CN102095519A - Magnetic resistive (MR) magnetic sensitive temperature sensor - Google Patents
Magnetic resistive (MR) magnetic sensitive temperature sensor Download PDFInfo
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- CN102095519A CN102095519A CN 201110029157 CN201110029157A CN102095519A CN 102095519 A CN102095519 A CN 102095519A CN 201110029157 CN201110029157 CN 201110029157 CN 201110029157 A CN201110029157 A CN 201110029157A CN 102095519 A CN102095519 A CN 102095519A
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Abstract
The invention discloses a magnetic resistive (MR) magnetic sensitive temperature sensor. The MR magnetic sensitive temperature sensor comprises a shell; a control circuit, an MR element, a temperature sensitive ferrite and a permanent magnet ferrite are arranged in the shell; and the control circuit is connected with the MR element which is matched with the temperature sensitive ferrite and the permanent magnet ferrite. The MR magnetic sensitive temperature sensor has the advantages of long service life, stable and reliable performance, high flexibility and the like.
Description
Technical field
The present invention relates to a kind of sensor, more particularly, relate to a kind of MR magnetosensitive temperature sensor.
Background technology
Sensor has number of different types, and temperature sensor is one of them.Magnetic temperature sensor in the market utilizes magnet polarity to realize the sensing effect more, and it is had relatively high expectations to putting, and uses dumb.Do not see long service life, reliable and stable, highly sensitive temperature sensor on the market as yet.
Summary of the invention
Technical matters to be solved by this invention provides a kind of long service life, stable and reliable for performance, highly sensitive MR magnetosensitive temperature sensor.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of MR magnetosensitive temperature sensor comprises housing; Be provided with control circuit, MR element, temperature sensitive ferrite, permanent-magnet ferrite in described housing, described control circuit is connected with the MR element, and the MR element matches with temperature sensitive ferrite, permanent-magnet ferrite respectively.
The present invention is owing to adopted said structure, by the MR element magnetic field rather than magnetic pole are responded, so as long as the MR sensor can receive certain magnetic flux, its magnetic resistance will change, to impel control circuit to produce a corresponding signal, therefore, the present invention is highly sensitive and stable and reliable for performance, in addition, long service life of the present invention.
After the detailed description of reading embodiments of the present invention in conjunction with the accompanying drawings, it is clearer that characteristics of the present invention and advantage will become.
Description of drawings
Fig. 1 is the cut-open view of embodiments of the invention one;
Fig. 2 is the cut-open view of embodiments of the invention two;
Fig. 3 is the cut-open view of embodiments of the invention three;
Fig. 4 is the cut-open view of embodiments of the invention four;
Fig. 5 is the cut-open view of embodiments of the invention five;
Fig. 6 is the cut-open view of embodiments of the invention six.
Wherein: 10. housing, 20. control circuits, 30.MR element, 40. temperature sensitive ferrites, 50. permanent-magnet ferrites, 60. electric wires.
Embodiment
The present invention is further detailed explanation with an embodiment below, but should illustrate that protection scope of the present invention is not limited only to this.
Embodiment one:
Consult Fig. 1, a kind of MR magnetosensitive temperature sensor comprises housing 10; Be provided with control circuit 20, MR element 30, temperature sensitive ferrite 40, permanent-magnet ferrite 50 in housing 10, described control circuit 20 is connected with MR element 30, and MR element 30 matches with temperature sensitive ferrite 40, permanent-magnet ferrite 50 respectively.
When present embodiment is used, variation by MR element 30 induction permanent-magnet ferrites 50 magnetic fields and the temperature information that receives temperature sensitive ferrite 40 transmit the associated temperature control signal and give control circuit 20, realize sending the temperature sense information by control circuit 20 again and get final product to relevant device.
Embodiment two:
Consult Fig. 2, the key distinction of present embodiment and embodiment one is; The shape of the housing 10 of present embodiment is different with embodiment's one, and also different with embodiment one of the position of temperature sensitive ferrite 40, permanent-magnet ferrite 50.Its function and effect are constant.
Embodiment three:
Consult Fig. 3, the key distinction of present embodiment and embodiment one is; The shape of the housing 10 of present embodiment is different with embodiment's one, and also different with embodiment one of the position of temperature sensitive ferrite 40, permanent-magnet ferrite 50.Its function and effect are constant.
Embodiment four:
Consult Fig. 4, the key distinction of present embodiment and embodiment one is; The shape of the housing 10 of present embodiment is different with embodiment's one, and also different with embodiment one of the position of temperature sensitive ferrite 40, permanent-magnet ferrite 50.Its function and effect are constant.
Embodiment five:
Consult Fig. 5, the key distinction of present embodiment and embodiment one is; The shape of the housing 10 of present embodiment is different with embodiment's one, and also different with embodiment one of the position of temperature sensitive ferrite 40, permanent-magnet ferrite 50.Its function and effect are constant.
Embodiment six:
Consult Fig. 6, the key distinction of present embodiment and embodiment one is; The shape of the housing 10 of present embodiment is different with embodiment's one, and also different with embodiment one of the position of temperature sensitive ferrite 40, permanent-magnet ferrite 50.Its function and effect are constant.
Though described embodiments of the present invention in conjunction with the accompanying drawings; but those skilled in the art can make various distortion or modification within the scope of the appended claims; as long as be no more than the described protection domain of claim of the present invention, all should be within protection scope of the present invention.
Claims (1)
1. a MR magnetosensitive temperature sensor comprises housing (10); It is characterized in that: in described housing (10), be provided with control circuit (20), MR element (30), temperature sensitive ferrite (40), permanent-magnet ferrite (50), described control circuit (20) is connected with MR element (30), and MR element (30) matches with temperature sensitive ferrite (40), permanent-magnet ferrite (50) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110029157 CN102095519A (en) | 2011-01-26 | 2011-01-26 | Magnetic resistive (MR) magnetic sensitive temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110029157 CN102095519A (en) | 2011-01-26 | 2011-01-26 | Magnetic resistive (MR) magnetic sensitive temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102095519A true CN102095519A (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110029157 Pending CN102095519A (en) | 2011-01-26 | 2011-01-26 | Magnetic resistive (MR) magnetic sensitive temperature sensor |
Country Status (1)
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| CN (1) | CN102095519A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050077890A1 (en) * | 2003-10-09 | 2005-04-14 | Rannow Randy K. | Multiplexed dual-purpose magnetoresistive sensor and method of measuring current and temperature |
| CN101416040A (en) * | 2006-03-30 | 2009-04-22 | 皇家飞利浦电子股份有限公司 | Magnetoresistive sensor as temperature sensor |
| CN201273846Y (en) * | 2008-09-02 | 2009-07-15 | 西安交通大学 | Temperature measurement apparatus based on giant magnet effect |
| CN201408092Y (en) * | 2009-03-30 | 2010-02-17 | 自贡市三人实业有限公司 | Parallel groove clamp type automatic temperature measuring device |
| CN201926522U (en) * | 2011-01-26 | 2011-08-10 | 佛山市川东热敏磁电有限公司 | MR (magnetic resonance) magnetic-sensitive temperature transducer |
-
2011
- 2011-01-26 CN CN 201110029157 patent/CN102095519A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050077890A1 (en) * | 2003-10-09 | 2005-04-14 | Rannow Randy K. | Multiplexed dual-purpose magnetoresistive sensor and method of measuring current and temperature |
| CN101416040A (en) * | 2006-03-30 | 2009-04-22 | 皇家飞利浦电子股份有限公司 | Magnetoresistive sensor as temperature sensor |
| CN201273846Y (en) * | 2008-09-02 | 2009-07-15 | 西安交通大学 | Temperature measurement apparatus based on giant magnet effect |
| CN201408092Y (en) * | 2009-03-30 | 2010-02-17 | 自贡市三人实业有限公司 | Parallel groove clamp type automatic temperature measuring device |
| CN201926522U (en) * | 2011-01-26 | 2011-08-10 | 佛山市川东热敏磁电有限公司 | MR (magnetic resonance) magnetic-sensitive temperature transducer |
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Application publication date: 20110615 |