CN110161112A - Measure the equipment and measurement method of jewel magnetism - Google Patents
Measure the equipment and measurement method of jewel magnetism Download PDFInfo
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- CN110161112A CN110161112A CN201810065339.8A CN201810065339A CN110161112A CN 110161112 A CN110161112 A CN 110161112A CN 201810065339 A CN201810065339 A CN 201810065339A CN 110161112 A CN110161112 A CN 110161112A
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- magnetic field
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- magnetism
- magnetic
- measuring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
Abstract
The invention discloses a kind of equipment and measurement method for measuring jewel magnetism.Wherein, the equipment includes: the first magnetic field generating arrangement (101)；First magnetic field measuring device (102)；Second magnetic field generating arrangement (103)；Second magnetic field measuring device (104)；And processing unit (11).The described method includes: generating the first magnetic field around jewel；Jewel is excited to generate the second magnetic field；The first magnetic field or the second magnetic field are adjusted, and measures the intensity value in the first magnetic field and the intensity value in the second magnetic field；And magnetism of the jewel relative to the first magnetic field is determined according to the intensity value in the first measured magnetic field and the characteristic in the second measured magnetic field.Equipment and measurement method of the invention enables micro magnetism content of material and its parameter of magnetic characteristic in mineral jewel especially aerolite day pearl to obtain the measurement of science.
Description
Technical field
The present invention relates to jewel weak magnetic detection field, in particular to a kind of equipment for measuring jewel magnetism and
Measurement method.
Background technique
Pearl originates in Tibet Himalayas domain in Tibet day, is a kind of rare jewel (claiming nine eyestone shale in science), according to
Scientist, which studies, to be confirmed when most ancient Tibet day pearl original stone is space meteorite hit mountain area before 3000 or four thousand years in high temperature melt
The middle mixed ore for generating a kind of aerolite and calcedony agate, material are a kind of agate containing Martian meteorite ingredient, bead table
There are the fusion trace left after high temperature, Mohs' hardness 7-8.5, and 14 kinds of elements containing Mars rock ingredient in face.Tibet
The internal component and structure of its pearl original stone make it have natural strong magnetic field energy, are the three of crystal according to textual criticism day pearl magnetic field
Times, it is that magnetic field energy is highest in all gemstones.Its pearl absorbs anima in the most pure sacred Buddhist site of this block China of Tibet,
From generation to generation collection support receives aid, hide one of close Sapporo so being otherwise known as, be Buddhism sage's object, have very high practical value and
Reserve value.
The magnetic field energy of its pearl is described very mysterious all the time, never a kind of measuring method of science.Needle
To magnetism content of material micro in above-mentioned mineral jewel especially aerolite day pearl and its parameter of magnetic characteristic can not scientific measurement ask
Topic, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of equipment and measurement method for measuring jewel magnetism, at least to solve mineral treasured
Micro magnetism content of material and its parameter of magnetic characteristic can not scientific the technical issues of measuring in stone especially aerolite day pearl.
The excitation in a kind of day pearl magnetic field provided by the invention and detection method can detecte micro magnetic material in aerolite day pearl
Matter content simultaneously determines its parameter of magnetic characteristic.The present invention provides a kind of judgment basis to determine whether day pearl contains magnetic components.This
Whether invention can also be used for determining in other mineral jewels containing micro magnetisable material.
According to an aspect of the invention, there is provided a kind of magnetic equipment of measurement jewel, which includes: the first magnetic
Field generating means, for generating the first magnetic field around jewel；First magnetic field measuring device, for measuring the strong of the first magnetic field
Angle value；Second magnetic field generating arrangement generates the second magnetic field for exciting jewel；Second magnetic field measuring device, for measuring second
The characteristic in magnetic field；And processing unit, with the first magnetic field generating arrangement, the first magnetic field measuring device, the second magnetic field generating arrangement
It is connected with the second magnetic field measuring device, for adjusting the first magnetic field generating arrangement and the second magnetic field generating arrangement, and according to institute
The intensity value in the first magnetic field and the characteristic in the second measured magnetic field of measurement determine jewel magnetism relevant to the first magnetic field.
Optionally, the first magnetic field generating arrangement includes: yoke, and yoke includes opening, for being inserted into jewel；Magnet exciting coil,
Magnet exciting coil winds yoke and is arranged；And electromagnet power supply, it is connect with magnet exciting coil, provides electric current to magnet exciting coil, and
Processing unit is connect with electromagnet power supply, to control the electric current that electromagnet power supply is provided to magnet exciting coil.
Optionally, the first magnetic field measuring device includes gaussmeter, and the probe of gaussmeter is set to the opening of yoke, and
Processing unit is connect with gaussmeter.
Optionally, the second magnetic field generating arrangement includes: exciter, for exciting jewel；Constant-flow driver is exchanged, for driving
Dynamic exciter；And signal generator, for adjust exchange constant-flow driver driving frequency, wherein exchange constant-flow driver and
Signal generator is connect with processing unit.
Optionally, the second magnetic field measuring device includes: search coil, is arranged at the opening；Digital lock-in amplifier, with spy
Test coil connection, for measure the magnetic directly proportional voltage signal to jewel, wherein processing unit and digital lock-in amplifier
Connection.
Optionally, signal generator is connect with digital lock-in amplifier, so that the signal that signal generator generates passes through all the way
It exchanges constant-flow driver and drives exciter, another output to digital lock-in amplifier is as reference signal.
Optionally, processing unit can be configured to execute following operation: while acquiring the defeated of the digital lock-in amplifier
The magnetic field signal of signal and gaussmeter output out, determines the magnetism change curve relevant to the first magnetic field of jewel, and/or changes
The frequency of signal generator, in the case that the first magnetic field of measurement is fixed magnetic field, the magnetism change relevant to stimulating frequency of jewel
Change curve.
According to another aspect of the present invention, a kind of magnetic method of measurement jewel is additionally provided, this method comprises:
The first magnetic field is generated around jewel；Jewel is excited, the second magnetic field is generated；It adjusts the first magnetic field or the second magnetic field, and measures the
The intensity value of the intensity value in one magnetic field and the second magnetic field；And according to the intensity value in the first measured magnetic field and measured
The characteristic in two magnetic fields determines jewel magnetism relevant to the first magnetic field.
Optionally, determine the jewel magnetism for comprising determining that jewel that operates relevant to the magnetism in the first magnetic field with the first magnetic
The curve of field variation.
Optionally, determine that jewel operation relevant to the magnetism in the first magnetic field includes: the feelings being kept fixed in the first magnetic field
Under condition, the magnetism change curve relevant to the excitation stimulating frequency of jewel of jewel is measured.
In embodiments of the present invention, by providing a kind of equipment and measurement method for measuring jewel magnetism, energy has been reached
In the judgements mineral jewel of enough science whether the purpose containing micro magnetisable material, so that realizing science measures mineral jewel especially
The technical effect of micro magnetism content of material and its parameter of magnetic characteristic in aerolite day pearl.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the signal of the magnetic equipment for measuring jewel of the specific embodiment of patent application according to the present invention
Figure；
Fig. 2 is the specific of the magnetic equipment for measuring jewel of the specific embodiment of patent application according to the present invention
Structure chart；
Fig. 3 is the flow chart of the magnetic method for measuring jewel of the specific embodiment of present patent application；
Fig. 4 is actual measurement profile figure of the aerolite day pearl unit mass magnetism with changes of magnetic field；
Fig. 5 is actual measurement profile figure of the agate edge erosion day pearl unit mass magnetism with changes of magnetic field；
Fig. 6 is the flow chart of data acquisition control of the present invention and data processing software.
In figure, 100: measuring the magnetic equipment of jewel；101: the first magnetic field generating arrangements；102: the first magnetic-field measurements dress
It sets；103: the second magnetic field generating arrangements；104: the second magnetic field measuring devices；1: sample；2: yoke: 3: search coil；4: excitation
Coil；5: exciter: 6: exchange constant-flow driver；7: signal generator；8: digital lock-in amplifier；9: gaussmeter；10: electromagnetism
Ferroelectricity source；11: processing unit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and technology, method and apparatus should be considered as authorizing specification
A part.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, rather than
As limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label and word
Mother indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
It does not need that it is further discussed.
Referring to Fig. 1, the present embodiment provides a kind of magnetic equipment 100 of measurement jewel, which includes: that the first magnetic field is raw
At device 101, for generating the first magnetic field around jewel；First magnetic field measuring device 102, for measuring the first magnetic field
Intensity value；Second magnetic field generating arrangement 103 generates the second magnetic field for exciting jewel；Second magnetic field measuring device 104, is used for
Measure the characteristic in the second magnetic field；And processing unit 11, with the first magnetic field generating arrangement 101, the first magnetic field measuring device 102,
Second magnetic field generating arrangement 104 and the connection of the second magnetic field measuring device 104, for adjusting the first magnetic field generating arrangement 101 and the
Two magnetic field generating arrangements 103, and it is true according to the characteristic of the intensity value in the first measured magnetic field and the second measured magnetic field
Determine magnetism of the jewel relative to the first magnetic field.
Disclosed scheme through the foregoing embodiment excites jewel in the first magnetic field and generates the second magnetic field, and measures the
Two magnetic fields can be obtained magnetic characteristic of jewel in the environment of the first magnetic field.To reach the judgement mineral treasured for capableing of science
In stone whether the purpose containing micro magnetisable material, realize science measurement mineral jewel micro magnetisable material especially in aerolite day pearl
The technical effect of content and its parameter of magnetic characteristic solves micro magnetisable material in above-mentioned mineral jewel especially aerolite day pearl and contains
Amount and its parameter of magnetic characteristic can not scientific the problem of measuring.
Specifically, referring to fig. 2, the first magnetic field generating arrangement 101 includes: yoke 2, and yoke 2 includes opening, for being inserted into
State jewel；Magnet exciting coil 4, magnet exciting coil 4 wind yoke 2 and are arranged；And electromagnet power supply 10, it is connect with magnet exciting coil 4, to
Magnet exciting coil 4 provides electric current.And processing unit 11 is connect with electromagnet power supply 10, to control electromagnet power supply 10 to excitation
The electric current that coil 4 provides.
To which the opening two sides of yoke 2 form the positive and negative polarities of electromagnet, and in measurement, Gem Samples 1 are just inserted in
Between the positive and negative polarities of electromagnet.Further, the processing unit 11 with reference to shown in Fig. 2 can be computer 11.Jewel can be
Day pearl sample 1 as detection.In addition, the specific structure of the first magnetic field generating arrangement 101 is not limited to the above form, other shapes
The mode that magnetic field can be generated around sample 1 of formula is equally applicable to the technical solution of the application.
First magnetic field measuring device 102 includes gaussmeter 9, and the probe of the gaussmeter 9 is set to the opening of yoke 2, and
And processing unit 11 is connect with gaussmeter 9.To, the probe of gaussmeter 9 is also inserted between the positive and negative polarities of electromagnet, and
The intensity value in the first magnetic field between positive and negative polarities is sent to processing unit 11.In addition, the tool of the first magnetic field measuring device 102
Body structure is not limited to the above form, and the mode that magnetic field can be generated around sample 1 of other forms can be similarly applicable in
In the technical solution of the application.
Second magnetic field generating arrangement 103 includes: exciter 5, for exciting jewel；Constant-flow driver 6 is exchanged, for driving
Exciter 5；And signal generator 7, for adjusting the driving frequency of exchange constant-flow driver 6.Wherein exchange constant-flow driver 6
It is connect with signal generator 7 with processing unit 11.In addition, signal generator 7 can be also used for adjusting exchange constant-flow driver 6
Drive amplitude.As a specific example, exciter 5 can be a vibrating mechanism, so that the jewel occurs according to signal
The frequency and/or amplitude for the signal that device 7 generates make the jewel by certain frequency and amplitude vibrations, thus the magnetism in jewel
Substance can produce magnetic dipole radiation, and the intensity of magnetic dipole radiation is directly proportional to the content of magnetisable material in sample.
To in this embodiment, be driven with 11 adjustment signal generators 7 through the processing unit with constant current is exchanged
Dynamic device 6, so as to control the operation of the excitation to sample 1.Such as (but not limited to), control the frequency of the signal to excitation sample 1
Rate and/or amplitude.In addition, the specific structure of the second magnetic field generating arrangement 103 is not limited to the above form, other forms can swash
The mode that hair sample 1 generates magnetic field is equally applicable to the technical solution of the application.
Second magnetic field measuring device 104 includes: search coil 3, is arranged at the opening；Digital lock-in amplifier 8, with detection
Coil 3 connects, for measuring the voltage signal directly proportional to the magnetism of jewel.Wherein processing unit 11 and digital lock-in amplifier
8 connections.To which, the second magnetic field measuring device 104 can be by being set to the search coil 3 on 1 periphery of sample, acquisition excitation
The signal in the second magnetic field that sample 1 generates, and pass through the signal that digital lock-in amplifier 8 detects interested frequency.For example,
The voltage signal directly proportional to the magnetism of sample 1 can be measured by digital lock-in amplifier 8.And measurement result is sent to place
Manage unit 11.In addition, the specific structure of the second magnetic field measuring device 104 is not limited to the above form, other forms can be measured
The mode in the magnetic field that excitation sample 1 generates is equally applicable to the technical solution of the application.
Wherein, signal generator 7 is connect with digital lock-in amplifier 8, so that the signal that signal generator 7 generates passes through all the way
It exchanges constant-flow driver 6 and drives exciter 5, another output to digital lock-in amplifier 8 is used as reference signal.To number
What lock-in amplifier 8 can generate signal generator 7 be used to excite benchmark letter that the signal of sample 1 is enlarged as locking phase
Number.So as to more accurately measure the magnetism of sample 1.
Specifically, processing unit 11 can be configured to execute following operation: while acquiring the output of digital lock-in amplifier 8
The magnetic field signal that signal and gaussmeter 9 export, determines the magnetism change curve relevant to the first magnetic field of jewel, and/or changes
The frequency of signal generator 7, in the case that the first magnetic field of measurement is fixed magnetic field, the magnetism change relevant to stimulating frequency of jewel
Change curve.
To which processing unit 11 can go to obtain the magnetic information of sample 1 in different ways from multiple dimensions.
In addition, refering to what is shown in Fig. 2, exchange constant-flow driver 6, signal generator 7, digital lock-in amplifier 8, gaussmeter 9
And electromagnet power supply can be connect by usb line 12 with computer 11 (i.e. processing unit 11).
Referring to Fig. 3, the present embodiment provides a kind of magnetic methods of measurement jewel, this method comprises:
S302: the first magnetic field is generated around jewel；
S304: exciting the jewel, generates the second magnetic field；
S306: the first magnetic field or the second magnetic field are adjusted, and measures the intensity value in the first magnetic field and the intensity value in the second magnetic field；
And
S308: jewel and are determined according to the characteristic of the intensity value in the first measured magnetic field and the second measured magnetic field
The relevant magnetism in one magnetic field.
Specifically, determining that the operation of relevant to the first magnetic field magnetism of jewel comprises determining that the magnetism of jewel with described the
The curve of one changes of magnetic field.
The operation for determining jewel magnetism relevant to the first magnetic field includes: the feelings being kept fixed in first magnetic field
Under condition, the magnetism change curve relevant to the stimulating frequency of the jewel is excited of the jewel is measured.
Specific measurement method and step are as follows:
1) it will be integrally attached in the head of sample excitation device 5 and be placed among electromagnet the two poles of the earth to observation pearl sample 1
(i.e. the opening of yoke 2).
2) sine wave signal that signal generator 7 generates supplies digital lock-in amplifier 8 as reference signal, all the way all the way
Sample excitation device 5 is driven through exchange constant-flow driver 6；The frequency f and amplitude for changing signal generator 7 can make sample 1 by certain
Frequency and amplitude vibrations, the magnetisable material in sample 1 can produce magnetic dipole radiation, magnetic in the intensity and sample of magnetic dipole radiation
The content of property substance is directly proportional.
3) 1 magnetic dipole radiation signal of sample is input to digital lock-in amplifier after the detection of search coil 3, by processing
The just available voltage signal directly proportional to the magnetism of sample 1.Being compared by the measurement with known magnetic polarization intensity standard specimen can be with
Determine the magnetic strength of test sample 1.
4) magnetic field signal that computer 1 acquires the output signal of digital lock-in amplifier 8 simultaneously and gaussmeter 9 detects is i.e.
Sample magnetism can be achieved with the change curve in magnetic field.
5) it can measure the magnetic variation with stimulating frequency of fixed magnetic field sample 1 by changing the frequency of signal generator 7
Curve.
Below in conjunction with the principle of the present invention, structural block diagram, to the specific embodiment in the embodiment of the present invention carry out into
The description of one step:
The present invention measures the structural block diagram of the magnetic equipment of jewel as shown in Fig. 2, its composition can be divided into following portion
Point:
One, the first magnetic field generating arrangement and detection device, comprising: magnet exciting coil 4, yoke 2, electromagnet power supply 10 and Gauss
Meter 9.Electromagnet power supply control excitation coil of electromagnet electric current is high to make the magnetic field in 2 gap of electromagnet yoke change
The size in magnetic field in this meter real-time measurement yoke gap.
Two, the second magnetic field (i.e. day pearl sample excitation magnetic field) generating means and detection device, comprising: signal generator 7 is handed over
Flow constant-flow driver 6, sample excitation device 5, search coil 3 and digital lock-in amplifier 8.Signal generator can adjust day pearl magnetic
Field excitation frequency uses exchange constant-current drive technology to modulate the stabilization of magnetic field amplitude and frequency during guaranteeing measurement.
Three, magnetoelectricity signal conversion and acquisition device, comprising: data acquisition computer 11.
Four, data acquisition control and data processing software, all equipment connected by usb 12 are soft by computer
Part control can automatically determine the magnetism in day pearl or jewelry ore with day pearl or pearl under the change information or fixed magnetic field in magnetic field
Precious ore magnetism with stimulating frequency change information etc..
Data acquisition control with data processing software is write using Visual Basic language, flow chart such as Fig. 6 institute
Show.Programmed run steps are as follows:
Step 1: program initializes each instrument port and parameter.
Step 2: (mode 1 determines the magnetism of jewel with first changes of magnetic field to selection data acquisition scheme M-H
Curve) or M-f (mode 2, the i.e. magnetic change curve with stimulating frequency of fixed magnetic field sample 1) and magnetic field H frequency f change
Change range.
Step 3: software according to the variation range and rate of change of the magnetic field H and frequency f of setting regulate and control corresponding equipment into
The variation of row magnetic field H and frequency f, digital lock-in amplifier 8 start to measure sample magnetism, and each port values are collected meter by software
Calculation machine.Data point and each instrument state information real-time display are on software interface in data acquisition.
Step 4: data can be carried out after the completion of data acquisition smooth, difference quotient, integral, symmetry data processing and
Some parameters calculate.It can be reserved for data after satisfaction and save or print to file or software interface curve screenshot.
Step 5: replacement sample or change instrument parameter re-measure.
It is specific test process below:
1) sample is placed on electromagnet pole and search coil center.
2) frequency, the amplitude for the sine wave that log-on data acquisition software, selection or adjustment signal generator generate, adjust function
The driving current of rate amplifier, excitation sample press certain frequency and amplitude vibrations.
3) variation range and rate of change of data acquisition scheme M-H or M-f and magnetic field H or frequency f are selected.
4) it clicks START button and starts data acquisition, program can adopt automatically according to the parameter and data acquisition scheme of setting
Collect data.
5) data can be carried out with the processing such as data smoothing, difference quotient, integral and parameter calculating, most after data acquisition
After save as data file.
6) it replaces sample or change parameter repeats step 3 and continues to measure to 5.
The present invention is characterized in that:
1) electromagnet power supply, gaussmeter, digital lock-in amplifier, signal generator, by USB communication interface and calculate
Machine is connected, and the equipment of connection can automatically determine sample magnetism with the variation in magnetic field by computer software control.
2) this method can measure sample with the measurement of comparison of magnetic polarization intensity standard specimen known under identical measuring condition
The magnetic parameters such as magnetic strength and coercivity, saturation magnetization and saturation magnetic field of magnetic components in product；This test method
Sample whole harmless inspection may be implemented without destroying sample.
3) sample excitation device use exchange constant-current drive technology with during guaranteeing measurement sample excitation amplitude and frequency it is steady
It is fixed.
4) it can measure fixed magnetic field sample magnetism with the change curve of stimulating frequency by changing the frequency of signal generator.
5) this detection method is a kind of non-destructive testing, tested sample without being destroyed and sampling, the size of sample only by
Space limitation between electromagnet the two poles of the earth.
In addition, although the present embodiment is illustrated the technical solution of the present embodiment by taking day pearl magnetic field as an example,
He can also be measured the magnetism of jewel by this programme.For example, Fig. 4 is aerolite day pearl unit mass magnetism with changes of magnetic field
Actual measurement profile figure；Fig. 5 is actual measurement profile figure of the agate edge erosion day pearl unit mass magnetism with changes of magnetic field.
Disclosed scheme through the foregoing embodiment generates the second magnetic field by the excitation jewel in the first magnetic field, and surveys
Two magnetic field of flow control can be obtained magnetic characteristic of jewel in the environment of the first magnetic field.To, the present invention can with complete paired samples with
The excitation of different vibration frequencies and sample paramagnetic, diamagnetic and ferromagnetic characteristic measurement and characterization, by with identical measuring condition
The measurement of comparison of lower known magnetic polarization intensity standard specimen can measure the magnetic strength of magnetic components and coercivity, saturation in sample
The magnetic parameters such as the intensity of magnetization and saturation magnetic field.Control of the computer data acquiring processing software in addition to completing system Instrumental equipment
Measurement data is also collected computer simultaneously in real time and carries out handling to obtain various forms of result curves by system.
To achieved the purpose that can science judgement mineral jewel in whether containing micro magnetisable material, realize science
The technical effect for measuring micro magnetic content of material and its parameter of magnetic characteristic in mineral jewel especially aerolite day pearl, solves above-mentioned
Mineral jewel especially aerolite day pearl in micro magnetic content of material and its parameter of magnetic characteristic can not science measurement the problem of.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
In addition, above-mentioned the embodiment of the present application serial number is for illustration only, do not represent the advantages or disadvantages of the embodiments.In the upper of the application
It states in embodiment, all emphasizes particularly on different fields to the description of each embodiment, there is no the part being described in detail in some embodiment, may refer to it
The associated description of his embodiment.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. measuring the magnetic equipment (100) of jewel, which is characterized in that the equipment includes:
First magnetic field generating arrangement (101), for generating the first magnetic field around the jewel；
First magnetic field measuring device (102), for measuring the intensity value in first magnetic field；
Second magnetic field generating arrangement (103) generates the second magnetic field for exciting the jewel；
Second magnetic field measuring device (104), for measuring the characteristic in second magnetic field；And
Processing unit (11), with first magnetic field generating arrangement (101), first magnetic field measuring device (102), described
Two magnetic field generating arrangements (104) and second magnetic field measuring device (104) connection generate dress for adjusting first magnetic field
Set (101) and second magnetic field generating arrangement (103) and according to the intensity value in the first measured magnetic field and measured
The characteristic in the second magnetic field determines jewel magnetism relevant to first magnetic field.
2. equipment according to claim 1, which is characterized in that first magnetic field generating arrangement (101) includes:
Yoke (2), the yoke (2) includes opening, for being inserted into the jewel；
Magnet exciting coil (4), the magnet exciting coil (4) wind the yoke (2) and are arranged；And
Electromagnet power supply (10) is connect with the magnet exciting coil (4), and Xiang Suoshu magnet exciting coil (4) provides electric current, and
The processing unit (11) connect with the electromagnet power supply (10), to control the electromagnet power supply (10) Xiang Suoshu
The electric current that magnet exciting coil (4) provides.
3. equipment according to claim 2, which is characterized in that first magnetic field measuring device (102) includes gaussmeter
(9), the probe of the gaussmeter (9) is set to the opening of the yoke (2), and the processing unit (11) and institute
State gaussmeter (9) connection.
4. equipment according to claim 3, which is characterized in that second magnetic field generating arrangement (103) includes:
Exciter (5), for exciting the jewel；
It exchanges constant-flow driver (6), for driving the exciter (5)；And
Signal generator (7), for adjusting the driving frequency of exchange constant-flow driver (6), wherein
The exchange constant-flow driver (6) and the signal generator (7) are connect with the processing unit (11).
5. equipment according to claim 4, which is characterized in that second magnetic field measuring device (104) includes:
Search coil (3), is arranged at the opening；
Digital lock-in amplifier (8) is connect with the search coil (3), directly proportional to the magnetism of the jewel for measuring
Voltage signal, wherein
The processing unit (11) connect with the digital lock-in amplifier (8).
6. equipment according to claim 5, which is characterized in that the signal generator (7) and the digital servo-control amplify
Device (8) connection, so that the signal that the signal generator (7) generates is all the way through described in the exchange constant-flow driver (6) driving
Exciter (5), another output to the digital lock-in amplifier (8) are used as reference signal.
7. equipment according to claim 6, which is characterized in that the processing unit (11) can be configured to execute following behaviour
Make:
The output signal of the digital lock-in amplifier (8) and the magnetic field signal of the gaussmeter (9) output are acquired simultaneously, are determined
The magnetism change curve relevant to first magnetic field of the jewel, and/or
Change the frequency of the signal generator (7), in the case where measuring first magnetic field as fixed magnetic field, the jewel
Magnetic change curve relevant to stimulating frequency.
8. measuring the magnetic method of jewel, which is characterized in that the described method includes:
The first magnetic field is generated around the jewel；
The jewel is excited, the second magnetic field is generated；
Adjust first magnetic field or second magnetic field, and measure first magnetic field intensity value and second magnetic field
Intensity value；And
The jewel and described the are determined according to the characteristic of the intensity value in the first measured magnetic field and the second measured magnetic field
The relevant magnetism in one magnetic field.
9. according to the method described in claim 8, it is characterized in that, determining jewel magnetism relevant to first magnetic field
Operation comprise determining that the magnetic curve with first changes of magnetic field of the jewel.
10. according to the method described in claim 8, it is characterized in that, determining jewel magnetic relevant to first magnetic field
Property operation include: to measure the magnetism of the jewel in the case where first magnetic field is kept fixed and excite the jewel
The relevant change curve of stimulating frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| EP0726458A2 (en) * | 1995-01-13 | 1996-08-14 | Bruker Analytische Messtechnik GmbH | Method and apparatus for measuring samples and for localizing a first substance within a surrounding second substance by means of nuclear magnetic resonance |
| US5559436A (en) * | 1994-11-21 | 1996-09-24 | Marion Matthews | Method and apparatus for distinguishing synthetic diamonds from natural diamonds |
| WO2011004244A1 (en) * | 2009-07-06 | 2011-01-13 | University Of Cape Town | The genesis and identification of a diamond |
| CN105487027A (en) * | 2016-01-04 | 2016-04-13 | 中国科学院物理研究所 | Three-dimensional vector magnetic moment measuring instrument |
| CN105866235A (en) * | 2016-03-28 | 2016-08-17 | 王利晨 | Jewel identification apparatus and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5559436A (en) * | 1994-11-21 | 1996-09-24 | Marion Matthews | Method and apparatus for distinguishing synthetic diamonds from natural diamonds |
| EP0726458A2 (en) * | 1995-01-13 | 1996-08-14 | Bruker Analytische Messtechnik GmbH | Method and apparatus for measuring samples and for localizing a first substance within a surrounding second substance by means of nuclear magnetic resonance |
| WO2011004244A1 (en) * | 2009-07-06 | 2011-01-13 | University Of Cape Town | The genesis and identification of a diamond |
| CN105487027A (en) * | 2016-01-04 | 2016-04-13 | 中国科学院物理研究所 | Three-dimensional vector magnetic moment measuring instrument |
| CN105866235A (en) * | 2016-03-28 | 2016-08-17 | 王利晨 | Jewel identification apparatus and method thereof |
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