CN205986804U - A quick switching device for cooling magneto -optic trap magnetic field in atom interference type gravity appearance - Google Patents
A quick switching device for cooling magneto -optic trap magnetic field in atom interference type gravity appearance Download PDFInfo
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- CN205986804U CN205986804U CN201620856408.3U CN201620856408U CN205986804U CN 205986804 U CN205986804 U CN 205986804U CN 201620856408 U CN201620856408 U CN 201620856408U CN 205986804 U CN205986804 U CN 205986804U
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Abstract
A quick switching device for cooling magneto -optic trap magnetic field in atom interference type gravity appearance is including the TTL signal input circuit unit that connects gradually 1, photoelectric coupling circuit unit 2, MOSFET switch circuit unit 3 and magnetic field response circuit unit 4. The utility model discloses a quick effective shutoff the to cold atom interference type gravity appearance magneto -optic trap magnetic field can set up relevant parameter according to the magneto -optic trap of different grade type and realize quick effective the shutoff, have that circuit structure is simple, the circuit stable good, the consumption is little and cost of manufacture low grade advantage.
Description
Technical field
This utility model is related to switching technique field, especially for the switch in magnetic field in Magneto-Optical Trap.
Background technology
Be applied to the switch in cold atom interference-type gravimeter Magneto-Optical Trap magnetic field, typically require turn-off delay time short, response
Speed is fast and has good stability.Existing turn-off technique time delay is longer, cost of manufacture is high, stability is poor.
Content of the invention
This utility model will overcome the disadvantages mentioned above of prior art, provides that a kind of structure is simple, time delay is short and stable
The good Magneto-Optical Trap magnetic field switching device of property.
The fast-switching arrangement in Magneto-Optical Trap magnetic field in the interference-type gravimeter for cold atom of the present utility model, including successively
TTL signal input circuit unit 1, photoelectric coupling circuit unit 2, switch mosfet circuit unit 3 and the magnetic responsiveness electricity connecting
Road unit 4.
Described TTL signal input circuit unit 1 is made up of binding post P1 and current-limiting resistance R1, wherein：Terminals P1
No. 1 pin and the negative terminal of TTL signal connect, the anode of No. 2 pins of P1 and TTL signal connects, the first end of current-limiting resistance
It is connected with No. 2 pins of terminals P1；
Described photoelectric coupling circuit unit 2 is by photoelectrical coupler U1, shunt capacitance C1, pull-up resistor R2 and output loading
Equivalent capacity C2 is constituted, wherein：No. 2 pins of photoelectrical coupler U1 are connected with second end of current-limiting resistance R1, photoelectrical coupler
No. 3 pins be connected with No. 1 pin of TTL signal terminals, No. 5 pins of photoelectrical coupler U1 with ground be connected, photoelectric coupling
No. 6 pins of device U1 are connected with the first end of pull-up resistor, and No. 8 pins of photoelectrical coupler U1 are connected with the DC voltage of+5V,
Other pins of photoelectrical coupler are hanging, and second end of pull-up resistor R2 is connected with No. 8 pins of light thermocouple device, output loading
The first end of equivalent capacity C2 is connected with the second end pin of pull-up resistor, and the second end of equivalent capacity C2 is connected with ground；
Described switch mosfet circuit unit 3 is made up of field effect transistor Q1, wherein：The grid G of field effect transistor Q1 and defeated
Go out load equivalent capacity C2 first end be connected, the source S of field effect transistor Q1 and ground be connected, the drain D of field effect transistor Q1 with
The first end of high speed diode D1 is connected；
Described magnetic responsiveness circuit unit 4 is by high speed diode D1, power consumption resistance R3, field coil terminals P3 and magnetic
Field coil supplies electric connection terminal P2 to constitute, wherein：Second end of high speed diode D1 and field coil draw for No. 1 of electric connection terminal P2
Foot is connected, and the first end of power consumption resistance R3 is connected with the first end of high speed diode, second end of power consumption resistance R3 and magnetic field line
No. 2 pins of the terminals P3 of circle are connected, and No. 1 pin of the confession electric connection terminal P2 of field coil is connected with required DC voltage,
No. 2 pins of terminals P2 are connected with ground, and No. 1 pin of the terminals P3 of field coil and field coil supply the 1 of electric connection terminal
Number pin is connected, and No. 1 pin of field coil terminals P3 and No. 2 pins are connected with the two ends of field coil respectively.
Advantage of the present utility model:Achieve quickly effectively switching to cold atom interference-type gravimeter Magneto-Optical Trap magnetic field,
Relevant parameter can be arranged according to different types of Magneto-Optical Trap to realize quickly effectively switching, there is circuit structure simple, circuit steady
The advantages of qualitative good, small power consumption and low manufacture cost.
Brief description
Fig. 1 is construction unit block diagram of the present utility model；
Fig. 2 is design principle figure of the present utility model.
Specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings.
Referring to Fig. 1 and Fig. 2, the high-speed switch in Magneto-Optical Trap magnetic field in the interference-type gravimeter for cold atom of the present utility model
Device, including the TTL signal input circuit unit 1 being sequentially connected, photoelectric coupling circuit unit 2, switch mosfet circuit unit 3
With magnetic responsiveness circuit unit 4.
Described TTL signal input circuit unit 1 is made up of binding post P1 and current-limiting resistance R1, wherein：Terminals P1
No. 1 pin and the negative terminal of TTL signal connect, the anode of No. 2 pins of P1 and TTL signal connects, the first end of current-limiting resistance
It is connected with No. 2 pins of terminals P1；
Described photoelectric coupling circuit unit 2 is by photoelectrical coupler U1, shunt capacitance C1, pull-up resistor R2 and output loading
Equivalent capacity C2 is constituted, wherein：No. 2 pins of photoelectrical coupler U1 are connected with second end of current-limiting resistance R1, photoelectrical coupler
No. 3 pins be connected with No. 1 pin of TTL signal terminals, No. 5 pins of photoelectrical coupler U1 with ground be connected, photoelectric coupling
No. 6 pins of device U1 are connected with the first end of pull-up resistor, and No. 8 pins of photoelectrical coupler U1 are connected with the DC voltage of+5V,
Other pins of photoelectrical coupler are hanging, and second end of pull-up resistor R2 is connected with No. 8 pins of light thermocouple device, output loading
The first end of equivalent capacity C2 is connected with the second end pin of pull-up resistor, and the second end of equivalent capacity C2 is connected with ground；
Described switch mosfet circuit unit 3 is made up of field effect transistor Q1, wherein：The grid G of field effect transistor Q1 and defeated
Go out load equivalent capacity C2 first end be connected, the source S of field effect transistor Q1 and ground be connected, the drain D of field effect transistor Q1 with
The first end of high speed diode D1 is connected；
Described magnetic responsiveness circuit unit 4 is by high speed diode D1, power consumption resistance R3, field coil terminals P3 and magnetic
Field coil supplies electric connection terminal P2 to constitute, wherein：Second end of high speed diode D1 and field coil draw for No. 1 of electric connection terminal P2
Foot is connected, and the first end of power consumption resistance R3 is connected with the first end of high speed diode, second end of power consumption resistance R3 and magnetic field line
No. 2 pins of the terminals P3 of circle are connected, and No. 1 pin of the confession electric connection terminal P2 of field coil is connected with required DC voltage,
No. 2 pins of terminals P2 are connected with ground, and No. 1 pin of the terminals P3 of field coil and field coil supply the 1 of electric connection terminal
Number pin is connected, and No. 1 pin of field coil terminals P3 and No. 2 pins are connected with the two ends of field coil respectively.
TTL signal input circuit unit 1 is for accessing TTL control signal, and wherein current-limiting resistance R1 is used for restricted T TL to be believed
Number electric current, realize to the input of photoelectrical coupler U1 protection；
Photoelectric coupling circuit unit 2 mainly passes through the shielding that photoelectrical coupler U1 realizes environment to external world, because magneto-optic
Can there is larger magnetic field in trap surrounding, can affect the Actual Control Effect of Strong to field circuit for the TTL signal, and shunt capacitance C1 is used
In the ripple absorbing on power line and the reduction impact to power supply for the photoisolator, pull-up resistor R2 is used for absorbing shunt capacitance C1
The power consumption that cannot consume, output loading equivalent capacity C2 is the impact for reducing trigger to load；
Switch mosfet circuit unit 3 passes through to change the magnitude of voltage in grid G, can play one and quickly be switched on and off
Effect, has the advantages of fast response time, good stability；
The major function of magnetic responsiveness circuit unit 4 is to realize the response in Magneto-Optical Trap magnetic field, when MOSFET opens, magnetic field
Coil is started working, and provides stable magnetic field for Magneto-Optical Trap, when MOSFET turns off, Magneto-Optical Trap field coil quits work, magnetic
The magnetic field of ligh trap turns off rapidly.Power consumption resistance R3, Magneto-Optical Trap field coil and Magneto-Optical Trap magnetic field line in magnetic responsiveness circuit unit 4
The feeder ear of circle constitutes single order RL circuit, in conjunction with switch mosfet circuit unit 3, finally realizes to cold atom interference-type gravity
In instrument, Magneto-Optical Trap magnetic field quickly effectively switchs.
Content described in this specification embodiment is only enumerating of the way of realization to utility model design, and this practicality is new
The protection domain of type should not be construed as limited to only the concrete form that embodiment is stated, protection domain of the present utility model also and
In those skilled in the art according to the thinkable equivalent technologies mean of this utility model design institute.
Claims (1)
1. be used for cold atom interference-type gravimeter in Magneto-Optical Trap magnetic field fast-switching arrangement it is characterised in that：Including connecting successively
The TTL signal input circuit unit (1), photoelectric coupling circuit unit (2), switch mosfet circuit unit (3) and the magnetic field that connect ring
Answer circuit unit (4)；
Described TTL signal input circuit unit (1) is made up of binding post P1 and current-limiting resistance R1, wherein：The 1 of terminals P1
The negative terminal of number pin and TTL signal connects, and the anode of No. 2 pins of P1 and TTL signal connects, the first end of current-limiting resistance and connecing
No. 2 pins of line end P1 are connected；
Described photoelectric coupling circuit unit (2) is by photoelectrical coupler U1, shunt capacitance C1, pull-up resistor R2 and output loading etc.
Effect electric capacity C2 is constituted, wherein：No. 2 pins of photoelectrical coupler U1 are connected with second end of current-limiting resistance R1, and the 3 of photoelectrical coupler
Number pin is connected with No. 1 pin of TTL signal terminals, and No. 5 pins of photoelectrical coupler U1 are connected with ground, photoelectrical coupler U1
No. 6 pins be connected with the first end of pull-up resistor, No. 8 pins of photoelectrical coupler U1 are connected with the DC voltage of+5V, photoelectricity
Other pins of bonder are hanging, and second end of pull-up resistor R2 is connected with No. 8 pins of light thermocouple device, output loading equivalent
The first end of electric capacity C2 is connected with the second end pin of pull-up resistor, and the second end of equivalent capacity C2 is connected with ground；
Described switch mosfet circuit unit (3) is made up of field effect transistor Q1, wherein：The grid G of field effect transistor Q1 and output
The first end of equivalent capacity C2 of load is connected, the source S of field effect transistor Q1 and be connected, the drain D of field effect transistor Q1 and height
The first end of fast diode D1 is connected；
Described magnetic responsiveness circuit unit (4) is by high speed diode D1, power consumption resistance R3, field coil terminals P3 and magnetic field
Coil power supply terminals P2 is constituted, wherein：Second end of high speed diode D1 and field coil supply No. 1 pin of electric connection terminal P2
It is connected, the first end of power consumption resistance R3 is connected with the first end of high speed diode, second end of power consumption resistance R3 and field coil
Terminals P3 No. 2 pins be connected, No. 1 pin of the confession electric connection terminal P2 of field coil is connected with required DC voltage, connects
No. 2 pins of line end P2 are connected with ground, and No. 1 pin of the terminals P3 of field coil and field coil supply No. 1 of electric connection terminal
Pin is connected, and No. 1 pin of field coil terminals P3 and No. 2 pins are connected with the two ends of field coil respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856408.3U CN205986804U (en) | 2016-08-05 | 2016-08-05 | A quick switching device for cooling magneto -optic trap magnetic field in atom interference type gravity appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856408.3U CN205986804U (en) | 2016-08-05 | 2016-08-05 | A quick switching device for cooling magneto -optic trap magnetic field in atom interference type gravity appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986804U true CN205986804U (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620856408.3U Withdrawn - After Issue CN205986804U (en) | 2016-08-05 | 2016-08-05 | A quick switching device for cooling magneto -optic trap magnetic field in atom interference type gravity appearance |
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| CN (1) | CN205986804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160713A (en) * | 2016-08-05 | 2016-11-23 | 浙江工业大学 | Quick switching device for magneto-optical trap magnetic field in cold atom interference type gravimeter |
-
2016
- 2016-08-05 CN CN201620856408.3U patent/CN205986804U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160713A (en) * | 2016-08-05 | 2016-11-23 | 浙江工业大学 | Quick switching device for magneto-optical trap magnetic field in cold atom interference type gravimeter |
| CN106160713B (en) * | 2016-08-05 | 2023-05-23 | 浙江工业大学 | Quick switching device for magnetic field of magneto-optical trap in cold atom interference type gravimeter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20230523 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20230523 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |