CN117937112A - Magneto-electric long wave receiving antenna - Google Patents
Magneto-electric long wave receiving antenna Download PDFInfo
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- CN117937112A CN117937112A CN202211265114.XA CN202211265114A CN117937112A CN 117937112 A CN117937112 A CN 117937112A CN 202211265114 A CN202211265114 A CN 202211265114A CN 117937112 A CN117937112 A CN 117937112A
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- 239000000463 material Substances 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 20
- 238000012544 monitoring process Methods 0.000 claims description 18
- 238000012806 monitoring device Methods 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 4
- 230000005684 electric field Effects 0.000 claims description 4
- 230000005670 electromagnetic radiation Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920000334 poly[3-(3'-N,N,N-triethylamino-1-propyloxy)-4-methylthiophene-2,5-diyl hydrochloride] polymer Polymers 0.000 claims description 4
- 229910001329 Terfenol-D Inorganic materials 0.000 claims description 3
- 229910000697 metglas Inorganic materials 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229910000807 Ga alloy Inorganic materials 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 239000011797 cavity material Substances 0.000 description 42
- 239000011257 shell material Substances 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 4
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
-
- 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
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
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- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to a magneto-electric long wave receiving antenna, which is characterized by comprising: the negative pressure cavity is used for shielding external acoustic interference and/or noise interference; the magneto-electric type weak magnetic sensing unit is arranged in the negative pressure cavity, has a low-frequency magnetic field receiving function and converts a received magnetic field signal into an electric signal; the vibration reduction system is arranged in the negative pressure cavity and is used for reducing vibration interference sensed by the magneto-electric type weak magnetic sensing unit; and a wire harness connected with the magneto-electric type weak magnetic sensing unit and the top of the negative pressure cavity, wherein the wire harness is used for transmitting an electric signal output by the long-wave antenna. The magneto-electric long wave receiving antenna has small volume, can be integrated on an underwater mobile platform and has strong anti-vibration and anti-interference capabilities.
Description
Technical Field
The invention relates to a magneto-electric type long-wave receiving antenna, belonging to the field of long-wave communication.
Background
The long wave communication is widely applied to the fields of underwater communication, geological survey, earthquake prediction and the like due to strong penetrating power, but the application range of the long wave communication is limited by the huge antenna size, and if the volume of the long wave antenna can be greatly reduced, revolutionary transformation is brought to portable underwater mobile communication, underground communication, navigation and the like.
Disclosure of Invention
The invention aims to solve the technical problems:
The invention provides a magneto-electric type long-wave receiving antenna, which aims to solve the problem of large volume of the traditional long-wave antenna. The antenna utilizes sound waves to exert the multi-physical field coupling effect between the magnetostriction phase and the piezoelectric phase of the magnetoelectric composite material, realizes the detection of ultra-weak magnetic field signals, has the comprehensive advantages of ultra-high sensitivity, light weight, miniaturization and the like, and can be combined with a peripheral noise suppression device to form a subversion long-wave receiving antenna scheme.
The invention solves the technical problems by adopting the technical means that:
In order to solve the above problems, the present invention provides a magneto-electric long wave receiving antenna, comprising:
The negative pressure cavity is used for shielding external acoustic interference and/or noise interference;
The magneto-electric type weak magnetic sensing unit is arranged in the negative pressure cavity, has a low-frequency magnetic field receiving function and converts a received magnetic field signal into an electric signal;
the vibration reduction system is arranged in the negative pressure cavity and is used for reducing vibration interference sensed by the magneto-electric type weak magnetic sensing unit;
and a wire harness connected with the magneto-electric type weak magnetic sensing unit and the top of the negative pressure cavity, wherein the wire harness is used for transmitting an electric signal output by the long-wave antenna.
Preferably, the vibration reduction system is a vibration reduction table and is arranged between the bottom of the negative pressure cavity and the magneto-electric weak magnetic sensing unit.
Preferably, the vibration reduction system is an elastic suspension system arranged at two sides of the inner wall of the negative pressure cavity, and the magneto-electric weak magnetic sensing unit is arranged on the elastic suspension system.
Preferably, the magneto-electric long wave receiving antenna further comprises: the pressure monitoring device is arranged on the negative pressure cavity and is used for monitoring the pressure in the negative pressure cavity. Preferably, the magneto-electric long wave receiving antenna further comprises: the exhaust pipe is arranged on the negative pressure cavity and is used for exhausting or/and deflating the negative pressure cavity. Preferably, the magneto-electric long wave receiving antenna further comprises: and the self-detection coil is used for calibrating the response characteristic of the long-wave receiving antenna.
Preferably, the magneto-electric long wave receiving antenna further comprises:
The attitude sensor is rigidly fixed with the magneto-electric type weak magnetic sensing unit and is used for monitoring the attitude information of the magneto-electric type weak magnetic sensing unit in real time and calibrating the magnetic signals received by the long-wave receiving antenna through the attitude information;
The vibration sensor is rigidly fixed with the magneto-electric type weak magnetic sensing unit and is used for monitoring the vibration state of the magneto-electric type weak magnetic sensing unit and assisting in calibrating magnetic signals received by the long-wave antenna;
Preferably, the magneto-electric long wave receiving antenna further comprises: and the shielding device is used for shielding electromagnetic interference generated by electronic/electric components in the long-wave receiving antenna.
Preferably, the attitude sensor is selected from nine-axis attitude sensors, and the output information comprises three-dimensional acceleration, three-dimensional Euler angles, three-dimensional magnetic fields and time; or the attitude sensor is a six-axis attitude sensor, and the output information comprises three-dimensional acceleration and a three-dimensional magnetic field;
The vibration sensor is a high-sensitivity triaxial accelerometer.
Preferably, the magneto-electric long wave receiving antenna further comprises: the power supply is used for supplying power to the magneto-electric type weak magnetic sensing unit, the gesture sensor and the vibration sensor;
Preferably, the power supply is arranged in the negative pressure cavity and is an internal power supply; the power supply is a lithium battery pack, and the output end of the lithium battery pack is connected with the power supply input end of the magneto-electric weak magnetic sensing unit; or the power supply is arranged outside the negative pressure cavity and is an external power supply, and the external power supply is connected with the power supply input end of the magneto-electric type weak magnetic sensing unit through the power line of the wiring harness.
Preferably, the magneto-electric type weak magnetic sensing unit consists of a magneto-electric composite material, bias magnets arranged on two sides of the magneto-electric composite material, a low-noise special signal circuit and a packaging shell.
Preferably, the magnetoelectric composite material is formed by compounding piezoelectric materials and magnetostrictive materials according to a specific structure; the piezoelectric material is at least one of PMNT monocrystal, liNbO 3 monocrystal and PZT ceramic, and the magnetostrictive material is at least one of Terfenol-D alloy, metglas alloy and iron-gallium alloy; the specific structure of the piezoelectric material and the magnetostrictive material is at least one of L-T, L-L, L-W, multi-Push-Pull and Multi-L-T, bending.
Preferably, the low-noise special signal circuit has the functions of performing impedance matching, amplification and filtering on the electric signal output by the magnetoelectric composite material.
Preferably, the package housing has a function of shielding electric field interference, magnetic field interference and electromagnetic radiation interference.
Preferably, the material of the negative pressure cavity is selected from metal or plastic, and preferably acrylic; the negative pressure cavity is cylindrical, cuboid or square.
Preferably, the wire harness includes: positive and negative signal lines led out by the magneto-electric weak magnetic sensing unit.
Preferably, the wire harness includes: positive and negative signal lines led out by the magneto-electric type weak magnetic sensing unit; the wire harness also comprises a power line for supplying power to the magneto-electric type weak magnetic sensing unit, a serial port line of the attitude sensor, a signal line of the vibration sensor and power lines of the attitude sensor and the vibration sensor; the wire harness is connected with the outside through a plug on the negative pressure cavity.
Preferably, the self-detecting coil is a single-axis coil wound by a wire or a triaxial coil wound by a wire.
The beneficial effects are that:
compared with the traditional long wave antenna, the magneto-electric long wave receiving antenna has small volume, can be integrated on an underwater mobile platform and has strong anti-vibration interference capability.
Drawings
Fig. 1 is a block diagram of a magneto-electric long wave receiving antenna according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the magneto-electric type weak magnetic sensing unit shown in FIG. 1;
FIG. 3 is a block diagram of the self-detecting coil shown in FIG. 1;
fig. 4 is a block diagram showing a magneto-electric long wave receiving antenna according to a second embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following embodiments, which are to be understood as merely illustrative of the invention and not limiting thereof.
Description of the preferred embodiments
Disclosed herein is a magneto-electric type long wave receiving antenna capable of reducing the volume of the long wave antenna. Fig. 1 is a schematic view of an acoustic wave excited long wave receiving antenna (hereinafter referred to as "long wave receiving antenna") based on a magnetoelectric composite material according to an embodiment of the present invention.
As shown in fig. 1, the long wave receiving antenna mainly includes: the device comprises a magneto-electric type field weakening sensing unit, a negative pressure cavity, a wire harness, a vibration reduction system, an exhaust pipe, a pressure monitoring device, a self-detection coil, an attitude sensor, a vibration sensor, a shielding device and the like. The magneto-electric type weak magnetic sensing unit has a low-frequency magnetic field receiving function and converts a received magnetic field signal into an electric signal. The negative pressure cavity is used for shielding external sound wave interference and other noise interference. The wire harness is used for transmitting signals received by the long-wave antenna. The vibration reduction system is used for reducing vibration interference of the magneto-electric type weak magnetic sensing unit. The exhaust pipe is used for exhausting air and deflating the negative pressure cavity. The pressure monitoring device is used for monitoring the pressure in the negative pressure cavity in real time. The self-detection coil is used for calibrating the response size of the long-wave receiving antenna. The attitude sensor is used for monitoring the attitude information of the magneto-electric weak magnetic sensing unit in real time, and the magnetic signals received by the long-wave receiving antenna are calibrated through the attitude information. The vibration sensor is used for monitoring vibration signals in the negative pressure cavity and is used for assisting in analyzing magnetic signals received by the long wave antenna. The shielding device is used for shielding electromagnetic interference generated by electronic/electric components in the long-wave receiving antenna.
Magneto-electric weak magnetic sensing unit
In this embodiment, the magnetoelectric weak magnetic sensing unit is composed of a magnetoelectric composite material, bias magnets provided on both sides of the magnetoelectric composite material, a low-noise dedicated signal circuit, and a package case, and has a function of converting a low-frequency magnetic field into a voltage signal, as shown in fig. 2. The magnetoelectric composite material is formed by compounding a piezoelectric material and a magnetostrictive material according to a Multi-Push-Pull structure, wherein the piezoelectric material is PMNT monocrystal, the magnetostrictive material is Metglas alloy, and the composite structure of the piezoelectric material and the magnetostrictive material is Multi-Push-Pull. The low-noise special signal circuit has the functions of performing impedance matching, amplifying and filtering on the electric signal output by the magnetoelectric composite material. The packaging shell is provided with shielding electric field interference, magnetic field interference, electromagnetic radiation interference and the like, engineering plastics are selected as shell materials, and a plurality of layers of copper foils are wrapped outside the packaging shell.
Negative pressure cavity
In this embodiment, the negative pressure cavity is mainly used for shielding external acoustic wave interference and other noise interference, and the negative pressure cavity material is selected to be acrylic, and the shape of the negative pressure cavity is cylindrical barrel.
Wire harness
In this embodiment, the wire harness is used for transmitting signals received by the long wave antenna, information acquired by the attitude and vibration sensor, and a power line connected with an external power supply, and specifically includes: the device comprises two long wave antenna signal lines, two gesture sensor serial communication lines, three vibration sensor X, Y, Z shaft signal lines and two external power supply connecting lines.
Vibration damping system
In this embodiment, the vibration reduction system is a vibration reduction table for reducing vibration interference of the magneto-electric weak magnetic sensing unit. The vibration reduction table comprises a pressure bearing, a spiral spring, a buffer block, rubber and the like.
Exhausting pipe
In this embodiment, the exhaust pipe is used for exhausting and deflating the negative pressure cavity, and the exhaust pipe is made of copper or the like.
Pressure monitoring device
In this embodiment, the pressure monitoring device is used for monitoring the pressure in the negative pressure cavity in real time, and includes a pressure display, a pressure sensor, a precision electronic component, and the like.
Self-detecting coil
In this embodiment, the self-detecting coil is used for calibrating the response of the long-wave receiving antenna, and the self-detecting coil is a single-axis coil wound with copper wire, as shown in fig. 3. The output end of the precise current source is connected with the input end of the coil, the signal output end of the long wave antenna is connected with the input end of the dynamic signal analyzer, the self-checking coil can generate magnetic field signals with corresponding frequency and corresponding amplitude according to the setting by setting the precise current source, the voltage of the set frequency displayed by the dynamic signal analyzer is recorded, and the voltage value is divided by the magnetic field value to obtain the response of the long wave receiving antenna.
Attitude sensor
In this embodiment, the attitude sensor is used for monitoring the attitude information of the magneto-electric weak magnetic sensing unit in real time so as to calibrate the magnetic signal received by the long-wave receiving antenna. The attitude sensor selects nine-axis attitude sensors, and the output information comprises three-dimensional acceleration, three-dimensional Euler angles, three-dimensional magnetic fields, time and the like.
Vibration sensor
In this embodiment, the vibration sensor is used for monitoring the vibration signal in the negative pressure cavity, and for assisting in analyzing the magnetic signal received by the long wave antenna. The vibration sensor is a high-sensitivity triaxial piezoelectric accelerometer.
Shielding device
In this embodiment, the shielding device is used for shielding electromagnetic interference generated by electronic/electric components in the long-wave receiving antenna, and the shielding device can be a metal electromagnetic shielding cover and is mounted on the special signal processing circuit, the vibration sensor and the attitude sensor so as to isolate electromagnetic interference generated by the electronic devices from affecting the magneto-electric weak magnetic sensing unit.
Second embodiment
As shown in fig. 4, in this embodiment, the long wave receiving antenna mainly includes a magneto-electric type weak magnetic sensing unit, a negative pressure cavity, a wire harness, a vibration damping system, an exhaust pipe, a pressure monitoring device, a self-detecting coil, a power supply, an attitude sensor, a vibration sensor, a shielding device, and the like. The magneto-electric type weak magnetic sensing unit has a low-frequency magnetic field receiving function and converts a received magnetic field signal into an electric signal. The negative pressure cavity is used for shielding external sound wave interference and other noise interference. The wire harness is used for transmitting signals received by the long-wave antenna. The vibration reduction system is used for reducing vibration interference of the system. The exhaust pipe is used for exhausting air and deflating the negative pressure cavity. The pressure monitoring device is used for monitoring the pressure in the negative pressure cavity in real time. The self-detection coil is used for calibrating the response size of the long-wave receiving antenna. The power supply is used for supplying power to the magneto-electric type weak magnetic sensing unit and other sensors, and in the embodiment, the power supply is an internal power supply and is placed in the negative pressure cavity. The attitude sensor is used for monitoring the attitude information of the magneto-electric weak magnetic sensing unit in real time, and the magnetic signals received by the long-wave receiving antenna are calibrated through the attitude information. The vibration sensor is used for monitoring vibration signals in the negative pressure cavity and is used for assisting in analyzing magnetic signals received by the long wave antenna. The shielding device is used for shielding electromagnetic interference generated by electronic/electric components in the long-wave receiving antenna.
Magneto-electric weak magnetic sensing unit
In this embodiment, the magneto-electric weak magnetic sensing unit is composed of a magneto-electric composite material, bias magnets arranged on two sides of the magneto-electric composite material, a low-noise special signal circuit, and a packaging shell, and has a function of converting a low-frequency magnetic field into a voltage signal. The magnetoelectric composite material is formed by compounding a piezoelectric material and a magnetostrictive material according to an L-T structure, wherein the piezoelectric material is PMNT monocrystal, the magnetostrictive material is Terfenol-D alloy, and the composite structure of the piezoelectric material and the magnetostrictive material is L-T. The low-noise special signal circuit has the functions of performing impedance matching, amplifying and filtering on the electric signal output by the magnetoelectric composite material. The packaging shell is provided with shielding electric field interference, magnetic field interference, electromagnetic radiation interference and the like, plastic is selected as a shell material, and a plurality of layers of copper foils are wrapped outside the shell material. The magnetoelectric weak magnetic sensing unit is hung on the elastic hanging system through an elastic wire harness.
Negative pressure cavity
In this embodiment, the negative pressure cavity is mainly used for shielding external acoustic wave interference and other noise interference, and the negative pressure cavity material is selected to be acrylic, and the shape of the negative pressure cavity is cylindrical barrel.
Wire harness
In this embodiment, the wire harness is used for transmitting signals received by the long wave antenna, information acquired by the gesture and vibration sensors, and power lines required by the operation of each sensor, and specifically includes: the system comprises two long wave antenna signal lines, two gesture sensor serial communication lines, three vibration sensor X, Y, Z shaft signal lines and two power lines, wherein the long wave antenna, the gesture sensor and the vibration sensor share the two power lines.
Vibration damping system
In this embodiment, the vibration reduction system is an elastic suspension system for reducing vibration interference of the magneto-electric weak magnetic sensing unit. The elastic suspension system is arranged on the inner wall of the negative pressure cavity, the suspension system is composed of 8 springs, and the magneto-electric weak magnetic sensing unit is arranged on a bracket of the elastic suspension system.
Exhausting pipe
In this embodiment, the exhaust pipe is used for exhausting and deflating the negative pressure cavity, and the exhaust pipe is made of copper or the like.
Pressure monitoring device
In this embodiment, the pressure monitoring device is used for monitoring the pressure in the negative pressure cavity in real time, and includes a pressure display, a pressure sensor, a precision electronic component, and the like.
Self-detecting coil
In this embodiment, the self-detecting coil is used for calibrating the response of the long-wave receiving antenna, and the self-detecting coil is a single-axis coil wound with copper wire, as shown in fig. 3. The output end of the precise current source is connected with the input end of the coil, the signal output end of the long wave antenna is connected with the input end of the dynamic signal analyzer, the self-checking coil can generate magnetic field signals with corresponding frequency and corresponding amplitude according to the setting by setting the precise current source, the voltage of the set frequency displayed by the dynamic signal analyzer is recorded, and the voltage value is divided by the magnetic field value to obtain the response of the long wave receiving antenna.
Power supply
In this embodiment, the power supply is used for supplying power to the magneto-electric type weak magnetic sensing unit, the power supply is a lithium battery pack, the lithium battery pack is placed in the negative pressure cavity, and the output end of the lithium battery pack is connected with the magneto-electric type weak magnetic sensing unit, the power input end of the gesture sensor and the power input end of the vibration sensor, wherein the magneto-electric type weak magnetic sensing unit, the gesture sensor and the vibration sensor share one power supply.
Attitude sensor
In this embodiment, the attitude sensor is used for monitoring the attitude information of the magneto-electric weak magnetic sensing unit in real time so as to calibrate the magnetic signal received by the long-wave receiving antenna. The attitude sensor selects nine-axis attitude sensors, and the output information comprises three-dimensional acceleration, three-dimensional Euler angles, three-dimensional magnetic fields, time and the like.
Vibration sensor
In this embodiment, the vibration sensor is used for monitoring the vibration signal in the negative pressure cavity, and for assisting in analyzing the magnetic signal received by the long wave antenna. The vibration sensor is a high-sensitivity triaxial piezoelectric accelerometer.
Shielding device
In this embodiment, the shielding device is used for shielding electromagnetic interference generated by electronic/electric components in the long-wave receiving antenna, and the shielding device is a metal electromagnetic shielding cover and is mounted on the special signal processing circuit, the vibration sensor and the attitude sensor so as to isolate electromagnetic interference generated by the electronic devices from affecting the magneto-electric weak magnetic sensing unit.
Claims (17)
1. A magneto-electric long wave receiving antenna, comprising:
The negative pressure cavity is used for shielding external acoustic interference and/or noise interference;
The magneto-electric type weak magnetic sensing unit is arranged in the negative pressure cavity, has a low-frequency magnetic field receiving function and converts a received magnetic field signal into an electric signal;
The vibration reduction system is arranged in the negative pressure cavity and is used for reducing vibration interference sensed by the magneto-electric type weak magnetic sensing unit;
and a wire harness connected with the magneto-electric type weak magnetic sensing unit and the top of the negative pressure cavity, wherein the wire harness is used for transmitting an electric signal output by the long-wave antenna.
2. The magneto-electric long wave receiving antenna of claim 1, wherein the vibration damping system is a vibration damping table, and is disposed between the bottom of the negative pressure cavity and the magneto-electric weak magnetic sensing unit.
3. The magneto-electric long wave receiving antenna of claim 1, wherein the vibration damping system is an elastic suspension system installed on an inner wall of the negative pressure cavity, and the magneto-electric weak magnetic sensing unit is installed on the elastic suspension system.
4. The magneto-electric long-wave receiving antenna according to any one of claims 1 to 3, further comprising: the pressure monitoring device is arranged on the negative pressure cavity and is used for monitoring the pressure in the negative pressure cavity.
5. The magneto-electric long-wave receiving antenna according to any one of claims 1 to 3, further comprising: the exhaust pipe is arranged on the negative pressure cavity and is used for exhausting or/and deflating the negative pressure cavity.
6. The magneto-electric long-wave receiving antenna according to any one of claims 1 to 3, further comprising: and the self-detection coil is used for calibrating the response characteristic of the long-wave receiving antenna.
7. The magneto-electric long-wave receiving antenna according to any one of claims 1 to 3, further comprising:
The attitude sensor is rigidly fixed with the magneto-electric type weak magnetic sensing unit and is used for monitoring the attitude information of the magneto-electric type weak magnetic sensing unit in real time and calibrating the magnetic signals received by the long-wave receiving antenna through the attitude information;
The vibration sensor is rigidly fixed with the magneto-electric type weak magnetic sensing unit and is used for monitoring the vibration state of the magneto-electric type weak magnetic sensing unit and assisting in calibrating magnetic signals received by the long-wave antenna.
8. The magneto-electric long wave receiving antenna according to claim 7, wherein the magneto-electric long wave receiving antenna further comprises: and the shielding device is used for shielding electromagnetic interference generated by electronic/electric components in the long-wave receiving antenna.
9. The magneto-electric long wave receiving antenna according to claim 7, wherein the attitude sensor is nine-axis attitude sensor, and the output information comprises three-dimensional acceleration, three-dimensional euler angles, three-dimensional magnetic fields and time; or the attitude sensor is a six-axis attitude sensor, and the output information comprises three-dimensional acceleration and a three-dimensional magnetic field;
The vibration sensor is a high-sensitivity triaxial accelerometer.
10. The magneto-electric long wave receiving antenna according to claim 7, wherein the magneto-electric long wave receiving antenna further comprises: and the power supply is used for supplying power to the magneto-electric type weak magnetic sensing unit, the gesture sensor and the vibration sensor.
11. The magneto-electric long wave receiving antenna according to claim 10, wherein the power supply is an internal power supply provided inside the negative pressure cavity; the power supply is a lithium battery pack, and the output end of the lithium battery pack is connected with the power supply input end of the magneto-electric weak magnetic sensing unit; or the power supply is arranged outside the negative pressure cavity and is an external power supply, and the external power supply is connected with the power supply input end of the magneto-electric type weak magnetic sensing unit through the power line of the wiring harness.
12. The magneto-electric type long wave receiving antenna according to any one of claims 1 to 3, wherein the magneto-electric type weak magnetic sensing unit is composed of a magneto-electric composite material, bias magnets arranged on two sides of the magneto-electric composite material, a low noise special signal circuit, and a packaging shell.
13. The magneto-electric long wave receiving antenna according to claim 12, wherein the magneto-electric composite material is formed by compounding a piezoelectric material and a magnetostrictive material according to a specific structure; the piezoelectric material is at least one of PMNT monocrystal, liNbO 3 monocrystal and PZT ceramic, and the magnetostrictive material is at least one of Terfenol-D alloy, metglas alloy and iron-gallium alloy; the specific structure of the piezoelectric material and the magnetostrictive material is at least one of L-T, L-L, L-W, multi-Push-Pull and Multi-L-T, bending;
the low-noise special signal circuit has the functions of performing impedance matching, amplification and filtering processing on the electric signal output by the magnetoelectric composite material;
the packaging shell has the functions of shielding electric field interference, magnetic field interference and electromagnetic radiation interference.
14. A magneto-electric long wave receiving antenna according to any one of claims 1-3, wherein the material of the negative pressure cavity is selected from metal or plastic, preferably acrylic; the negative pressure cavity is cylindrical, cuboid or square.
15. A magneto-electric long wave receiving antenna according to any one of claims 1 to 3, wherein said wire harness comprises: positive and negative signal lines led out by the magneto-electric weak magnetic sensing unit.
16. The magneto-electric long wave receiving antenna according to claim 7, wherein the wire harness comprises: positive and negative signal lines led out by the magneto-electric type weak magnetic sensing unit; the wire harness also comprises a power line for supplying power to the magneto-electric type weak magnetic sensing unit, a serial port line of the attitude sensor, a signal line of the vibration sensor and power lines of the attitude sensor and the vibration sensor;
the wire harness is connected with the outside through a plug on the negative pressure cavity.
17. The magneto-electric long wave receiving antenna according to any one of claims 6, wherein the self-detecting coil is a wire-wound uniaxial coil or a wire-wound triaxial coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211265114.XA CN117937112A (en) | 2022-10-17 | 2022-10-17 | Magneto-electric long wave receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211265114.XA CN117937112A (en) | 2022-10-17 | 2022-10-17 | Magneto-electric long wave receiving antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117937112A true CN117937112A (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211265114.XA Pending CN117937112A (en) | 2022-10-17 | 2022-10-17 | Magneto-electric long wave receiving antenna |
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| Country | Link |
|---|---|
| CN (1) | CN117937112A (en) |
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2022
- 2022-10-17 CN CN202211265114.XA patent/CN117937112A/en active Pending
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