CN108180819A - A kind of ice layer thickness measuring device based on magnetoelastic material - Google Patents
A kind of ice layer thickness measuring device based on magnetoelastic material Download PDFInfo
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- CN108180819A CN108180819A CN201711402168.5A CN201711402168A CN108180819A CN 108180819 A CN108180819 A CN 108180819A CN 201711402168 A CN201711402168 A CN 201711402168A CN 108180819 A CN108180819 A CN 108180819A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
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Abstract
The present invention relates to a kind of ice layer thickness measuring devices, concretely relate to a kind of ice layer thickness measuring device based on magnetoelastic material, belong to automatic measurement technique field, solve existing contact type ice thickness measuring device there are complicated or measurement error it is big the problems such as.The device, including sensing unit and measure-controlling unit；The sensing unit includes annular cylindrical case, magnetoelastic material, magnetoelastic material stent, AC coil, DC coil, chip select circuit and coil brace；The magnetoelastic material includes multiple magnetic vibration units connected in sequence；The measure-controlling unit includes impedance measuring circuit, DC bias circuit, microcontroller, serial port circuit and power circuit.The present invention utilizes the magnetoelastic material resonance characteristics difference in air, ice and water respectively, can clearly determine the position of the upper and lower interface of ice sheet, so as to accurately calculate the thickness of ice sheet.The device has many advantages, such as reliable and stable, and it is accurate to measure.
Description
Technical field
The present invention relates to a kind of ice layer thickness measuring devices, concretely relate to a kind of ice sheet based on magnetoelastic material
Measurer for thickness belongs to automatic measurement technique field.
Background technology
In fields such as weather forecast, ice flood prevention and facility structure health monitorings, the situation of change of ice layer thickness is one
Need the important environmental parameters measured.In order to measure the thickness of ice sheet, people have to drilling of making a hole in the ice, and ruler is utilized to measure ice sheet
Thickness.Although the method for this manual measurement measures accurate, time-consuming and laborious, dangerous height, it is impossible to continuously, monitor in real time
The variation of ice layer thickness.
Later, some contact type ice layer thickness measuring techniques and device occurred in succession.Chinese patent
（201210139060.2）A kind of dual system ice layer thickness measuring device is disclosed, using can two groups of spies that can move up and down
Head clamps ice sheet, and the thickness of ice sheet is calculated by the mobile distance of two probes.Although this method high certainty of measurement, structure
Complexity, range is small, is difficult to install and safeguard.Chinese patent（200410012164.2）And Chinese patent（200510012794.4）
Conductance type and condenser type ice layer thickness sensor are individually disclosed, by due to resistance caused by air, ice and water and capacitance
Otherness determines the position of the upper and lower interface of ice sheet, so as to calculate the thickness of ice sheet.But due to the conductivity of air and ice
Very close with the electrology characteristics such as dielectric constant, both methods cannot all be accurately determined the position at the upper interface of ice sheet, so as to
The thickness of ice sheet can not be accurately measured.
Invention content
The technical problems to be solved by the invention are for contact type ice thickness measuring device or sensing in background technology
Device there are the defects of and deficiency, provide a kind of ice layer thickness measuring device based on magnetoelastic material, utilize magnetoelastic material
The position of the upper and lower interface of ice sheet can be clearly distinguished in the difference of resonance characteristics in air, ice and water, so as to accurately
Calculate the thickness of ice sheet.
Realization that the present invention adopts the following technical solutions：A kind of ice layer thickness measuring device based on magnetoelastic material,
Including sensing unit and measure-controlling unit；
The sensing unit include annular cylindrical case, magnetoelastic material, magnetoelastic material stent, AC coil, DC coil,
Chip select circuit and coil brace；Annular cylindrical case includes the outer shroud of tubular and the inner ring for the tubular being set in inside outer shroud；
There is gap between outer shroud and inner ring and inside and outside czermak space is closed at two ports；The both ends of inner ring are then hatch frame；Institute
It states magnetoelastic material and includes multiple magnetic vibration units connected in sequence；Magnetoelastic material is fixed on by magnetoelastic material stent
At inner ring center；AC coil, DC coil and chip select circuit are fixed on by coil brace in the gap of outer shroud and inner ring；It hands over
Streamline circle and DC coil are multiple, and alternating is wrapped on coil brace, is mutually independent.AC coil is close to inner ring
Outer wall is set, and DC coil is close to the inner wall setting of outer shroud.Each position of AC coil and each magnetic of magnetoelastic material
Property vibration unit it is corresponding, need respectively by corresponding magnetic vibration unit surround wherein, be located at corresponding magnetic vibration unit
The middle of AC coil.The junction of two neighboring magnetic vibration unit is correspondingly provided with a DC coil, positioned at both ends
The one end not connect in magnetic vibration unit with other magnetic vibration units is also correspondingly provided with a DC coil respectively；
Chip select circuit includes multiple choosings and switchs, and is connected between piece choosing switch by data/address bus.The one of each DC coil
A pin ground connection, another pin are connected with the input terminal of a piece choosing switch.Each pin of each AC coil respectively with
The input terminal of one piece choosing switch is connected.All output terminals of piece choosing switch for being connected to DC coil all link together, shape
Into a direct current common end；The output terminal of the piece choosing switch of all first pins for being connected to AC coil is all connected to one
It rises, forms an exchange common end；The output terminal of the piece choosing switch of all second pins for being connected to AC coil all connects
Together, another exchange common end is formed；
Measure-controlling unit includes impedance measuring circuit, DC bias circuit, microcontroller, serial port circuit and power circuit；Impedance
The signal excitation output terminal of measuring circuit exchanges common end with one and is connected, the impedance input of impedance measuring circuit with it is another
The connection of a exchange common end, is attached between impedance measuring circuit and microcontroller by data/address bus；DC bias circuit
Output terminal is connected with direct current common end, the input terminal of DC bias circuit and microcontroller pin with D/A outputs
Connection；Chip select circuit and microcontroller are attached by data/address bus；In the input terminal and output terminal and microcontroller of serial port circuit
Serial communication interface be connected；Power circuit is respectively to impedance measuring circuit, DC bias circuit, microcontroller, serial port circuit
It powers with chip select circuit.
The principle of the present invention is as follows：Magnetoelastic material can occur flexible common under the action of alternating current magnetic field and D.C. magnetic field
It shakes, the impedance spectrum of AC coil is caused to change, form formant.It is common due to the influence of the medium around magnetoelastic material
Summit of shaking changes therewith.Therefore, magnetoelastic material is individually positioned in air, ice and water, and in identical magnetic field ring
The impedance spectrum of coil is measured in border, the formant in three kinds of different mediums there can be apparent difference, as shown in Figure 4.
Compared to the formant in three kinds of media, the height of the formant in air is the largest.Due to magnetoelastic material in water by
To frictional force it is bigger than in air, the height of the formant in water can accordingly reduce.Since magnetoelastic material can not be sent out in ice
Formant, would not occur in ice in raw flexible resonance.
Therefore, if by the device of the invention positioned vertical in the hole being drilled in ice face to be measured in advance, the water of subglacial
Principle of the meeting based on linker enters in the inner ring of device, and be frozen into ice again at extraneous temperature.At this moment, magnetoelasticity in inner ring
The medium of surrounding materials is air, ice and water respectively according to sequence from top to bottom（As shown in Figure 1）.Microcontroller exists by comparing
The resonance peak amplitude size of the impedance spectrum of the AC coil of different location, it is possible to judge the position of the upper and lower interface of ice sheet, and
The position of each AC coil is previously known, so as to calculate the thickness of ice sheet.
Further, the magnetoelastic material is the entirety formed by the cutting of iron-based amorphous alloy ribbon material, including shape
Magnetic vibration unit, connection adjacent magnetic vibration unit and width that shape is rectangle are less than the vibration unit of magnetic vibration unit
Linkage section and positioned at head and the tail two magnetic vibration unit outboard ends extended segment；It is single that the magnetoelastic material stent is located at vibration
Being positioned to magnetoelastic material at first linkage section and extended segment；Magnetoelastic material stent on the basis of mechanical strength is met most
Limits retain more void regions, can be ensured that external water, air full of inner ring, are measured to realize in this way.
Compared with prior art, the beneficial effects of the invention are as follows reliability height, maintenance easy to install can clearly distinguish ice sheet
The position of upper and lower interface, so as to accurately calculate the thickness of ice sheet.
Description of the drawings
Fig. 1 is the sectional view and measure-controlling unit of the sensing unit of the ice layer thickness measuring device based on magnetoelastic material
Circuit block diagram.
Fig. 2 is the schematic shapes of the magnetoelastic material after cutting by ferrum-based amorphous alloy strip.
Fig. 3 is the circuit connection diagram of the ice layer thickness measuring device based on magnetoelastic material.
Fig. 4 is the formant of the magnetoelastic material measured in air, ice and water.
Fig. 5 is the partial enlargement structural representation of Fig. 1.
1- sensing units, 2- measure-controlling units, 3- annular cylindrical cases, 4- magnetoelastic materials, 5- magnetoelastic material branch
Frame, 6- AC coils, 7- DC coils, 8- chip select circuits, 9- coil braces, 10- impedance measuring circuits, 11- direct current biasings electricity
Road, 12- microcontrollers, 13- serial port circuits, 14- power circuits, 15- air, 16- ice sheets, 17- subglacial waters, 18- pieces choosing switch,
31- outer shrouds, 32- inner ring, 41- magnetic vibration units, 42- linkage sections, 43- extended segments.
Specific embodiment
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
The present invention is made of sensing unit 1 and measure-controlling unit 2, as shown in Figure 1.
Sensing unit 1 includes annular cylindrical case 3, magnetoelastic material 4, magnetoelastic material stent 5, AC coil 6, direct current
Coil 7, chip select circuit 8 and coil brace 9.
Measure-controlling unit 2 includes impedance measuring circuit 10, DC bias circuit 11, microcontroller 12,13 and of serial port circuit
Power circuit 14.
Annular cylindrical case 3 is the shell of sensing unit 1, for fixing magnetoelastic material stent 5 and coil brace 9,
It is characterized in the long cylinder of a concentric ring-shaped.The inner hollow of the inner ring 32 of annular cylindrical case 3, and with extraneous unicom, it is but outer
Gap two-port between ring 31 and inner ring 32 is closing.Magnetoelastic material stent 5 is fixed in the interior of annular cylindrical case 3
The inside of ring 32.Coil brace 9 is fixed in the gap between the outer shroud 31 of annular cylindrical case 1 and inner ring 32.
Annular cylindrical case 3, magnetoelastic material stent 5 and coil brace 9 are all made of low-temperature resistant plastic material, preferably resistance to
Low-temperature polyethylene（PE）Material.Magnetoelastic material stent 5 is used to fix magnetoelastic material 4.Coil brace 9 is used to fix AC line
Circle 6, DC coil 7 and chip select circuit 8.
Magnetoelastic material 4 is to cut the entirety formed, preferably METGLAS by iron-based amorphous alloy ribbon material@
2826mbMB bands.Fig. 2 illustrates a kind of possible shape.Wherein, each big rectangle is the region for vibrating sensing
（Magnetic vibration unit 41）.The region at both ends（Extended segment 43）Region between two neighboring big rectangle（Linkage section 42）
It is the region that magnetoelastic material 4 is fixed for magnetoelastic material stent 5.The width of linkage section 42 is less than magnetic vibration unit 41
Width.The width of magnetic vibration unit 41 is less than the width of extended segment 43.For example, the size of magnetic vibration unit 41 may be designed as
20mm（Length）×5mm（Width）×30μm（Thickness）, the size of linkage section 42 may be designed as 4mm × 2mm × 30 μm, extended segment
43 size may be designed as 10 mm × 10mm × 30 μm.Since magnetoelastic material 4 is in contact with external environment, magnetoelastic material 4
Surface can utilize epoxy resin coat, formed one layer of anti oxidation layer, so as to prevent magnetoelastic material 4 by oxidation corrosion.
Magnetoelastic material 4 is fixed on by magnetoelastic material stent 5 by fixed vibration unit linkage section 42 and extended segment 43
At the center of the inner ring 32 of annular cylindrical case 3.In use, enter the inner ring of annular cylindrical case 3 for the ease of subglacial water 17
32, magnetoelastic material stent 5 retains more void regions to greatest extent on the basis of mechanical strength is met.
AC coil 6 and DC coil 7 are the multiple independent single-layer solenoids and multilayer wire by enameled wire coiling respectively
Circle, alternating are wrapped on coil brace 9.AC coil 6 is close to the outer wall of the inner ring of annular cylindrical case 3.DC coil 7 is close
The inner wall of the outer shroud of annular cylindrical case 3.Therefore, the radius of AC coil 6 is less than the radius of DC coil 7.Each AC line
The position of circle 6 is corresponding with each magnetic vibration unit 41 of magnetoelastic material 4, needs respectively by corresponding magnetic vibration unit 41
It surrounds wherein, corresponding magnetic vibration unit 41 is made to be located at the middle of AC coil 6.The position of each DC coil 7 and magnetic
The linkage section 42 of elastic material 4 and extended segment 43 are corresponding, make the both sides of each magnetic vibration unit 41 respectively there are one AC line
Circle 7.
Chip select circuit 8 is used to gating or disconnecting AC coil 6 and DC coil 7.Chip select circuit 8 can utilize ANALOG
The Serial Control switch chip ADGS1412 of DEVICES companies is realized.ADGS1412 contains four independent single-pole single-throw(SPSTs and opens
It closes, that is, contains four piece choosing switches 18.The pin ground connection of each DC coil 7, another pin and a piece
The input terminal of choosing switch 18 is connected.Input terminal of each pin of each AC coil 6 respectively with a piece choosing switch 18 is connected.
All output terminals of piece choosing switch 18 for being connected to DC coil 7 all link together, and form a direct current common end.All companies
Then the output terminal of the piece choosing switch 18 of first pin of AC coil 6 all links together, and forms an exchange common end.
The output terminal of the piece choosing switch 18 of all second pins for being connected to AC coil 6 all links together, and forms another friendship
Flow common end.Assuming that AC coil 6 has n-1 in sensing unit 1, DC coil 7 has n, the piece choosing that chip select circuit 8 should include
The quantity of switch 18 is 3n-2, as shown in Figure 3.ADGS1412 supports the control of SPI data/address bus, thus multiple ADGS1412 it
Between connected by spi bus.
Impedance measuring circuit 10 is used to encourage AC coil 6, and measure the impedance of AC coil 6.Impedance measuring circuit 10
It is built using the impedance transformation chip AD5933 of ANALOG DEVICES companies.AD5933 contains signal generator and impedance
Converter.Wherein, signal generator, which need to generate, meets the frequency sweep exchange letter that the magnetic vibration unit 41 of magnetoelastic material 4 resonates
Number.The output terminal of signal generator, that is, the signal excitation output terminal of impedance measuring circuit 10, common end phase is exchanged with one
Connection.The impedance value of AC coil 6 can be converted to voltage value by impedance transducer.The input terminal of impedance transducer, that is, hinder
The impedance input of anti-measuring circuit 10 exchanges common end with another and is connected.DC bias circuit 11 is used to pass through direct current
7 magnetropism vibration unit 41 of coil provides DC bias magnetic field.DC bias circuit 11 can utilize the two-way of MAXIM companies micro-
The power amplification circuit and voltage follower that consumed power operational amplifier MAX4092 is built are realized.The input terminal of power amplifier is just
It is the input terminal of DC bias circuit 11.The output terminal of power amplifier is connected with the input terminal of voltage follower.Voltage follow
The output terminal of device is exactly the output terminal of DC bias circuit 11, is connected with direct current common end.
Control centre of the microcontroller 12 as whole device needs inclined to chip select circuit 8, impedance measuring circuit 10, direct current
Circuits 11 and serial port circuit 13 are controlled or are exchanged data.Therefore, microcontroller 12 need to have and chip select circuit 8, impedance
The communication interface that measuring circuit 10 and serial port circuit 13 communicate, should also have the D/A converter of driving DC bias circuit 11.It is single
The microcontroller CC1310 that Texas Instruments can be used in piece machine 12 is not only integrated with 48MHz Cortex inside it@- M3 micro-controls
The RF transceivers of device processed, D/A converter and super low-power consumption support serial communication interface, I2C and SPI communication interfaces.CC1310 with
It is connected between the chip select circuit 8 built by ADGS1412 by SPI data/address bus.CC1310 is surveyed with the impedance built by AD5933
It is connected between amount circuit 10 by I2C data/address bus.There is the defeated of pin and the DC bias circuit 11 of D/A outputs on CC1310
Enter end to be connected.
Serial port circuit 13 is used for external communication module, remote data transmission is realized, preferably by the RS- of Texas Instruments
232 drivings/receiver MAX3232 is built.The input terminal of serial port circuit 13（Receiving terminal）And output terminal（Transmitting terminal）With microcontroller
12 serial communication interface links together.
Power circuit 14 is used for as impedance measuring circuit 10, DC bias circuit 11, the microcontroller in measure-controlling unit 2
12nd, the chip select circuit 8 in serial port circuit 13 and sensing unit 1 is powered, preferably by power conversion chip LM2575 and LM1117
To realize voltage conversion, output 5V and 3.3V.
Fig. 5 is the partial enlargement structural representation of device of the present invention, and magnetic vibration unit 41 is from top to bottom located at interior
At the center of ring 32.AC coil 6, DC coil 7 and chip select circuit 8 are from top to bottom sequentially arranged in outer shroud 31 and inner ring 32
Gap location.But AC coil 6 is arranged close to 32 outer wall of inner ring, and DC coil 7 is arranged close to 31 inner wall of outer shroud
The length of sensing unit 1 need to be designed according to the maximum value of the thickness of ice sheet 16 to be measured, suitably be increased or decreased
Annular cylindrical case 3, magnetoelastic material stent 5, coil brace 9 and the length of magnetoelastic material 4 and AC coil 6, direct current
The quantity of coil 7 and chip select circuit 8, it is ensured that sensing unit 1 is distributed in air 15, ice sheet 16 and subglacial water 17.
The ice layer thickness that the ice layer thickness measuring device of the present invention is primarily adapted for use in offshore sea ice, river ice or lake ice is automatic
Change and measure.
A specific embodiment is listed below, technical scheme of the present invention is further described.
The embodiment is that the ice layer thickness in lake is measured using the device：
Before measurement, sensing unit 1 need to put in the ice cave chiseled in advance, and pass through outside support perpendicular to the ice face in lake（Such as
Wood or scaffold etc.）It is fixed in ice face.The length of sensing unit 1 requires more than the thickness of ice sheet 16 to be measured.Subglacial
Water 17 can be entered due to the principle of linker in the inner ring 32 of annular cylindrical case 3.Under the action of ambient temperature, inner ring
Water in 32 can become ice.In this way, magnetoelastic material 4 in inner ring 32 according to sequence from top to down respectively by air 15,
Ice sheet 16 and subglacial water 17 are surrounded.
During measurement, microcontroller 12 controls chip select circuit 8 to gate magnetic to be measured successively from the top down by data/address bus first
Property 41 corresponding DC coil 7 of vibration unit and AC coil 6, disconnect other pieces choosing switch 18 of chip select circuit 8.For example,
When being measured to first magnetic vibration unit 41, microcontroller 12 need to control 8 close out sheet of chip select circuit choosing switch 18（Scheming
Serial number 1,2,3 and 4 in 3）, and disconnect other pieces choosing switch 18.Then, microcontroller 12 is defeated by DC bias circuit 11
Go out DC offset voltage, DC coil 7 is made to generate biasing magnetostatic field.Microcontroller 12 is by data/address bus to impedance measuring circuit 10
The progressive value of initial frequency, frequency of pumping signal is set, and progressive number makes impedance measuring circuit 10 be sequentially output frequency sweep alternating current
Pressure makes AC coil 6 generate alternating magnetic field.Meanwhile impedance measuring circuit 10 measures the impedance of AC coil 6, and is converted to number
Word amount.The impedance value that microcontroller 12 is read back at different frequencies by data/address bus from impedance measuring circuit 10, and take out maximum
Value.The peak value of the maximum value i.e. Fig. 4 middle impedances peak.In air and water, magnetic vibration unit 41 is in alternating magnetic field and partially
It puts and resonates, and cause impedance peak under the action of magnetostatic field, impedance maximum value is not zero.But in ice, magnetic vibration unit 41 exists
It can not resonate under the action of ice, also just there is no impedance peak, impedance maximum value is zero.Impedance maximum value is microcontroller 12 by comparing
No is zero, it is possible to determine the position of the upper and lower interface of ice sheet, and the position for passing through upper and lower interface calculates the thickness of ice sheet.
Claims (3)
1. a kind of ice layer thickness measuring device based on magnetoelastic material, which is characterized in that including sensing unit（1）It is controlled with measuring
Unit processed（2）；
The sensing unit（1）Including annular cylindrical case（3）, magnetoelastic material（4）, magnetoelastic material stent（5）, AC line
Circle（6）, DC coil（7）, chip select circuit（8）And coil brace（9）；Annular cylindrical case（3）Outer shroud including tubular（31）
And it is set in outer shroud（31）The inner ring of internal tubular（32）；Outer shroud（31）With inner ring（32）Between have gap and inner and outer ring
It is closed at two ports in gap；Inner ring（32）Both ends then be hatch frame；The magnetoelastic material（4）Including it is multiple sequentially
The magnetic vibration unit of connection（41）；Magnetoelastic material（4）Pass through magnetoelastic material stent（5）It is fixed on inner ring（32）Center
Place；AC coil（6）, DC coil（7）And chip select circuit（8）Pass through coil brace（9）It is fixed on outer shroud（31）With inner ring
（32）Gap in；The AC coil（6）And DC coil（7）It is multiple, alternating is wrapped in coil brace（9）On, each other
Independently of each other；The AC coil（6）It is close to inner ring（32）Outer wall setting, DC coil（7）It is close to outer shroud（31）'s
Inner wall is set；Each AC coil（6）Position and magnetoelastic material（4）Each magnetic vibration unit（41）It is corresponding, it needs
Respectively by corresponding magnetic vibration unit（41）It surrounds wherein, makes corresponding magnetic vibration unit（41）Positioned at AC coil（6）
Middle；Two neighboring magnetic vibration unit（41）Junction be correspondingly provided with a DC coil（7）, the magnetic positioned at both ends
Property vibration unit（41）In not with other magnetic vibration units（41）One end of connection is also correspondingly provided with a DC coil respectively
（7）；
The chip select circuit（8）Including multiple choosing switches（18）, piece choosing switch（18）Between be connected by data/address bus；Often
A DC coil（7）Pin ground connection, another pin and piece choosing switch（18）Input terminal be connected；Each exchange
Coil（6）Each pin switched respectively with the choosing of piece（18）Input terminal be connected；It is all to be connected to DC coil（7）Piece
Choosing switch（18）Output terminal all link together, formed a direct current common end；It is all to be connected to AC coil（6）First
The piece choosing switch of a pin（18）Output terminal all link together, formed one exchange common end；It is all to be connected to AC line
Circle（6）Second pin piece choosing switch（18）Output terminal all link together, formed another exchange common end；
Measure-controlling unit（2）Including impedance measuring circuit（10）, DC bias circuit（11）, microcontroller（12）, serial port circuit
（13）And power circuit（14）；Impedance measuring circuit（10）Signal excitation output terminal exchange common end with one and be connected, resistance
Anti- measuring circuit（10）Impedance input with another exchange common end connect, impedance measuring circuit（10）With microcontroller（12）
Between connected by data/address bus；DC bias circuit（11）Output terminal be connected with direct current common end, DC bias circuit
（11）Input terminal and microcontroller（12）One have D/A output pin connection；Chip select circuit（8）And microcontroller（12）It is logical
Data/address bus is crossed to be attached；Serial port circuit（13）Input terminal and output terminal and microcontroller（12）In serial communication interface phase
Connection；Power circuit（14）Impedance measuring circuit is given respectively（10）, DC bias circuit（11）, microcontroller（12）, serial port circuit
（13）And chip select circuit（8）Power supply.
A kind of 2. ice layer thickness measuring device based on magnetoelastic material as described in claim 1, which is characterized in that the magnetic
Elastic material（4）It is that the entirety formed, the magnetic vibration being rectangle including shape are cut by iron-based amorphous alloy ribbon material
Unit（41）, connection adjacent magnetic vibration unit（41）And width is less than magnetic vibration unit（41）Vibration unit linkage section
（42）And positioned at two magnetic vibration units of head and the tail（41）The extended segment of outboard end（43）；The magnetoelastic material stent（5）
Positioned at vibration unit linkage section（42）And extended segment（43）Place, to magnetoelastic material（4）It is fixed；Magnetoelastic material stent
（5）Retain more void regions to greatest extent on the basis of mechanical strength is met.
A kind of 3. ice layer thickness measuring device based on magnetoelastic material as claimed in claim 1 or 2, which is characterized in that institute
State annular cylindrical case（3）, magnetoelastic material stent（5）And coil brace（9）It is made of low-temperature resistant plastic material.
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| CN109141210A (en) * | 2018-09-27 | 2019-01-04 | 山东大学 | A kind of semiconductor pressure resistance icing detector and working method |
| CN110230975A (en) * | 2019-06-20 | 2019-09-13 | 武汉钢铁有限公司 | A kind of steel slag thickness measuring device |
| CN117870506A (en) * | 2024-03-12 | 2024-04-12 | 泰安市质量技术检验检测研究院(泰安市特种设备检验研究院) | Road surface thickness detection device that highway engineering was used |
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| CN109141210A (en) * | 2018-09-27 | 2019-01-04 | 山东大学 | A kind of semiconductor pressure resistance icing detector and working method |
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| CN110230975B (en) * | 2019-06-20 | 2021-01-12 | 武汉钢铁有限公司 | Steel slag layer thickness measuring device |
| CN117870506A (en) * | 2024-03-12 | 2024-04-12 | 泰安市质量技术检验检测研究院(泰安市特种设备检验研究院) | Road surface thickness detection device that highway engineering was used |
| CN117870506B (en) * | 2024-03-12 | 2024-05-14 | 泰安市质量技术检验检测研究院(泰安市特种设备检验研究院) | Road surface thickness detection device that highway engineering was used |
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