JPH02168129A - Detecting method for temperature, detecting element of temperature and apparatus therefor - Google Patents
Detecting method for temperature, detecting element of temperature and apparatus thereforInfo
- Publication number
- JPH02168129A JPH02168129A JP32392688A JP32392688A JPH02168129A JP H02168129 A JPH02168129 A JP H02168129A JP 32392688 A JP32392688 A JP 32392688A JP 32392688 A JP32392688 A JP 32392688A JP H02168129 A JPH02168129 A JP H02168129A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- magnetic core
- magnetization
- electromagnetic induction
- change
- 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
- 238000000034 method Methods 0.000 title description 9
- 230000005415 magnetization Effects 0.000 claims abstract description 13
- 239000000696 magnetic material Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005674 electromagnetic induction Effects 0.000 abstract description 17
- 239000000835 fiber Substances 0.000 abstract description 6
- 239000011521 glass Substances 0.000 abstract description 6
- 229910000676 Si alloy Inorganic materials 0.000 abstract description 3
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract 3
- 239000004020 conductor Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 230000005678 Seebeck effect Effects 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- -1 iron-silicon-aluminum Chemical compound 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、温度検知法（測温方法）と温度検知素子（温
度センサー）に関し、さらに詳しくは電磁誘導を利用し
て温度を測定する方法と小型の温度センサーに関するも
のである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a temperature detection method (temperature measurement method) and a temperature detection element (temperature sensor), and more specifically, a method of measuring temperature using electromagnetic induction. and related to small temperature sensors.
（従来の技術）
被測温体の温度を測定する方法とそれを具体化する素子
、器具、機械として、水銀、アルコールの温度による（
熱による）膨張を利用する方法とその具体化素子として
の水銀温度計、アルコール温度計等がある。またバイメ
タルのように温度による固体の体積変化を利用するもの
、熱電対のようにゼーベック効果を利用するもの、放射
温度計、色温度計のように物体の熱せられることにより
発する放射エネルギーを検知して物体の温度を測定する
もの、サーミスターのように電気抵抗値の温度依存性を
利用するもの等が知られている。また磁性を利用した提
案もあり、それらは磁性の、２１度による変化、また磁
石（磁性体）のキューリー点の特異的変化を利用したス
ウィッチ等が知られている。(Prior art) A method for measuring the temperature of a body to be measured and elements, instruments, and machines that embody it are based on the temperature of mercury and alcohol (
There are methods that utilize expansion (due to heat) and devices that embody this method, such as mercury thermometers and alcohol thermometers. In addition, there are devices such as bimetals that utilize the volume change of a solid due to temperature, thermocouples that utilize the Seebeck effect, and radiation thermometers and color thermometers that detect the radiant energy emitted when an object is heated. Some are known to measure the temperature of an object, while others, such as thermistors, utilize the temperature dependence of electrical resistance. There are also proposals that utilize magnetism, such as switches that utilize a change in magnetism due to 21 degrees or a specific change in the Curie point of a magnet (magnetic material).
（発明の解決しようとする課題）
本発明は、前記従来の例にない新しい温度検知方法によ
る、小型化可能で、安価にして操作性にすぐれた温度検
知素子および装置を提供せんとするものである。(Problems to be Solved by the Invention) The present invention aims to provide a temperature sensing element and device that can be miniaturized, are inexpensive, and have excellent operability, using a new temperature sensing method not found in the conventional examples. be.
（課題を解決するための手段）
すなわち、本発明は、磁芯が軟磁性物質であり、該磁芯
に絶縁導電線を複数回捲回した素子を用いて、該磁芯に
所定の磁化の変化を与え、この磁化の変化によって生ず
る誘起電圧を被測温体の温度に応じた値として感知する
ことで、被測温体の温度を検知することを特徴とする温
度検知方法であり、軟磁性物質を磁芯とし、該磁芯に導
電線を複数回捲回した温度検知素子であり、この温度検
知素子、該温度検知素子に所定の磁化の変化を与える要
素、該２２度検知素子からの誘起電圧を感知する要素を
備えたことを特徴とする温度検知装置である。(Means for Solving the Problems) That is, the present invention uses an element in which the magnetic core is a soft magnetic material and an insulated conductive wire is wound around the magnetic core a plurality of times, and the magnetic core is provided with a predetermined magnetization. This is a temperature sensing method characterized by detecting the temperature of the object to be measured by applying a change in magnetization and sensing the induced voltage generated by this change in magnetization as a value corresponding to the temperature of the object to be measured. A temperature sensing element in which a magnetic material is used as a magnetic core and a conductive wire is wound around the magnetic core multiple times, and this temperature sensing element, an element that gives a predetermined change in magnetization to the temperature sensing element, and the 22 degree sensing element. This is a temperature sensing device characterized by comprising an element that senses the induced voltage of the temperature sensor.
本発明における軟磁性の磁芯としては、特に限定はされ
ないが、交番磁界の印加等により、捲き回されたコイル
に電磁誘導電圧が発生するものでなくではならず、該電
磁誘導電圧が、温度との間に一価関数で表現できる関係
となるものが好ましい。この軟磁性の磁芯として、具体
的には、鉄を主体とする合金からなる結晶質のものが好
ましく、さらに好ましくは、前記軟磁性の結晶質である
鉄合金の繊維状物である。繊維状物とは、直径（または
代表径）が５〜２０００μｍのものであり、かつその長
さが２１１１１以上のものであり、好ましくは直径が２
０〜５００μｍ１長さが１０！ＩＩＢ以上のもの、さら
に好ましくは直径が５０〜１００μＩｎ １長さが１０
龍以上のものである。鉄を主体とする合金としては、鉄
−シリコン系合金、鉄−アルミニウム系合金、鉄−シリ
コン−アルミニウム系合金等が挙げられ、これらの合金
系に必要に応じて第３の元素、第４の元素を添加含有せ
しめてもよく、さらには不可避不純物が含まれてもよい
。Although the soft magnetic core in the present invention is not particularly limited, it is inevitable that electromagnetic induction voltage will be generated in the wound coil by application of an alternating magnetic field, etc., and the electromagnetic induction voltage will be It is preferable that there is a relationship between them that can be expressed by a single-valued function. Specifically, the soft magnetic core is preferably a crystalline core made of an alloy mainly composed of iron, and more preferably a fibrous material of the soft magnetic crystalline iron alloy. The fibrous material is one with a diameter (or representative diameter) of 5 to 2000 μm and a length of 21111 or more, preferably 21111 or more in diameter.
0 to 500 μm 1 length is 10! IIB or more, more preferably a diameter of 50 to 100 μIn 1 and a length of 10
It's more than a dragon. Examples of alloys mainly composed of iron include iron-silicon alloys, iron-aluminum alloys, iron-silicon-aluminum alloys, etc. These alloys may optionally contain a third element or a fourth element. Elements may be added or unavoidable impurities may be included.
本発明に用いられる、磁芯に捲回する導電線は銅、アル
ミニウム、金、白金、銀等の電導性にすぐれた素材の細
線であり、絶縁導電線とは、この前記導電、腺に電気絶
隊性物の被覆を施したものである。本発明における磁芯
への磁化の変化を与える方法、手段としては、磁芯に導
電線を捲回した素子と一体化した、例えば交番磁界を印
加しうる要素でもよいし、測温体にとりつけられた例え
ば交番磁界を与える等の磁化手段を用いてもよい。The conductive wire used in the present invention, which is wound around the magnetic core, is a thin wire made of a material with excellent conductivity such as copper, aluminum, gold, platinum, or silver. It is coated with an extremely dangerous material. In the present invention, the method and means for applying a change in magnetization to the magnetic core may be an element that is integrated with an element in which a conductive wire is wound around the magnetic core and that can apply an alternating magnetic field, or an element that is attached to a temperature measuring body. For example, magnetization means such as applying an alternating magnetic field may be used.
軟磁性物質は外部磁場により極めて容易に（ＩＩｉ化さ
れる、軟磁性物質の磁芯のまわりにコイルを配して、外
部磁場の変化に伴う磁芯の磁化の変化をその時間微分の
形でコイルから誘起電圧として感知することができる。Soft magnetic materials are extremely easily converted to IIi by an external magnetic field.By placing a coil around the magnetic core of the soft magnetic material, we can measure changes in the magnetization of the magnetic core due to changes in the external magnetic field in the form of its time differential. It can be sensed as an induced voltage from the coil.
結晶磁気異方性、誘１＋’ｆｆ率、磁歪定数が温度依存
性を有する軟磁性物質を磁芯に使用すれば、誘起電圧が
温度により一定の変化をすることを予め検定してお（こ
とで、誘起電圧を検知することで、被測温体の温度を知
ることができる。以下、実施例により本発明を具体的に
説明するが、本発明はこれらになんら限定されるもので
はない。If a soft magnetic material whose magnetocrystalline anisotropy, dielectric constant, and magnetostriction constant are temperature-dependent is used for the magnetic core, it must be verified in advance that the induced voltage changes to a certain degree with temperature. By detecting the induced voltage, it is possible to know the temperature of the object to be measured.The present invention will be specifically described below with reference to Examples, but the present invention is not limited thereto.
（実施例）
〔実施例１〕
軟磁気特性を有する鉄系合金として鉄−シリコン合金を
加工し、直径１００１．Ｌｍの結晶質金属繊維を得た。(Example) [Example 1] An iron-silicon alloy was processed as an iron-based alloy having soft magnetic properties, and a diameter of 1,001. A crystalline metal fiber of Lm was obtained.
次いで得られた繊維を５０１１Ｉｍにカットし、ガラス
管内に封印し、該ガラス管に１０００ターンのコイルと
なるように、絶縁導電線を巻き電磁誘導ピップアップと
した。得られた電磁誘導ピンクアップの構成図を第１図
に示す。得られた電磁誘導ピックアップの出力電圧の温
度特性を実効２エルステツドの交番磁界を印加しながら
測定した。温度に対する出力電圧を第２図に示す。温度
に対し出力電圧は一価関数となり、すなわち本電磁誘導
ピックアップが「温度センサー」として機能することが
これにより示された。Next, the obtained fiber was cut into a length of 5011 Im, sealed in a glass tube, and an insulated conductive wire was wound around the glass tube to form a 1000-turn coil as an electromagnetic induction pip-up. A block diagram of the obtained electromagnetic induction pink-up is shown in FIG. The temperature characteristics of the output voltage of the obtained electromagnetic induction pickup were measured while applying an effective alternating magnetic field of 2 oersteds. Figure 2 shows the output voltage versus temperature. This shows that the output voltage is a monovalent function with respect to temperature, that is, the present electromagnetic induction pickup functions as a "temperature sensor."
〔実施例２〕
磁歪を有し、磁歪定数が温度に依存する特性を有する軟
磁性材料である鉄−アルミニウム合金を加工し直径８０
μｍの結晶質金属繊維を得た。次いで得られた繊維を３
０ 、、長にカットし、エポキシ樹脂にてガラス管内に
封入し、該ガラス管に１０００ターンの絶縁導電線を巻
き電磁誘導ピックアップとした。得られた電磁誘導ピッ
クアップの構成図を第３図にしめす。得られた電磁誘導
ピックアップの出力電圧の温度特性を実効２エルステツ
ドの交番磁界を印加しながら測定した。温度に対する出
力電圧を第４図に示す。温度に対し出力電圧は一価関数
となり、すなわち本電磁誘導ピックアップが「温度セン
サー」として機能することがこれにより示された。[Example 2] An iron-aluminum alloy, which is a soft magnetic material having magnetostriction and a property that the magnetostriction constant depends on temperature, was processed to a diameter of 80 mm.
A micrometer crystalline metal fiber was obtained. Then, the obtained fiber was
The sample was cut into a length of 0.0, and sealed in a glass tube with epoxy resin, and the glass tube was wrapped with 1000 turns of insulated conductive wire to form an electromagnetic induction pickup. The configuration diagram of the obtained electromagnetic induction pickup is shown in Fig. 3. The temperature characteristics of the output voltage of the obtained electromagnetic induction pickup were measured while applying an effective alternating magnetic field of 2 oersteds. Figure 4 shows the output voltage versus temperature. This shows that the output voltage is a monovalent function with respect to temperature, that is, the present electromagnetic induction pickup functions as a "temperature sensor."
（発明の効果）
本発明における温度検知方法と温度検知素子、および温
度検知装置は、小型で、操作性にすぐれた温度計、断電
器、スウインチ等の温度を検知して他の機能を電気的に
利用、作動、感知するものに広く応用できることがわか
った。(Effects of the Invention) The temperature detection method, temperature detection element, and temperature detection device of the present invention are small and easy to operate, detecting the temperature of a thermometer, a disconnector, a switch, etc., and performing other functions electrically. It was found that it can be widely applied to things that are used, operated, and sensed.
第１図は、実施例１に示した電磁誘導ピックアップの構
成概略図である。
第２図は、実施例１に示した電磁誘導ピックアップの温
度−出力電磁特性を示す図である。
［縦軸は出力（誘起）電圧、横軸は温度］第３図は、実
施例２に示した電磁誘導ピックアップの構成（概略）図
であり、第４図は実施例２で示した電磁誘導ピックアッ
プの温度−出力電圧特性を示す図である。（縦軸、横軸
は第２図に同じである。）FIG. 1 is a schematic diagram of the configuration of the electromagnetic induction pickup shown in Example 1. FIG. 2 is a diagram showing the temperature-output electromagnetic characteristics of the electromagnetic induction pickup shown in Example 1. [The vertical axis is the output (induced) voltage, and the horizontal axis is the temperature] Figure 3 is a configuration (schematic) diagram of the electromagnetic induction pickup shown in Example 2, and Figure 4 is the electromagnetic induction pickup shown in Example 2. FIG. 3 is a diagram showing the temperature-output voltage characteristics of the pickup. (The vertical and horizontal axes are the same as in Figure 2.)
Claims (3)
複数回捲回した素子を用いて、該磁芯に所定の磁化の変
化を与え、この磁化の変化によって生ずる誘起電圧を被
測温体の温度に応じた値として感知することで、被測温
体の温度を検知することを特徴とする温度検知方法。(1) Using an element in which the magnetic core is a soft magnetic material and an insulated conductive wire is wound multiple times around the magnetic core, a predetermined change in magnetization is applied to the magnetic core, and an induced voltage is generated by this change in magnetization. A temperature detection method characterized in that the temperature of a temperature-measuring object is detected by sensing as a value corresponding to the temperature of the temperature-measuring object.
捲回した温度検知素子。(2) A temperature sensing element in which a soft magnetic material is used as a magnetic core and a conductive wire is wound around the magnetic core multiple times.
所定の磁化の変化を与える要素、該温度検知素子からの
誘起電圧を感知する要素を備えたことを特徴とする温度
検知装置。(3) A temperature sensing device comprising the temperature sensing element according to claim (2), an element that imparts a predetermined change in magnetization to the temperature sensing element, and an element that senses an induced voltage from the temperature sensing element. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32392688A JPH02168129A (en) | 1988-12-22 | 1988-12-22 | Detecting method for temperature, detecting element of temperature and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32392688A JPH02168129A (en) | 1988-12-22 | 1988-12-22 | Detecting method for temperature, detecting element of temperature and apparatus therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02168129A true JPH02168129A (en) | 1990-06-28 |
Family
ID=18160169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32392688A Pending JPH02168129A (en) | 1988-12-22 | 1988-12-22 | Detecting method for temperature, detecting element of temperature and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02168129A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857607A (en) * | 2021-01-13 | 2021-05-28 | 深圳市汇北川电子技术有限公司 | A miniaturized dysmorphism temperature sensor for flat wire motor temperature measurement |
-
1988
- 1988-12-22 JP JP32392688A patent/JPH02168129A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857607A (en) * | 2021-01-13 | 2021-05-28 | 深圳市汇北川电子技术有限公司 | A miniaturized dysmorphism temperature sensor for flat wire motor temperature measurement |
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