CN105938752A - Demagnetizing apparatus and demagnetizing method applicable to hydrogen atomic frequency standard - Google Patents
Demagnetizing apparatus and demagnetizing method applicable to hydrogen atomic frequency standard Download PDFInfo
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- CN105938752A CN105938752A CN201610519583.8A CN201610519583A CN105938752A CN 105938752 A CN105938752 A CN 105938752A CN 201610519583 A CN201610519583 A CN 201610519583A CN 105938752 A CN105938752 A CN 105938752A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material
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Abstract
The invention provides a demagnetizing apparatus and a demagnetizing method applicable to a hydrogen atomic frequency standard. The demagnetizing apparatus applicable to the hydrogen atomic frequency standard comprises a first transformer, a second transformer, a driving mechanism and a control mechanism, wherein the second transformer and the first transformer are in serial connection; the driving mechanism is connected with the first transformer; and the control mechanism is connected with the driving mechanism, and used for setting a control scheme to control the driving mechanism to automatically adjust the output current of the first transformer according to the control scheme. By adoption of the demagnetizing apparatus and the demagnetizing method applicable to the hydrogen atomic frequency standard, the automatic regulation of the transformers can be realized; the whole demagnetizing process can be completed automatically; and in addition, the demagnetizing apparatus has the advantages of automatic regulation of the output frequency, high stability, high precision and low current impact on the externally-connected physical system.
Description
Technical field
The present invention relates to demagnetizing apparatus field, particularly relate to a kind of Hydrogen Atom Frequency Standard demagnetizer and demagnetization side
Method.
Background technology
Growing along with domestic hydrogen atomic clock technology, to the performance requirement of system all parts the most more
Strictly.Wherein hydrogen atomic clock magnetic shielding system is an important ring, and it uses permalloy manufacture, externally
The interference of boundary's environmental magnetic field is decayed or is shielded, and reduces the external magnetic field disturbance to atomic energy level so that
The physical system of hydrogen atomic clock provides metastable transition signal.
Hydrogen atomic frequency standard as meeting a key technology and the equipment of the application of China independent navigation, its
The stability of output frequency and accuracy are the key factors for weighing these properties of product.Corresponding for meeting
The demand of high-performance and high reliability, thus to the related side such as precision, technique during manufacturing
It is higher that the performance requirement in face compares common product.Wherein, because of the operation principle of atomic frequency standard, phase is expected
To preferable and stationary atom jump frequency output signal, amplitude and the uniformity in magnetic field is proposed high wanting
Asking, for meeting corresponding requirements, we generally use the magnetic shielding material of high magnetic permeability for special structure
Design, sets up the special magnetic shielding system meeting Hydrogen Atom Frequency Standard performance requirement.Also need before actually used
It is carried out a series of related process process, to guarantee that its performance reaches optimal.A technique therein
Just include magnetic shielding system complete machine is demagnetized.
Existing for magnetic material demagnetization method be broadly divided into four kinds, i.e. alternating current demagnetization by method,
Damped method, unidirectional current demagnetization method, heating.Wherein alternating current demagnetization is applicable to middle-size and small-size work by method
The batch demagnetization of part, is placed on workpiece on the demagnetizer equipped with track and planker, during coil electricity, by work
Part passes through and away from coil slowly along track from coil.For demagnetization can not be placed on demagnetizer
Large-scale workpiece, can be enclosed within coil on workpiece, passes through and coil away from workpiece slowly during energising.Decline
Subtraction make use of the feature that alternating current constantly commutates, and is gradually lowered by decay demagnetizer or pressure regulator automatically
Electric current is that part demagnetizes.The workpiece unidirectional current demagnetization that unidirectional current magnetized, can use direct current reversing
Decay or intrasonic electric current demagnetize automatically.And heat demagnetization method and improve workpiece temperature to curie point by heating
Above, it is maximally effective demagnetizing method, but this method is harsher due to condition, uneconomical and enforcement
In be subject to many limitations.
It addition, existing a kind of demagnetizing method using damped method to be combined with heating: first will process
Material be heated to curie point and carry out demagnetizing for the first time, use damped method to carry out second after assembling completes again
Secondary demagnetization.Second time demagnetization process brief principle is on hydrogen atomic clock resonator cavity 6 under an additional power frequency
Big electric current, this electric current is produced by one group of treated transformer group, and now resonator cavity 6 is equivalent to one
Individual conductor, produces the magnetic field of an alternation around, and this action of a magnetic field, to magnetic shielding system, utilizes transformation
The regulatory function of device changes the amplitude of output electric current, is gradually lowered until being zero, and demagnetization terminates.This process
Middle regulation transformator uses Non-follow control, and discreteness is relatively big, and different personnel are when implementing this technical process
The error of introducing different, and demagnetizing curve is single.Therefore, how to provide a kind of automatic, satisfied
The equipment of hydrogen clock demagnetization technique is the problem that those skilled in the art need to solve.
At present, demagnetizer on the market, demagnetizer, model, specification are varied, the object of demagnetization,
Effect is different.
Referring to Fig. 1, a kind of existing demagnetizer includes the first transformator 1 and the second transformator 2, its
In the first transformator 1 and the second transformator 2 be connected in series, the first transformator 1 connects civil power, and second becomes
Pressing 2 devices to connect external resonant cavity 6, this device regulates the first transformator 1 by manual adjustment knob 11
Output, thus realize the regulation to output current amplitude, there is discreteness relatively big, different personnel are in reality
The error of introducing when executing this technical process is different, and the problem that demagnetizing curve is single.And existing set
Standby just have electric current to export in system initialisation phase, and passive hydrogen clock weak link will have bigger energy product
Tired, hydrogen clock weak link is by by bigger rush of current.
And existing a kind of demagnetizing method, the output of the first transformator 1 and the second transformator 2 is inputted and alters
Even, the outer corresponding junction point accessing resonator cavity 6 around blister copper wire on the second transformator 2, manually
220v civil power is converted to a corresponding maximum current 100A left side by the active coil number of turn regulating the first transformator 1
Right demagnetization current adds to resonator cavity 6, is slowly drop down to 0A with relatively uniform speed.But this method
Would ordinarily be encountered the situation that demagnetization effectiveness is undesirable, need repeatedly, even improve corresponding maximum current value,
Need to change current value and obtain decrease speed etc..It is thus desirable to corresponding technological parameter is entered according to practical situation
Row sum-equal matrix.And Hydrogen Atom Frequency Standard current value is controlled require in maximum current value and decrease speed very
Harshness, can produce significantly heating, can cause when heat reaches a certain value humorous when electric current is by load
Shake the damage in chamber 6.It addition, former demagnetizing apparatus is applied at first in active Hydrogen Atom Frequency Standard, this frequency marking
Volume is big, and Stability Analysis of Structures, demagnetization effectiveness is preferable.Along with the gradually development of field of atomic frequency standard, grind afterwards
The passive-type Hydrogen Atom Frequency Standard of small volume, its size and structure are made compared with active hydrogen clock not to the utmost
Identical.And structure is more fine, needing the details considered more, therefore passive hydrogen clock should not be straight
Connect demagnetizing apparatus and the method continuing to use active hydrogen clock.Passive hydrogen clock uses the demagnetization side of active hydrogen clock
Method can produce obvious fever phenomenon, so being commonly available to the demagnetization technique of active Hydrogen Atom Frequency Standard very
May not apply in passive-type Hydrogen Atom Frequency Standard, even ejector half Hydrogen Atom Frequency Standard can be damaged.
Summary of the invention
For above-mentioned deficiency of the prior art, the present invention provides a kind of Hydrogen Atom Frequency Standard demagnetizer and demagnetization
Method, can realize automatically adjusting transformator, be automatically performed whole demagnetization technical process, have defeated
Go out that frequency can be automatically adjusted, stability is strong, degree of accuracy is high and little to outside junctional complex reason system power impact
Advantage.
To achieve these goals, the present invention provides a kind of Hydrogen Atom Frequency Standard demagnetizer, including:
One first transformator；
One second transformator, described second transformator and described first transformer series；
One drive mechanism, described drive mechanism connects described first transformator；And
One controlling organization, described controlling organization connects described drive mechanism, for the control according to periphery input
Parameter arranges a control program and controls described drive mechanism according to described control program and be automatically adjusted described the
The output electric current of one transformator.
Preferably, described drive mechanism includes being in transmission connection successively a motor, a planetary reducer and
One actuating device, described motor connects described controlling organization, and described actuating device becomes with described first
One adjusting knob of depressor is in transmission connection.
Preferably, also include that at least one position sensor, described position sensor are arranged at described adjusting knob
Side also communicates to connect with described controlling organization.
Preferably, described controlling organization includes that a PC of communication connection controls end and a microprocessor, described
PC controls end and is used for arranging described control program, and described microprocessor receives described control program and according to institute
State the described drive mechanism of control program control and be automatically adjusted the output electric current of described first transformator.
Preferably, described controlling organization also includes a data base, and it is strong that described data base prestores a plurality of magnetic field
Degree and the relation function of time, described PC controls end and is connected with described database communication.
Preferably, the relation function of described magnetic field intensity and time includes formula (1):
H=Ae-kt(1)；
Wherein, H is magnetic field intensity, and A is magnetic field amplitude, and e is the truth of a matter, and k is natural number coefficient, when t is
Between；And/or formula (2):
H=kt (2)；
Wherein, H is magnetic field intensity, and k is natural number coefficient, and t is the time.
Preferably, also include that an electrical alternating contact switch, described electrical alternating contact switch are series at described first transformation
Between device and described second transformator；And described electrical alternating contact switch connects described microprocessor, described micro-
Processor is additionally operable to control the break-make of described electrical alternating contact switch according to described control program.
The present invention provides a kind of demagnetizing method based on Hydrogen Atom Frequency Standard demagnetizer of the present invention, including
Step:
S1: a plurality of magnetic field intensity that prestores in a data base of described controlling organization and the relation function of time；
S2: regulate the output voltage of described first transformator to an initial value by described controlling organization；
S3: by described controlling organization input needed for control parameter and call described magnetic field intensity and time
Between relation function form described control program；
S4: turn on the circuit between described first transformator and described second transformator；
S5: described controlling organization controls described drive mechanism according to described control program and is automatically adjusted described first
Transformator output electric current and by described second transformator generation magnetic field one workpiece is demagnetized；
S6: after described workpiece has demagnetized, cuts off between described first transformator and described second transformator
Path.
Preferably, the relation function of described magnetic field intensity and time includes formula (1):
H=Ae-kt(1)；
Wherein, H is magnetic field intensity, and A is magnetic field amplitude, and e is the truth of a matter, and k is natural number coefficient, when t is
Between；And/or formula (2):
H=kt (2)；
Wherein, H is magnetic field intensity, and k is natural number coefficient, and t is the time.
Preferably, described control parameter includes: umber of pulse and time.
Due to the fact that and have employed above technical scheme so that it is have the advantages that
By coordinating of controlling organization and drive mechanism, it is achieved that automatically controlling of demagnetization technique, eliminate people
The introducing error of work operation；In the case of identical parameters is set, it is achieved demagnetization effectiveness is identical every time, makes
Obtain experimenter and can test different functional relationship on the Hydrogen Atom Frequency Standard demagnetizer of the present invention to demagnetization work
The impact of skill effect, provides experiment porch for optimizing demagnetization technique；And significantly simplify demagnetization technique
Operating process.Planetary reducer is for increasing rotation precision and the moment of torsion of motor.Data base adopts
With facilitating PC to control the end data call when forming control program, it is strong that data base prestores a plurality of magnetic field
Degree and the relation function of time so that the Hydrogen Atom Frequency Standard demagnetizer of the present invention can formulate polytype
Control program, meet the needs of multiple different process, and can be by the editor of function, it is achieved technique control
The expansion of scheme processed.Electrical alternating contact switch is used for controlling cut-offfing between the first transformator and the second transformator,
When equipment is carrying out initializing preparation when, the first transformator can be controlled and the second transformator will not
Output electric current.Do so serves the effect of protection passive hydrogen clock weak link, and first reduces weakness
The accumulation of link portion of energy, second eliminates weak link accepts the stage of rush of current.Position sensing
Device is for the current location of sensing the first transformator knob.And reduce the risk that operator get an electric shock, improve
Safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing Hydrogen Atom Frequency Standard demagnetizer；
Fig. 2 is the structural representation of the Hydrogen Atom Frequency Standard demagnetizer of the embodiment of the present invention；
Fig. 3 is second transformator attachment structure schematic diagram with resonator cavity of the embodiment of the present invention；
Fig. 4 is the flow chart of the demagnetizing method of the embodiment of the present invention；
Fig. 5 is the structural representation of the resonator cavity of the embodiment of the present invention.
Detailed description of the invention
Below according to accompanying drawing 2-5, provide presently preferred embodiments of the present invention, and be described in detail, enable more
Understand well the function of the present invention, feature.
Refer to Fig. 2, a kind of Hydrogen Atom Frequency Standard demagnetizer of the present invention, including: one first transformator 1,
One second transformator 2, drive mechanism 3 and a controlling organization 4, wherein the first transformator 1 is by a friendship
Stream contact switch 5 is connected with the second transformator 2, and controlling organization 4 connects the first change by drive mechanism 3
One adjusting knob 11 of depressor 1, controlling organization 4 is used for arranging a control program and according to control program control
Drive mechanism 3 processed is automatically adjusted the output electric current of the first transformator 1.First transformator 1 connects driving machine
Structure 3 and civil power, controlling organization 4 connects drive mechanism 3 and electrical alternating contact switch 5, and the second transformator 2 is even
Connect an outside resonator cavity 6.
By coordinating of controlling organization 4 and drive mechanism 3, it is achieved that automatically controlling of demagnetization technique, eliminate
Manually-operated introducing error；In the case of identical parameters is set, it is achieved demagnetization effectiveness is identical every time,
Make experimenter can test different functional relationship on the Hydrogen Atom Frequency Standard demagnetizer of the present invention to demagnetization
The impact of technological effect, provides experiment porch for optimizing demagnetization technique；And significantly simplify demagnetization work
The operating process of skill.Electrical alternating contact switch 5 is for controlling between the first transformator 1 and the second transformator 2
Cut-off, when equipment carry out initialize preparation when, the first transformator 1 and second can be controlled
Transformator 2 will not export electric current.Do so serves the effect of protection passive hydrogen clock weak link, the
One accumulation reducing weak link portion of energy, second eliminates weak link accepts the rank of rush of current
Section.
Referring to Fig. 3, interior winding Shangrao of the second transformator 2 is provided with blister copper wire 21, blister copper wire 21
Lead-out wire connect resonator cavity 6.
Referring to Fig. 2 again, drive mechanism 3 includes that motor 31, planet being in transmission connection successively subtracts
Speed machine 32 and an actuating device 33, motor 31 connection control mechanism 4, actuating device 33 and first
The adjusting knob 11 of transformator 1 is in transmission connection.In the present embodiment, the first transformator 1 is provided with a support
8, planetary reducer 32 is fixed on support 8 regulation being connected the first transformator 1 by actuating device 33
Knob 11, adjusting knob 11 is other is provided with two positions sensor 7, and two positions sensor 7 lays respectively at the
The starting voltage zero position of one transformator 1 adjusting knob 11 and maximum voltage position.In the present embodiment, step
Enter motor 31 end to end with planetary reducer 32, and handstand is fixed on the top of support 8, stepping electricity
Machine 31 uses with the combination of planetary reducer 32 mode stood upside down to be connected actuating device 33 and simplifies equipment knot
Structure, and make structure more stable.Adjusting knob 11 and the planetary reducer 32 of the first transformator 1
Rotary shaft connect.The speed reducing ratio of planetary reducer 32 is 1:16, and planetary reducer 32 is used for increasing step
Enter rotation precision and the moment of torsion of motor 31.
Controlling organization 4 includes that microprocessor 41, PC communicated to connect successively controls end 42 and a number
According to storehouse 43, PC controls end 42 and is used for arranging control program, and data base 43 controls end 42 for PC and setting
Thering is provided calling of pre-stored data when putting control program, microprocessor 41 receives control program and according to controlling party
Case controls drive mechanism 3 and is automatically adjusted the output electric current of the first transformator 1, and position sensor 7 is fixed on
Communicate to connect on support 8 and with microprocessor 41.
Data base 43 prestores the relation function of a plurality of magnetic field intensity and time, in the present embodiment, magnetic field
Intensity includes formula (1) and formula (2) with the relation function of time；Formula (1):
H=Ae-kt(1)；
Wherein, H is magnetic field intensity, and A is magnetic field amplitude, and e is the truth of a matter, and k is natural number coefficient, when t is
Between；In the present embodiment, A takes 1, and k takes 0.1, and demagnetization process duration t has 30s and 60s optional,
Each parameter can be adjusted according to the actual requirements.
Formula (2):
H=kt (2)；
Wherein, H is magnetic field intensity, and k is natural number coefficient, and t is the time, and formula (2) is direct proportion letter
Number, magnetic field intensity is successively decreased according to time relationship constant amplitude, i.e. be can be used alone, it is also possible to as remaining letter
The piecewise function of number uses.
Owing to motor 31 angular velocity omega has positive correlation with electric current I in atmosphere with magnetic field intensity H,
Therefore rotated according to the curve linear relationship of this magnetic field intensity with the relation function of time by motor 31, can
The magnetic field that output changes according to this curve linear relationship.
Data base 43 prestores the relation function of a plurality of magnetic field intensity and time so that the hydrogen of the present invention is former
Sub-frequency marking demagnetizer can formulate polytype control program, meets the needs of multiple different process,
And can be by the editor of function, it is achieved the expansion of process control schemes.User can be simply by required for it
The magnetic field intensity of experiment is added in data base 43 with the relation function curve desired parameters of time, and at PC
Control end 42 realizes calling.
A kind of Hydrogen Atom Frequency Standard demagnetizer of the present invention, controlling organization 4 uses serial communication, wiring to complete
After, user is when using the present invention, it is necessary first to configures serial ports on PC controller, i.e. selects serial ports number,
Can be 115200 by its Configuration of baud rate, after configuring check bit, data bit and stopping position, parameter configuration
Completing, open serial ports, PC controls end 42 and is connected with microprocessor 41 foundation, waits pending data to transmit.
If changing other experiment functional relationships, PC control end 42 can pass through serial ports will be from data base 43
The data of interior reading are sent to microprocessor 41, without the program revising microprocessor 41 again.Initially
Changing parameter and starting device, controlling end 42 at PC can complete.
A kind of Hydrogen Atom Frequency Standard demagnetizer of the present invention, may finally export one by the electricity greatly of power frequency change
Stream, and this electric current is received on resonator cavity 6, now resonator cavity 6 can see a conductor as, and electric current leads to
Crossing conductor and produce magnetic field, this magnetic field changes along with the change of alternating current, acts on the magnetic of resonator cavity 6
In shielding harness, carry out technical process of demagnetizing.
A kind of Hydrogen Atom Frequency Standard demagnetizer of the present invention, can meet different realities according to practical situation simultaneously
Test demand, multiple different technical process can be implemented reliable control, have simple to operate, can realize many
Kind of function editor also can control electric current and completes various Hydrogen Atom Frequency Standard magnetic cup by default respective function curve
Cover the demagnetization of system, and error is controlled.Compared with existing equipment, a kind of Hydrogen Atom Frequency Standard of the present invention is moved back
Magnetic device uses and automatically controls, and in original technical process, the part manually completed, existing all employing is controlled automatically
System, operator only need to set relevant parameter controlling end.Eliminate the introducing error of manual operation；
Under the setting of identical parameters, the effect of demagnetization is identical every time, the most quite provides an experiment porch, real
The personnel of testing can test different functional relationship to demagnetization work on a kind of Hydrogen Atom Frequency Standard demagnetizer of the present invention
The impact of skill effect；And existing equipment can be eliminated need to demagnetize the flow process first magnetized, directly from just starting
Demagnetize.
One Hydrogen Atom Frequency Standard demagnetizer of the present invention has safe design, for preventing the first transformator 1 and
The electric current that two transformators 2 produce unexpectedly is passed to drive mechanism 3, and then has influence on controlling organization 4,
Frame 8 connects the part of the first transformator 1 and drive mechanism 3 and all uses insulation to connect.For preventing driving machine
Structure 3, by excessive for the angular turn of adjusting knob 11, cause the first transformator 1 to produce super-high-current and damages
Hydrogen clock physical system, placed position sensor 7 in the maximum voltage angle position of adjusting knob 11 and uses
Control the scope that the first transformator 1 adjusting knob 11 rotates, and in the first transformator 1 and the second transformation
Electrical alternating contact switch 5 it is provided with for controlling cut-offfing of electric current, i.e. when electrical alternating contact switch 5 between device 2
During disconnection, even if the first transformator 1 occurred to turn, also without compromising on to hydrogen clock physical system.
Refer to Fig. 2, Fig. 4, a kind of based on the Hydrogen Atom Frequency Standard demagnetizer of the present invention demagnetization of the present invention
Method, including step:
S1: a plurality of magnetic field intensity that prestores in a data base 43 of controlling organization 4 and the relation letter of time
Number；
S2: regulate the output voltage of the first transformator 1 to an initial value by controlling organization 4；
S3: by the control parameter needed for input on controlling organization 4 and the pass calling magnetic field intensity and time
It is that function forms control program；In the present embodiment, control parameter and include: umber of pulse and time.
S4: turn on the circuit between the first transformator 1 and the second transformator 2；
S5: controlling organization 4 controls drive mechanism 3 according to control program and is automatically adjusted the defeated of the first transformator 1
Go out electric current and a workpiece is demagnetized by the magnetic field by the second transformator 2 generation；
S6: after workpiece has demagnetized, cuts off the path between the first transformator 1 and the second transformator 2.
Such as: first switch on power, then click on the start button on the microprocessor 41 of controlling organization 4,
The motor 31 of drive mechanism 3 drives the adjusting knob 11 of the first transformator 1 to turn to by transmission
Initial position, in the present embodiment, initial position is the maximum output voltage position of the first transformator 1, this
In embodiment, maximum output voltage is set to 125v.Arrival specific bit postpones and is detected by position sensor 7,
Motor 31 rotates and stops, and waits that PC controls end 42 and sends order.Then, end 42 is controlled at PC
Carry out corresponding Initialize installation, select magnetic field intensity and the relation function of time, demagnetization process duration
Deng, after setting, corresponding data is recalled from data base 43, control end 42 via PC, by string
Mouth is sent to microprocessor 41.Start demagnetization operation, between the first transformator 1 and the second transformator 2
Electrical alternating contact switch 5 adhesive turns on, and electric current flows to the second transformator 2, the second transformation from the first transformator 1
Produce the magnetic field of alternation in device 2 winding, produce in the blister copper wire 21 being wound on the second transformator 2 winding
The electric current of raw alternation, is applied in hydrogen clock physical system, and motor 31 starts to rotate simultaneously, output
Current amplitude is gradually reduced according to demagnetization needs, completes demagnetization technique.Afterwards, drive when motor 31
After the adjusting knob 11 of the first transformator 1 arrives initial position, position sensor 7 detect, stepping
Motor 31 shuts down at once, and electrical alternating contact switch 5 disconnects, and demagnetization process terminates.
Referring to Fig. 5, during magnetic shield is demagnetized, the minima of actual added electric current should expire with maximum
Foot several requirements, from control system export electric current after resonator cavity 6, flow back to control system, now
Resonator cavity 6 regards a conductor as, and the current induced magnetic field on conductor acts on the internal layer magnetic cup of resonator cavity 6
Cover, be then passed through the attenuation middle level magnetic shield in resonator cavity 6 of internal layer magnetic shield, then through middle level
Magnetic shield attenuation is to the outermost layer magnetic shield of resonator cavity 6.So so that three layers of magnetic shield simultaneously
Reach demagnetization effectiveness, after added lower current limit should enough make magnetic field have passed through two-layer decay, it is possible to make
Outermost layer magnetic shield reaches demagnetization effectiveness.That is outermost layer magnetic shield can be made to reach saturation induction strong
Degree, this electric current i.e. minima of electric current.In Hydrogen Atom Frequency Standard system, have below resonator cavity 6 one thin
Weak link, this link uses and is welded to connect, and at high temperature reaching its fusing point can be damaged, its corresponding electricity
The maximum of stream.
Referring to Fig. 2, Fig. 4, in the present embodiment, the motor 31 of drive mechanism 3 is according to control program
The implementation method rotated is: first determine the time T required for total demagnetization techniqueAlwaysWith magnetic field intensity and time
The area S that surrounds with x-axis, y-axis of the curve of relation functionAlways, this time and area are divided into some etc.
Divide T1、T2、T3……；S1、S2、S3…….Determine that motor 31 is required after forwarding certain angle to again
Umber of pulse PAlways, by formulaPer a period of time T can be calculatednCorresponding umber of pulse Pn,I.e.
In per a period of time, the interval Interval between adjacent two pulsesn.Finally by corresponding to every period
IntervalnWith Pn, and some parameters of correspondence (include that type function is numbered, TAlwaysDeng) it is deposited into number
According in storehouse 43, in order to call.
More than record, only presently preferred embodiments of the present invention, be not limited to the scope of the present invention,
The above embodiment of the present invention can also make a variety of changes.The most every right according to the present patent application is wanted
Ask change simple, equivalent and modification that book and description made, fall within the right of patent of the present invention
Claimed scope.
Claims (10)
1. a Hydrogen Atom Frequency Standard demagnetizer, it is characterised in that including:
One first transformator；
One second transformator, described second transformator and described first transformer series；
One drive mechanism, described drive mechanism connects described first transformator；And
One controlling organization, described controlling organization connects described drive mechanism, for the control according to periphery input
Parameter processed arranges a control program and is automatically adjusted described according to the described drive mechanism of described control program control
The output electric current of the first transformator.
Hydrogen Atom Frequency Standard demagnetizer the most according to claim 1, it is characterised in that described driving
Mechanism includes a motor, a planetary reducer and the actuating device being in transmission connection successively, described step
Entering motor and connect described controlling organization, described actuating device passes with an adjusting knob of described first transformator
It is dynamically connected.
Hydrogen Atom Frequency Standard demagnetizer the most according to claim 2, it is characterised in that also include to
A few position sensor, described position sensor be arranged at described adjusting knob other and with described controlling organization
Communication connection.
Hydrogen Atom Frequency Standard demagnetizer the most according to claim 1, it is characterised in that described control
Mechanism includes that a PC of communication connection controls end and a microprocessor, and described PC controls end and is used for arranging institute
Stating control program, described microprocessor receives described control program and controls according to described control program described
Drive mechanism is automatically adjusted the output electric current of described first transformator.
Hydrogen Atom Frequency Standard demagnetizer the most according to claim 4, it is characterised in that described control
Mechanism also includes that a data base, described data base prestore the relation function of a plurality of magnetic field intensity and time,
Described PC controls end and is connected with described database communication.
Hydrogen Atom Frequency Standard demagnetizer the most according to claim 5, it is characterised in that described magnetic field
The relation function of intensity and time includes formula (1):
H=Ae-kt(1)；
Wherein, H is magnetic field intensity, and A is magnetic field amplitude, and e is the truth of a matter, and k is natural number coefficient, when t is
Between；And/or formula (2):
H=kt (2)；
Wherein, H is magnetic field intensity, and k is natural number coefficient, and t is the time.
Hydrogen Atom Frequency Standard demagnetizer the most according to claim 4, it is characterised in that also include one
Electrical alternating contact switch, described electrical alternating contact switch is series at described first transformator and described second transformator
Between；And described electrical alternating contact switch connects described microprocessor, described microprocessor is additionally operable to according to institute
State control program and control the break-make of described electrical alternating contact switch.
8. a demagnetizing method based on the Hydrogen Atom Frequency Standard demagnetizer described in claim 1, including step
Rapid:
S1: a plurality of magnetic field intensity that prestores in a data base of described controlling organization and the relation letter of time
Number；
S2: regulate the output voltage of described first transformator to an initial value by described controlling organization；
S3: by described controlling organization input needed for control parameter and call described magnetic field intensity with
The relation function of time forms described control program；
S4: turn on the circuit between described first transformator and described second transformator；
S5: described controlling organization controls described drive mechanism according to described control program and is automatically adjusted described the
One transformator output electric current and by described second transformator generation magnetic field one workpiece is demagnetized；
S6: after described workpiece has demagnetized, cuts off between described first transformator and described second transformator
Path.
Demagnetizing method the most according to claim 8, it is characterised in that described magnetic field intensity and time
Relation function include formula (1):
H=Ae-kt(1)；
Wherein, H is magnetic field intensity, and A is magnetic field amplitude, and e is the truth of a matter, and k is natural number coefficient, when t is
Between；And/or formula (2):
H=kt (2)；
Wherein, H is magnetic field intensity, and k is natural number coefficient, and t is the time.
Demagnetizing method the most according to claim 8, it is characterised in that described control parameter includes:
Umber of pulse and time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610519583.8A CN105938752B (en) | 2016-07-05 | 2016-07-05 | Hydrogen Atom Frequency Standard demagnetizer and demagnetizing method |
Applications Claiming Priority (1)
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| EP1137291A2 (en) * | 2000-03-23 | 2001-09-26 | Micronas Munich GmbH | Degaussing circuitry |
| CN202134309U (en) * | 2011-05-10 | 2012-02-01 | 上海瑞穗磁气有限公司 | Intelligent demagnetizer |
| CN204257315U (en) * | 2014-12-01 | 2015-04-08 | 沈阳工业大学 | A kind of intelligent magnetising or demagnetising apparatus of nanometer two-phase magnetic material |
| CN104538150A (en) * | 2014-12-18 | 2015-04-22 | 河南机电高等专科学校 | Bearing ring demagnetizing device |
| CN204332580U (en) * | 2014-12-17 | 2015-05-13 | 沈阳隆基电磁科技股份有限公司 | A kind of Constant charge soil demagnetizer of frequency-adjustable |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1137291A2 (en) * | 2000-03-23 | 2001-09-26 | Micronas Munich GmbH | Degaussing circuitry |
| CN202134309U (en) * | 2011-05-10 | 2012-02-01 | 上海瑞穗磁气有限公司 | Intelligent demagnetizer |
| CN204257315U (en) * | 2014-12-01 | 2015-04-08 | 沈阳工业大学 | A kind of intelligent magnetising or demagnetising apparatus of nanometer two-phase magnetic material |
| CN204332580U (en) * | 2014-12-17 | 2015-05-13 | 沈阳隆基电磁科技股份有限公司 | A kind of Constant charge soil demagnetizer of frequency-adjustable |
| CN104538150A (en) * | 2014-12-18 | 2015-04-22 | 河南机电高等专科学校 | Bearing ring demagnetizing device |
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