CN201138258Y - Surface mounted combined pressure sensor - Google Patents
Surface mounted combined pressure sensor Download PDFInfo
- Publication number
- CN201138258Y CN201138258Y CNU2008200304651U CN200820030465U CN201138258Y CN 201138258 Y CN201138258 Y CN 201138258Y CN U2008200304651 U CNU2008200304651 U CN U2008200304651U CN 200820030465 U CN200820030465 U CN 200820030465U CN 201138258 Y CN201138258 Y CN 201138258Y
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- stainless steel
- pressure
- pressure sensor
- watertight
- signal processing
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Abstract
The utility model provides a surface mounted combined pressure sensor. A silicon pressure chip is bonded to a fritted stainless steel base frame. The fritted stainless steel base frame is welded with a 316L stainless steel membrane and a pressure tap through argon arc welding. Silicone oil is filled inside the fritted stainless steel base frame. The pressure tap is hermetically welded with a housing. A signal processing circuit board is connected with the pin of the fritted stainless steel base frame. A watertight cable is connected with the signal processing circuit board. An O-shaped seal ring is arranged on the watertight cable. A locknut fastens the O-shaped seal ring which is watertight. An encapsulant is filled in a shell body. A shell cover and the shell body are sealed by laser welding. The surface-mounted combined pressure sensor has the advantages that a sensitive core adopts a high-performance diffused silicon piezoresistive pressure oil feeding core. Inside the core, an application-specific integrated circuit converts the millivolt signals of the sensor into voltage output. The surface-mounted combined pressure sensor consists of a plurality of separate pressure sensors which can test the pressure signals of a plurality of different points and output the signals through cables. The surface-mounted combined pressure sensor is compact, light in weight with full stainless steel sealed watertight structure, and can resist shock well.
Description
Technical field
The utility model relates to a kind of inside surface the combination pressure sensor is installed, the integral body of sensor has waterproof characteristic, belongs to combination pressure sensor technical field.
Background technology
The measurement of current pressure signal is the pressure transducer that adopts threaded tube connection mode, and each pressure signal point is installed a pressure transducer, and mounted on surface needs excessive X-over; When measuring ambient atmos or liquid to pressure that cylindrical surface produced, sensor requires to be installed in cylindrical inside, uses the pressure transducer of conventional structure to have that volume is big, output signal line is many, the more loaded down with trivial details defective of installation.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned existence, proposes a kind of mounted on surface combination pressure sensor, utilizes the characteristics of diffused-silicon pressure sensitive element miniaturization, and adopts watertight cable with the single-sensor modularization, to reach the purpose of measurement.
Technical solution of the present utility model: its structure is that the Silicon pressure chip attach is on stainless steel sintering base, stainless steel sintering base and 316L stainless steel diaphragm and compression fittings are connected together with argon arc welding, silicone oil is filled in inside, compression fittings and housing seal welding, signal processing circuit board is connected with the pin of stainless steel sintering base, drawing watertight cable is connected on the signal processing circuit board plate, sealing " O " type circle is positioned on draws on the watertight cable, set nut fit sealing " O " type encloses the watertight effect, enclosure interior is filled casting glue, and cap and housing seal by laser bonding.Single-sensor adopts the miniaturization mounted on surface, and sensor is carried out modularization design, similar " string sugarcoated haws " type.Can be designed to plurality of specifications, three sensors are formed a string or three above sensors are formed a string pressure transducer group.
Advantage of the present utility model: sensitive core has adopted the oil-filled core body of high performance diffuse si pressure resistance type pressure, and the internal proprietary integrated circuit converts the sensor millivolt signal to voltage output.Combine by three independent pressure transducers, can test the pressure signal of three differences, and export simultaneously by cable.Also pressure boost sensor number is surveyed the more pressure signal of multiple spot as requested.Measurement range: 0～1Mpa; The 15VDC power supply, zero point: 0.2 ± 0.1V; Full scale: 4.8 ± 0.1V; Accuracy: 1%FS; Adopt the stainless steel welded structure; The inner epoxy glue of filling improves resistance to shock and watertightness performance; Circuit adopts ripe special-purpose amplifying circuit, and the mode of fixed resistance is adopted in the adjustment of zero point and full scale, inner no movable member, reliability of products height.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
Contrast accompanying drawing, its structure comprise housing 1,316L stainless steel diaphragm 5, Silicon pressure chip 6, stainless steel sintering base 11, signal processing circuit board 10, casting glue 12, sealing " O " type circle 9, cap 13, draw watertight cable 7; Wherein Silicon pressure chip 6 sticks on the stainless steel sintering base 11, stainless steel sintering base 11 and 316L stainless steel diaphragm 5 and compression fittings 3 usefulness argon arc weldings are connected together, silicone oil 14 is filled in inside, compression fittings 3 and housing 1 seal welding, signal processing circuit board 10 is connected with the pin of stainless steel sintering base 11, drawing watertight cable 7 is connected on signal processing circuit board 10 plates, sealing " O " type circle 9 is positioned on draws on the watertight cable 7, set nut 8 fit sealings " O " type circle 9 plays the watertight effect, the inner casting glue 12 of filling of housing 1, cap 13 and housing 1 seal by laser bonding.The effect of signal processing circuit board 10 is that the millivolt signal of sensor is exported by amplifying, adjust to standard signal, and its power supply is 15VDC, exports 0.2 ± 0.1V zero point; Full scale output 4.8 ± 0.1V.
Pressure acts on the 316L stainless steel diaphragm 5 by pressure inlets 2 and compression fittings 3, transfers the pressure on the Silicon pressure chip 6 by silicone oil 14; The signal that Silicon pressure chip 6 is produced is transferred to signal processing circuit board 10, is enlarged into standard signal through watertight cable 7 outputs through signal Processing, and the installation screw 4 on the housing 1 works the effect of installing and fixing.
Claims (2)
1, mounted on surface combination pressure sensor, it is characterized in that the Silicon pressure chip attach is on stainless steel sintering base, stainless steel sintering base and 316L stainless steel diaphragm and compression fittings are connected together with argon arc welding, silicone oil is filled in inside, compression fittings and housing seal welding, signal processing circuit board is connected with the pin of stainless steel sintering base, drawing watertight cable is connected on the signal processing circuit board plate, sealing " O " type circle is positioned on draws on the watertight cable, set nut fit sealing " O " type encloses the watertight effect, enclosure interior is filled casting glue, and cap and housing seal by laser bonding.
2, mounted on surface combination pressure sensor according to claim 1 is characterized in that being formed a string or being formed a string pressure transducer group by three above sensors by three sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200304651U CN201138258Y (en) | 2008-01-07 | 2008-01-07 | Surface mounted combined pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200304651U CN201138258Y (en) | 2008-01-07 | 2008-01-07 | Surface mounted combined pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138258Y true CN201138258Y (en) | 2008-10-22 |
Family
ID=40038942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200304651U Expired - Lifetime CN201138258Y (en) | 2008-01-07 | 2008-01-07 | Surface mounted combined pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138258Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539054A (en) * | 2011-12-28 | 2012-07-04 | 上海芮仕信息技术有限公司 | Low-power-consumption battery power supply wireless remote transmission sensor |
| CN102879131A (en) * | 2011-07-12 | 2013-01-16 | 森萨塔科技公司 | Force sensor assembly and method for assembling a force sensor assembly |
| CN108120540A (en) * | 2017-12-18 | 2018-06-05 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Mooring anchor chain tension monitoring device |
| CN108302332A (en) * | 2018-01-31 | 2018-07-20 | 绵阳市维博电子有限责任公司 | A kind of micro- leak detection device of combustion gas |
| CN108534919A (en) * | 2018-02-28 | 2018-09-14 | 南京元感微电子有限公司 | A kind of spring force Sensors ＆ Application |
| CN109030726A (en) * | 2018-06-20 | 2018-12-18 | 佛山市川东磁电股份有限公司 | A kind of mounting structure of nitrogen dioxide sensor |
| CN110082009A (en) * | 2019-03-26 | 2019-08-02 | 南京史利姆电子科技有限公司 | A method of the fixed diffusion silicon chip of sealing |
| CN115077753A (en) * | 2022-08-11 | 2022-09-20 | 江苏航运职业技术学院 | Overload self-starting pressure sensor and use method thereof |
-
2008
- 2008-01-07 CN CNU2008200304651U patent/CN201138258Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879131A (en) * | 2011-07-12 | 2013-01-16 | 森萨塔科技公司 | Force sensor assembly and method for assembling a force sensor assembly |
| CN102879131B (en) * | 2011-07-12 | 2016-09-14 | 森萨塔科技公司 | Force sensor module and the method for assembly force sensor cluster |
| CN102539054A (en) * | 2011-12-28 | 2012-07-04 | 上海芮仕信息技术有限公司 | Low-power-consumption battery power supply wireless remote transmission sensor |
| CN108120540A (en) * | 2017-12-18 | 2018-06-05 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Mooring anchor chain tension monitoring device |
| CN108302332A (en) * | 2018-01-31 | 2018-07-20 | 绵阳市维博电子有限责任公司 | A kind of micro- leak detection device of combustion gas |
| CN108302332B (en) * | 2018-01-31 | 2019-10-15 | 绵阳市维博电子有限责任公司 | A kind of micro- leak detection device of combustion gas |
| CN108534919A (en) * | 2018-02-28 | 2018-09-14 | 南京元感微电子有限公司 | A kind of spring force Sensors ＆ Application |
| CN109030726A (en) * | 2018-06-20 | 2018-12-18 | 佛山市川东磁电股份有限公司 | A kind of mounting structure of nitrogen dioxide sensor |
| CN110082009A (en) * | 2019-03-26 | 2019-08-02 | 南京史利姆电子科技有限公司 | A method of the fixed diffusion silicon chip of sealing |
| CN115077753A (en) * | 2022-08-11 | 2022-09-20 | 江苏航运职业技术学院 | Overload self-starting pressure sensor and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |
|
| CX01 | Expiry of patent term |