature sequential generating means based on VCXO | |
| CN107543960A (en) | A kind of high stability crystal oscillator measurement apparatus | |
| CN102545778B (en) | Closed-loop temperature compensation method and device for clock crystal oscillator | |
| CN112731788B (en) | Satellite-borne clock system | |
| CN206251105U (en) | For the VCXO soft-lock phase devices of base station | |
| CN107846219A (en) | A kind of modified CPT atomic state resonator systems | |
| CN214954554U (en) | Satellite-borne clock system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20190630 |