CN203881920U - Atomic frequency standard system residual magnetic field measurement system - Google Patents

Atomic frequency standard system residual magnetic field measurement system Download PDF

Info

Publication number
CN203881920U
CN203881920U CN201420191073.9U CN201420191073U CN203881920U CN 203881920 U CN203881920 U CN 203881920U CN 201420191073 U CN201420191073 U CN 201420191073U CN 203881920 U CN203881920 U CN 203881920U
Authority
CN
China
Prior art keywords
frequency standard
atomic frequency
measurement
magnetic
atomic
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
Application number
CN201420191073.9U
Other languages
Chinese (zh)
Inventor
雷海东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jianghan University
Original Assignee
Jianghan University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jianghan University filed Critical Jianghan University
Priority to CN201420191073.9U priority Critical patent/CN203881920U/en
Application granted granted Critical
Publication of CN203881920U publication Critical patent/CN203881920U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model belongs to the technical field of atomic frequency standard magnetic field measurement, and discloses an atomic frequency standard system residual magnetic field measurement system. The atomic frequency standard system residual magnetic field measurement system comprises an industrial personal computer, a magnetic field testing instrument, an isolation amplifier, a voltage-controlled crystal oscillator and a frequency stability testing instrument, wherein the magnetic field testing instrument is connected with the industrial personal computer, measures the residual magnetic field of an atomic frequency standard system and sends measurement results to the industrial personal computer; the voltage-controlled crystal oscillator transmits output signals of the atomic frequency standard system to the frequency stability testing instrument through the isolation amplifier; and the frequency stability testing instrument is connected with the industrial personal computer. The atomic frequency standard system residual magnetic field measurement system measures atomic frequency standard output through the frequency stability testing instrument, the size of the residual magnetic field in the atomic frequency standard system is learned, and more importantly, influences imposed on indexes of the overall machine by variations in the residual magnetic field are learned.

Description

A kind of atomic frequency standard system spare magnetic field measurement system
Technical field
The utility model relates to atomic frequency standard magnetic field measurement technology field, particularly a kind of atomic frequency standard system spare magnetic field measurement system.
Background technology
Cavity bubble system is the core component of inactive type rubidium atom frequency scale complete machine, the integrated filtering resonance bubble that mainly comprises resonator cavity and design in order to reduce the volume of physical system, and assisted atomic frequency standard work required, C field and temperature control parts etc.
Resonator cavity is a kind of microwave resonance device, its Main Function is that the microwave transition for 87Rb atomic ground state fine structure provides suitable microwave field, its resonant frequency is consistent with the atomic transition frequency as the reference of quantum frequency discrimination, and it also plays a part to provide thermal environment for integrated filtering resonance bubble simultaneously.Integrated filtering resonance bubble is the core of whole quantized system, the frequency discrimination reference frequency that the hyperfine 0-0 jump frequency of ground state of the rubidium atom in integrated bubble is Rb atom frequency marking.Rubidium atomic motion direction in integrated filtering resonance bubble is rambling, adds the magnetic field (being C field) of a fixed current size and direction, can be good at playing the effect of " former quantum splitting " and " quantization axle ".Temperature control parts in cavity bubble system are comprised of thermistor and heater strip and are installed on respectively on chamber lid and cavity, and temperature control parts coordinate the temperature-adjusting circuit of cavity bubble system outside to control the temperature of resonator cavity.
Cavity bubble system itself exists various forms of interference, and they,, by closed circuit electromagnetism exchanging form, produce a certain amount of remnant field.The existence in these magnetic fields is quite complicated, is that " former quantum splitting " and " quantization axle " uses the complementary field outside C field.The design of well heater link in the temperature control module of cavity bubble system is unreasonable in addition, also can introduce surplus, and the reason of its generation is when variation of ambient temperature, and heating current will change, and the electric current of variation generates additional magnetic field around at atom.Under surplus field action, due to Zeeman effect, atomic energy level is moved, and finally causes the output frequency of atomic frequency standard to change.And at present in passive-type Technology of Atomic Frequency Standards field, remnant field size to machine system cannot compare accurate measurement, and due to the existence of remnant field, the complete machine index that the change of the remnant field size and Orientation that the variation of external environment causes causes changes also cannot be measured.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of remnant field of measuring atomic frequency standard system, for evaluate temperature provides foundation to the impact of the degree of stability of remnant field and atomic frequency standard system.
For solving the problems of the technologies described above, the utility model provides a kind of atomic frequency standard system spare magnetic field measurement system, comprising: industrial computer, magnetic field tester, isolated amplifier, VCXO and frequency stabilization tester; Described magnetic field tester is connected with described industrial computer, measures the remnant field of described atomic frequency standard system and sends to industrial computer; Described VCXO is transferred to described frequency stabilization tester by the output signal of described atomic frequency standard system via isolated amplifier; Described frequency stabilization tester is connected with described industrial computer.
Further, described atomic frequency standard system spare magnetic field measurement system also comprises: display screen; Described display screen is connected with described industrial computer.
Further, described display screen is touch screen.
Further, the accuracy class of described isolated amplifier is 0.2 grade.
Further, the nonlinearity within the scope of gamut is less than 0.1%.
Further, the intrasystem C field resistor of described atomic frequency standard is controlled the positive negative direction in C field, and before and after recording the positive negative direction variation in described atomic frequency standard system C field by magnetic field tester, remnant field is big or small.
Further, before and after the intrasystem C field resistor of atomic frequency standard control action, described frequency stabilization tester records respectively frequency difference twice.
Further, remnant field value under frequency difference and coming year Gates described in twice of described industrial computer storage, by described demonstrations demonstration frequently.
Further, described atomic frequency standard system spare magnetic field measurement system also comprises: temperature controller; Described temperature controller is connected with described atomic frequency standard system.
Further, described temperature controller regulates controls described atomic frequency standard internal system temperature, by described industrial computer record, by described display screen, shows.
The atomic frequency standard system spare magnetic field measurement system that the utility model provides is tested the remnant field of atomic frequency standard system by magnetic field tester, measure the output signal frequency difference of atomic frequency standard system by frequency stabilization tester, by industrial computer, records storage of measurement data; This system can be known the size of the inner remnant field of atomic frequency standard accurately, and assesses by the change of environment temperature the impact that cause the frequency stability of atomic frequency standard system surplus field, for the research in field, atomic frequency standard magnetic field in the future provides corresponding foundation.Can also recognize preferably the size of the intrasystem remnant field of atomic frequency standard, and the more important thing is the Index Influence of variation to complete machine of understanding remnant field, after having known that the size of remnant field and the variation of remnant field are on the amount of impact of complete machine index, can provide easily the foundation of further improvement atomic frequency standard complete machine frequency stability.
Accompanying drawing explanation
The structural representation of the atomic frequency standard system spare magnetic field measurement system that Fig. 1 provides for the utility model embodiment.
Embodiment
Referring to Fig. 1, a kind of atomic frequency standard system spare magnetic field measurement system that the utility model embodiment provides, comprising: industrial computer, magnetic field tester, isolated amplifier, VCXO and frequency stabilization tester; Magnetic field tester is connected with industrial computer, and the remnant field of the atomic frequency standard system of measurement also sends to industrial computer; VCXO is transferred to frequency stabilization tester by the output signal of atomic frequency standard system via isolated amplifier, measures the frequency difference of the output signal of atomic frequency standard system; Frequency stabilization tester is connected with industrial computer, and frequency difference is sent to industrial computer storage.
Atomic frequency standard system spare magnetic field measurement system also comprises: display screen; Display screen is connected with industrial computer, for showing remnant field, and frequency difference value, be convenient to observe.
In order to facilitate data to transfer, be convenient to man-machine interaction, preferred, display screen is touch screen.
In order to optimize the measuring accuracy of measuring system, preferred, the accuracy class of isolated amplifier is 0.2 grade.For improving measurement accuracy, the nonlinearity within the scope of gamut is less than 0.1%.
The intrasystem C field resistor of atomic frequency standard is controlled the positive negative direction in C field, and before and after recording the positive negative direction variation in described atomic frequency standard system C field by magnetic field tester, remnant field is big or small.
Before and after the intrasystem C field resistor of atomic frequency standard control action, frequency stabilization tester records respectively frequency difference twice.
Described in twice of industrial computer storage, remnant field value under frequency difference and coming year Gates, shows by showing frequently.
Atomic frequency standard system spare magnetic field measurement system also comprises: temperature controller; Temperature controller is connected with atomic frequency standard system, and then regulates the temperature of atomic frequency standard internal system.When temperature variation, remnant field and the frequency difference of real time record atomic frequency standard system, store by industrial computer, by display screen, shows.Using this as the size that can know accurately the inner remnant field of atomic frequency standard by the method, and assess by the change of environment temperature the impact that cause the frequency stability of atomic frequency standard system surplus field, for the research in field, atomic frequency standard magnetic field in the future provides corresponding foundation.By native system, can recognize preferably the size of the intrasystem remnant field of atomic frequency standard, and the more important thing is the Index Influence of variation to complete machine of understanding remnant field, after having known that the size of remnant field and the variation of remnant field are on the amount of impact of complete machine index, can provide easily the foundation of further improvement atomic frequency standard complete machine frequency stability.
The atomic frequency standard system spare magnetic field measurement system that the utility model provides is tested the remnant field of atomic frequency standard system by magnetic field tester, measure the output signal frequency difference of atomic frequency standard system by frequency stabilization tester, by industrial computer, records storage of measurement data; This system can be known the size of the inner remnant field of atomic frequency standard accurately, and assesses by the change of environment temperature the impact that cause the frequency stability of atomic frequency standard system surplus field, for the research in field, atomic frequency standard magnetic field in the future provides corresponding foundation.Can also recognize preferably the size of the intrasystem remnant field of atomic frequency standard, and the more important thing is the Index Influence of variation to complete machine of understanding remnant field, after having known that the size of remnant field and the variation of remnant field are on the amount of impact of complete machine index, can provide easily the foundation of further improvement atomic frequency standard complete machine frequency stability.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (10)

1. an atomic frequency standard system spare magnetic field measurement system, is characterized in that, comprising: industrial computer, magnetic field tester, isolated amplifier, VCXO and frequency stabilization tester; Described magnetic field tester is connected with described industrial computer, measures the remnant field of described atomic frequency standard system and sends to industrial computer; Described VCXO is transferred to described frequency stabilization tester by the output signal of described atomic frequency standard system via isolated amplifier; Described frequency stabilization tester is connected with described industrial computer.
2. atomic frequency standard system spare magnetic field measurement system as claimed in claim 1, is characterized in that, also comprises: display screen; Described display screen is connected with described industrial computer.
3. atomic frequency standard system spare magnetic field measurement system as claimed in claim 2, is characterized in that: described display screen is touch screen.
4. atomic frequency standard system spare magnetic field measurement system as claimed in claim 1, is characterized in that: the accuracy class of described isolated amplifier is 0.2 grade.
5. atomic frequency standard system spare magnetic field measurement system as claimed in claim 4, is characterized in that: the nonlinearity within the scope of gamut is less than 0.1%.
6. atomic frequency standard system spare magnetic field measurement system as claimed in claim 1, it is characterized in that: the intrasystem C field resistor of described atomic frequency standard is controlled the positive negative direction in C field, and before and after recording the positive negative direction variation in described atomic frequency standard system C field by magnetic field tester, remnant field is big or small.
7. atomic frequency standard system spare magnetic field measurement system as claimed in claim 6, is characterized in that: before and after the intrasystem C field resistor of atomic frequency standard control action, described frequency stabilization tester records respectively frequency difference twice.
8. atomic frequency standard system spare magnetic field measurement system as claimed in claim 7, is characterized in that: remnant field value under frequency difference and coming year Gates described in twice of described industrial computer storage, and by described demonstrations demonstration frequently.
9. atomic frequency standard system spare magnetic field measurement system as claimed in claim 8, is characterized in that: described atomic frequency standard system spare magnetic field measurement system also comprises: temperature controller; Described temperature controller is connected with described atomic frequency standard system.
10. atomic frequency standard system spare magnetic field measurement system as claimed in claim 9, is characterized in that: described temperature controller regulates controls described atomic frequency standard internal system temperature, by described industrial computer record, by described display screen, shows.
CN201420191073.9U 2014-04-18 2014-04-18 Atomic frequency standard system residual magnetic field measurement system Expired - Fee Related CN203881920U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420191073.9U CN203881920U (en) 2014-04-18 2014-04-18 Atomic frequency standard system residual magnetic field measurement system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420191073.9U CN203881920U (en) 2014-04-18 2014-04-18 Atomic frequency standard system residual magnetic field measurement system

Publications (1)

Publication Number Publication Date
CN203881920U true CN203881920U (en) 2014-10-15

Family

ID=51682404

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420191073.9U Expired - Fee Related CN203881920U (en) 2014-04-18 2014-04-18 Atomic frequency standard system residual magnetic field measurement system

Country Status (1)

Country Link
CN (1) CN203881920U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105182254A (en) * 2015-07-31 2015-12-23 江汉大学 Static low-intensity magnetic field detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105182254A (en) * 2015-07-31 2015-12-23 江汉大学 Static low-intensity magnetic field detection device
CN105182254B (en) * 2015-07-31 2018-01-05 江汉大学 Static weak magnetic field testing device

Similar Documents

Publication Publication Date Title
CN101839965B (en) Measuring method for quantity of driven rubidium atom frequency standard residual magnetic field
CN103018680B (en) Metering method and metering device of battery level and battery supply set
CN203881920U (en) Atomic frequency standard system residual magnetic field measurement system
CN101634595A (en) High-precision platinum resistor temperature measuring system and temperature measuring method based on same
CN103107774B (en) A kind of method improving constant-temperature crystal oscillator frequency stability
CN202815193U (en) Battery test device
CN102944268B (en) A kind of intelligent gas meter with temperature compensation
CN202339203U (en) Adaptation test device for inertial element
CN204086300U (en) A kind of three-dimensional impact registering instrument
CN203178156U (en) Quick water determination instrument
CN105466452A (en) A test measurement method for an output-temperature drift error coefficient of an MEMS sensor combination
CN204203025U (en) A kind of solids content detector
CN203365450U (en) Impact recorder
CN202974302U (en) Temperature coefficient detection device of atomic frequency scale
CN203178731U (en) Portable electric energy meter calibration master control system
CN102931986B (en) A kind of method and apparatus reducing temperature coefficient and atomic frequency standard is affected
CN204216881U (en) Passive-type atomic frequency standard working environment adaptability improving device
CN202931287U (en) Atomic frequency standard output compensation device
CN203134495U (en) Magnetic field generating system for producing three-dimensional magnetic field
CN208921579U (en) A kind of testing integrated machine of high-precision QCM
CN103412344B (en) Measuring multiple parameters proton magnetometer
CN102998346A (en) Method for measuring moisture content of green sand
CN106770416A (en) It is a kind of based on LabVIEW's129Xe nucleon relaxation time measuring systems
CN202929120U (en) Self-checking precise battery internal resistance instrument
CN202230524U (en) Data recorder

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141015

Termination date: 20150418

EXPY Termination of patent right or utility model