JPH0476425A - Ferromagnetic temperature sensor - Google Patents
Ferromagnetic temperature sensorInfo
- Publication number
- JPH0476425A JPH0476425A JP19106490A JP19106490A JPH0476425A JP H0476425 A JPH0476425 A JP H0476425A JP 19106490 A JP19106490 A JP 19106490A JP 19106490 A JP19106490 A JP 19106490A JP H0476425 A JPH0476425 A JP H0476425A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- temperature sensor
- magnetic field
- superconducting
- external magnetic
- 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
- 230000005294 ferromagnetic effect Effects 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000004593 Epoxy Substances 0.000 abstract description 6
- 239000004020 conductor Substances 0.000 abstract description 6
- 229910020012 Nb—Ti Inorganic materials 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 3
- 239000001307 helium Substances 0.000 abstract description 2
- 229910052734 helium Inorganic materials 0.000 abstract description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000002887 superconductor Substances 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract 2
- 229920000647 polyepoxide Polymers 0.000 abstract 2
- 230000005540 biological transmission 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 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910001179 chromel Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002356 single layer 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Ｊ
本発明は、超電導発電機、リニアモータカー、素粒子加
速器などのような、強磁界を用いる環境下での温度計測
に用いられる強磁界温度センサに関するものである。Detailed Description of the Invention "Industrial Application Field J The present invention relates to a strong magnetic field temperature sensor used for temperature measurement in environments using strong magnetic fields, such as superconducting generators, linear motor cars, particle accelerators, etc. It is related to.
「従来の技術」
通常、工業的に使用される温度センサとしては、金・鉄
／クロメルなどの熱電対、Ｐｔ−Ｃｏなどの測温抵抗体
、サーミスタ、容量型温度センサなどがあげられるが、
いずれも電気的に温度を計測するため、強磁界環境下で
は誤差を生じる。その欠点を除くため、特に極低温を測
る温度センサ素子および／又は導線部の周囲の一部もし
くは全部を、超電導材（Ｎｂ−Ｔｉなどの合金、酸化物
超電導体など）で覆う磁気シールド付温度センサが従来
用いられている。この温度センサで超電導材の臨界温度
以下を計測すると、超電導材が超電導状態となり、マイ
スナー効果によって外部の磁場を排除するため温度セン
サ素子もしくは導線部に、磁界が印加されず誤差を生じ
ないで温度を計測できる。"Prior Art" Temperature sensors normally used industrially include thermocouples made of gold/iron/chromel, resistance temperature detectors such as Pt-Co, thermistors, capacitive temperature sensors, etc.
Since both measure temperature electrically, errors occur in environments with strong magnetic fields. In order to eliminate this drawback, a magnetic shield is provided to cover part or all of the periphery of the temperature sensor element and/or the conductor part that measures extremely low temperatures with a superconducting material (alloy such as Nb-Ti, oxide superconductor, etc.). Sensors are conventionally used. When this temperature sensor measures a temperature below the critical temperature of the superconducting material, the superconducting material enters a superconducting state, and the Meissner effect eliminates external magnetic fields. can be measured.
この従来技術の一例を第３図に示すと、超電導材（Ｎｂ
−Ｔｉ合金）のキャップ１の中にＨｅガス４を封入して
、極低温での熱伝達を維持しつつ、ｐｔＣｏ測温抵抗体
６を挿入して、キャップ１の開口をエポキシ封止２する
。ＰＬ−Ｃｏ測温抵抗体６の２本の導線に、各々もう１
本の導線を接続した４本のＮｉ導線３が、エポキシ封止
２を貫通している。この温度センサ７で外部磁界Ｈ中に
てＮｂ−Ｔｉ合金の臨界温度以下を計測すると、マイス
ナー効果により、キャップ１は外部磁界Ｈを排除して、
磁界Ｈをキャップ１内に侵入させないため、Ｐｔ−Ｃｏ
測温抵抗体６および導線３のキャップ１内には外部磁界
Ｈが印加されず温度測定誤差を生じない。An example of this conventional technology is shown in FIG. 3, where superconducting material (Nb
- He gas 4 is sealed in a cap 1 made of (Ti alloy), and while maintaining heat transfer at extremely low temperatures, a ptCo resistance temperature detector 6 is inserted, and the opening of the cap 1 is sealed with epoxy 2. . Connect another wire to each of the two conductors of the PL-Co resistance temperature detector 6.
Four Ni conductive wires 3 to which two conductive wires are connected pass through the epoxy seal 2. When this temperature sensor 7 measures a temperature below the critical temperature of the Nb-Ti alloy in an external magnetic field H, the cap 1 eliminates the external magnetic field H due to the Meissner effect.
In order to prevent the magnetic field H from entering the cap 1, Pt-Co
No external magnetic field H is applied to the cap 1 of the resistance temperature detector 6 and the conducting wire 3, and no temperature measurement error occurs.
「実施例」
従来技術では、寸法形状の異なる各種温度センサごとに
、その寸法に適合した超電導材のキャップやシース、カ
バーなどを作らねばならず、量産ができないため、コス
ト的に高価となり、製作日数も長くなる。``Example'' With conventional technology, caps, sheaths, covers, etc. made of superconducting material that match the dimensions must be made for each temperature sensor with different dimensions and shapes, which cannot be mass-produced, resulting in high costs and production costs. The days will also be longer.
本発明では、その欠点を除くために、フレキシブルで適
当な太さの超電導線材、もしくは超電導リボン材を用い
て、各種温度センサの素子部、導線部などの一部もしく
は全部に巻きつけることにより、同一の太さの超電導線
材、リボン材を用いて、さまざまに異なる寸法形状を有
する温度センサに、磁気シールドを安価に短納期で施す
ことのできるようにする。In order to eliminate this drawback, the present invention uses a flexible superconducting wire or superconducting ribbon material of an appropriate thickness and wraps it around part or all of the element part, conducting wire part, etc. of various temperature sensors. To provide magnetic shielding to temperature sensors having various sizes and shapes at low cost and in a short delivery time using superconducting wires and ribbon materials of the same thickness.
この超電導線材は、Ｎｂ−Ｔｉ合金にＣｕ被覆を施した
線材もしくは酸化物超電導線材をＡｇ被覆で覆ったリボ
ン材のような、通常、電流を流すために用いられる超電
導線材でもかまわないし、超電導のみで構成される線材
やリボン材でもかまわない。This superconducting wire may be a superconducting wire that is normally used to conduct current, such as a wire made of Nb-Ti alloy coated with Cu or a ribbon material made of oxide superconducting wire covered with Ag, or it may be a superconducting wire that is only used for superconducting. A wire or ribbon material composed of may also be used.
温度センサへの超電導線材、リボン材の巻きつけは一層
であっても多層であってもよい。The superconducting wire or ribbon material may be wound around the temperature sensor in a single layer or in multiple layers.
第１図および第２図に示す具体的な一実施例により本発
明の詳細な説明する。The present invention will be explained in detail with reference to a specific embodiment shown in FIGS. 1 and 2.
Ｐｔ Ｃｏ測温抵抗体１０は、極低温での熱伝達を確
保する）Ｉｅガス１３の充填したＳＯＳキャンプ１４に
、エポキシ封止１２で固定される。エポキシ封止１２を
４本のＮｉ導線１１が貫通している４導線式となってい
る。ＳＵＳキャップ１４を、Ｎｂ−Ｔｉ合金の超電導線
材１５を一層に巻きつけて覆い、エポキシ１６を塗布し
て、５ＬＩＳキヤツプ１４に超電導線材１５を固定する
。The Pt Co resistance temperature detector 10 is fixed with an epoxy seal 12 in an SOS camp 14 filled with Ie gas 13 (which ensures heat transfer at cryogenic temperatures). It is a four-conductor type in which four Ni conductors 11 pass through the epoxy seal 12. The SUS cap 14 is covered with a layer of Nb-Ti alloy superconducting wire 15, and epoxy 16 is applied to fix the superconducting wire 15 to the 5LIS cap 14.
この温度センサ１７を液体ヘリウム温度近辺まで冷却す
ると、超電導線材１５が超電導状態となり、マイスナー
効果により、外部磁界■１をシールドするため、測温抵
抗体１０は外部磁界Ｈの影響を受けず、誤差なしに温度
計測できる。When this temperature sensor 17 is cooled to around the temperature of liquid helium, the superconducting wire 15 becomes superconducting, and the Meissner effect shields the external magnetic field (1), so the resistance temperature detector 10 is not affected by the external magnetic field H, and the error Temperature can be measured without
「発明の効果」
本発明は、上述のように、温度センサの周囲の一部また
は全部を超電導材質の線材もしくはりボン材で巻いてな
る強磁界温度センサであり、フレキシブルな超電導材質
の線材をもしくはリボン材を用いるので、さまざまに異
なる寸法形状を有する温度センサの磁気シールドとして
用いることができ、安価に短納期で強磁界温度センサの
提供ができる。"Effects of the Invention" As described above, the present invention is a strong magnetic field temperature sensor in which a part or all of the periphery of the temperature sensor is wrapped with a wire made of a superconducting material or a carbon material. Alternatively, since a ribbon material is used, it can be used as a magnetic shield for temperature sensors having various sizes and shapes, and a strong magnetic field temperature sensor can be provided at low cost and in a short delivery time.
第１図は本発明の具体的な一実施例の縦断面図、第２図
は第１図の左側面図、第３図は従来例の縦断面図である
。
１０・・・測温抵抗体（温度センサの例）１５・・・超
電導線材FIG. 1 is a vertical sectional view of a specific embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is a vertical sectional view of a conventional example. 10...Resistance temperature sensor (example of temperature sensor) 15...Superconducting wire
Claims (1)
質の線材もしくはリボン材で巻いてなる強磁界温度セン
サ。(1) A strong magnetic field temperature sensor in which a part or all of the periphery of the temperature sensor is wrapped with a wire or ribbon made of a superconducting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19106490A JPH0476425A (en) | 1990-07-18 | 1990-07-18 | Ferromagnetic temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19106490A JPH0476425A (en) | 1990-07-18 | 1990-07-18 | Ferromagnetic temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476425A true JPH0476425A (en) | 1992-03-11 |
Family
ID=16268281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19106490A Pending JPH0476425A (en) | 1990-07-18 | 1990-07-18 | Ferromagnetic temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018091642A (en) * | 2016-11-30 | 2018-06-14 | 株式会社チノー | Sheath type temperature measuring resistor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01219527A (en) * | 1988-02-29 | 1989-09-01 | Toshiba Corp | Resistance thermometer |
| JPH0239105A (en) * | 1988-07-29 | 1990-02-08 | Nissha Printing Co Ltd | Production of color filter |
-
1990
- 1990-07-18 JP JP19106490A patent/JPH0476425A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01219527A (en) * | 1988-02-29 | 1989-09-01 | Toshiba Corp | Resistance thermometer |
| JPH0239105A (en) * | 1988-07-29 | 1990-02-08 | Nissha Printing Co Ltd | Production of color filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018091642A (en) * | 2016-11-30 | 2018-06-14 | 株式会社チノー | Sheath type temperature measuring resistor |
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