CN105737871A - Maintenance-free underwater magnetic sensor - Google Patents
Maintenance-free underwater magnetic sensor Download PDFInfo
- Publication number
- CN105737871A CN105737871A CN201610118687.8A CN201610118687A CN105737871A CN 105737871 A CN105737871 A CN 105737871A CN 201610118687 A CN201610118687 A CN 201610118687A CN 105737871 A CN105737871 A CN 105737871A
- Authority
- CN
- China
- Prior art keywords
- magnetic sensor
- housing
- top cover
- silicone grease
- lower house
- Prior art date
- 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.)
- Granted
Links
- 239000004519 grease Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 22
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 239000013535 sea water Substances 0.000 description 10
- 230000010412 perfusion Effects 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- 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
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/26—Windows; Cover glasses; Sealings therefor
Abstract
The invention relates to a maintenance-free underwater magnetic sensor, comprising a housing and a magnetic sensor arranged inside the housing; the housing comprises a cylinder-shaped lower housing with an opening on the upper end, and a top cover buckled on the lower housing; the top cover is provided with a wiring hole for a signal cable to pass through; one end of the signal cable is connected to the magnetic sensor, and the other end is extended above the water to connect to the control device; the lower housing is filled with the silicone grease; the magnetic sensor is submerged by the silicone grease and a safety cavity is maintained between the silicone grease and the top cover; the density of the silicon grease is 1.2g/cm3; the top cover is connected to the lower housing through the bolt; height of the safety cavity is 10mm; and the wiring hole is provided with a watertight head preventing water from entering into the housing. Through filling the housing with the silicone grease and using the physic characteristic of the silicon grease, the maintenance-free underwater magnetic sensor is improved in the watertightness and corrosion resistance performance compared with a conventional sensor.
Description
Technical field
The present invention relates to a kind of non-maintaining Magnetic Sensor under water.
Background technology
Along with needing and scientific and technical progress of human social development, the fields such as the scale of Underwater Engineering is increasing, and the investigation of resource under water, offshore oil detection, lifesaving of speedily carrying out rescue work, under water civil engineering construction and ocean are military use underwater instrument equipment dissimilar, difference in functionality in a large number.Therefore, the design of underwater instrument equipment and development are general and important work.
In underwater instrument equipment, many times need to rely on sensing magnetic signal to transmit information, how the electromagnetic signal sensed can be passed and long-term normal operation under water is this field a great problem urgently to be resolved hurrily.
Existing watertight Magnetic Sensor is mainly irrigated in sensor shell body, due to silicone oil have good heat conductivity, insulating properties and be widely used.But owing to the density ratio water of silicone oil is little, when the housing breakage of sensor external, silicone oil is very easily extruded hence into enclosure interior by sea water, and sensor and signal cable can be produced corrosion and damage by the entrance of sea water.
Summary of the invention
The technical problem to be solved is to provide that a kind of watertightness is good, prevent seawater corrosion, non-maintaining Magnetic Sensor under water.
The technical scheme is that a kind of non-maintaining Magnetic Sensor under water, including housing and the Magnetic Sensor being arranged in described housing, the cylindrical lower house that described housing includes upper end open and the top cover being fastened on described lower house, described top cover has the cable hole for signal cable traverse, described signal cable one end is connected with Magnetic Sensor, the other end extends to more than the water surface and is connected with control equipment, be perfused with silicone grease in described lower house, described silicone grease do not have Magnetic Sensor and and described top cover between leave secure chamber.
The invention has the beneficial effects as follows: lower casing perfusion in vivo silicone grease, silicone grease has good waterproof seal, waterproof, solvent resistance and creep resistance energy, not corroding metal and comparatively thickness.Because the density of sea water is about 1.028g/cm3, when lower house breakage, owing to density of sea water is less than the density of silicone grease, sea water can upwards float, and without by silicone grease extrusion cavity, the sea water entering lower house can upwards float to the position of secure chamber, would not destroy Magnetic Sensor and signal cable.The fastening structure of top cover and lower house, it is possible to make the installation of magnetic strength device, the perfusion of silicone grease, cable the work such as connection and maintenance convenient.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the density of described silicone grease is 1.2g/cm3。
Adopting above-mentioned further scheme to provide the benefit that, the silicone grease using density bigger can avoid sea water to be extruded by silicone grease after entering housing.
Further, described top cover is connected with lower house by bolt.
Adopting above-mentioned further scheme to provide the benefit that, top cover is connected with lower house by bolt, and such connected mode both can have been placed sea water and entered in housing, can install again Magnetic Sensor, perfusion silicone grease easily and connect cable.
Further, the height of described secure chamber is 10mm.
Above-mentioned further scheme is adopted to provide the benefit that, the height of the reserved secure chamber in lower house top can not be too high, otherwise can not meet the requirement covering Magnetic Sensor, can not be too low, silicone grease can not be extruded by sea water slightly at most from top to bottom that otherwise enter housing, it is possible to corrosion sensor or cable.
Further, described cable hole place is provided with the watertight head preventing water from entering in housing.
Adopting above-mentioned further scheme to provide the benefit that, watertight head is possible to prevent water to enter in housing from the gap between cable and top cover.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In accompanying drawing, the list of parts representated by each label is as follows:
1, housing, 11, lower house, 12, top cover, 2, signal cable, 3, cable hole, 4, Magnetic Sensor, 5, secure chamber, 6, bolt, 7, watertight head.
Detailed description of the invention
Below in conjunction with accompanying drawing, principles of the invention and feature being described, example is served only for explaining the present invention, is not intended to limit the scope of the present invention.
As shown in Figure 1, a kind of non-maintaining Magnetic Sensor under water, including housing 1 and the Magnetic Sensor 4 being arranged in described housing 1, described housing 1 includes the cylindrical lower house 11 of upper end open and the top cover 12 being fastened on described lower house 11, described top cover 12 has the cable hole 3 for signal cable 2 traverse, described signal cable 2 one end is connected with Magnetic Sensor 4, the other end extends to more than the water surface and is connected with control equipment, be perfused with silicone grease in described lower house 11, described silicone grease do not have Magnetic Sensor 4 and and described top cover 12 between leave secure chamber 5.
The density of described silicone grease is 1.2g/cm3。
Described top cover is connected with lower house 11 by bolt 6.
The height of described secure chamber 5 is 10mm.
Described cable hole 3 place is provided with the watertight head 7 preventing water from entering in housing 1.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (5)
1. Magnetic Sensor under water a kind non-maintaining, it is characterized in that, including the housing (1) being positioned under water and the Magnetic Sensor (4) being arranged on described housing (1), cylindrical lower house (11) that described housing (1) includes upper end open and the top cover (12) being fastened on described lower house (11), described top cover (12) has the cable hole (3) for signal cable (2) traverse, described signal cable (2) one end is connected through cable hole (3) with Magnetic Sensor (4), the other end extends to more than the water surface and is connected with control equipment, described lower house is perfused with silicone grease in (11), described silicone grease do not have Magnetic Sensor (4) and and described top cover (12) between leave secure chamber (5).
2. a kind of non-maintaining Magnetic Sensor under water according to claim 1, it is characterised in that the density of described silicone grease is 1.2g/cm3。
3. a kind of non-maintaining Magnetic Sensor under water according to claim 1, it is characterised in that described top cover (12) is connected with lower house (11) by bolt (6).
4. a kind of non-maintaining Magnetic Sensor under water according to claim 1, it is characterised in that the height of described secure chamber (5) is 10mm.
5. a kind of non-maintaining Magnetic Sensor under water according to any one of Claims 1-4, it is characterised in that described cable hole (3) place is provided with the watertight head (7) preventing water from entering in housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118687.8A CN105737871B (en) | 2016-03-02 | 2016-03-02 | A kind of non-maintaining underwater Magnetic Sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118687.8A CN105737871B (en) | 2016-03-02 | 2016-03-02 | A kind of non-maintaining underwater Magnetic Sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105737871A true CN105737871A (en) | 2016-07-06 |
| CN105737871B CN105737871B (en) | 2018-12-14 |
Family
ID=56249818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610118687.8A Active CN105737871B (en) | 2016-03-02 | 2016-03-02 | A kind of non-maintaining underwater Magnetic Sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105737871B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362472A (en) * | 2017-12-13 | 2018-08-03 | 中国特种飞行器研究所 | A kind of submarine navigation device model stability test module |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09171082A (en) * | 1995-12-20 | 1997-06-30 | Toshiba Corp | Neutron detector and its production method |
| US20020064367A1 (en) * | 2000-07-31 | 2002-05-30 | Akbar Arab-Sadeghabadi | Pressure vessel capable of withstanding elevated hydrostatic pressures, and elevated temperature |
| US20080196919A1 (en) * | 2006-05-29 | 2008-08-21 | Klaus Manfred Steinich | Watertight sensor |
| CN202305035U (en) * | 2011-09-30 | 2012-07-04 | 濮阳市瑞森石油树脂有限公司 | Temperature sensor assembly |
| JP2014224272A (en) * | 2014-08-29 | 2014-12-04 | 東洋紡株式会社 | Resin composition, electric/electronic component encapsulated body using the resin composition, and method for manufacturing the same |
| CN204007893U (en) * | 2014-06-20 | 2014-12-10 | 中南林业科技大学 | A kind of temperature sensor based on nano-graphene material |
| CN104696606A (en) * | 2015-03-17 | 2015-06-10 | 常州依科迪环境科技有限公司 | Sealed sensor |
| CN104990765A (en) * | 2015-07-10 | 2015-10-21 | 华南理工大学 | Instrument and method for monitoring inshore and estuary sedimentary layer pore water |
-
2016
- 2016-03-02 CN CN201610118687.8A patent/CN105737871B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09171082A (en) * | 1995-12-20 | 1997-06-30 | Toshiba Corp | Neutron detector and its production method |
| US20020064367A1 (en) * | 2000-07-31 | 2002-05-30 | Akbar Arab-Sadeghabadi | Pressure vessel capable of withstanding elevated hydrostatic pressures, and elevated temperature |
| US20080196919A1 (en) * | 2006-05-29 | 2008-08-21 | Klaus Manfred Steinich | Watertight sensor |
| CN202305035U (en) * | 2011-09-30 | 2012-07-04 | 濮阳市瑞森石油树脂有限公司 | Temperature sensor assembly |
| CN204007893U (en) * | 2014-06-20 | 2014-12-10 | 中南林业科技大学 | A kind of temperature sensor based on nano-graphene material |
| JP2014224272A (en) * | 2014-08-29 | 2014-12-04 | 東洋紡株式会社 | Resin composition, electric/electronic component encapsulated body using the resin composition, and method for manufacturing the same |
| CN104696606A (en) * | 2015-03-17 | 2015-06-10 | 常州依科迪环境科技有限公司 | Sealed sensor |
| CN104990765A (en) * | 2015-07-10 | 2015-10-21 | 华南理工大学 | Instrument and method for monitoring inshore and estuary sedimentary layer pore water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362472A (en) * | 2017-12-13 | 2018-08-03 | 中国特种飞行器研究所 | A kind of submarine navigation device model stability test module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105737871B (en) | 2018-12-14 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160706 Assignee: Wuhan Research Institute of Marine Electric Propulsion (No 712 Research Institute of China Shipbuilding Corp.) Assignor: WUHAN ZHONGBANG BOER HI-TECH Co.,Ltd. Contract record no.: X2023980046775 Denomination of invention: A maintenance free underwater magnetic sensor Granted publication date: 20181214 License type: Exclusive License Record date: 20231110 |