CN201917345U - Novel zero-power-consumption and magnetic-attack-resistance magneto-dependent sensor - Google Patents
Novel zero-power-consumption and magnetic-attack-resistance magneto-dependent sensor Download PDFInfo
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- CN201917345U CN201917345U CN2010206538941U CN201020653894U CN201917345U CN 201917345 U CN201917345 U CN 201917345U CN 2010206538941 U CN2010206538941 U CN 2010206538941U CN 201020653894 U CN201020653894 U CN 201020653894U CN 201917345 U CN201917345 U CN 201917345U
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Abstract
The utility model relates to a novel zero-power-consumption and magnetic-attack-resistance magneto-dependent sensor, which is characterized in that the novel zero-power-consumption and magnetic-attack-resistance magneto-dependent sensor consists of a shielding cover support frame, at least one layer of shielding cover, an elastic separation pad, an elastic separation sleeve, a sensor seat, a zero-power-consumption magnetic sensitive detection element, a printed board and a nonmagnetic spring. The novel zero-power-consumption and magnetic-attack-resistance magneto-dependent sensor has the advantages that signals of a rotating magnetic field can be collected through being separated by a metal surface cover with the thickness being 2 to 3mm, and the sampling signals are stable and synchronous and can not be lost. The three-layer spherical shielding cover can effectively eliminate the external electromagnetic interference and the strong magnetic attack, the sensor can normally work under the 3000Gs strong magnetic field attack, the standard is mush higher than the requirement of national standard 100kA/m (1300Gs or 130mT), the sensor is in tight contact on the metal surface cover under the effect of a spring mechanism, the thermal deformation displacement caused by the temperature change and the relative position deviation caused by the processing assembly precision are effectively compensated, the constant distance of the magnetic signal detection is ensured, the structural design is compact, and the integration and the unitization of a sensing element, the printed board, an elastic following mechanism and the shielding cover are realized.
Description
(1) technical field:
The utility model is the magneto-dependent sensor of the diamagnetic attack of a kind of novel zero-power, is applicable to that the rotating magnetic field signal detects, and the flow signal that is particularly suitable for the rotary wing flow sensor of calorimeter, water meter detects.
(2) background technology:
In the new century, the high speed development of Chinese national economy, increasing to the demand of resource, especially outstanding is water resource and petroleum resources.Under the fundamental state policy of national energy-saving and emission-reduction promoted, country had strengthened energy-conservation dynamics, has put into effect corresponding laws and regulations, and meterage, the especially heat supply that the energy is used, the meterage of water supply are implemented in the regulation and control energy resource consumption.
China's heat supply, water measurement charge instrument---the market occupancy volume of mechanical flow meter is used the mode that detects of the flow signal of magnet ring coupling in a large number, or is used common Wei root Magnetic Sensor up to more than 80%.In order to detect the rotating magnetic field signal, on structure and material, all use the impeller loam cake of engineering plastics as flowmeter.Traditional rotating magnetic field detects mode and exists two big defectives, and one, magnet ring coupling detects the attack that mode is subjected to the external magnetic field easily, cause the blocking-up of flow signal and lose; Two, the impeller loam cake of engineering plastics is because the water hammer that exists in the heat supply supply channel, the impeller loam cake occurs and breaks and leak.
In heat supply, water measurement charge field,, different views and dispute are arranged in the industry at magnetic table and no magnetic table, stem-winder and ultrasonic table are arranged.Have the magnetic table why to be subjected to time attack easily, basic reason does not lie in the use magnet ring, but does not have good magnetic shielding measure; In addition, ultrasonic flowmeter, according to China's national situation, the problem of heat supply water quality inferiority, the mechanical flow meter being lost efficacy, ultrasonic flowmeter was lost efficacy, is not that the not problem of mechanical moving element is arranged, but water quality makes mechanical meters produce the motion fault, equally also makes ultrasonic flowmeter fault occur transmitting and receiving.And ultrasonic table has magnetic or do not have the magnetic table the same with the overwhelming majority: its ultrasonic transducer also is nonmetallic materials, can not bear the water hammer pulsation high pressure in the pipeline.
China's enormous amount office building, office building all use central air conditioner system, and the temperature adjusting pattern of most of central air conditioner is the switching value control of fan coil, and the water hammer high pressure in the pipeline appears at the keying each time of fan coil.Solve the metering of the cold and hot amount of central air conditioner system, common have magnetic table, no magnetic table and ultrasonic table all can't bear the water hammer high pressure of switching value, solves the pressure-bearing of measuring instrument, is the difficult problem of the cold and hot amount meterage of central air conditioner system.
(3) utility model content:
The purpose of this utility model is to provide the magneto-dependent sensor of the diamagnetic attack of a kind of novel zero-power, it can solve the deficiency that prior art exists, be a kind ofly both can diamagneticly to attack, metal shell detects the sensor of rotating magnetic field signal at interval again, and can bear the water hammer high pressure of switching value.
The technical solution of the utility model: the magneto-dependent sensor of the diamagnetic attack of a kind of novel zero-power, it is characterized in that it by the radome support, one deck radome, elasticity dottle pin, collapsible dist collar, sensor holder, zero-power magnetosensitive detecting element, printed board and nonmagnetic spring constitute at least, said zero-power magnetosensitive detecting element is installed in the sensor holder mounting groove; Said zero-power magnetosensitive detecting element and sensor holder are installed in the square opening of radome support; There is claw to snap in the bayonet socket on the square opening sidewall of radome support on the said sensor holder; Said bayonet socket is an oblong aperture; Said zero-power magnetosensitive detecting element and sensor holder can slide up and down in radome support square opening; Said printed board is installed in the sensor holder top, according to the positioning cylinder location at sensor holder top; Said nonmagnetic spring is installed in the spring mounting hole at sensor holder top, and spring top withstands on the inside surface top of inboard radome, forms the elasticity follower; On the said radome support at least one ring groove is arranged, each ring groove is separately installed with corresponding radome; Corresponding perforate is arranged at the top of said each layer radome, and output signal cable is drawn by perforate successively; Said elasticity dottle pin and collapsible dist collar are installed in different radome interlayers respectively.
Above-mentioned said each ring groove is that concentric distributes, and is four sections discontinuous annulars.
Above-mentioned said every layer of radome is shaped as with the centre of sphere equidistantly or the unequal-interval spherical surface body, and each radome bottom is useful on the quartern locating slot of location, the straight pawl and the four arcs of the symmetry that is used for fixing; Said four arcs inserts in the ring groove corresponding with it of radome support; Said straight pawl bending and radome support are fixed.
Above-mentioned said ring groove is three.
Above-mentioned said radome is three layers, i.e. external shield, middle radome and inner shield.
On the above-mentioned said radome support Magnetic Sensor installing and locating hole is arranged.
Principle of work of the present utility model: well-known, magnetic field is by magnetic line of force effect, the magnetic line of force is by the wander line of the N utmost point to the S utmost point, the sphere radome can not arrive at the magnetic line of force or near protected object, and make the magnetic line of force pass through the spherical surface body of the high permeability of radome own, reach the function of the bypass magnetic line of force; Because the interaction of magnetic field and electromagnetic field, the magnetic shielding technology of three layers of the utility model employings or multilayer sphere radome, effectively resist the attack of high-intensity magnetic field and the interference of stray magnetic field, experiment shows: when using three layers of radome, when the 3000Gs strong magnet is adsorbed on the external shield, inner shield bottom magnetic field intensity is 10Gs, maximum magnetic field strength is 40Gs in the centre of sphere, much smaller than the magnetic field intensity of the 650-700Gs of impeller magnet ring (being rotating magnetic field), guaranteed the measuring ability and the accuracy of detection of zero-power magnetosensitive detecting element.
The utility model adopts zero-power magnetosensitive detecting element, magnet ring acts on zero-power magnetosensitive detecting element with the rotating magnetic field that wheel rotation forms when the impeller upper end, because the distance between rotating magnetic field and the zero-power magnetosensitive detecting element is: the thickness 2-3mm of magnet ring top clearance+interval metallic impeller lid (or table lid), be about 4mm, selected metallic impeller lid (or table lid) material is brass alloys, the thickness of its 2-3mm is to the decay of rotating magnetic field signal, be not enough to influence the operate as normal of zero-power magnetosensitive detecting element, the utility model is through surveying: rotating magnetic field is covered the magnetic field intensity of (or table lid) far above zero-power magnetosensitive detecting element work threshold value in the interval metallic impeller.Consider the application of calorimeter, because the distortion that temperature variation causes, change the above two and between distance, the utility model uses a pair of nonmagnetic spring, spring upper end contact with inner shield Internal Spherical Surface top, and the lower end then contact with the two circular holes bottom of sensor holder, makes to be installed in that zero-power magnetosensitive detecting element covers with metallic impeller all the time in the sensor holder mounting groove (or showing to cover) top contacts under the effect of spring, do not produce the gap and widen distance, got rid of the influence of temperature deformation sensor.
Superiority of the present utility model: 1, the magnetic shielding technology and the zero-power magneto sensor detection technique of three layers of the utility model employings or multilayer sphere radome, can resist the 3000Gs high-intensity magnetic field attacks, its index is far above the regulation of CJ128-2007 calorimeter national standard 100kA/m (1300Gs or 130mT), effective the stablizing of metal material thickness 2-3mm detects the rotating magnetic field signal at interval, and this makes the imagination that adopts metal material to make impeller cover (flowmeter table lid) become possibility; 2, sensor is under the effect of spring device, and closely contact covers at the metal table, and effectively compensation is because the relative position deviation that thermal deformation displacement that temperature variation produces and process and assemble precision cause guarantees the constant distance that magnetic signal detects; The structural design compactness has realized the integrated and blocking of sensing element, printed board, elasticity follower, radome; 3, application of the present utility model and popularization will prevent the attack of high-intensity magnetic field effectively, have solved the technical barrier of metallic impeller lid (or table lid) sampling at interval, have also solved the difficult problem of the cold and hot amount meterage of central air conditioner system simultaneously; Along with the implementation of national building energy conservation meterage policy, the utility model has important role to the legal metering instrument precision and the reliability of central water supply and heat metering, and broad prospect for its application is also arranged.
(4) description of drawings:
Fig. 1 is the structural representation of the magneto-dependent sensor of the diamagnetic attack of the related a kind of novel zero-power of the utility model.
Fig. 2 is the structural representation of radome support of the magneto-dependent sensor of the diamagnetic attack of the related a kind of novel zero-power of the utility model.
Fig. 3 is the structural representation of external shield of the magneto-dependent sensor of the diamagnetic attack of the related a kind of novel zero-power of the utility model.
Fig. 4 is the structural representation of sensor holder of the magneto-dependent sensor of the diamagnetic attack of the related a kind of novel zero-power of the utility model.
Fig. 5 is the outside drawing of the magneto-dependent sensor of the diamagnetic attack of the related a kind of novel zero-power of the utility model.
Fig. 6-1, Fig. 6-2, Fig. 6-3 are the perspective view (wherein, Fig. 6-1 is main cut-open view, and Fig. 6-2 is left cut-open view, and Fig. 6-3 is a vertical view) of the magneto-dependent sensor of the diamagnetic attack of the related a kind of novel zero-power of the utility model.
Wherein, 1 is the radome support, and 1-1 is ring groove I, 1-2 is ring groove II, and 1-3 is ring groove III, and 1-4 is a square opening, 1-5 is a bayonet socket, and 1-6 is a pilot hole, and 2 is external shield, 2-1 is a spherical surface body, and 2-2 is a quartern locating slot, and 2-3 is straight pawl, 2-4 is a four arcs, and 3 is the elasticity dottle pin, and 4 is middle radome, 5 is collapsible dist collar, 6 is inner shield, and 7 is sensor holder, and 7-1 is a mounting groove, 7-2 is a spring mounting hole, 7-3 is a claw, and 7-4 is a positioning cylinder, and 8 is zero-power magnetosensitive detecting element, 9 are printed board, and 10 is nonmagnetic spring.
(5) embodiment:
Embodiment: the magneto-dependent sensor of the diamagnetic attack of a kind of novel zero-power (seeing Fig. 1 to Fig. 6-3), it is characterized in that it is made of radome support 1, external shield 2, elasticity dottle pin 3, middle radome 4, collapsible dist collar 5, inner shield 6, sensor holder 7, zero-power magnetosensitive detecting element 8, printed board 9 and nonmagnetic spring 10, said zero-power magnetosensitive detecting element 8 is installed among the sensor holder 7 mounting groove 7-1; Said zero-power magnetosensitive detecting element 8 and sensor holder 7 are installed among the square opening 1-4 of radome support 1; There is a pair of claw 7-3 to snap among two bayonet socket 1-5 on the square opening 1-4 sidewall of radome support 1 on the said sensor holder 7; Said bayonet socket 1-5 is an oblong aperture; Said zero-power magnetosensitive detecting element 8 and sensor holder 7 can slide up and down in radome support 1 square opening 1-4; Said printed board 9 is installed in sensor holder 7 tops, according to a pair of positioning cylinder 7-4 location at sensor holder 7 tops; Said nonmagnetic spring 10 is a pair of, is installed in a pair of spring mounting hole 7-2 at sensor holder 7 tops, and spring top withstands on the inside surface top of inner shield 6, forms the elasticity follower; Ring groove I1-1, ring groove II1-2 and ring groove III1-3 are arranged on the said radome support 1, ring groove I1-1, ring groove II1-2 and ring groove III1-3 are that concentric distributes, be four sections discontinuous annulars, external shield 2, middle radome 4 and inner shield 6 are installed respectively; The four arcs 2-4 of said external shield 2, middle radome 4 and inner shield 6 is contained in respectively among four sections ring groove I1-1, the ring groove II1-2 and ring groove III1-3 of radome support 1, each radome bottom is useful on the quartern locating slot 2-2 of location and 4 straight pawl of the symmetry that is used for fixing, and is after the installation that straight pawl 2-3 bending and radome support 1 is fixing; Corresponding perforate is arranged at the top of said every layer of radome, and output signal cable is drawn by perforate successively; Said collapsible dist collar 5 is between inner shield 6 and middle radome 4, and elasticity dottle pin 3 is between middle radome 4 and external shield 2; Magnetic Sensor installing and locating hole 1-6 is arranged on the said radome support 1.
Claims (5)
1. the magneto-dependent sensor of the diamagnetic attack of novel zero-power, it is characterized in that it by the radome support, one deck radome, elasticity dottle pin, collapsible dist collar, sensor holder, zero-power magnetosensitive detecting element, printed board and nonmagnetic spring constitute at least, said zero-power magnetosensitive detecting element is installed in the sensor holder mounting groove; Said zero-power magnetosensitive detecting element and sensor holder are installed in the square opening of radome support; There is claw to snap in the bayonet socket on the square opening sidewall of radome support on the said sensor holder; Said bayonet socket is an oblong aperture; Said zero-power magnetosensitive detecting element and sensor holder can slide up and down in radome support square opening; Said printed board is installed in the sensor holder top, according to the positioning cylinder location at sensor holder top; Said nonmagnetic spring is installed in the spring mounting hole at sensor holder top, and spring top withstands on the inside surface top of inboard radome, forms the elasticity follower; On the said radome support at least one ring groove is arranged, each ring groove is separately installed with corresponding radome; Corresponding perforate is arranged at the top of said each layer radome, and output signal cable is drawn by perforate successively; Said elasticity dottle pin and collapsible dist collar are installed in different radome interlayers respectively.
2. according to the magneto-dependent sensor of the diamagnetic attack of the said a kind of novel zero-power of claim 1, it is characterized in that said each ring groove is that concentric distributes, and is four sections discontinuous annulars.
3. according to the magneto-dependent sensor of the diamagnetic attack of the said a kind of novel zero-power of claim 1, it is characterized in that said every layer of radome is shaped as with the centre of sphere equidistantly or the unequal-interval spherical surface body, each radome bottom is useful on the quartern locating slot of location, the straight pawl and the four arcs of the symmetry that is used for fixing; Said four arcs inserts in the ring groove corresponding with it of radome support; Said straight pawl bending and radome support are fixed.
4. according to the magneto-dependent sensor of the diamagnetic attack of the said a kind of novel zero-power of claim 1, it is characterized in that said ring groove is three, i.e. ring groove I, ring groove II and ring groove III; Said radome is three layers, i.e. external shield, middle radome and inner shield; Ring groove I on the said radome support, ring groove II and ring groove III are that concentric distributes, and are four sections discontinuous annulars, and external shield, middle radome and inner shield are installed respectively; The bottom of said external shield, middle radome and inner shield all is useful on the quartern locating slot of location, the straight pawl and the four arcs of the symmetry that is used for fixing; Said four arcs is contained in respectively among four sections ring groove I, the ring groove II and ring groove III of radome support; After the installation that straight pawl bending and radome support (1) is fixing; Corresponding perforate is arranged at the top of said every layer of radome, and output signal cable is drawn by perforate successively; Said collapsible dist collar (5) is between inner shield (6) and middle radome (4), and elasticity dottle pin (3) is between middle radome (4) and external shield (2).
5. according to the magneto-dependent sensor of the diamagnetic attack of the said a kind of novel zero-power of claim 1, it is characterized in that Magnetic Sensor installing and locating hole is arranged on the said radome support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206538941U CN201917345U (en) | 2010-12-10 | 2010-12-10 | Novel zero-power-consumption and magnetic-attack-resistance magneto-dependent sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206538941U CN201917345U (en) | 2010-12-10 | 2010-12-10 | Novel zero-power-consumption and magnetic-attack-resistance magneto-dependent sensor |
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| CN201917345U true CN201917345U (en) | 2011-08-03 |
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| CN2010206538941U Expired - Fee Related CN201917345U (en) | 2010-12-10 | 2010-12-10 | Novel zero-power-consumption and magnetic-attack-resistance magneto-dependent sensor |
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| CN (1) | CN201917345U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104569305A (en) * | 2014-12-22 | 2015-04-29 | 苏州工业园区传世汽车电子有限公司 | Gas sensor triple protection cover |
| CN104748768A (en) * | 2015-03-12 | 2015-07-01 | 常州大学 | Angular position detection device and detection method thereof |
| CN104809957A (en) * | 2015-04-27 | 2015-07-29 | 北海和思科技有限公司 | Advertising machine |
| CN105784025A (en) * | 2016-04-20 | 2016-07-20 | 镭蒙(宁波)股份有限公司 | Electronic water meter with improved structure |
| CN106933085A (en) * | 2017-03-22 | 2017-07-07 | 宝柏时计有限公司 | Antimagnetic quartzy hand-manipulating of needle wrist-watch |
| CN107064593A (en) * | 2017-06-14 | 2017-08-18 | 电子科技大学 | A kind of electronic mutual inductor suitable for gas insulated transformer substation Super-Current Measurement |
| CN107764352A (en) * | 2017-10-16 | 2018-03-06 | 南京艾驰电子科技有限公司 | Passive flow monitoring device and method |
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| CN115388923A (en) * | 2022-09-19 | 2022-11-25 | 嘉兴博创智能传感科技有限公司 | Intelligent sensor with good diamagnetic performance |
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2010
- 2010-12-10 CN CN2010206538941U patent/CN201917345U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104569305A (en) * | 2014-12-22 | 2015-04-29 | 苏州工业园区传世汽车电子有限公司 | Gas sensor triple protection cover |
| CN104748768A (en) * | 2015-03-12 | 2015-07-01 | 常州大学 | Angular position detection device and detection method thereof |
| CN104809957B (en) * | 2015-04-27 | 2018-01-19 | 江苏智慧优视电子科技有限公司 | A kind of advertisement machine |
| CN104809957A (en) * | 2015-04-27 | 2015-07-29 | 北海和思科技有限公司 | Advertising machine |
| CN105784025A (en) * | 2016-04-20 | 2016-07-20 | 镭蒙(宁波)股份有限公司 | Electronic water meter with improved structure |
| CN105784025B (en) * | 2016-04-20 | 2022-12-02 | 镭蒙(宁波)股份有限公司 | Electronic water meter with improved structure |
| CN106933085A (en) * | 2017-03-22 | 2017-07-07 | 宝柏时计有限公司 | Antimagnetic quartzy hand-manipulating of needle wrist-watch |
| CN107064593A (en) * | 2017-06-14 | 2017-08-18 | 电子科技大学 | A kind of electronic mutual inductor suitable for gas insulated transformer substation Super-Current Measurement |
| CN107064593B (en) * | 2017-06-14 | 2019-05-28 | 电子科技大学 | A kind of electronic mutual inductor suitable for gas insulated transformer substation Super-Current Measurement |
| CN107764352A (en) * | 2017-10-16 | 2018-03-06 | 南京艾驰电子科技有限公司 | Passive flow monitoring device and method |
| CN109986248A (en) * | 2019-04-30 | 2019-07-09 | 宁夏吴忠市好运电焊机有限公司 | The mating high frequency furnace preheating device of welding robot for thick-walled vessel welding |
| CN109986248B (en) * | 2019-04-30 | 2024-05-31 | 宁夏吴忠市好运电焊机有限公司 | Welding robot matched high-frequency electric furnace preheating device for welding thick-wall container |
| CN115388923A (en) * | 2022-09-19 | 2022-11-25 | 嘉兴博创智能传感科技有限公司 | Intelligent sensor with good diamagnetic performance |
| CN115388923B (en) * | 2022-09-19 | 2023-12-19 | 深圳市威纳智能科技有限公司 | Intelligent sensor with good antimagnetic performance |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20131210 |