CN108181595A - environmental magnetic field test device, test method and computer readable storage medium - Google Patents
environmental magnetic field test device, test method and computer readable storage medium Download PDFInfo
- Publication number
- CN108181595A CN108181595A CN201810134637.8A CN201810134637A CN108181595A CN 108181595 A CN108181595 A CN 108181595A CN 201810134637 A CN201810134637 A CN 201810134637A CN 108181595 A CN108181595 A CN 108181595A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- magnetic
- signal
- test device
- environmental
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 194
- 238000012360 testing method Methods 0.000 title claims abstract description 79
- 230000007613 environmental effect Effects 0.000 title claims abstract description 44
- 238000010998 test method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000000523 sample Substances 0.000 description 27
- 238000005070 sampling Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 9
- 241000238366 Cephalopoda Species 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013102 re-test Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/022—Measuring gradient
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The present invention provides a kind of environmental magnetic field test device, test method and computer readable storage medium, environmental magnetic field test device and includes：Magnetic senses gradiometer, one is set to without on magnetic stent, for detecting the magnetic field intensity of its environment；Vibrating sensor is set to ground flat surface, for detecting Horizon vibration；Cabinet is tested, is electrically connected for passing through a connector and magnetic sensing gradiometer, with the vibration signal that magnetic field signal and vibrating sensor caused by acquiring magnetic sensing gradiometer are illustrated, and magnetic field signal and vibration signal are subjected to corresponding processing；Analyzer is electrically connected with test cabinet, for analyzing test cabinet treated magnetic field signal and vibration signal, to assess the environment.Environment measurement of magnetic field device is portable easy-to-use in the present invention, and modular dismounting combination, normal-temperature operation is safeguarded；Testing range is enough big, and the enough height of precision meet most of conventional environment measurement of magnetic field；Appraisal procedure is effective, various dimensions observation sample, and information is more rich.
Description
Technical field
The invention belongs to magnetic field measurement technology fields, are related to a kind of test device and test method, more particularly to one kind
Environmental magnetic field test device, test method and computer readable storage medium.
Background technology
Magnetocardiogram (Magnetocardiogram, MCG) instrument is a kind of noninvasive, and contactless, the novel heart of high specific is examined
Treat instrument.Magnetocardiograph uses extremely sensitive superconducting quantum interference device (Superconducting QUantum
Interference Device, SQUID) make Magnetic Sensor, certain area heart magnetic is believed in the plane of scanning human heart top
Number, magnetic information imaging is carried out to heart.But highly sensitive Magnetic Detection System, it is selective to electromagnetic environment, it completes to target
Environmental magnetic field monitors and evaluation work is just to propose work using SQUID development weak magnetic survey and the important of system application, main
It is magnetic field space distribution characteristics in monitoring objective environment field, time domain cymomotive force and Horizon Vibration Parameter, and whether assess it full
Sufficient SQUID weak magnetic survey condition.Wherein, magnetic field space distribution is to influence the main and direct factor of weak magnetic survey application；Horizon
Vibration Parameter generates opposite micro-displacement by magnetic probe in environmental magnetic field, and cutting magnetic induction line interferes, be it is secondary and
Connect factor.Therefore, to ensure that SQUID weak magnetics detection application is smoothly carried out, it is necessary to ensure the magnetic field space of target environment field first
Distribution and terrace vibration meet relevant art parameter.
The system or device of environmental monitoring are currently used for, usually there are following defects：
1) magnetic-field component and terrace oscillating component cannot be measured simultaneously；
2) system or device are complicated, portability and handling deficiency.
Therefore, a kind of environmental magnetic field test device, test method and computer readable storage medium how are provided, to solve
The prior art cannot measure magnetic-field component and terrace oscillating component simultaneously, and system or device are complicated, portability and handling deficiency
The defects of, it is real to have become the technical issues of those skilled in the art are urgently to be resolved hurrily.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of environmental magnetic field test device,
Test method and computer readable storage medium cannot measure magnetic-field component and terrace vibration point simultaneously for solving the prior art
The problem of amount, system or device are complicated, portability and handling deficiency.
In order to achieve the above objects and other related objects, one aspect of the present invention provides a kind of environmental magnetic field test device, packet
It includes：Magnetic senses gradiometer, one is set to without on magnetic stent, for detecting the magnetic field intensity of its local environment；Vibrating sensor, if
Ground flat surface is placed in, for detecting Horizon vibration；Cabinet is tested, it is electrical for passing through a connector and magnetic sensing gradiometer
Connection, with the vibration signal that magnetic field signal and the vibrating sensor caused by acquiring magnetic sensing gradiometer are illustrated,
And the magnetic field signal and vibration signal are subjected to corresponding processing；Analyzer, with it is described test cabinet be electrically connected, for pair
Test cabinet treated magnetic field signal and vibration signal are analyzed, to assess the environment.
In one embodiment of the invention, the environmental magnetic field test device includes the 2N magnetic sensing gradiometers, and N is
Positive integer more than or equal to 1.
In one embodiment of the invention, the magnetic sensing gradient is calculated as three-component magnetic sensing gradiometer, wherein, Mei Gesan
Component magnetic sensing gradiometer includes three same models, completely identical in structure simple component Magnetic Sensor, simple component magnetic sensing
To be fitted vertically two-by-two on the no magnetic stent between device；The vibrating sensor is shaken by the simple component of three pairwise orthogonals
Dynamic sensor is formed.
In one embodiment of the invention, the no magnetic stent includes positioning pedestal, vertical supports and H-type fixed arm；Institute
It is the non-splicing vertical supports for including a root post or the sliceable vertical supports including at least two root posts to state vertical supports.
In one embodiment of the invention, the center of the positioning pedestal offers threaded hole；When the no magnetic stent is
During non-splicing vertical supports, the H-type fixed arm is laterally and the top of column is fixed in intermediate region；When the no magnetic branch
When frame is sliceable vertical supports, the column bottom heart of the first root post to root post second from the bottom is provided with and the positioning pedestal
The matched connector of screw thread hole shape, the fore-set heart are provided with threaded hole, and the connector of first column is rotatably connected in the positioning
In the threaded hole of pedestal, the first root post, the second root post, until root post second from the bottom is screwed on successively；Last root post
The column bottom heart connector be rotatably connected in the root post second from the bottom the fore-set heart threaded hole；The H-type fixed arm laterally,
And intermediate region is fixed on the second root post.
In one embodiment of the invention, the described magnetic sensing gradiometers of 2N parallelly, be symmetrically disposed on the H-type and consolidate
The both ends of fixed arm.
In one embodiment of the invention, penetrated between the magnetic sensing gradiometer and the connector by 12 core 62GB types
Frequency shielded cable is electrically connected.
In one embodiment of the invention, the magnetic field signal and vibration signal are carried out corresponding place by the test cabinet
Reason includes magnetic field signal and vibration signal carrying out analog-to-digital conversion, and the data after analog-to-digital conversion are carried out binary coding.
In one embodiment of the invention, the connector is front end circuit box, is carried for sensing gradiometer for the magnetic
Power supply source carries out signal isolation and impedance transformation to magnetic field signal caused by magnetic sensing gradiometer.
Another aspect of the present invention provides a kind of test method based on the environmental magnetic field test device, the test method
Including：Time-domain information of the record through the processed magnetic field signal of the test cabinet and vibration signal；Time-domain information is converted into
Frequency domain information obtains the magnetic field signal of the environmental magnetic field test device local environment and the amplitude of each frequency point of vibration signal, with
The therefrom direct current of DC quantity, maximum value, minimum value, maximum changing value and the sample variance of extraction magnetic field signal and vibration signal
Amount, maximum value, minimum value, maximum changing value and sample variance, to assess the environment.
Last aspect of the present invention provides a kind of computer readable storage medium, is stored thereon with computer program, the journey
The test method is realized when sequence is executed by processor.
As described above, the environmental magnetic field test device, test method and the computer readable storage medium of the present invention, tool
There is following advantageous effect：
Heretofore described environmental magnetic field test device is portable easy-to-use, and modular dismounting combination, normal-temperature operation is safeguarded；Test
Range is enough big, and the enough height of measuring accuracy meet most of conventional environment measurement of magnetic field；Appraisal procedure is effective, various dimensions observation sample,
Information is more rich, and conclusion is more convincing.
Description of the drawings
Fig. 1 is shown as theory structure schematic diagram of the environmental magnetic field test device of the present invention in an embodiment.
One without magnetic stent that Fig. 2 is shown as the present invention implements dimensional structure diagram.
Fig. 3 is shown as flow signal of the test method based on environmental magnetic field test device of the present invention in an embodiment
Figure.
Component label instructions
1 environmental magnetic field test device
11 magnetic sense gradiometer
12 without magnetic stent
13 vibrating sensors
14 connectors
15 test cabinets
16 analyzers
121 positioning pedestals
122 vertical supports
123 H-type fixed arms
The first root posts of 122A
The second root posts of 122B
S1~Sn steps
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that in the absence of conflict, following embodiment and implementation
Feature in example can be combined with each other.
It should be noted that the diagram provided in following embodiment only illustrates the basic structure of the present invention in a schematic way
Think, component count, shape and size when only display is with related component in the present invention rather than according to actual implementation in schema then
It draws, kenel, quantity and the ratio of each component can be a kind of random change during actual implementation, and its assembly layout kenel
It is likely more complexity.
Embodiment one
The present embodiment provides a kind of environmental magnetic field test device, including：
Magnetic senses gradiometer, one is set to without on magnetic stent, for detecting the magnetic field intensity of its local environment；
Vibrating sensor is set to ground flat surface, for detecting Horizon vibration；
Cabinet is tested, is electrically connected with magnetic sensing gradiometer for passing through a connector, is sensed with acquiring the magnetic
The vibration signal that magnetic field signal caused by gradiometer and the vibrating sensor are illustrated, and by the magnetic field signal and vibration
Signal carries out corresponding processing；
Analyzer is electrically connected with the test cabinet, for believing test cabinet treated magnetic field signal and vibration
It number is analyzed, to assess the environment.
The environmental magnetic field test device provided below with reference to diagram the present embodiment is described in detail.Please refer to figure
1, it is shown as theory structure schematic diagram of the environmental magnetic field test device in an embodiment.As shown in Figure 1, the environmental magnetic field is surveyed
Trial assembly puts 1 and includes magnetic sensing gradiometer 11, without magnetic stent 12, vibrating sensor 13, connector 14, test cabinet 15 and analyzer
16。
The magnetic sensing gradiometer 11 is used to detect the magnetic field intensity of its local environment.The environmental magnetic field test device packet
The 2N magnetic sensing gradiometers are included, N is the positive integer more than or equal to 1.In this present embodiment, N is equal to 1.
In the present embodiment, the magnetic sensing gradiometer 11 senses gradiometer (i.e. X, Y, Z component) for three-component magnetic,
In, each three-component magnetic sensing gradiometer includes three same models, completely identical in structure simple component Magnetic Sensor, single point
To be vertically installed at two-by-two on the no magnetic stent 12 between amount Magnetic Sensor.Two groups of three-component Magnetic Sensor installation directions are protected
It holds consistent.
It is the arrangement of sensor below：
Three-component magnetic sensing gradiometer is taken out first, it is vertically fixed on to the vertical mounting hole of the H arms of no magnetic stent
In (according to test height demand, adjust suitable height vertically up and down, and terrain clearance is tested with ruler), regulate test side
Position, can lock three-component magnetic induction gradiometer shell with knob is screwed, level meter finally is positioned over three-component magnetic induction gradient
Cover top portion is counted, micro-adjusting center knob makes its horizontal state.Secondly, vibrating sensor is taken out, and target detection point earth's surface is cleaned,
Three simple component vibrating sensors (plasticine or papery double faced adhesive tape) are fixed, and make its direction in three-component magnetic using adhesive agent
It is basically identical to sense gradiometer mark direction.
The no magnetic stent 12 senses gradiometer 11 for fixing the magnetic.Referring to Fig. 2, it is shown as the one of no magnetic stent
Implement dimensional structure diagram.As shown in Fig. 2, the no magnetic stent 12 include using positioning pedestal 121 made of non-magnetic material,
Vertical supports 122 and H-type fixed arm 123.In the present embodiment, ground is placed in use, positioning pedestal 121 is put down gently, tablet
Upward, with the use of Woodworker leveler, the adjusting bolt of Rotating Plates periphery quadrangle realizes tablet for center band mechanical tapping side
It is horizontal.The center of the positioning pedestal 121 offers threaded hole.The vertical supports 122 are to include the non-splicing of a root post
Vertical supports or the sliceable vertical supports including at least two root posts.
When the no magnetic stent is non-splicing vertical supports, the H-type fixed arm is laterally and intermediate region is fixed on
The top of column.
When the no magnetic stent is sliceable vertical supports, the column bottom heart of the first root post to root post second from the bottom is set
The matched connector of screw thread hole shape with the positioning pedestal is equipped with, the fore-set heart is provided with threaded hole, vertical by described first
The connector of column is screwed on the positioning pedestal, the first root post, the second root post, until root post second from the bottom revolves successively
It connects；The threaded hole that the connector of the column bottom heart of last root post is screwed on the fore-set heart of the root post second from the bottom；The H
Type fixed arm is laterally and intermediate region is fixed on the second root post.In the present embodiment, the height that can be needed according to test
Degree determines the quantity of column.
As shown in Fig. 2, the no magnetic stent 12 is sliceable vertical supports, and the sliceable vertical supports are vertical by first
Column 122A and the second root post 122B is formed.The column bottom heart of first root post 122A is provided with the spiral shell with the positioning pedestal 121
The matched connector of pit shape, the fore-set heart are provided with threaded hole, and it is described fixed that the connector of the first column 122A is rotatably connected in
In the threaded hole of position pedestal 121, the connector of the column bottom heart of the second root post 122B is rotatably connected in the fore-set of first root post
In the threaded hole of the heart；The H-type fixed arm is laterally and intermediate region is fixed on the second root post 122B.
As shown in Fig. 2, 2 magnetic sensing gradiometers 11 parallelly, be symmetrically disposed on the H-type fixed arm 123
Both ends.
The vibrating sensor 13 is set to ground flat surface, for detecting Horizon vibration.In this present embodiment, the vibration
Sensor is made of the simple component vibrating sensor of three pairwise orthogonals, is tested with the three-component for realizing terrace vibration.It is described to shake
Dynamic sensor 13 specifically, is connected to using BNV (M-M) connecting line on the test cabinet 15 by radio shielding cable.
The magnetic sensing gradiometer 11 is electrically connected by a connector 14 and the test cabinet 15.With the present embodiment
In, the connector 14 is front end circuit box.Pass through 12 core 62GB between the magnetic sensing gradiometer and the front end circuit box
Type radio shielding cable is electrically connected.The front end circuit box is especially by 15 needle D (M) type -9BNC (F).The front end circuit
Box is used to provide power supply for magnetic sensing gradiometer 11, and letter is carried out to magnetic field signal caused by magnetic sensing gradiometer 11
Number isolation and impedance transformation, and can be used as magnetic sensing gradiometer test port.
In the present embodiment, it takes out and connects front end circuit 220v power supply adaptors, power on, observation power supply indicator is
It is no working properly, if abnormal, power supply is initially switched off, checks each interface of adapter, re-test；If normal, come in, and row is grasped in next step
Make；
It takes out and connects test cabinet 220v power supply adaptors, power on, whether observation power supply indicator is working properly, if
It is abnormal, power supply is initially switched off, checks each interface of adapter, re-test；If normal, come in, and row operates in next step；
It takes out and connects test computer 220v adapters, power on, whether observation power supply indicator is working properly, if not just
Often, power supply is initially switched off, checks each interface of adapter, re-test；If normal, come in, and row operates in next step.
The test cabinet 15 being electrically connected with the vibrating sensor 13 and connector 14 is terraced to acquire the magnetic sensing
The vibration signal that magnetic field signal and the vibrating sensor caused by degree meter are illustrated, and the magnetic field signal and vibration are believed
Number carry out corresponding processing.In the present embodiment, the test cabinet 15 corresponds to the magnetic field signal and vibration signal
Processing include magnetic field signal and vibration signal carrying out analog-to-digital conversion, and the data after analog-to-digital conversion are carried out binary system volume
Code.
Specifically, the test cabinet 15 is provided with 4 sampling card slots, between card slot independently of each other；Each sampling card, there is 4
A independent sample channel.Magnetic senses gradient in respect of XYZ multipath output signals, by shielded cable successively by magnetic field signal output terminal
Input port is correspondingly connected on mouth and sampling card.
The analyzer 16 being electrically connected with the test cabinet 15 is used for test cabinet treated magnetic field signal and shakes
Dynamic signal is analyzed, to assess the environment.In the present embodiment, the analyzer 16 be human-computer interaction device, interpersonal interaction
Interface includes data acquisition interface and data assay surface；
Data acquisition interface is set comprising observing and controlling sampling parameter, including but not limited to the setting of hardware testing channel, sampling control
Button processed, sampling duration and sample rate setting, samples storage filename and file path setting；It sets up standby, acquisition can be started,
In gatherer process, each channel data can be observed in real time.
Data analysis interface includes analysis and sets, including but not limited to analysis and Control button and Study document path.Setting
It is complete, analysis can be started, after analysis, data feature values and characteristic frequency spectrum can be obtained；Characteristic value and spectral magnitude are read,
Complete preliminary judgement.
Specifically, binary magnetic field signal and vibration signal are converted into hexadecimal data by the analyzer 16 first
Form is re-recorded through the test processed magnetic field signal of cabinet (B (X1/Y1/Z1, X2/Y2/Z2)) and vibration signal
The time-domain information of (Vibration (X/Y/Z)), is finally converted into frequency domain information by time-domain information, obtains the environmental magnetic field and surveys
The magnetic field signal of local environment and the amplitude of each frequency point of vibration signal are put in trial assembly, therefrom to extract the DC quantity of magnetic field signal
(mean, magnetic field signal sample average), maximum value (+Vpk, magnetic field signal forward direction peak value), minimum value (bear by-Vpk, magnetic field signal
To peak value), maximum changing value (Vpp=+Vpk- (- Vpk)) and the DC quantity of sample variance S and vibration signal (mean, vibration
Sample of signal mean value), maximum value (+Vpk, vibration signal forward direction peak value), minimum value (- Vpk, vibration signal negative peak), most
Big changing value (Vpp=+Vpk- (- Vpk)) and sample variance S, export above-mentioned data, to assess the environment.In the present embodiment,
Assessment includes sample variance, especially Z-direction, needs small as far as possible；Frequency domain information is observed, less than 200Hz frequency ranges, is whether there is bright
Aobvious peak signal.
In the present embodiment, by time-domain information, after frequency domain information and sample statistics sample information with time-domain diagram, frequency domain figure,
Statistical chart, DC quantity, maximum fluctuation value including the fluctuation of each component time domain, amplitude-frequency curve output.
The concrete operation method of the analyzer 16 is as follows：
First, open analyzer 16, start hardware driving control software, detect and exact p-value case in hardware effort just
Often, if normally, carrying out in next step；If abnormal, according to flow, software or analyzer 16 can be reopened, restarting is surveyed
Test-run a machine case.
Second, start test software, on interface successively configuration testing channel, sample rate and sampling time, file storage road
Diameter and filename.After sensor powers on 15min stable working states, can mouse click START button, open sampling, sampling
In the process, each channel signal variation can be observed；
If sampling midway needs to suspend or abandons sampling, " pause " can be clicked successively and " exits " button；
If normal sample is completed, filename (place file replaced by new file) can be changed, using last time sampling parameter,
Continue to sample；Can click " exit " button, reconfigure sampling parameter.
Third starts analysis software, and sample rate is configured in the selection analysis filename on interface, and mouse is clicked " analysis " and pressed
Button, analysis result provide time-domain diagram, frequency domain figure, statistical chart, DC quantity, maximum fluctuation value including the fluctuation of each component time domain, width
Value-frequency curve, sample statistics variance and confidence interval.It may be selected " printed report ", output test data；Click " exit " press
Button exits analysis module.
4th, after the completion of test, according to above-mentioned inverse process, pack up equipment vanning.
Environmental magnetic field test device is portable easy-to-use described in the present embodiment, and modular dismounting combination, normal-temperature operation is safeguarded；Test
Range is enough big, and the enough height of measuring accuracy meet most of conventional environment measurement of magnetic field；Appraisal procedure is effective, various dimensions observation sample,
Information is more rich, and conclusion is more convincing.
Embodiment two
The present embodiment provides a kind of test method based on environmental magnetic field test device described in embodiment one, referring to Fig. 3,
It is shown as flow diagram of the test method based on environmental magnetic field test device in an embodiment.As shown in figure 3, the survey
Method for testing includes：
S31 according to acquisition instructions, acquires the time domain letter of the processed magnetic field signal of the test cabinet and vibration signal
Breath, and binary magnetic field signal and vibration signal are converted into hexadecimal data form.
S32 records the time-domain information through the processed magnetic field signal of the test cabinet and vibration signal.In the present embodiment
In, according to demand, section time high sampling rate or long duration low sampling rate can be used, environmental magnetic field and vibration all the period of time can be obtained
Fluctuation characteristic and certain objective time interval specifying information.
Time-domain information is converted into frequency domain information by S33, obtains the magnetic field letter of the environmental magnetic field test device local environment
Number and each frequency point of vibration signal amplitude, therefrom to extract the DC quantity of magnetic field signal, maximum value, minimum value, maximum changing value
And sample variance and the DC quantity of vibration signal, maximum value, minimum value, maximum changing value and sample variance, to assess the environment.
Specifically, S33 includes：
Time-domain information is converted into frequency domain information, obtain the environmental magnetic field test device local environment magnetic field signal and
The amplitude of each frequency point of vibration signal, therefrom to extract the DC quantity of magnetic field signal (mean, magnetic field signal sample average), maximum value
(+Vpk, magnetic field signal forward direction peak value), minimum value (- Vpk, magnetic field signal negative peak), maximum changing value (Vpp=+Vpk- (-
Vpk)) and the DC quantity of sample variance S and vibration signal (mean, vibration signal sample average), maximum value (+Vpk, vibration letter
Number positive peak value), minimum value (- Vpk, vibration signal negative peak), maximum changing value (Vpp=+Vpk- (- Vpk)) and sample
Variance S exports above-mentioned data, to assess the environment.In the present embodiment, assessment includes sample variance, especially Z-direction, needs
It is small as far as possible；Frequency domain information is observed, less than 200Hz frequency ranges, whether there is obvious peak value signal.
The present embodiment also provides a kind of computer readable storage medium, is stored thereon with computer program, which is located
It manages device and performs above-mentioned test method.One of ordinary skill in the art will appreciate that：Realize above-mentioned each method embodiment whole or
Part steps can be completed by the relevant hardware of computer program.Aforementioned computer program can be stored in a computer
In readable storage medium storing program for executing.The program when being executed, performs the step of including above-mentioned each method embodiment；And aforementioned storage medium
Including：The various media that can store program code such as ROM, RAM, magnetic disc or CD.
In conclusion heretofore described environmental magnetic field test device is portable easy-to-use, and modular dismounting combination, normal-temperature operation
It safeguards；Testing range is enough big, and the enough height of measuring accuracy meet most of conventional environment measurement of magnetic field；Appraisal procedure is effective, various dimensions
Observation sample, information is more rich, and conclusion is more convincing.So the present invention effectively overcomes various shortcoming of the prior art
And has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (11)
1. a kind of environmental magnetic field test device, which is characterized in that including：
Magnetic senses gradiometer, one is set to without on magnetic stent, for detecting the magnetic field intensity of its local environment；
Vibrating sensor is set to ground flat surface, for detecting Horizon vibration；
Cabinet is tested, is electrically connected for passing through a connector with magnetic sensing gradiometer, to acquire the magnetic sensing gradient
The vibration signal that magnetic field signal caused by meter and the vibrating sensor are illustrated, and by the magnetic field signal and vibration signal
Carry out corresponding processing；
Analyzer is electrically connected with the test cabinet, for test cabinet treated magnetic field signal and vibration signal into
Row analysis, to assess the environment.
2. environmental magnetic field test device according to claim 1, which is characterized in that the environmental magnetic field test device includes
The 2N magnetic sensing gradiometers, N is the positive integer more than or equal to 1.
3. environmental magnetic field test device according to claim 2, which is characterized in that
The magnetic sensing gradient is calculated as three-component magnetic sensing gradiometer, wherein, each three-component magnetic sensing gradiometer includes three
A same model, completely identical in structure simple component Magnetic Sensor, between simple component Magnetic Sensor be fitted vertically two-by-two in
On the no magnetic stent；
The vibrating sensor is made of the simple component vibrating sensor of three pairwise orthogonals.
4. environmental magnetic field test device according to claim 2, which is characterized in that the no magnetic stent includes positioning base
Seat, vertical supports and H-type fixed arm；The vertical supports are to include the non-splicing vertical supports of a root post or including at least
The sliceable vertical supports of two root posts.
5. environmental magnetic field test device according to claim 4, which is characterized in that
The center of the positioning pedestal offers threaded hole；
When the no magnetic stent is non-splicing vertical supports, the H-type fixed arm is laterally and column is fixed in intermediate region
Top；
When the no magnetic stent is sliceable vertical supports, the column bottom heart of the first root post to root post second from the bottom is provided with
With the matched connector of screw thread hole shape of the positioning pedestal, the fore-set heart is provided with threaded hole, the connection of first column
Part is rotatably connected in the threaded hole of the positioning pedestal, the first root post, the second root post, until root post second from the bottom revolves successively
It connects；The connector of the column bottom heart of last root post is rotatably connected in the threaded hole of the fore-set heart of the root post second from the bottom；The H
Type fixed arm is laterally and intermediate region is fixed on the second root post.
6. environmental magnetic field test device according to claim 4, which is characterized in that the 2N magnetic sensing gradiometers are parallel
Ground, the both ends for being symmetrically disposed on the H-type fixed arm.
7. environmental magnetic field test device according to claim 1, which is characterized in that the magnetic sensing gradiometer and the company
It connects and is electrically connected by 12 core 62GB type radio shieldings cables between device.
8. environmental magnetic field test device according to claim 1, which is characterized in that the test cabinet believes the magnetic field
Number and vibration signal carry out corresponding processing and include magnetic field signal and vibration signal being carried out analog-to-digital conversion, and will be after analog-to-digital conversion
Data carry out binary coding.
9. environmental magnetic field test device according to claim 1, which is characterized in that the connector is front end circuit box,
Power supply is provided for sensing gradiometer for the magnetic, signal isolation is carried out to magnetic field signal caused by magnetic sensing gradiometer
And impedance transformation.
It is 10. a kind of based on power 1 to the test method of any one of the power 9 environmental magnetic field test device, which is characterized in that the survey
Method for testing includes：
Time-domain information of the record through the processed magnetic field signal of the test cabinet and vibration signal；
Time-domain information is converted into frequency domain information, obtains magnetic field signal and the vibration of the environmental magnetic field test device local environment
The amplitude of each frequency point of signal, therefrom to extract the DC quantity of magnetic field signal, maximum value, minimum value, maximum changing value and sample side
DC quantity, maximum value, minimum value, maximum changing value and the sample variance of difference and vibration signal, to assess the environment.
11. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
Test method described in claim 10 is realized during execution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134637.8A CN108181595A (en) | 2018-02-09 | 2018-02-09 | environmental magnetic field test device, test method and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810134637.8A CN108181595A (en) | 2018-02-09 | 2018-02-09 | environmental magnetic field test device, test method and computer readable storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108181595A true CN108181595A (en) | 2018-06-19 |
Family
ID=62552577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810134637.8A Pending CN108181595A (en) | 2018-02-09 | 2018-02-09 | environmental magnetic field test device, test method and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108181595A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4489274A (en) * | 1980-12-10 | 1984-12-18 | The United States Of America As Represented By The Secretary Of The Navy | Rotating SQUID magnetometers and gradiometers |
| JP2000037362A (en) * | 1998-07-21 | 2000-02-08 | Toshiba Corp | Device for removing environment noise magnetic field |
| JP2001087235A (en) * | 1999-09-27 | 2001-04-03 | Hitachi Ltd | Living body magnetism measuring device |
| CN2630862Y (en) * | 2003-02-10 | 2004-08-04 | 慕忠义 | Vibration coil weak magnetic field gradient measuring instrument |
| CN1735376A (en) * | 2003-01-29 | 2006-02-15 | 独立行政法人情报通信研究机构 | Magnetoencephalography device and method of using the same |
| CN101089645A (en) * | 2007-07-17 | 2007-12-19 | 蹇兴亮 | Low-intensity magnetic field gradient measuring device and method |
| CN103016611A (en) * | 2012-12-14 | 2013-04-03 | 中国科学院上海微系统与信息技术研究所 | Damping device for magnetocardiograph and damping method |
| CN103258404A (en) * | 2012-02-21 | 2013-08-21 | 新科实业有限公司 | Earthquake monitoring device, earthquake monitoring system and earthquake monitoring method |
| CN104215279A (en) * | 2014-09-18 | 2014-12-17 | 贵州电力试验研究院 | Online environment monitoring system and environment monitoring method |
| CN105203973A (en) * | 2015-09-18 | 2015-12-30 | 中国科学院电工研究所 | Weak magnetism detection device |
| CN105203203A (en) * | 2015-09-07 | 2015-12-30 | 中国科学院地质与地球物理研究所 | Micro-vibration measurement device based on magnetic field and measurement method thereof |
| CN105785288A (en) * | 2014-12-19 | 2016-07-20 | 中国科学院上海微系统与信息技术研究所 | Aeromagnetic survey device based on low-temperature superconductive SQUID |
| CN106556811A (en) * | 2016-11-22 | 2017-04-05 | 上海裕达实业有限公司 | A kind of high-precision magnetic survey method for testing and device |
| CN208140904U (en) * | 2018-02-09 | 2018-11-23 | 中国科学院上海微系统与信息技术研究所 | Environmental magnetic field test device |
-
2018
- 2018-02-09 CN CN201810134637.8A patent/CN108181595A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4489274A (en) * | 1980-12-10 | 1984-12-18 | The United States Of America As Represented By The Secretary Of The Navy | Rotating SQUID magnetometers and gradiometers |
| JP2000037362A (en) * | 1998-07-21 | 2000-02-08 | Toshiba Corp | Device for removing environment noise magnetic field |
| JP2001087235A (en) * | 1999-09-27 | 2001-04-03 | Hitachi Ltd | Living body magnetism measuring device |
| CN1735376A (en) * | 2003-01-29 | 2006-02-15 | 独立行政法人情报通信研究机构 | Magnetoencephalography device and method of using the same |
| CN2630862Y (en) * | 2003-02-10 | 2004-08-04 | 慕忠义 | Vibration coil weak magnetic field gradient measuring instrument |
| CN101089645A (en) * | 2007-07-17 | 2007-12-19 | 蹇兴亮 | Low-intensity magnetic field gradient measuring device and method |
| CN103258404A (en) * | 2012-02-21 | 2013-08-21 | 新科实业有限公司 | Earthquake monitoring device, earthquake monitoring system and earthquake monitoring method |
| CN103016611A (en) * | 2012-12-14 | 2013-04-03 | 中国科学院上海微系统与信息技术研究所 | Damping device for magnetocardiograph and damping method |
| CN104215279A (en) * | 2014-09-18 | 2014-12-17 | 贵州电力试验研究院 | Online environment monitoring system and environment monitoring method |
| CN105785288A (en) * | 2014-12-19 | 2016-07-20 | 中国科学院上海微系统与信息技术研究所 | Aeromagnetic survey device based on low-temperature superconductive SQUID |
| CN105203203A (en) * | 2015-09-07 | 2015-12-30 | 中国科学院地质与地球物理研究所 | Micro-vibration measurement device based on magnetic field and measurement method thereof |
| CN105203973A (en) * | 2015-09-18 | 2015-12-30 | 中国科学院电工研究所 | Weak magnetism detection device |
| CN106556811A (en) * | 2016-11-22 | 2017-04-05 | 上海裕达实业有限公司 | A kind of high-precision magnetic survey method for testing and device |
| CN208140904U (en) * | 2018-02-09 | 2018-11-23 | 中国科学院上海微系统与信息技术研究所 | Environmental magnetic field test device |
Non-Patent Citations (3)
| Title |
|---|
| 中国计量科学研究院: "计量科学研究50年》", vol. 1, 31 January 2005, 中国计量出版社, pages: 627 - 630 * |
| 王毅 等: "面向超导心磁图仪应用的环境评估方法", 现代电子技术, vol. 42, no. 10, 10 May 2019 (2019-05-10), pages 1 - 4 * |
| 陈亮 等: "超导梯度计及其对环境噪声的抑制能力", 功能材料与器件学报, vol. 14, no. 06, 25 December 2008 (2008-12-25), pages 31 - 36 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106556811B (en) | A kind of high-precision magnetic survey method for testing | |
| CN109444615A (en) | A kind of bunch of cables Conduction Interference field diagnostic and test device and method | |
| CN109870305A (en) | A kind of servo motor testing stand | |
| CN208140904U (en) | Environmental magnetic field test device | |
| CN206990690U (en) | Low frequency noise measurement device | |
| CN205720418U (en) | High tension cable circulating current detector | |
| CN107219430A (en) | The horizontal frictional static attenuating device of textile, test system and its method of testing | |
| CN107179451A (en) | Integrated low frequency noise measurement device | |
| CN108181595A (en) | environmental magnetic field test device, test method and computer readable storage medium | |
| CN2864702Y (en) | Electric field property testing device for electric precipitator | |
| CN102087308A (en) | Electric quantity acquisition and test analyzer and method for power system | |
| CN110308412A (en) | A kind of method and its system of automatically calibrating electrical high capability instrument instrument | |
| CN2932403Y (en) | HV combined electric appliance partial discharge detector | |
| CN206132970U (en) | Ultrasonic wave partial discharge measurement system under site environment | |
| CN205607857U (en) | Semi -automatic four -channel coagulation analyzer | |
| Wilson et al. | Comparison of Power System Current Sensors via Playback of Electrical Disturbances | |
| CN211263393U (en) | Gas sensor detection equipment | |
| CN209859432U (en) | Three-channel oscillograph and signal source training board | |
| CN204101639U (en) | A kind of lightning impulse earth loop impedance test instrument | |
| Sim et al. | Software for a database-controlled measurement system at the Fermilab Magnet Test Facility | |
| Hämäläinen | A 24-channel planar gradiometer: System design and analysis of neuromagnetic data | |
| CN105759226B (en) | Magnetostatic field state verification analysis method inside a kind of train | |
| CN206876791U (en) | The horizontal frictional static attenuating device of textile and its test system | |
| Sicree et al. | Comparison of magnetic flux density meter responses over a database of residential measurements | |
| Olsen et al. | An evaluation of instrumentation used to measure AC power system magnetic fields |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |