CN102954854A - Pressure sensor and pressure sensing method - Google Patents
Pressure sensor and pressure sensing method Download PDFInfo
- Publication number
- CN102954854A CN102954854A CN2011102413274A CN201110241327A CN102954854A CN 102954854 A CN102954854 A CN 102954854A CN 2011102413274 A CN2011102413274 A CN 2011102413274A CN 201110241327 A CN201110241327 A CN 201110241327A CN 102954854 A CN102954854 A CN 102954854A
- Authority
- CN
- China
- Prior art keywords
- pressure
- magnetic part
- coil
- pressure source
- sensing device
- 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.)
- Pending
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
A pressure sensing method is used for sensing pressure of a pressure source, and includes the steps: guiding the pressure of the pressure source to drive a magnetic piece for generating magnetic force to be close to or away from a coil made of conducting materials, then, enabling the coil to generate corresponding induction electromotive force by the aid of magnetic force changes during moving of the magnetic piece, and finally, utilizing the induction electromotive force to obtain a pressure change value of the pressure force by means of computing. In addition, the invention further discloses a pressure sensor using the method to achieve pressure sensing.
Description
Technical field
The present invention is relevant with sensing apparatus, refers in more detail a kind of pressure-sensing device and method for sensing thereof.
Background technology
Generally speaking, industry normally utilizes U-shaped tube manometer or Bu Dunshi pressure gauge (Bourdon-tube gage) equal pressure sensing apparatus to measure such as tire pressure, air pressure, hydraulic pressure equal pressure size.
And the common water of above-mentioned U-shaped tube manometer or mercury are as the normal fluid in the pipe; When U-shaped pipe both ends open not during plus-pressure, its two pipes liquid level is on the same level face.Have pressure differential such as two ends, then two pipe liquid-column heights will have the height difference, and the pressure differential that shows U-shaped pipe two ends that the difference in height of this fluid column can be suitable is to measure the pressure size of pressure source.
Other sees also Fig. 1, and bourdon gauge 3 is that the aldary light wall pipe 90 with the tool elliptical section curves circular arc, the end sealing of this aldary light wall pipe 90 and allowed movable extending space, its other end not to seal and be welded on the pipe adapter 92.When gas or fluid pressure are introduced from pipe adapter 92 places, can make bend pipe that the trend of outside stretching, extension is arranged, these aldary light wall pipe 90 ends are via a connecting rod 94 tractions, sector gear 96 with pointer is produced swing.When the stressed difference of aldary light wall pipe 90 excircles and inner periphery equaled the elastic force of bend pipe itself, pointer 98 just can be fixed on certain position of index dial, and the scale of its sensing is namely expressed gas or fluid pressure.
Yet the precision that this U-shaped tube manometer not only measures is lower, and employed body is to utilize glass material to make mostly, and fragmentation is arranged easily and preserve the doubt of inconvenience; In addition, this U-shaped tube manometer internal liquid often has error to produce because temperature variation changes when volume is directed at measurement easily.And the volume of the bend pipe of this bourdon gauge also can change along with environment or pressure source temperature variation, and its bend pipe also has the tired feelings type of metal to produce after stretching certain number of times easily, and the accuracy when build-up of pressure measures easily reduces.
Industry is satisfied research and development has a kind of piezoelectric type pressure-sensing device to improve above-mentioned U-shaped tube manometer and the shortcoming of bourdon gauge.This piezoelectric type pressure-sensing device is to utilize piezoelectric to make, when the pressure of piezoelectric in the source of being stressed squeezes heap, electric dipole moment in this piezoelectric material body is because shortening by compression, at this moment, this piezoelectric produces positive and negative charge to maintain the original state for this variation meeting of opposing in this piezoelectric material surface, and the number that just can produce by measuring this piezoelectric material surface thus positive and negative charge is critically extrapolated the force value of this pressure source.
Yet, though above-mentioned piezoelectric type pressure-sensing device can improve the shortcoming of known pressure-sensing device low accuracy and easy temperature influence, but because the piezoelectric type pressure-sensing device is directly to be applied to pressure by pressure source to give piezoelectric, after using a period of time, the situation that this piezoelectric type pressure-sensing device has easily corrosion, makes moist or damages.In addition, occur for avoiding electric danger of igniting, this piezoelectric type pressure-sensing device also is not suitable on the pressure measurement of inflammable gas, and so that the measured field of this piezoelectric type pressure-sensing device therefore be restricted.Therefore, comprehensively the above can be learnt, known pressure-sensing device and employed method for sensing thereof are not attained perfect yet, and the part that still haves much room for improvement.
Summary of the invention
The object of the present invention is to provide a kind of pressure-sensing device and method for sensing thereof, to overcome the deficiency that exists in the known technology.
For achieving the above object, pressure-sensing device provided by the invention is in order to the pressure size of sensing one pressure source; This pressure-sensing device includes:
One housing has an exploration hole, and an end of this exploration hole is in order to contact with this pressure source;
One coil is to make with conductive material, and is located on this housing;
One flexible rete is located in this housing, and is sealed the other end of this exploration hole, and squeezed by the pressure of this pressure source to push away and stretch; And
One magnetic part can being located in this housing relative to the mode that this coil moves, and is connected with this flexible rete;
When this flexible rete is squeezed by the pressure of this pressure source to push away to stretch by this exploration hole, will drive this magnetic part and move, and the magnetic force when making this coil moved by this magnetic part affects and produce corresponding induction electromotive force.
Described pressure-sensing device wherein, includes a computing circuit that is electrically connected with this coil, the induction electromotive force that produces in order to receiving coil, and extrapolate the force value of this pressure source according to this induction electromotive force.
Described pressure-sensing device wherein, includes a display that is electrically connected with this computing circuit, in order to the force value that shows that this computing circuit is extrapolated.
Described pressure-sensing device wherein, includes a spring, one end and this housing connect to, the other end then with this magnetic part butt; Should flexible rete squeezed by the pressure of this pressure source to push away and when stretching, drive this magnetic part and move toward the direction of this spring.
Described pressure-sensing device, wherein, this housing includes a pedestal and a capping; This pedestal is provided with this exploration hole; This capping is located on this pedestal, and this capping inside has an accommodation space; This magnetic part and this spring all are located in this accommodation space.
Described pressure-sensing device, wherein, this capping includes a main body and and adjusts knob, and this main body has this accommodation space and a screw that is communicated with this accommodation space; This adjustment knob spiral shell is located in this screw, and supports with this termination of this spring, and can promote the position that this spring is adjusted this magnetic part by this adjustment knob of turn.
The present invention also provides a kind of pressure-sensing device, in order to the pressure size of sensing one pressure source; This pressure-sensing device includes:
One housing has one and surveys groove, and this notch of surveying groove is in order to contact with this pressure source;
One coil is to make with conductive material, and is located on this housing;
One magnetic part is located in this detection groove relative to the mode that this coil moves with crowded the pushing away of pressure that can be subjected to this pressure source;
When this magnetic part is squeezed by the pressure of this pressure source to push away and when moving in this detection groove, the magnetic force when this coil is moved by this magnetic part affects and produces corresponding induction electromotive force.
Described pressure-sensing device wherein, includes a computing circuit that is electrically connected with this coil, the induction electromotive force that produces in order to receiving coil, and extrapolate the force value of this pressure source according to this induction electromotive force.
Described pressure-sensing device wherein, includes a display that is electrically connected with this computing circuit, in order to the force value that shows that this computing circuit is extrapolated.
Described pressure-sensing device wherein, includes a spring, be located in this detection groove, and an end of this spring and this housing connect to, the other end then with this magnetic part butt; The pressure of this pressure source squeezes the direction that pushes away past this spring of this magnetic part and moves.
Described pressure-sensing device, wherein, this housing includes one and adjusts knob, and the bottom land of this detection groove has a screw that is communicated with this detection groove; This adjustment knob spiral shell is located in this screw, and supports with this termination of this spring, and can promote the position that this spring is adjusted this magnetic part by this adjustment knob of turn.
Pressure sensing method provided by the invention, in order to the pressure size of sensing one pressure source, the method includes the following step:
A) pressure-driven one that guides this pressure source approaches in order to the magnetic part that produces magnetic force or away from a coil made from conductive material;
Magnetic force change when B) utilizing this magnetic part to move makes this coil produce corresponding induction electromotive force.
Described pressure sensing method, wherein, the mobile range of this magnetic part in the steps A is directly proportional with the instantaneous pressure variable quantity of this pressure source.
Described pressure sensing method, wherein, the mobile range of this magnetic part in the induction electromotive force that this coil among the step B produces and the steps A is directly proportional.
Described pressure sensing method wherein, behind this step B, includes a step C, is to utilize this induction electromotive force to calculate the change value of pressure of this pressure source, learns the force value of this pressure source with reckoning.
Described pressure sensing method, wherein, in step C, to utilize first the size of the induction electromotive force that this coil produces and direction to extrapolate this magnetic part after schedule time intrinsic displacement distance and direction, recycle this magnetic part and extrapolate the change value of pressure of this pressure source in schedule time intrinsic displacement distance and direction, to extrapolate the force value of this pressure source.
The present invention not only has better accuracy during sensing, and also applicable to various different measurements field.
Description of drawings
Fig. 1 is the synoptic diagram of known bourdon gauge commonly used.
Fig. 2 is the structural drawing of the present invention's the first preferred embodiment.
Fig. 3 is the process flow diagram of pressure sensing method of the present invention.
Synoptic diagram when Fig. 4 is the present invention's the first preferred embodiment pressure sensor.
Fig. 5 is the structural drawing of the present invention's the second preferred embodiment.
Primary clustering symbol description in the accompanying drawing:
1 pressure-sensing device; 10 housings; 11 pedestals; 111 exploration holes; 12 cappings; 121 main bodys; 1211 accommodation spaces; 1212 screws; 122 adjust knob; 13 shells; 20 coils; 25 flexible retes; 30 magnetic parts; 35 springs; 40 computing circuits; 45 displays;
2 pressure-sensing devices; 50 housings; 51 pedestals; 511 main bodys; 5111 survey groove; 5112 screws; 512 adjust knob; 52 shells; 60 coils; 65 magnetic parts; 70 springs; 75 calculate circuit; 80 displays; 100 gas pipes;
3 bourdon gauges; 90 aldary light wall pipes; 92 pipe adapters; 94 connecting rods; 96 sector gears; 98 pointers.
Embodiment
Pressure sensing method provided by the present invention is the pressure size in order to sensing one pressure source, and the method includes the following step:
A) pressure-driven one that guides this pressure source approaches in order to the magnetic part that produces magnetic force or away from a coil made from conductive material;
Magnetic force change when B) utilizing this magnetic part to move makes this coil produce corresponding induction electromotive force.
C) utilize this induction electromotive force calculating to obtain the change value of pressure of this pressure source, learn the force value of this pressure source with reckoning.
According to said method, the invention provides a kind of pressure-sensing device, it includes a housing, a coil, flexible rete and a magnetic part.Wherein, this housing has an exploration hole, and an end of this exploration hole is in order to contact with this pressure source; This coil is to make with conductive material, and is located on this housing; Should be located in this housing by flexible rete, and seal the other end of this exploration hole, and squeezed by the pressure of this pressure source to push away and stretch; This magnetic part to be can being located in this housing relative to the mode that this coil moves, and is connected with this flexible rete.
Thus, when this flexible rete is squeezed by the pressure of this pressure source to push away to stretch by this exploration hole, will drive this magnetic part and move, and the magnetic force when making this coil moved by this magnetic part affects and produce corresponding induction electromotive force.
In addition, according to said method, the invention provides another pressure-sensing device, it includes a housing, a coil and a magnetic part.Wherein, this housing has one and surveys groove, and the notch of this detection groove is used for contacting with this pressure source; This coil is to make with conductive material, and is located on this housing; This magnetic part is located in this detection groove relative to the mode that this coil moves with crowded the pushing away of pressure that can be subjected to this pressure source.
Thus, when this magnetic part is squeezed by the pressure of this pressure source to push away and when moving in this detection groove, the magnetic force when this coil is moved by this magnetic part affects and produces corresponding induction electromotive force.
According to above-mentioned design, pressure-sensing device of the present invention also includes a computing circuit that is electrically connected with this coil, the induction electromotive force that produces in order to receiving coil, and extrapolate the force value of this pressure source according to this induction electromotive force.
For more clearly understanding the present invention, hereby lift preferred embodiment and cooperate accompanying drawing to be described in detail as follows.
See also Fig. 2, the pressure-sensing device 1 of the present invention's the first preferred embodiment is with according to the pressure size that measures a pressure source, is the gas air pressure that measures in the gas pipe 100 in present embodiment, but not as limit.This pressure-sensing device 1 includes a housing 10, a coil 20, a flexible rete 25, a magnetic part 30, a spring 35, a computing circuit 40 and a display 45.Wherein:
This housing 10 includes a pedestal 11, a capping 12 and a shell 13.Have an exploration hole 111 on this pedestal 11, and an end of this exploration hole 111 is in order to being communicated with this gas pipe 100, and the gas in this gas pipe 100 can be entered in this housing 10 by these exploration hole 111 guiding.This capping 12 is located on this pedestal 11, and this capping 12 has a main body 121 and and adjust knob 122, and these main body 121 inside have an accommodation space 1211, and have a screw 1212 that is communicated with this accommodation space 1211 on this body 121; This adjustment knob 122 is located in this screw 1212.13 on this shell covers in this capping 12 and covers this capping 12.
This coil 20 is to make such as conductive materials such as copper, iron, silver.This coil 20 is to be arranged on the main body 121 of this capping 12 around the mode around this accommodation space 1211.
Should flexible rete 25 be to make with the material of the flexible effect of tool.Should be sheathed on this pedestal 11 by flexible rete 25, in order to seal the other end of this exploration hole 111.And pushed away by the extrusion of this device in Gas and stretch toward the direction of this accommodation space 1211.
This magnetic part 30 is in order to producing magnetic force, and can being located in this accommodation space 1211 relative to the mode that this coil 20 moves, and be connected with 25 layers of this Flexible films.In addition, in present embodiment, this magnetic part 30 is take permanent magnet as example, but not as limit, also can use electromagnet, magnetite or other magnetic part with magnetic force to replace.
This spring 35 is located in this accommodation space 1211.These spring 35 1 ends and this adjustment knob 122 connect to and the other end and this magnetic part 30 connect to, to promote the position that these springs 35 are adjusted this magnetic part 30 by this adjustment knob 122 of turn.
This computing circuit 40 is located in this housing 10, and between this capping 12 and this shell 13, and is electrically connected with this coil 20.
This display 45 is located on this shell 13, and is electrically connected with this computing circuit 40.
Thus, see also Fig. 3, this pressure-sensing device 1 employed pressure sensing method includes the following step:
A) utilize this this device in Gas extrusion of exploration hole 111 guiding to push away this flexible rete 25 toward the direction stretching, extension of this accommodation space 1211, move (such as Fig. 4) to drive this magnetic part 30 relative to this coil 20, and the mobile range of this magnetic part 30 in this step is directly proportional with the instantaneous pressure variable quantity of this pressure source;
Magnetic force change when B) utilizing this magnetic part 30 to move makes this coil 20 produce corresponding induction electromotive force, and the mobile range of this magnetic part 30 in the induction electromotive force that produces of this coil 20 in this step and the steps A is directly proportional;
C) utilize this computing circuit 40 to receive the induction electromotive force that this coil 20 produces, and utilize this induction electromotive force size and direction to extrapolate displacement and the sense of displacement of this magnetic part 30, recycle this displacement calculation and obtain the change value of pressure of this gas air pressure, in other words, when this coil 20 produces predetermined induction electromotive force, represent this magnetic part 30 in the schedule time intrinsic displacement preset distance, that is, the pressure of this gas air pressure produces the variation of predetermined value.Thus, just can extrapolate by the mode that magnetic force change produces induction electromotive force the force value of this gas air pressure, and on this display 45 aobvious not.
In addition, the mode that produces induction electromotive force by magnetic force change can sense this magnetic part 30 mobile range slightly exactly, and so that pressure-sensing device of the present invention 1 can accurately be extrapolated the force value that wish measures.
Moreover, the present invention is by the design in this this detecting hole 111 of flexible rete 25 sealings, so that utilize the members such as this coil 20, this computing circuit 40 and this display 45 with electric souffle dynamic characteristic, isolate to reach the effect that pneumoelectric separates or the liquid electricity separates with pressure source to be measured, so that this pressure-sensing device 1 is except the pressure measurement applicable to common gas, liquid, also applicable to the pressure measurement of the gas with inflammable characteristic, liquid, and reach the purpose that measures environment applicable to difference.
It is worth mentioning that, by above-mentioned method and design, the structure that the present invention discloses except this pressure-sensing device 1 reaches the order of the present invention, see also Fig. 5, pressure-sensing device 2 for second embodiment of the invention, it can be used to measure the gas air pressure in this gas pipe equally, and this pressure-sensing device 2 includes a housing 50, a coil 60, a magnetic part 65, a spring 70, a computing circuit 75 and a display 80.Wherein:
This housing 50 includes a pedestal 51 and a shell 52.This pedestal 51 has a main body 511 and and adjusts knob 512, has a detection groove 5111 that is communicated with this gas pipe on this main body 511, and a screw 5112 that is communicated with this detection groove 5111; This adjustment knob 512 is located in this screw 5112.52 on this shell covers on this pedestal 51 and covers this pedestal 51.
This coil 60 is to be arranged on the body 511 of this pedestal 51 around the mode around this detection groove 5111.
This magnetic part 65 is in order to producing magnetic force, and being located in this detection groove 5111 relative to the mode that this coil 60 moves.
This spring 70 is located in this detection groove 5111.These spring 70 1 ends and this adjustment knob 512 connect to and the other end and this magnetic part 65 connect to, to promote the position that these springs 70 are adjusted this magnetic part 65 by this adjustment knob 512 of turn.
This computing circuit 75 is located in this housing 50, and between this pedestal 51 and this shell 52, and is electrically connected with this coil 60.
This display 80 is located on this shell 52, and is electrically connected with this computing circuit 75.
Thus, the magnetic part 65 that utilizes above-mentioned setting just can utilize the pressure of this gas air pressure to promote in this detection groove 5111 produces moving relative to this coil 60, and the magnetic force change when utilizing this magnetic part 65 to move, and so that this coil 60 produces corresponding induction electromotive force; After this computing circuit 75 receives the induction electromotive force of these coil 60 generations, just can utilize aforesaid method to show the result who calculates in this display 80.
The pressure-sensing device 2 of present embodiment is except utilizing enclosed groove design can not only reach the effect of above-mentioned precise measure, and also can reach the purpose that above-mentioned pneumoelectric separates or the liquid electricity separates, and make the pressure-sensing device 2 of present embodiment be equally applicable to the different environment that measure.
The above only is the better possible embodiments of the present invention, not as limit, so long as utilize magnetic force change to produce the purpose of the mode amount of the reaching wall pressure of induction electromotive force, also should belong in addition feasible enforcement aspect of the present invention, and the equivalent structure that the claim scope of such as using instructions of the present invention and application is done and method for making change, and ought to be included in the claim scope of the present invention.
Claims (16)
1. a pressure-sensing device is big or small in order to the pressure of sensing one pressure source; This pressure-sensing device includes:
One housing has an exploration hole, and an end of this exploration hole is in order to contact with this pressure source;
One coil is to make with conductive material, and is located on this housing;
One flexible rete is located in this housing, and is sealed the other end of this exploration hole, and squeezed by the pressure of this pressure source to push away and stretch; And
One magnetic part can being located in this housing relative to the mode that this coil moves, and is connected with this flexible rete;
When this flexible rete is squeezed by the pressure of this pressure source to push away to stretch by this exploration hole, will drive this magnetic part and move, and the magnetic force when making this coil moved by this magnetic part affects and produce corresponding induction electromotive force.
2. pressure-sensing device according to claim 1 wherein, includes a computing circuit that is electrically connected with this coil, the induction electromotive force that produces in order to receiving coil, and extrapolate the force value of this pressure source according to this induction electromotive force.
3. pressure-sensing device according to claim 2 wherein, includes a display that is electrically connected with this computing circuit, in order to the force value that shows that this computing circuit is extrapolated.
4. pressure-sensing device according to claim 1 wherein, includes a spring, one end and this housing connect to, the other end then with this magnetic part butt; Should flexible rete squeezed by the pressure of this pressure source to push away and when stretching, drive this magnetic part and move toward the direction of this spring.
5. pressure-sensing device according to claim 4, wherein, this housing includes a pedestal and a capping; This pedestal is provided with this exploration hole; This capping is located on this pedestal, and this capping inside has an accommodation space; This magnetic part and this spring all are located in this accommodation space.
6. pressure-sensing device according to claim 5, wherein, this capping includes a main body and and adjusts knob, and this main body has this accommodation space and a screw that is communicated with this accommodation space; This adjustment knob spiral shell is located in this screw, and supports with this termination of this spring, and can promote the position that this spring is adjusted this magnetic part by this adjustment knob of turn.
7. a pressure-sensing device is big or small in order to the pressure of sensing one pressure source; This pressure-sensing device includes:
One housing has one and surveys groove, and this notch of surveying groove is in order to contact with this pressure source;
One coil is to make with conductive material, and is located on this housing;
One magnetic part is located in this detection groove relative to the mode that this coil moves with crowded the pushing away of pressure that can be subjected to this pressure source;
When this magnetic part is squeezed by the pressure of this pressure source to push away and when moving in this detection groove, the magnetic force when this coil is moved by this magnetic part affects and produces corresponding induction electromotive force.
8. pressure-sensing device according to claim 7 wherein, includes a computing circuit that is electrically connected with this coil, the induction electromotive force that produces in order to receiving coil, and extrapolate the force value of this pressure source according to this induction electromotive force.
9. pressure-sensing device according to claim 8 wherein, includes a display that is electrically connected with this computing circuit, in order to the force value that shows that this computing circuit is extrapolated.
10. pressure-sensing device according to claim 7 wherein, includes a spring, be located in this detection groove, and an end of this spring and this housing connect to, the other end then with this magnetic part butt; The pressure of this pressure source squeezes the direction that pushes away past this spring of this magnetic part and moves.
11. pressure-sensing device according to claim 10, wherein, this housing includes one and adjusts knob, and the bottom land of this detection groove has a screw that is communicated with this detection groove; This adjustment knob spiral shell is located in this screw, and supports with this termination of this spring, and can promote the position that this spring is adjusted this magnetic part by this adjustment knob of turn.
12. a pressure sensing method, in order to the pressure size of sensing one pressure source, the method includes the following step:
A) pressure-driven one that guides this pressure source approaches in order to the magnetic part that produces magnetic force or away from a coil made from conductive material;
Magnetic force change when B) utilizing this magnetic part to move makes this coil produce corresponding induction electromotive force.
13. pressure sensing method according to claim 12, wherein, the mobile range of this magnetic part in the steps A is directly proportional with the instantaneous pressure variable quantity of this pressure source.
14. pressure sensing method according to claim 13, wherein, the mobile range of this magnetic part in the induction electromotive force that this coil among the step B produces and the steps A is directly proportional.
15. pressure sensing method according to claim 12 wherein, behind this step B, includes a step C, is to utilize this induction electromotive force to calculate the change value of pressure of this pressure source, learns the force value of this pressure source with reckoning.
16. pressure sensing method according to claim 15, wherein, in step C, to utilize first the size of the induction electromotive force that this coil produces and direction to extrapolate this magnetic part after schedule time intrinsic displacement distance and direction, recycle this magnetic part and extrapolate the change value of pressure of this pressure source in schedule time intrinsic displacement distance and direction, to extrapolate the force value of this pressure source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102413274A CN102954854A (en) | 2011-08-22 | 2011-08-22 | Pressure sensor and pressure sensing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102413274A CN102954854A (en) | 2011-08-22 | 2011-08-22 | Pressure sensor and pressure sensing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102954854A true CN102954854A (en) | 2013-03-06 |
Family
ID=47763951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102413274A Pending CN102954854A (en) | 2011-08-22 | 2011-08-22 | Pressure sensor and pressure sensing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102954854A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308243A (en) * | 2012-03-05 | 2013-09-18 | 伊顿公司 | Magnetically coded temperature and pressure detection apparatus |
| CN106164363A (en) * | 2014-04-14 | 2016-11-23 | 伊利诺斯工具制品有限公司 | There is the pressure transducer of the air trap included in |
| CN107014894A (en) * | 2017-06-12 | 2017-08-04 | 重庆交通大学 | The steel construction Damage of Corroded imaging system and method detected based on electromagnetic attraction |
| WO2018164892A1 (en) * | 2017-03-07 | 2018-09-13 | Tech4Imaging Llc | Magnetic pressure sensors system for measurement and imaging of steel mass |
| US10244962B2 (en) | 2015-04-27 | 2019-04-02 | Tech4Imaging Llc | Multi-phase flow decomposition using electrical capacitance volume tomography sensors |
| US10269171B2 (en) | 2013-05-30 | 2019-04-23 | Tech4Imaging Llc | Interactive and adaptive data acquisition system for use with electrical capacitance volume tomography |
| US10281422B2 (en) | 2016-09-12 | 2019-05-07 | Tech4Imaging Llc | Displacement current phase tomography for imaging of lossy medium |
| US10359386B2 (en) | 2013-08-13 | 2019-07-23 | Tech4Imaging Llc | Modular stretchable and flexible capacitance sensors for use with electrical capacitance volume tomography and capacitance sensing applications |
| US10488236B2 (en) | 2016-02-23 | 2019-11-26 | Tech4Imaging Llc | Velocity vector field mapping using electrical capacitance sensors |
| US10551339B2 (en) | 2016-05-11 | 2020-02-04 | Tech4Imaging Llc | Smart capacitance sensors for use with electrical capacitance volume tomography and capacitance sensing applications |
| US10705043B2 (en) | 2017-05-31 | 2020-07-07 | Tech4Imaging Llc | Multi-dimensional approach to imaging, monitoring, or measuring systems and processes utilizing capacitance sensors |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063638U (en) * | 1990-04-25 | 1990-10-10 | 中国人民解放军空军工程设计研究所 | Differential pressure transducer |
| CN101223309A (en) * | 2005-09-20 | 2008-07-16 | Itw美达丰家电产品部件有限公司 | System for detecting operating parameters of an electronic household appliance featuring a relatively movable component |
| CN201229215Y (en) * | 2008-06-18 | 2009-04-29 | 鸣志国际贸易(上海)有限公司 | Pressure sensor |
| WO2010065822A1 (en) * | 2008-12-05 | 2010-06-10 | Illinois Tool Works Inc. | Modified pressure sensor for detecting operating parameters of an electric household appliance featuring a relatively movable component |
| WO2011017585A1 (en) * | 2009-08-07 | 2011-02-10 | Illinois Tool Works Inc. | Pressure sensor for an electric household appliance with additional security function |
-
2011
- 2011-08-22 CN CN2011102413274A patent/CN102954854A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063638U (en) * | 1990-04-25 | 1990-10-10 | 中国人民解放军空军工程设计研究所 | Differential pressure transducer |
| CN101223309A (en) * | 2005-09-20 | 2008-07-16 | Itw美达丰家电产品部件有限公司 | System for detecting operating parameters of an electronic household appliance featuring a relatively movable component |
| CN201229215Y (en) * | 2008-06-18 | 2009-04-29 | 鸣志国际贸易(上海)有限公司 | Pressure sensor |
| WO2010065822A1 (en) * | 2008-12-05 | 2010-06-10 | Illinois Tool Works Inc. | Modified pressure sensor for detecting operating parameters of an electric household appliance featuring a relatively movable component |
| WO2011017585A1 (en) * | 2009-08-07 | 2011-02-10 | Illinois Tool Works Inc. | Pressure sensor for an electric household appliance with additional security function |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308243B (en) * | 2012-03-05 | 2017-09-08 | 伊顿公司 | The temperature and pressure-detecting device of magnetic coding |
| CN103308243A (en) * | 2012-03-05 | 2013-09-18 | 伊顿公司 | Magnetically coded temperature and pressure detection apparatus |
| US10269171B2 (en) | 2013-05-30 | 2019-04-23 | Tech4Imaging Llc | Interactive and adaptive data acquisition system for use with electrical capacitance volume tomography |
| US10359386B2 (en) | 2013-08-13 | 2019-07-23 | Tech4Imaging Llc | Modular stretchable and flexible capacitance sensors for use with electrical capacitance volume tomography and capacitance sensing applications |
| CN106164363A (en) * | 2014-04-14 | 2016-11-23 | 伊利诺斯工具制品有限公司 | There is the pressure transducer of the air trap included in |
| US10526743B2 (en) | 2014-04-14 | 2020-01-07 | Illinois Tool Works Inc. | Pressure sensor with incorporated air trap |
| CN106164363B (en) * | 2014-04-14 | 2018-01-26 | 伊利诺斯工具制品有限公司 | Pressure sensor with the air trap included |
| US10512415B2 (en) | 2015-04-27 | 2019-12-24 | Tech4Imaging Llc | Multi-phase flow decomposition using electrical capacitance volume tomography sensors |
| US10244962B2 (en) | 2015-04-27 | 2019-04-02 | Tech4Imaging Llc | Multi-phase flow decomposition using electrical capacitance volume tomography sensors |
| US10806366B2 (en) | 2015-04-27 | 2020-10-20 | Tech4Imaging Llc | Multi-phase flow decomposition using electrical capacitance volume tomography sensors |
| US10488236B2 (en) | 2016-02-23 | 2019-11-26 | Tech4Imaging Llc | Velocity vector field mapping using electrical capacitance sensors |
| US10551339B2 (en) | 2016-05-11 | 2020-02-04 | Tech4Imaging Llc | Smart capacitance sensors for use with electrical capacitance volume tomography and capacitance sensing applications |
| US10281422B2 (en) | 2016-09-12 | 2019-05-07 | Tech4Imaging Llc | Displacement current phase tomography for imaging of lossy medium |
| US11092564B2 (en) | 2016-09-12 | 2021-08-17 | Tech4Imaging Llc | Displacement current phase tomography for imaging of lossy medium |
| US10502655B2 (en) | 2017-03-07 | 2019-12-10 | Tech4Imaging Llc | Magnetic pressure sensors system for measurement and imaging of steel mass |
| WO2018164892A1 (en) * | 2017-03-07 | 2018-09-13 | Tech4Imaging Llc | Magnetic pressure sensors system for measurement and imaging of steel mass |
| US10705043B2 (en) | 2017-05-31 | 2020-07-07 | Tech4Imaging Llc | Multi-dimensional approach to imaging, monitoring, or measuring systems and processes utilizing capacitance sensors |
| US10746685B2 (en) | 2017-05-31 | 2020-08-18 | Tech4Imaging Llc | Multi-dimensional approach to imaging, monitoring, or measuring systems and processes utilizing capacitance sensors |
| CN107014894A (en) * | 2017-06-12 | 2017-08-04 | 重庆交通大学 | The steel construction Damage of Corroded imaging system and method detected based on electromagnetic attraction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102954854A (en) | Pressure sensor and pressure sensing method | |
| Jones | Instrument Technology: Measurement of pressure, level, flow and temperature | |
| US2566369A (en) | Pressure gauge | |
| US3038336A (en) | System for measuring height and density of liquids | |
| CN202141554U (en) | Ceramic structure metal sensitive diaphragm capacitance pressure transducer | |
| Bera et al. | Study of a pressure transmitter using an improved inductance bridge network and bourdon tube as transducer | |
| US8857277B2 (en) | Pressure gauge and pressure detecting circuit thereof | |
| CN103528642B (en) | The capacitance level gauge of a kind of real-time correction dielectric constant and level measuring method thereof | |
| US9157823B2 (en) | Pressure gauge and method of measuring pressure | |
| CN102954853B (en) | Pressure sensor and pressure sensing circuit thereof | |
| CN105547566A (en) | High-precision temperature compensation pressure sensor | |
| KR101078171B1 (en) | Pressure measuring apparatus | |
| CN203241188U (en) | Inductance differential pressure sensor | |
| CN205538952U (en) | Novel closed electrostatic spark sensitivity tester | |
| CN107036755B (en) | A kind of pressure amplifier suitable for pressure measuring system | |
| CN102435381A (en) | Liquid-state metallic sodium experiment loop pressure sensor | |
| CN102954500A (en) | Gas appliance and method for adjusting and controlling same | |
| CN203704919U (en) | Differential liquid capacitor tilt sensor | |
| CN203745123U (en) | Fluid pressure measuring device | |
| TWI454677B (en) | Pressure sensing device and its sensing method | |
| CN103018109A (en) | Tester for Young's modulus | |
| TWI454678B (en) | Pressure sensing device and its pressure sensing circuit | |
| CN203629620U (en) | Metallic rotor flowmeter of inlaid spring device of measuring pipe | |
| RU2301971C2 (en) | Method and device for measuring liquid level in tank | |
| CN204301910U (en) | Two display pressure transmitter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |