Amphibious portable magnetism detector

Patent metadata

Field	Value
Publication number	US-11372125-B2
Application number	US-202016847659-A
Country	US
Kind code	B2
Filing date	Apr 14, 2020
Priority date	Apr 19, 2019
Publication date	Jun 28, 2022
Grant date	Jun 28, 2022

Abstract

An amphibious portable magnetism detector includes a first housing, a first wiring tube, a first magnetic field sensor, and a central control device. The first housing defines a first inner space and a first through hole in communication with the first inner space. The first wiring tube is connected to the first housing with a first leak-tight seal formed between them, and in communication with the first inner space via the first through hole. The first magnetic field sensor is disposed in the first inner space and configured to detect a magnetic field at a target area and generate a first detection signal. The central control device is electrically connected to the first magnetic field sensor and configured to receive the first detection signal and output a first magnetic field value according to the first detection signal.

First claim

What is claimed is:

1. An amphibious portable magnetism detector, comprising:
a first housing defining a first inner space and a first through hole in communication with the first inner space;
a first wiring tube disposed outside the first housing, connected to the first housing, and in communication with the first inner space via the first through hole;
a first magnetic field sensor disposed in the first inner space and configured to detect a magnetic field at a target area and generate a first detection signal; and
a central control device electrically connected to the first magnetic field sensor and configured to receive the first detection signal and output a first magnetic field value according to the first detection signal;
wherein a first leak-tight seal is formed between the first wiring tube and the first housing to keep the first housing leak-tight; the first housing comprises a first connecting tube extending from the first through hole away from the first inner space; one end of the first wiring tube is inserted into the first connecting tube, or the first connecting tube is inserted into one end of the first wiring tube; and the first leak-tight seal is formed between an outer or inner wall of the first wiring tube and an inner or outer wall of the first connecting tube.

2. The amphibious portable magnetism detector of claim 1 , further comprising:
a second housing defining a second inner space, a second through hole in communication with the second inner space, and a third through hole opposite to the second through hole and in communication with the second inner space;
a second wiring tube disposed outside the second housing, connected to the second housing, and in communication with the second inner space via the third through hole;
a second magnetic field sensor disposed in the second inner space, electrically connected to the central control device, and configured to detect the magnetic field at the target area and generate a second detection signal;
wherein the first wiring tube is further disposed outside the second housing, connected to the second housing, and in communication with the second inner space via the second through hole, a second leak-tight seal is formed between the first wiring tube and the second housing and a third leak-tight seal is formed between the second wiring tube and the second housing to keep the second housing leak-tight;
the central control device is further configured to receive the second detection signal and output a magnetic field gradient value according to the first detection signal and the second detection signal.

3. The amphibious portable magnetism detector of claim 2 , further comprising:
a third housing defining a third inner space and a fourth through hole in communication with the third inner space; and
a locating device disposed in the third inner space, electrically connected to the central control device, and configured to locate the targeted area and generate a location signal;
wherein the second wiring tube is further disposed outside the third housing, connected to the third housing, and in communication with the third inner space via the fourth through hole;
the central control device is further configured to receive the location signal and obtain geographical coordinates of the targeted area according to the location signal.

4. The amphibious portable magnetism detector of claim 3 , further comprising:
an attitude sensor disposed in the third inner space, electrically connected to the central control device, and configured to detect a motion attitude of the locating device and output an attitude signal;
wherein the central control device is further configured to receive the attitude signal and denoise the location signal according to the attitude signal.

5. The amphibious portable magnetism detector of claim 1 , wherein a material the outer or inner wall of the first wiring tube and a material of the inner or outer wall of the first connecting tube are diffusion bonded to each other.

6. The amphibious portable magnetism detector of claim 1 , wherein a length of the first connecting tube is larger than or equal to one-third of a diameter of the first through hole, and a length of a portion of the first wiring tube inserted into the first connecting tube is larger than or equal to a half of the length of the first connecting tube.

7. The amphibious portable magnetism detector of claim 2 , wherein the second housing comprises a second connecting tube extending from the second through hole away from the second inner space and a third connecting tube extending from the third through hole away from the second inner space;
one end of the first wiring tube is inserted into the second connecting tube or the second connecting tube is inserted into one end of the first wiring tube, and the second leak-tight seal is formed between an outer or inner wall of the first wiring tube and an inner or outer wall of the second connecting tube; and
one end of the second wiring tube is inserted into the third connecting tube or the third connecting tube is inserted into one end of the second wiring tube, and the third leak-tight seal is formed between an outer or inner wall of the second wiring tube and an inner or outer wall of the third connecting tube.

8. The amphibious portable magnetism detector of claim 7 , wherein
a material the outer or inner wall of the first wiring tube and a material of the inner or outer wall of the second connecting tube are diffusion bonded to each other; and
a material the outer or inner wall of the second wiring tube and a material the inner or outer wall of the third connecting tube are diffusion bonded to each other.

9. The amphibious portable magnetism detector of claim 2 , wherein the first wiring tube and the second wiring tube are rigid.

10. The amphibious portable magnetism detector of claim 2 , wherein the first wiring tube has a circular cross-section with an outer diameter of about 50 mm to about 500 mm, and/or the second wiring tube has a circular cross-section with an outer diameter of about 50 mm to about 500 mm.

11. The amphibious portable magnetism detector of claim 2 , wherein the first wiring tube and the second wiring tube are coaxially arranged.

12. The amphibious portable magnetism detector of claim 2 , wherein the first magnetic sensor has a detection axis coincident with that of the second magnetic sensor.

13. The amphibious portable magnetism detector of claim 2 , further comprising:
a first reinforce rod disposed parallel to the first wiring tube and rigidly connected between the first housing and the second housing; and/or
a second reinforce rod disposed parallel to the second wiring tube rigidly connected to the second housing.

14. The amphibious portable magnetism detector of claim 13 , wherein the first reinforce rod has a circular cross-section with a diameter of about 10 mm to about 20 mm, and/or the second reinforce rod has a circular cross-section with a diameter of about 10 mm to about 20 mm.

15. The amphibious portable magnetism detector of claim 3 , further comprising:
a connecting component rigidly connected to the third housing to connect the amphibious portable magnetism detector to a wearable device;
wherein the connecting component is disposed substantially perpendicular to the first wiring tube and/or the second wiring tube.

16. The amphibious portable magnetism detector of claim 15 , wherein the connecting component defines a fourth inner space, the third housing defines a fifth through hole in communication with the third inner space, the fourth inner

Assignees

• Univ Tsinghua
• Beijing Inst Of Satellite Environmental Engineering

Inventors

• Zheng xiao-ping
• Sun zhen-yuan
• Wang Bin
• Geng Hua
• Deng xiao-jiao

Classifications

• G01V3/17

  operating with electromagnetic waves {(operating with millimetre waves G01V8/005)} · CPC title

• G01V3/081 Primary

  the magnetic field is produced by the objects or geological structures (characterised by the method of magnetic field measurement G01R33/00) · CPC title

• G01V3/165

  operating with magnetic or electric fields produced or modified by the object or by the detecting device (with electromagnetic waves G01V3/17) · CPC title

• G01V3/15

  specially adapted for use during transport, e.g. by a person, vehicle or boat · CPC title