CN208953078U - A kind of sensor based on magnesium silicide thin-film - Google Patents
A kind of sensor based on magnesium silicide thin-film Download PDFInfo
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- CN208953078U CN208953078U CN201822036046.5U CN201822036046U CN208953078U CN 208953078 U CN208953078 U CN 208953078U CN 201822036046 U CN201822036046 U CN 201822036046U CN 208953078 U CN208953078 U CN 208953078U
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- magnesium silicide
- silicide thin
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- ring
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Abstract
The utility model discloses a kind of sensors based on magnesium silicide thin-film, it includes: connector sleeve (1) and adapter sleeve (9), adapter sleeve (9) fixed operating sleeve (1) bottom end, adapter sleeve (9) bottom is provided with detection hole (8), it is characterized by: being provided with upper press ring (4) and lower pressure ring (7) in connector sleeve (1), it is fixed between upper press ring (4) and lower pressure ring (7) magnesium silicide thin-film (11), the center of upper press ring (4), which is provided with, powers on pole piece (12)；Lower pressure ring (7) center is provided with lower electrode slice (10)；The prior art is solved there are transducer arrangement configuration complexity, structure setting can not protrude into high-temperature liquid plane or less and carry out the technical problems such as the detection of high temperature liquid level.
Description
Technical field
The utility model belongs to sensor technical field more particularly to a kind of sensor based on magnesium silicide thin-film.
Background technique
Currently, many occasions require to detect the liquid level of liquid, steam, such as aluminium in industrial processes
During alloy die cast, needs to detect the molten metal liquid level in holding furnace, during chemical reaction, need to stoste pool
Interior liquid level is detected, wherein 600 DEG C -700 DEG C of the temperature of Al-alloy metal liquid, and chemical reaction heat is usually at 300 DEG C -400
DEG C, temperature is higher with respect to other occasions, and existing liquid level sensor is difficult reliably to be detected in 200 DEG C or more of environment
Work, and usually when being checked, it is checked by relay, multiple points is set in container, to highest, minimum point
Detected, so that detection contact span increases, influence detection accuracy, and when contact is corroded after, need integrally into
Row replacement is unable to partial disassembly, and waste is serious, and service life is short, and metal semiconductor compound material magnesium silicide has antifluorite
Crystal structure, group space Fm3m, face-centered cubic (fcc) structure, and fusing point is 1085 DEG C, conductivity 16.7S/cm, is had
Good high temperature resistant property, but it is few to the research application of magnesium silicide at present.
Publication number CN204705373U discloses a kind of Multifunction Sensor based on carborundum films structure comprising
Silicon fiml, silicon substrate, carborundum films and platinum resistor, wherein carborundum films are sealed in a vacuum chamber by silicon fiml and silicon substrate,
Carborundum films are supported by four folded beams, and the upper and lower surface of carborundum films respectively prepares one layer of gold electrode, carborundum films
Upper gold electrode and silicon fiml form capacitor, and the lower gold electrode and silicon substrate of carborundum films form lower capacitor, thin based on silicon carbide
The capacitance measurement circuit using upper and lower capacitor as capacitor is additionally provided with inside the Multifunction Sensor of membrane structure, in the support of silicon fiml
Temperature sensor is equipped at position, the apparatus structure is complicated, and structure setting can not protrude into high-temperature liquid plane or less and carry out height
The detection of warm liquid level.
Utility model content:
Technical problem to be solved by the utility model is: a kind of sensor based on magnesium silicide thin-film is provided, it is existing to solve
Complicated with the presence of technology transducer arrangement configuration, structure setting can not protrude into high-temperature liquid plane or less and carry out high temperature liquid level
The technical problems such as detection.
Technical solutions of the utility model:
A kind of sensor based on magnesium silicide thin-film, it includes: connector sleeve and adapter sleeve, adapter sleeve fixed operating sleeve bottom
End, adapter sleeve bottom is provided with detection hole, upper press ring and lower pressure ring is provided in connector sleeve, is fixed between upper press ring and lower pressure ring
Magnesium silicide thin-film, the center of upper press ring, which is provided with, powers on pole piece；Lower pressure ring center is provided with lower electrode slice.
Restraining position ring block is arranged in connector sleeve internal upper part.
Upper press ring upper edge edge is provided with symmetrical two rotation stop pins.
Signal line connection point is respectively arranged on upper press ring and lower pressure ring.
The position being in contact on upper press ring and lower pressure ring with magnesium silicide thin-film is provided with tread plate.
Arc protrudes the pole piece that powers on upper press ring upward.
Lower electrode slice on lower pressure ring protrudes downward.
The utility model has the beneficial effects that
The utility model carries out level sensing using magnesium silicide, and the high temperature resistant degree of magnesium silicide is higher, can be in higher temperatures
It is detected under degree, and by measuring liquid level to two sides capacitance variation, detection accuracy is more preferable, and structure is simple, detection
Point negligible amounts, maintenance easy to disassemble, the service life is longer；Reach using magnesium silicide thin-film, liquid level is detected
Purpose；The prior art is solved there are transducer arrangement configuration complexity, structure setting can not protrude into high-temperature liquid plane or less
Carry out the technical problems such as the detection of high temperature liquid level.
Detailed description of the invention:
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment:
A kind of sensor based on magnesium silicide thin-film, it includes: connector sleeve 1 and adapter sleeve 9,9 fixed operating sleeve 1 of adapter sleeve
Bottom end, 9 bottom of adapter sleeve are provided with detection hole 8, and upper press ring 4 and lower pressure ring 7, upper press ring 4 and lower pressure ring 7 are provided in connector sleeve 1
Between be fixed with magnesium silicide thin-film 11, the center of upper press ring 4, which is provided with, powers on pole piece 12；Lower 7 center of pressure ring setting
There is lower electrode slice 10.
Restraining position ring block 2 is arranged in 1 internal upper part of connector sleeve.
4 upper edge of upper press ring edge is provided with symmetrical two rotation stop pins 3；
Signal line connection point is respectively arranged on upper press ring 4 and lower pressure ring 7.Upper press ring 4 and lower pressure ring 7 use insulating materials
It is made, power-on and power-off pole piece passes through the signal wire being arranged on conducting wire or other conductive materials and upper press ring 4 and lower pressure ring 7 respectively and connect
Point connection.
The position being in contact on upper press ring 4 and lower pressure ring 7 with magnesium silicide thin-film 11 is provided with tread plate 6.
Arc protrudes the pole piece 12 that powers on upper press ring 4 upward.
Lower electrode slice 10 on lower pressure ring 7 protrudes downward.
The utility model is further illustrated with reference to the accompanying drawing:
The utility model is by connector sleeve (1), stop collar (2), rotation stop pin (3), upper press ring (4), lead tie point (5), anti-
Draw runner (6), lower pressure ring (7), detection hole (8), adapter sleeve (9), lower electrode slice (10), magnesium silicide thin-film (11) and power on pole piece
(12) form, adapter sleeve (9) is placed on connector sleeve (1) bottom end, and with connector sleeve (1) bolt, adapter sleeve (9) bottom is opened
Have detection hole (8), lower pressure ring (7) is placed in connector sleeve (1), is equipped with lead tie point (5) on the lower pressure ring (7), lower electrode
Piece (10) is placed in lower pressure ring (7) bosom position, and lower pressure ring (7) inner round portion extends to middle position, and with lower electricity
Pole piece (10) is connected, and the lower electrode slice (10) is recessed to adapter sleeve (9) direction, and upper press ring (4) is placed in connector sleeve (1),
And it is located at the surface of lower pressure ring (7), lead tie point (5) are equipped on the upper press ring (4), pole piece (12) is powered on and is placed in pressure
Ring (4) bosom position, upper press ring (4) inner round portion extends internally, and is connected with pole piece (12) is powered on, it is described on
Electrode slice (12) is protruded to connector sleeve (1) top orientation arc, and stop collar (2) is placed on connector sleeve (1) inner wall, and is located at upper pressure
The top of ring (4), the stop collar (2) are connected by two rotation stop pins (3) with upper press ring (4), two rotation stop pins (3)
Symmetrical, magnesium silicide thin-film (11) is placed in connector sleeve (1), and between upper press ring (4) and lower pressure ring (7), the pushing
The side of ring (7) corresponding magnesium silicide thin-film (11) is equipped with tread plate (6), and is fitted with magnesium silicide thin-film (11) side, described
The side of upper press ring (4) corresponding magnesium silicide thin-film (11) is equipped with tread plate (6), and is affixed with magnesium silicide thin-film (11) other side
It closes, is equipped with lead tie point (5) on the magnesium silicide thin-film (11).
The lower electrode slice (10) is recessed to adapter sleeve (9) direction, powers on pole piece (12) to connector sleeve (1) top orientation arc
The design of shape protrusion can guarantee magnesium silicide thin-film (11) and power on pole piece (12), lower electrode slice (10) no in the initial state
Contact；The side of the lower pressure ring (7) corresponding magnesium silicide thin-film (11) is equipped with tread plate (6), and with magnesium silicide thin-film (11) one
Side fits, and the side of the upper press ring (4) corresponding magnesium silicide thin-film (11) is equipped with tread plate (6), and and magnesium silicide thin-film
(11) design that the other side fits can increase the frictional force between magnesium silicide thin-film (11), improve to magnesium silicide thin-film
(11) stability is gripped；Reach using magnesium silicide thin-film (11), the purpose that liquid level is detected.
In use, under original state, magnesium silicide thin-film (11) and power on pole piece (12), lower electrode slice (10) does not contact, first
External capacitive measuring circuit by lead tie point (5) and is first powered on into pole piece (12), lower electrode slice (10), magnesium silicide thin-film
(11) it is connected, powers on and form electric field between pole piece (12) and lower electrode slice (10), external connection bar and connector sleeve (1) is another
End is connected, and then transfers the utility model to liquid, and liquid is entered by detection hole (8), and liquid-level pressure squeezes silication
Magnesium film (11), magnesium silicide thin-film (11) deformation, magnesium silicide thin-film (11) and the reduction that the distance between powers on pole piece (12), and under
The distance between electrode slice (10) increase, and then capacitance measurement circuit detection magnesium silicide thin-film (11) and power on pole piece (12) it
Between capacitor increase, capacitor between magnesium silicide thin-film (11) and lower electrode slice (10) reduction, capacitance measurement circuit detects two
The variation of person's capacitance difference, the voltage that capacitance measurement circuit applies increase as magnesium silicide thin-film (11) pressure increases,
Therefore measurement voltage swing can be obtained liquid-level pressure, and then obtain level value；
The utility model carries out level sensing using magnesium silicide, and the high temperature resistant degree of magnesium silicide is higher, can be in higher temperatures
It is detected under degree, and by measuring liquid level to two sides capacitance variation, detection accuracy is more preferable, and structure is simple, detection
Point negligible amounts, maintenance easy to disassemble, the service life is longer.
Claims (7)
1. a kind of sensor based on magnesium silicide thin-film, it includes: connector sleeve (1) and adapter sleeve (9), and adapter sleeve (9) is fixed to be connected
Female connector (1) bottom end, adapter sleeve (9) bottom are provided with detection hole (8), it is characterised in that: are provided with upper press ring (4) in connector sleeve (1)
It with lower pressure ring (7), is fixed between upper press ring (4) and lower pressure ring (7) magnesium silicide thin-film (11), the center of upper press ring (4)
It is provided with and powers on pole piece (12)；Lower pressure ring (7) center is provided with lower electrode slice (10).
2. a kind of sensor based on magnesium silicide thin-film according to claim 1, it is characterised in that: in connector sleeve (1)
Restraining position ring block (2) are arranged in portion.
3. a kind of sensor based on magnesium silicide thin-film according to claim 1, it is characterised in that: upper press ring (4) top
Edge is provided with symmetrical two rotation stop pins (3).
4. a kind of sensor based on magnesium silicide thin-film according to claim 1, it is characterised in that: upper press ring (4) is under
Pressure ring is respectively arranged with signal line connection point on (7).
5. a kind of sensor based on magnesium silicide thin-film according to claim 1, it is characterised in that: upper press ring (4) is under
The position being in contact on pressure ring (7) with magnesium silicide thin-film (11) is provided with tread plate (6).
6. a kind of sensor based on magnesium silicide thin-film according to claim 1, it is characterised in that: on upper press ring (4)
Powering on pole piece (12), arc protrudes upward.
7. a kind of sensor based on magnesium silicide thin-film according to claim 1, it is characterised in that: on lower pressure ring (7)
Lower electrode slice (10) is protruded downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822036046.5U CN208953078U (en) | 2018-12-05 | 2018-12-05 | A kind of sensor based on magnesium silicide thin-film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822036046.5U CN208953078U (en) | 2018-12-05 | 2018-12-05 | A kind of sensor based on magnesium silicide thin-film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208953078U true CN208953078U (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822036046.5U Active CN208953078U (en) | 2018-12-05 | 2018-12-05 | A kind of sensor based on magnesium silicide thin-film |
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| Country | Link |
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| CN (1) | CN208953078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387262A (en) * | 2018-12-05 | 2019-02-26 | 贵州大学 | A kind of sensor structure based on magnesium silicide thin-film |
-
2018
- 2018-12-05 CN CN201822036046.5U patent/CN208953078U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387262A (en) * | 2018-12-05 | 2019-02-26 | 贵州大学 | A kind of sensor structure based on magnesium silicide thin-film |
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