CN205787961U - Strontium atom light clock temperature control system signal regulating device - Google Patents
Strontium atom light clock temperature control system signal regulating device Download PDFInfo
- Publication number
- CN205787961U CN205787961U CN201620501042.8U CN201620501042U CN205787961U CN 205787961 U CN205787961 U CN 205787961U CN 201620501042 U CN201620501042 U CN 201620501042U CN 205787961 U CN205787961 U CN 205787961U
- Authority
- CN
- China
- Prior art keywords
- circuit
- electric capacity
- feet
- connect
- resistance
- 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
Abstract
A kind of strontium atom light clock temperature control system signal regulating device, has: the thermo-electromotive force that produces to compensate the fluctuation due to temperature and the cold junction compensation circuit that produces auxiliary voltage value at cold end, the input of the output termination first-order filtering circuit of this circuit；Break detection circuit, the input of the output termination first-order filtering circuit of this circuit；Amplifying circuit, the outfan of the input termination first-order filtering circuit of this circuit；Second-order filter circuit, the outfan of the input termination amplifying circuit of this circuit；Voltage follower circuit, the input of the input termination second-order filter circuit of this circuit；This utility model simple in construction, low cost, high efficiency, can effectively be converted to weak voltage signals can be applicable at strontium atom light clock temperature control system by the voltage signal of data collecting card identification.
Description
Technical field
This utility model belongs to data processing equipment or equipment technical field, is specifically related to a kind of strontium atom light clock temperature
Ore-controlling Role signal regulating device.
Background technology
Strontium atom light clock is the contenders of Time and frequency standard of future generation, owing to the strontium under room temperature is solid-state, and
It is desirable that the strontium atom of gaseous state in strontium light master slave system, accordingly, it would be desirable to solid-state strontium under room temperature through 500 degrees Celsius
The high temperature strontium stove heating of left and right, makes strontium atom with the speed of hundreds of metre per second (m/s) and have certain angle of divergence and spray from strontium stove
Gushing, the atom of ejection eventually enters in Magneto-Optical Trap and is captured, for improving the strontium atom capture at magneto-optic well region
Efficiency, needs to allow strontium atom pass through collimator, collimates it, in order to prevent gaseous state strontium from meeting in alignment procedure
Condensation knot, still needs to collimation device and heats.And when the temperature of collimator is less than or equal to the temperature of strontium stove, strontium
The atom that stove flies out easily condenses blocking collimator tube, therefore, in experimentation, it would be desirable to ensure collimator temperature
Spend higher certain value than strontium furnace temperature all the time.In the method that at present laboratory uses, in order to keep strontium stove and collimator it
Between the temperature difference, typically by Artificial Control, at set intervals it is carried out heating/cooling.Work due to strontium stove
Make temperature at 500 degrees centigrade, and also need to during actual experiment according to practical situation, this value is adjusted, institute
To control the temperature of heating furnace to expend very much time and the thing of manpower by being one.For problem above, I
Devise the temperature control system of strontium atom light master slave system heating furnace based on Labview and peripheral hardware, it is achieved strontium light
The efficiently and accurately temperature control of clock heating system.This utility model is the signal condition part of this system, the main merit realized
Can be that the weak voltage signals collected by thermocouple is converted to suitably can be by the voltage of data collecting card identification
Signal, utilizes data collecting card to transmit to computer.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned generation gaseous state strontium atom device, carries
For a kind of reasonable in design, simple in construction, low cost, high efficiency, being converted to by weak voltage signals can be by data acquisition
The strontium atom light clock temperature control system signal regulating device of truck identification.
Solve above-mentioned technical problem and the technical scheme is that have: produce due to the fluctuation of temperature to compensate
Thermo-electromotive force and cold end produce auxiliary voltage value cold junction compensation circuit, this circuit output termination first-order filtering electricity
The input on road；Break detection circuit, the input of the output termination first-order filtering circuit of this circuit；Amplifying circuit,
The outfan of the input termination first-order filtering circuit of this circuit；Second-order filter circuit, the input termination of this circuit is amplified
The outfan of circuit；Voltage follower circuit, the input of the input termination second-order filter circuit of this circuit.
Cold junction compensation circuit of the present utility model is: 7 feet of integrated circuit U3 connect signal input part, 4 feet and 5
One end of foot ground connection shunt-wound capacitance C12,2 feet connect the other end of the negative pole shunt-wound capacitance C12 of 12V power supply；Integrated
The model of circuit U 3 is LT1025.
Amplifying circuit of the present utility model is: 3 feet of integrated circuit U1 connect one end of electric capacity C5,2 feet by electricity
Resistance R8 ground connection and connect second-order filter circuit by resistance R7 and variable resistance RS1,4 feet connect one end of electric capacity C9
Connect one end of electric capacity C3 and the positive pole of electric capacity C1 ground connection with the negative pole of electric capacity C11,7 feet, 6 feet connect second order filter
Wave circuit, the negative pole of electric capacity C1, the other end of electric capacity C3, the other end of electric capacity C9, the positive pole of electric capacity C11
Ground connection；The model of integrated circuit U1 is AD707.
First-order filtering circuit of the present utility model is: the other end of a terminating resistor R2 of resistance R4, another termination
One end of electric capacity C5 and amplifying circuit, the other end ground connection of electric capacity C5.
Second-order filter circuit of the present utility model is: 3 feet of integrated circuit U2A are by resistance R3 ground connection and pass through
Resistance R1 connects voltage follower circuit, 2 feet connect one end of electric capacity C6 and connect one end of electric capacity C8 also by resistance R6
Connect 6 feet of integrated circuit U1 by resistance R5,13 feet connect one end of electric capacity C4 and the positive pole of electric capacity C2 and
The positive pole of 12V power supply, 4 feet connect one end of electric capacity C7 and the negative pole of electric capacity C10 and the negative pole of 12V power supply, 1
Foot connects voltage follower circuit, another termination voltage follower circuit of electric capacity C8, the negative pole of electric capacity C2, electric capacity C4
The other end, the other end of electric capacity C6, the other end of electric capacity C7, the plus earth of electric capacity C10；Integrated circuit
The model of U2A is OPA4340.
Voltage follower circuit of the present utility model is: 6 feet of integrated circuit U2B connect 1 foot of integrated circuit U2A,
5 feet connect 7 feet of integrated circuit U2B and connect signal output part；The model of integrated circuit U2B is OPA4340.
Owing to this utility model have employed to compensate the thermo-electromotive force produced due to the fluctuation of temperature and at cold end
Producing the cold junction compensation circuit of auxiliary voltage value, what the temperature signal collected by thermocouple carried out changing and amplify puts
Big circuit, the first-order filtering circuit being filtered the signal inputted and second-order filter circuit, to due to late-class circuit
Input resistance is the least causes useful signal loss to play the voltage follower circuit of cushioning effect, for detecting the heat of measurement
Whether galvanic couple there is the break detection circuit of broken string.This utility model simple in construction, low cost, high efficiency, can have
Weak voltage signals is converted to by effect can be by the voltage signal of data collecting card identification, can be in strontium atom light clock temperature control system
Popularization and application in system.
Accompanying drawing explanation
Fig. 1 is electrical principle block diagram of the present utility model.
Fig. 2 is electronic circuit schematic diagram of the present utility model.
Detailed description of the invention
With embodiment, this utility model is described in further details below in conjunction with the accompanying drawings, but this utility model is not limited to
These embodiments.
Embodiment 1
In FIG, this utility model strontium atom light clock temperature control system signal regulating device is by break detection circuit, cold
End compensating circuit, first-order filtering circuit, amplifying circuit, second-order filter circuit, voltage follower circuit connect and compose.
The output termination first-order filtering circuit of break detection circuit and cold junction compensation circuit, the output termination of first-order filtering circuit
Amplifying circuit, the output termination second-order filter circuit of amplifying circuit, the output termination voltage follow of second-order filter circuit
Circuit.
In fig. 2, the break detection circuit of the present embodiment is made up of resistance R2, a termination 12V electricity of resistance R2
The positive pole in source, another termination first-order filtering circuit and signal input part.The effect of resistance R2 is burn out detection, when
When the thermocouple measured occurs broken string, the output of amplifier will exceed normal range.
The first-order filtering electricity routing resistance R4 of the present embodiment, electric capacity C5 connect and compose.One terminating resistor of resistance R4
The other end of R2, one end of another termination capacitor C5 and amplifying circuit, the other end ground connection of electric capacity C5.For defeated
The signal entered, resistance R4 and electric capacity C5 form low-pass filter circuit, and time constant is the biggest, the effect abated the noise
The best, but the response speed that relative meeting makes system is slack-off, and amplifier can be caused to produce bias voltage, therefore R4
Select suitably value as required.
The amplifying circuit of the present embodiment is by integrated circuit U1, resistance R7, resistance R8, variable resistance RS1, electric capacity
C1, electric capacity C3, electric capacity C9, electric capacity C11 connect and compose, and the model of integrated circuit U1 is AD707.Integrated electricity
3 feet of road U1 connect one end of electric capacity C5,2 feet by resistance R8 ground connection and by resistance R7 and variable resistance
RS1 connects second-order filter circuit, 4 feet connect one end of electric capacity C9 and the negative pole of electric capacity C11,7 feet meet the one of electric capacity C3
End and the positive pole of electric capacity C1 ground connection, 6 feet connect second-order filter circuit, the negative pole of electric capacity C1, electric capacity C3 another
End, the other end of electric capacity C9, the plus earth of electric capacity C11.The signal collected by thermocouple is amplified.
The second-order filter circuit of the present embodiment is by integrated circuit U2A, resistance R1, resistance R3, resistance R5, resistance
R6, electric capacity C2, electric capacity C4, electric capacity C6～electric capacity C8, electric capacity C10 connect and compose, the type of integrated circuit U2A
Number it is OPA4340.3 feet of integrated circuit U2A connect voltage follow electricity by resistance R3 ground connection with by resistance R1
Road, 2 feet connect one end of electric capacity C6 and connect one end of electric capacity C8 by resistance R6 and connect integrated electricity by resistance R5
6 feet of road U1,13 feet connect one end of electric capacity C4 and the positive pole of electric capacity C2 and the positive pole of 12V power supply, 4 feet
Connect one end of electric capacity C7 and the negative pole of electric capacity C10 and the negative pole of 12V power supply, 1 foot connects voltage follower circuit, electricity
Hold C8 another termination voltage follower circuit, the negative pole of electric capacity C2, the other end of electric capacity C4, electric capacity C6 another
One end, the other end of electric capacity C7, the plus earth of electric capacity C10.Two-stage low-pass wave circuit is to the letter after amplifying
Number it is filtered.
The voltage follower circuit of the present embodiment is made up of integrated circuit U2B, and the model of integrated circuit U2B is
OPA4340.6 feet of integrated circuit U2B connect 1 foot of integrated circuit U2A, 5 feet meet the 7 of integrated circuit U2B
Foot also connects signal output part.When the input resistance of late-class circuit is the least, the loss of useful signal, voltage can be caused
Follow circuit can play the effect of buffering.
The cold junction compensation circuit of the present embodiment is connected and composed by integrated circuit U3, electric capacity C12, integrated circuit U3's
Model is LT1025.7 feet of integrated circuit U3 meet signal input part, 4 feet and 5 foot ground connection shunt-wound capacitance C12
One end, 2 feet connect the other end of negative pole shunt-wound capacitance C12 of 12V power supply.Cold end at thermocouple increases by one
With the additional voltage of temperature inversion, using LT1025 thermocouple cold end compensator, K-type thermocouple is due to temperature
The thermo-electromotive force fluctuated and produce, can produce auxiliary voltage value at cold end LT1025 and be attached to the same of post-amplifier
To input so that because the reduction that cold end is in the hot thermocouple electromotive force caused in room temperature environment is mended
Repay.
Operation principle of the present utility model is as follows:
First, the temperature signal collected by thermocouple is converted to weak voltage signals, afterwards, and this weak voltage signal
By simple filtering, carry out the amplification of adjustable magnification, become the discernible voltage signal of computer, in order to improve
Measuring accuracy, is filtered after amplification module again, exports in computer after voltage follower,
Additionally, we add burn out detection part at input, improve circuit practicality.
Claims (6)
1. a strontium atom light clock temperature control system signal regulating device, it is characterised in that: have:
The thermo-electromotive force that produces to compensate the fluctuation due to temperature and produce auxiliary voltage value cold end benefit at cold end
Repay circuit, the input of the output termination first-order filtering circuit of this circuit；
Break detection circuit, the input of the output termination first-order filtering circuit of this circuit；
Amplifying circuit, the outfan of the input termination first-order filtering circuit of this circuit；
Second-order filter circuit, the outfan of the input termination amplifying circuit of this circuit；
Voltage follower circuit, the input of the input termination second-order filter circuit of this circuit.
Strontium atom light clock temperature control system signal regulating device the most according to claim 1, it is characterised in that institute
The cold junction compensation circuit stated is: 7 feet of integrated circuit U3 connect signal input part, 4 feet and 5 foot ground connection shunt-wound capacitances
One end of C12,2 feet connect the other end of the negative pole shunt-wound capacitance C12 of 12V power supply；The model of integrated circuit U3 is
LT1025。
Strontium atom light clock temperature control system signal regulating device the most according to claim 1, it is characterised in that institute
The amplifying circuit stated is: 3 feet of integrated circuit U1 connect one end of electric capacity C5,2 feet by resistance R8 ground connection and
Connect second-order filter circuit by resistance R7 and variable resistance RS1,4 feet connect one end of electric capacity C9 and electric capacity C11
Negative pole, 7 feet connect one end of electric capacity C3 and the positive pole of electric capacity C1 ground connection, 6 feet connect second-order filter circuit, electric capacity
The negative pole of C1, the other end of electric capacity C3, the other end of electric capacity C9, the plus earth of electric capacity C11；Integrated circuit
The model of U1 is AD707.
Strontium atom light clock temperature control system signal regulating device the most according to claim 1, it is characterised in that institute
The first-order filtering circuit stated is: the other end of a terminating resistor R2 of resistance R4, the one of another termination capacitor C5
End and amplifying circuit, the other end ground connection of electric capacity C5.
Strontium atom light clock temperature control system signal regulating device the most according to claim 1, it is characterised in that institute
The second-order filter circuit stated is: 3 feet of integrated circuit U2A by resistance R3 ground connection and connect voltage by resistance R1
Follow circuit, 2 feet are connect one end of electric capacity C6 and connect one end of electric capacity C8 by resistance R6 and connect by resistance R5
6 feet of integrated circuit U1,13 feet connect one end of electric capacity C4 and the positive pole of electric capacity C2 and the positive pole of 12V power supply,
4 feet connect one end of electric capacity C7 and the negative pole of electric capacity C10 and the negative pole of 12V power supply, 1 foot connects voltage follower circuit,
Another termination voltage follower circuit of electric capacity C8, the negative pole of electric capacity C2, the other end of electric capacity C4, electric capacity C6
The other end, the other end of electric capacity C7, the plus earth of electric capacity C10；The model of integrated circuit U2A is OPA4340.
Strontium atom light clock temperature control system signal regulating device the most according to claim 1, it is characterised in that institute
The voltage follower circuit stated is: 6 feet of integrated circuit U2B connect 1 foot of integrated circuit U2A, 5 feet connect integrated electricity
7 feet of road U2B also connect signal output part；The model of integrated circuit U2B is OPA4340.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620501042.8U CN205787961U (en) | 2016-05-27 | 2016-05-27 | Strontium atom light clock temperature control system signal regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620501042.8U CN205787961U (en) | 2016-05-27 | 2016-05-27 | Strontium atom light clock temperature control system signal regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205787961U true CN205787961U (en) | 2016-12-07 |
Family
ID=57408854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620501042.8U Expired - Fee Related CN205787961U (en) | 2016-05-27 | 2016-05-27 | Strontium atom light clock temperature control system signal regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205787961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276857A (en) * | 2018-12-21 | 2019-09-24 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of processing method and circuit of aero-engine pressure sensor signal |
| CN111122170A (en) * | 2019-11-28 | 2020-05-08 | 中国航空工业集团公司西安航空计算技术研究所 | High-precision resistance signal conditioning circuit and method based on current source |
-
2016
- 2016-05-27 CN CN201620501042.8U patent/CN205787961U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276857A (en) * | 2018-12-21 | 2019-09-24 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of processing method and circuit of aero-engine pressure sensor signal |
| CN111122170A (en) * | 2019-11-28 | 2020-05-08 | 中国航空工业集团公司西安航空计算技术研究所 | High-precision resistance signal conditioning circuit and method based on current source |
| CN111122170B (en) * | 2019-11-28 | 2022-01-25 | 中国航空工业集团公司西安航空计算技术研究所 | High-precision resistance signal conditioning circuit and method based on current source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104090224B (en) | The on-line detecting system of a kind of power diode module working junction temperature and detection method | |
| CN205787961U (en) | Strontium atom light clock temperature control system signal regulating device | |
| CN103913610B (en) | Current sampling circuit with temperature drifting compensation function | |
| CN104252194A (en) | APD (avalanche photo diode) bias voltage automatic adjusting device and APD bias voltage automatic adjusting method | |
| CN104935270B (en) | Adaptive bias circuit | |
| CN202512457U (en) | Micro optical fiber spectroscope constant temperature control device | |
| CN102098016A (en) | Avalanche photodiode gain stabilization control device and method | |
| CN104990632A (en) | Gate control difference single-photon detection system | |
| CN204832991U (en) | TEC control by temperature change actuating system based on PID compensation | |
| CN204374227U (en) | For the signal acquisition circuit of motor speed test | |
| CN209590068U (en) | Constant current source power supply system | |
| CN207946465U (en) | A kind of electronic signal detection device | |
| CN203798845U (en) | Current sampling circuit with temperature drift compensation | |
| CN204613777U (en) | A kind of thermostatically controlled temperature control system | |
| CN113568449B (en) | Semiconductor vacuum deep refrigeration full-bridge control circuit of large target surface detector | |
| CN105223982B (en) | Ultrared single-photon detector precision temperature control circuit | |
| CN208272936U (en) | A kind of front end circuit of pyroelectric infrared sensor | |
| CN208313847U (en) | A kind of detector circuit for piston cleanliness detection | |
| CN102624449B (en) | A kind of signal sensor and detection circuit thereof | |
| CN102445432A (en) | Nondispersive infrared heat-release electric gas sensor of voltage differential output | |
| CN204965220U (en) | Accurate temperature control device of infrared single -photon detector | |
| CN103853206B (en) | A kind of power-supply system and radiating circuit thereof | |
| CN206235911U (en) | APD temperature based on upper and lower computer, bias control system | |
| CN205691972U (en) | A kind of electronic signature capture control circuit | |
| CN203672519U (en) | Wireless temperature hot-fluid acquisition node for building energy consumption monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20180527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |