CN108827347A - A kind of magnetoelectric sensor - Google Patents
A kind of magnetoelectric sensor Download PDFInfo
- Publication number
- CN108827347A CN108827347A CN201810275672.1A CN201810275672A CN108827347A CN 108827347 A CN108827347 A CN 108827347A CN 201810275672 A CN201810275672 A CN 201810275672A CN 108827347 A CN108827347 A CN 108827347A
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- CN
- China
- Prior art keywords
- magnetoelectric
- layer
- magnetostrictive
- piezoelectric layer
- magnetic field
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- 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.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The invention discloses a kind of magnetoelectric sensors, the magnetoelectric transducer ontology being combined including two layers of magnetostrictive layer and the piezoelectric layer being arranged between magnetostrictive layer, the excitation that magnetostrictive layer is changed by external magnetic field, magnetostrictive effect can be generated, and deformation occurs, and deformation is transmitted to piezoelectric layer, piezoelectric layer is set to generate piezoelectric effect, to which the changes of magnetic field that electric current to be measured generates is converted to voltage signal, provide detection information, current carrying conductor passes through among magnet ring, alternating current generates alternating magnetic field, voltage signal occurs between extraction wire；Product of the present invention is easily installed, is convenient for safeguarding, easy to use, and measurement range is wide, and measurement accuracy is high, high sensitivity, good reliability.
Description
Technical field
The present invention relates to magnetoelectricity field, in particular to a kind of magnetoelectric sensors.
Background technique
Magnetoelectric sensor is the induced potential being converted into the movement velocity of input in coil using electromagnetic induction principle
Output.The mechanical energy of testee is directly converted into electric signal output by it, and it is a kind of typical case that work, which does not need additional power source,
Active sensor.Since this sensor output power is larger, thus significantly simplify the secondary meter circuit of adapted.Magnetic
Electric-type sensor is sometimes referred to as electrodynamic type or inductosyn, it is only suitable for carrying out dynamic measurement.Due to it have it is biggish
Output power, therefore adapted circuit is simpler；Zero-bit and performance are stablized；Existing magnetoelectric sensor is used in low current neck mostly
Domain, therefore there are some inconvenience in actual use.
Summary of the invention
In order to solve the above technical problems, technical solution provided by the invention is：A kind of magnetoelectric sensor, including two layers of magnetic
The magnetoelectric transducer ontology for causing stretchable layer and the piezoelectric layer being arranged between magnetostrictive layer to be combined.
As an improvement, the magnetoelectric transducer ontology is externally provided with magnet ring, described magnet ring one end is equipped with notch, and the magnetoelectricity passes
Sensor both ends are closely connect by permanent magnet piece with magnet ring indentation, there.
As an improvement, the complex method between the magnetostrictive layer and piezoelectric layer is to be glued using epoxide resin material
It connects.
As an improvement, the magnetostrictive layer is rare earth ultra-magnetostriction material.
As an improvement, the piezoelectric layer is PZT piezoelectric ceramic piece.
As an improvement, the magnetoelectric transducer upper and lower ends are equipped with extraction wire.
The principle of the present invention is：The excitation that magnetostrictive layer is changed by external magnetic field can generate magnetostrictive effect
Deformation, and deformation is transmitted to piezoelectric layer, so that piezoelectric layer is generated piezoelectric effect, so that the changes of magnetic field that electric current to be measured is generated turns
Formation voltage signal provides detection information, and current carrying conductor passes through among magnet ring, and alternating current generates alternating magnetic field, and extraction is led
Occurs voltage signal between line；Product of the present invention is easily installed, is convenient for safeguarding, easy to use, and measurement range is wide, measurement accuracy
Height, high sensitivity, good reliability.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of magnetoelectric sensor magnetoelectric transducer ontology of the present invention.
Fig. 2 is a kind of structural schematic diagram of magnetoelectric sensor magnet ring of the present invention.
Fig. 3 is a kind of structural schematic diagram of magnetoelectric sensor entirety of the present invention.
Specific embodiment
In conjunction with attached drawing, a kind of magnetoelectric sensor, including two layers of magnetostrictive layer 1.1 and setting are in magnetostrictive layer 1.1
Between the magnetoelectric transducer ontology 1 that is combined of piezoelectric layer 1.2.
As the present embodiment preferred embodiment, the magnetoelectric transducer ontology is externally provided with magnet ring 3, the magnet ring 3
One end is equipped with notch 4, and the magnetoelectric transducer both ends at permanent magnet piece 5 and magnet ring notch 4 by closely connecting.
As the present embodiment preferred embodiment, the complex method between the magnetostrictive layer 1 and piezoelectric layer 2 is
It is bonded using epoxide resin material.
As the present embodiment preferred embodiment, the magnetostrictive layer 1 is rare earth ultra-magnetostriction material.
As the present embodiment preferred embodiment, the piezoelectric layer 2 is PZT piezoelectric ceramic piece.
As the present embodiment preferred embodiment, the magnetoelectric transducer upper and lower ends are equipped with extraction wire 2.
The excitation that magnetostrictive layer 1 is changed by external magnetic field, generating magnetostrictive effect, deformation occurs, and deformation is passed
It is delivered to piezoelectric layer 2, piezoelectric layer 2 is made to generate piezoelectric effect, so that the changes of magnetic field that electric current to be measured generates is converted to voltage signal,
Detection information is provided, current carrying conductor passes through among magnet ring 3, and alternating current generates alternating magnetic field, electricity occurs between extraction wire 2
Press signal；Product of the present invention is easily installed, is convenient for safeguarding, easy to use, and measurement range is wide, and measurement accuracy is high, and high sensitivity can
It is good by property.
The present invention and its embodiments have been described above, this description is no restricted, shown in the drawings
Only one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (6)
1. a kind of magnetoelectric sensor, it is characterised in that：Including two layers of magnetostrictive layer and it is arranged between magnetostrictive layer
The magnetoelectric transducer ontology that piezoelectric layer is combined.
2. a kind of magnetoelectric sensor according to claim 1, it is characterised in that：The magnetoelectric transducer ontology is externally provided with
Magnet ring, described magnet ring one end are equipped with notch, and the magnetoelectric transducer both ends are closely connect by permanent magnet piece with magnet ring indentation, there.
3. a kind of magnetoelectric sensor according to claim 1, it is characterised in that：The magnetostrictive layer and piezoelectric layer it
Between complex method be bonded using epoxide resin material.
4. a kind of magnetoelectric sensor according to claim 1, it is characterised in that：The magnetostrictive layer is rare-earth super-magnetic
Cause telescopic material.
5. a kind of magnetoelectric sensor according to claim 1, it is characterised in that：The piezoelectric layer is PZT piezoelectric ceramics
Piece.
6. a kind of magnetoelectric sensor according to claim 1, it is characterised in that：The magnetoelectric transducer upper and lower ends are set
There is extraction wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275672.1A CN108827347A (en) | 2018-03-30 | 2018-03-30 | A kind of magnetoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275672.1A CN108827347A (en) | 2018-03-30 | 2018-03-30 | A kind of magnetoelectric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108827347A true CN108827347A (en) | 2018-11-16 |
Family
ID=64154299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810275672.1A Withdrawn CN108827347A (en) | 2018-03-30 | 2018-03-30 | A kind of magnetoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108827347A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470880A (en) * | 2019-09-17 | 2019-11-19 | 北京无线电测量研究所 | A kind of current sensor probe, preparation method and the sensor including it |
| CN111155846A (en) * | 2020-01-18 | 2020-05-15 | 浙江机电职业技术学院 | Magnetoelectric coupling lock cylinder |
| CN111913221A (en) * | 2020-07-10 | 2020-11-10 | 福建岩土工程勘察研究院有限公司 | Geotechnical surveying device and surveying method |
| CN112490350A (en) * | 2020-11-23 | 2021-03-12 | 航天特种材料及工艺技术研究所 | Self-biased magnetoelectric composite material structure and assembling method thereof |
| CN113156346A (en) * | 2021-03-31 | 2021-07-23 | 郑州轻工业大学 | Method for detecting parallel vortex alternating current-direct current bimodal magnetic field by using annular magnetoelectric sensor |
| CN113406194A (en) * | 2021-06-08 | 2021-09-17 | 哈尔滨工业大学（深圳） | Differential magneto-electric eddy current detection sensor |
| CN113588067A (en) * | 2021-07-28 | 2021-11-02 | 上海交通大学 | Precise vibration sensor based on magnetoelectric effect |
-
2018
- 2018-03-30 CN CN201810275672.1A patent/CN108827347A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470880A (en) * | 2019-09-17 | 2019-11-19 | 北京无线电测量研究所 | A kind of current sensor probe, preparation method and the sensor including it |
| CN110470880B (en) * | 2019-09-17 | 2021-09-10 | 北京无线电测量研究所 | Current sensor probe, preparation method thereof and sensor comprising current sensor probe |
| CN111155846A (en) * | 2020-01-18 | 2020-05-15 | 浙江机电职业技术学院 | Magnetoelectric coupling lock cylinder |
| CN111913221A (en) * | 2020-07-10 | 2020-11-10 | 福建岩土工程勘察研究院有限公司 | Geotechnical surveying device and surveying method |
| CN112490350A (en) * | 2020-11-23 | 2021-03-12 | 航天特种材料及工艺技术研究所 | Self-biased magnetoelectric composite material structure and assembling method thereof |
| CN113156346A (en) * | 2021-03-31 | 2021-07-23 | 郑州轻工业大学 | Method for detecting parallel vortex alternating current-direct current bimodal magnetic field by using annular magnetoelectric sensor |
| CN113406194A (en) * | 2021-06-08 | 2021-09-17 | 哈尔滨工业大学（深圳） | Differential magneto-electric eddy current detection sensor |
| CN113406194B (en) * | 2021-06-08 | 2022-06-14 | 哈尔滨工业大学（深圳） | Differential magneto-electric eddy current detection sensor |
| CN113588067A (en) * | 2021-07-28 | 2021-11-02 | 上海交通大学 | Precise vibration sensor based on magnetoelectric effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181116 |
|
| WW01 | Invention patent application withdrawn after publication |