JP2000230867A - Thermoelectric converter element - Google Patents
Thermoelectric converter elementInfo
- Publication number
- JP2000230867A JP2000230867A JP11032916A JP3291699A JP2000230867A JP 2000230867 A JP2000230867 A JP 2000230867A JP 11032916 A JP11032916 A JP 11032916A JP 3291699 A JP3291699 A JP 3291699A JP 2000230867 A JP2000230867 A JP 2000230867A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- thermoelectric conversion
- conversion element
- cuprous oxide
- temperature
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、温度測定などに
用いられる熱電変換素子に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoelectric conversion element used for temperature measurement and the like.
【０００２】[0002]
【従来の技術】従来より、この種の熱電変換素子とし
て、アルメル・クロメル熱電対（以下、Ｋ熱電対と言
う）がよく用いられている。このＫ熱電対は、ニッケル
およびクロムを主成分とした第１の電極（＋側）と、ニ
ッケルを主成分とした第２の電極（−側）とを有し、第
１の電極の端面と第２の電極の端面とが突き合わせて接
合されている。この第１の電極と第２の電極との接合部
を温度測定点にセットする。すると、その第１の電極と
第２の電極との接合部に温度測定点の温度に応じた熱起
電力が発生する。2. Description of the Related Art Conventionally, as this type of thermoelectric conversion element, an Armel-Chromel thermocouple (hereinafter referred to as a K thermocouple) has been often used. This K thermocouple has a first electrode (+ side) mainly composed of nickel and chromium, and a second electrode (− side) mainly composed of nickel, and has an end face of the first electrode. The end face of the second electrode is butted and joined. The junction between the first electrode and the second electrode is set at a temperature measurement point. Then, a thermoelectromotive force corresponding to the temperature at the temperature measurement point is generated at the junction between the first electrode and the second electrode.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
Ｋ熱電対などの熱電変換素子では、得られる熱起電力の
大きさが小さく、このためその使用用途が限られてい
た。However, in the conventional thermoelectric conversion element such as a K thermocouple, the magnitude of the obtained thermoelectromotive force is small, so that its use is limited.
【０００４】本発明はこのような課題を解決するために
なされたもので、その目的とするところは、得られる熱
起電力を大として、その使用用途を広げることのできる
熱電変換素子を提供することにある。The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a thermoelectric conversion element capable of increasing the obtained thermoelectromotive force and expanding its use. It is in.
【０００５】[0005]
【課題を解決するための手段】このような目的を達成す
るために、本発明の熱電変換素子は、第１の電極を銅
（Ｃｕ）を主成分とする電極とし、第２の電極を亜酸化
銅（Ｃｕ2 Ｏ）を主成分とする電極としたものである。
この発明によれば、銅を主成分とする第１の電極と亜酸
化銅を主成分とする第２の電極との接合部に熱起電力が
生じる。なお、第２の電極は、亜酸化銅を主成分とする
一体形成された電極とする。すなわち、亜酸化銅の粉末
や粒子を用いるのではなく、亜酸化銅を主成分とするバ
ルク状の電極とする。また、亜酸化銅を主成分とするバ
ルク状の電極は、銅を主成分とする材料を出発材料とし
てホットゾーン現象により形成する。In order to achieve such an object, a thermoelectric conversion element according to the present invention has a first electrode composed mainly of copper (Cu) and a second electrode composed of sub-electrode. The electrode is mainly composed of copper oxide (Cu 2 O).
According to the present invention, a thermoelectromotive force is generated at the junction between the first electrode mainly composed of copper and the second electrode mainly composed of cuprous oxide. Note that the second electrode is an integrally formed electrode mainly containing cuprous oxide. That is, instead of using powder or particles of cuprous oxide, a bulk electrode mainly containing cuprous oxide is used. The bulk electrode mainly composed of cuprous oxide is formed by a hot zone phenomenon using a material mainly composed of copper as a starting material.
【０００６】[0006]
【発明の実施の形態】以下、本発明を実施の形態に基づ
き詳細に説明する。図１はこの発明の一実施の形態を示
す熱電変換素子の製造過程を示す図である。本実施の形
態では、例えば、ＪＩＳＣ３３４２に２心ケーブルの導
体として示された直径２．０ｍｍの銅線１（図１
（ａ））を利用し、この銅線１を２つにカットして銅線
１−１，１−２とする（図１（ｂ））。なお、実際の測
定に用いたケーブルは、西日本電線株式会社製の６００
Ｖ平形ビニル絶縁ビニルシースケーブル（ＶＶＦ）であ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments. FIG. 1 is a view showing a process of manufacturing a thermoelectric conversion element according to an embodiment of the present invention. In the present embodiment, for example, a copper wire 1 having a diameter of 2.0 mm shown as a conductor of a two-core cable in JISC3342 (see FIG. 1)
Using (a)), this copper wire 1 is cut into two to obtain copper wires 1-1 and 1-2 (FIG. 1 (b)). The cable used for the actual measurement was Nishi Nippon Electric Cable Co., Ltd.
This is a V flat vinyl insulated vinyl sheath cable (VVF).
【０００７】そして、この銅線１−１の端面と銅線１−
２の端面とを突き合わせ、通電を行い、この通電中に銅
線１−１の端面と銅線１−２の端面との接触部の開閉を
繰り返す。この開閉を繰り返していると、開閉アークの
熱などにより接触部に亜酸化銅１−３が生成される（図
１（ｃ））。常温に近い亜酸化銅１−３は抵抗が大きい
ので、銅線１−１と銅線１−２とが亜酸化銅１−３を挟
んで接触する形になると、電流はほとんど流れなくな
る。The end of the copper wire 1-1 and the copper wire 1-
The end faces of the copper wire 1-1 and the end face of the copper wire 1-2 are repeatedly opened and closed during the energization. When the opening and closing are repeated, cuprous oxide 1-3 is generated at the contact portion due to the heat of the opening and closing arc (FIG. 1C). Since the cuprous oxide 1-3 near room temperature has a large resistance, when the copper wire 1-1 and the copper wire 1-2 come into contact with each other with the cuprous oxide 1-3 interposed therebetween, almost no current flows.
【０００８】この状態で、接触部の温度を上昇させる手
段の１つとして、亜酸化銅１−３の部分に少量の水滴を
たらす。すると、水に流れる電流により加熱され、抵抗
が減少する。引き続き水滴をたらすと、更に加熱され、
オレンジ色に輝くホットゾーンが発生する。発生直後の
ホットゾーンは非常に小さい。この状態を放置しておく
と、ホットゾーンの長さが増大して抵抗値も増加し、亜
酸化銅１−３の生成領域が拡がる（図１（ｄ））。やが
て、ホットゾーンの成長は遅くなり、停止する。これに
より、亜酸化銅１−３の生成も停止する。In this state, as one of means for increasing the temperature of the contact portion, a small amount of water drops is dropped on the cuprous oxide 1-3. Then, it is heated by the current flowing in the water, and the resistance decreases. If you continue to drop water, it will be heated further,
Hot zones shining orange are generated. The hot zone immediately after the occurrence is very small. If this state is left as it is, the length of the hot zone increases, the resistance value also increases, and the generation region of the cuprous oxide 1-3 expands (FIG. 1D). Eventually, the growth of the hot zone slows down and stops. This also stops the production of cuprous oxide 1-3.
【０００９】このようにして、銅線１−１と銅線１−２
との接触部に亜酸化銅１−３を生成した後、これを２つ
にカットして銅線１−１’，１−２’を得る（図１
（ｅ））。そして、この銅線１−１’，１−２’の一
方、ここでは銅線１−１’を第２の電極とし、この第２
の電極１−１’の端面１−１’ａを研磨する（図１
（ｆ））。ここでは、例えば、研磨紙１５０番→４００
番→８００番→１０００番の順に研磨し、最後に金属用
研磨剤によって鏡面仕上げを行う。In this way, the copper wire 1-1 and the copper wire 1-2
After a cuprous oxide 1-3 is generated at the contact portion with the copper wire, it is cut into two to obtain copper wires 1-1 ′ and 1-2 ′ (FIG. 1).
(E)). Then, one of the copper wires 1-1 ′ and 1-2 ′, here, the copper wire 1-1 ′ is used as a second electrode, and the second electrode
Polish the end face 1-1′a of the electrode 1-1 ′ of FIG.
(F)). Here, for example, abrasive paper No. 150 → 400
Polishing is performed in the order of No. 800 to No. 1000, and finally a mirror finish is performed using a metal abrasive.
【００１０】そして、図１（ｇ）に示すように、第２の
電極１−１’と同様にしてその端面２ａを鏡面仕上げし
た第１の電極（直径２．０ｍｍの銅線）２を用意し、こ
の第１の電極２の端面２ａと第２の電極１−１’の端面
１−１’ａとを突き合わせて接合（後述の図２の微動装
置７を使用）し、本実施の形態の熱電変換素子３を得
る。Then, as shown in FIG. 1 (g), a first electrode (a copper wire having a diameter of 2.0 mm) 2 whose end face 2a is mirror-finished in the same manner as the second electrode 1-1 'is prepared. Then, the end face 2a of the first electrode 2 and the end face 1-1'a of the second electrode 1-1 'are abutted and joined (using a fine movement device 7 shown in FIG. 2 described later) to form the present embodiment. Is obtained.
【００１１】この熱電変換素子３では、従来のＫ熱電対
に対し、６〜８倍の熱起電力を得ることができる。これ
により、本実施の形態の熱電変換素子３によれば、単な
る温度センサとしての用途だけではなく、ガス機器や比
較的簡単な直接制御そして熱電池などの熱電変換素子と
して、新しい分野への適用が可能となり、その使用用途
が広がる。The thermoelectric conversion element 3 can obtain a thermoelectromotive force 6 to 8 times that of the conventional K thermocouple. Thus, according to the thermoelectric conversion element 3 of the present embodiment, the thermoelectric conversion element is not only used as a temperature sensor, but also applied to a new field as a thermoelectric conversion element such as a gas appliance, a relatively simple direct control, and a thermal battery. Is possible, and the use of the device is expanded.
【００１２】なお、これまで亜酸化銅は主として船底の
貝付着防止塗料としてしか用いられておらず、酸化銅を
還元した粉末状のものが製造されているだけである。ま
た、近年では、高性能な貝付着防止塗料が開発されたこ
とから、亜酸化銅の工業用途は実質的に無くなってい
る。このため、亜酸化銅を一体形成する技術、すなわち
亜酸化銅をバルク状（一体の塊）に製造する技術は確立
されていない。本実施の形態では、第２の電極１−１’
の第１の電極２との接合部をバルク状の亜酸化銅とする
必要があり、これを実現するために文献１（「導体接続
部におけるホットゾーン成長現象」：電気学会論文誌、
６１−Ａ６３、昭和６１−１１）や文献２（「直流１２
Ｖ回路における導体接続部のホットゾーン」：T.IEE Ja
pan,Vol.117-A,NO.2,'97）などで知られているホットゾ
ーン現象を利用して亜酸化銅を生成するようにした。現
在のところ、他の製造方法は知られていない。Until now, cuprous oxide has been mainly used only as a paint for preventing shellfish from adhering to the bottom of a ship, and only a powdery substance obtained by reducing copper oxide has been manufactured. In recent years, industrial applications of cuprous oxide have practically disappeared due to the development of high-performance anti-shellfish paint. For this reason, a technique for integrally forming cuprous oxide, that is, a technique for manufacturing cuprous oxide in a bulk (integral mass) has not been established. In the present embodiment, the second electrode 1-1 ′
It is necessary to use a bulky cuprous oxide for the joint with the first electrode 2 of the above. In order to realize this, reference 1 (“Hot zone growth phenomenon at the conductor connecting portion”: Transactions of the Institute of Electrical Engineers of Japan,
61-A63, Showa 61-11) and Reference 2 (“DC 12
Hot zone of conductor connection in V circuit ": T.IEE Ja
pan, Vol. 117-A, NO. 2, '97), etc., so as to generate cuprous oxide using a hot zone phenomenon. At present, no other manufacturing method is known.
【００１３】また、本実施の形態では、直径２．０ｍｍ
の銅線を第１の電極２とし、また直径２．０ｍｍの銅線
を出発材料としてホットゾーン現象により亜酸化銅を形
成した線を第２の電極１−１’としたが、電極材料は直
径２．０ｍｍの銅線に限られるものではない。また、当
然ながら第１の電極２は完全に純粋な銅ではありえず、
銅を主成分としていればよい。直径２．０ｍｍの銅線に
は工業的・経済的に不可避な不純物が含まれている。ま
た、第２の電極１−１’における亜酸化銅も完全に純粋
な亜酸化銅ではありえず、亜酸化銅を主成分としていれ
ばよい。In this embodiment, the diameter is 2.0 mm.
Was used as a first electrode 2, and a copper wire having a diameter of 2.0 mm as a starting material and a cuprous oxide formed by a hot zone phenomenon was used as a second electrode 1-1 ′. It is not limited to a copper wire having a diameter of 2.0 mm. Also, of course, the first electrode 2 cannot be completely pure copper,
What is necessary is just to use copper as a main component. The copper wire having a diameter of 2.0 mm contains impurities that are unavoidable industrially and economically. Also, the cuprous oxide in the second electrode 1-1 ′ cannot be completely pure cuprous oxide, and it is sufficient that cuprous oxide is the main component.
【００１４】〔従来のＫ熱電対と本実施の形態の熱電変
換素子３との熱起電力の比較〕図２は従来のＫ熱電対と
本実施の形態の熱電変換素子３との熱起電力を比較する
ための試料保持装置の概要を示す図である。同図におい
て、４は基台、５は固定支柱、６は可動支柱、７は微動
装置である。固定支柱５や可動支柱６は直径２０ｍｍの
黄銅製であり、熱容量は充分に大きなものとされてい
る。また、微動装置７にはつまみ７−１が設けられてお
り、このつまみ７−１を回すことによって可動支柱６を
図示矢印Ａ，Ｂ方向に移動させることができる。[Comparison of thermoelectromotive force between conventional K thermocouple and thermoelectric conversion element 3 of this embodiment] FIG. 2 shows the thermoelectromotive force of conventional K thermocouple and thermoelectric conversion element 3 of this embodiment. FIG. 3 is a diagram showing an outline of a sample holding device for comparing. In the figure, 4 is a base, 5 is a fixed support, 6 is a movable support, and 7 is a fine movement device. The fixed support 5 and the movable support 6 are made of brass having a diameter of 20 mm, and have a sufficiently large heat capacity. The fine movement device 7 is provided with a knob 7-1. By turning the knob 7-1, the movable column 6 can be moved in the directions indicated by arrows A and B.
【００１５】この試料保持装置に本実施の形態の熱電変
換素子３を試料としてセットする。すなわち、熱電変換
素子３の第１の電極２側を固定支柱５にネジ５−１によ
り固定し、第２の電極１−１’側を可動支柱６にネジ６
−１により固定する。この時、熱電変換素子３の第１の
電極２と第２の電極１−１’との接合部は、Ｋ熱電対８
を熱結合させたうえ、マイラー９で包み、鉄板製のシー
ス１０で覆っておく。また、基台４に、Ｋ熱電対１１を
セットする。The thermoelectric conversion element 3 of this embodiment is set as a sample in the sample holding device. That is, the first electrode 2 side of the thermoelectric conversion element 3 is fixed to the fixed column 5 with the screw 5-1 and the second electrode 1-1 'side is fixed to the movable column 6 with the screw 6.
Fix by -1. At this time, the junction between the first electrode 2 and the second electrode 1-1 'of the thermoelectric conversion element 3 is connected to the K thermocouple 8
Are thermally bonded, wrapped in a mylar 9, and covered with an iron plate sheath 10. Further, the K thermocouple 11 is set on the base 4.
【００１６】そして、熱電変換素子３の第１の電極２の
端部にワニ口クリップ１２−１を取り付け、第２の電極
１−１’の端部にワニ口クリップ１２−２を取り付け
る。そして、ワニ口クリップ１２−１および１２−２か
らのリード線間に生じる熱起電力（熱電変換素子３の接
合部に生じる熱起電力）を、図３に示すように、アンプ
１３−１，Ａ／Ｄ変換器１４−１を介してコンピュータ
１５へ与える。また、Ｋ熱電対８に生じる熱起電力をア
ンプ１３−２，Ａ／Ｄ変換器１４−２を介して、Ｋ熱電
対１１に生じる熱起電力をアンプ１３−３，Ａ／Ｄ変換
器１４−３を介してコンピュータ１５へ与える。Then, an alligator clip 12-1 is attached to an end of the first electrode 2 of the thermoelectric conversion element 3, and an alligator clip 12-2 is attached to an end of the second electrode 1-1 '. Then, as shown in FIG. 3, the thermoelectromotive force generated between the lead wires from the alligator clips 12-1 and 12-2 (the thermoelectromotive force generated at the junction of the thermoelectric conversion elements 3) is converted to the amplifier 13-1, It is provided to the computer 15 via the A / D converter 14-1. The thermoelectromotive force generated in the K thermocouple 8 is transmitted to the amplifier 13-3 and the A / D converter 14-2 via the amplifier 13-2 and the A / D converter 14-2. -3 to the computer 15.
【００１７】このようなセット状況において、手持ち型
のガス（ブタンガス）バーナ１６を用いて、シース１０
で覆われた熱電変換素子３の第１の電極２と第２の電極
１−１’との接合部を加温する。ガスバーナ１６の火炎
は不安定なため、また、熱電変換素子３の熱容量が小さ
いことから、一定の温度を保つことは困難である。この
ため、火炎の当たり方を適当に調整しながら、３６０゜
方向から加温する。In such a setting situation, a sheath 10 is provided by using a hand-held gas (butane gas) burner 16.
The junction between the first electrode 2 and the second electrode 1-1 'of the thermoelectric conversion element 3 covered with is heated. Since the flame of the gas burner 16 is unstable and the heat capacity of the thermoelectric conversion element 3 is small, it is difficult to maintain a constant temperature. For this reason, heating is performed from a 360 ° direction while appropriately adjusting the way of the flame.
【００１８】通常の電圧計では熱起電力を温度変動に追
随して測定することが困難である。このため、コンピュ
ータ１５を用い、同時計測を行う。熱電変換素子３の第
１の電極２と第２の電極１−１’との接合部の温度差
は、試料保持部の温度（Ｋ熱電対１１による測定温度）
と試料接合部の温度（Ｋ熱電対８による測定温度）との
温度差により計測する。It is difficult to measure the thermoelectromotive force by following the temperature fluctuation with a normal voltmeter. Therefore, simultaneous measurement is performed using the computer 15. The temperature difference at the junction between the first electrode 2 and the second electrode 1-1 'of the thermoelectric conversion element 3 is the temperature of the sample holder (measured by the K thermocouple 11).
It is measured by a temperature difference between the temperature of the sample junction and the temperature of the sample joint (measured by the K thermocouple 8).
【００１９】なお、図３において、アンプ１３−１の利
得は「５」、アンプ１３−２，１３−３の利得は「７
０」とし、Ａ／Ｄ変換器１４−１〜１４−３は８ビット
Ａ／Ｄコンバータを用いている。また、温度範囲は室温
から８００℃までについて、５０℃間隔となるようにコ
ンピュータ１５へプログラムを与えている。In FIG. 3, the gain of the amplifier 13-1 is "5", and the gains of the amplifiers 13-2 and 13-3 are "7".
0 ", and the A / D converters 14-1 to 14-3 use 8-bit A / D converters. In addition, a program is given to the computer 15 so that the temperature range is from room temperature to 800 ° C. and at 50 ° C. intervals.
【００２０】このとき得られるデータは温度に対してラ
ンダムなものであるが、収集されたデータをソートする
ことにより、Ｋ熱電対８と本実施の形態の熱電変換素子
３の温度−起電力特性を比較することができる。図４に
この時のコンピュータ１５での計測結果に基づくＫ熱電
対８と本実施の形態の熱電変換素子３の温度−起電力特
性を示す。特性ＩがＫ熱電対８の温度−起電力特性、特
性IIが本実施の形態の熱電変換素子３の温度−起電力特
性である。この特性Ｉ，IIから分かるように、本実施の
形態の熱電変換素子３では、従来のＫ熱電対８に対して
６〜８倍の熱起電力を得ることができる。The data obtained at this time is random with respect to the temperature. By sorting the collected data, the K-thermocouple 8 and the temperature-electromotive force characteristics of the thermoelectric conversion element 3 of the present embodiment are sorted out. Can be compared. FIG. 4 shows the temperature-electromotive force characteristics of the K thermocouple 8 and the thermoelectric conversion element 3 of the present embodiment based on the measurement result of the computer 15 at this time. Characteristic I is a temperature-electromotive force characteristic of the K thermocouple 8, and characteristic II is a temperature-electromotive force characteristic of the thermoelectric conversion element 3 of the present embodiment. As can be seen from these characteristics I and II, the thermoelectric conversion element 3 of the present embodiment can obtain a thermoelectromotive force 6 to 8 times that of the conventional K thermocouple 8.
【００２１】なお、図４の特性Ｉ，IIは、５０℃間隔の
熱起電力について各１０個のデータの単純平均したもの
をプロットし、これを線でつないだものである。本実施
の形態の熱電変換素子３の特性IIでは、５００℃近辺ま
では線形性が表れている。この領域までは温度センサと
して利用することが可能である。この場合、熱起電力が
大きいことが利点となり、測定精度をアップすることが
可能となる。The characteristics I and II in FIG. 4 are obtained by plotting simple averages of ten data for each of the thermoelectromotive forces at 50 ° C. intervals, and connecting these by lines. In the characteristic II of the thermoelectric conversion element 3 of the present embodiment, linearity appears up to around 500 ° C. Up to this area, it can be used as a temperature sensor. In this case, it is advantageous that the thermoelectromotive force is large, and the measurement accuracy can be improved.
【００２２】５００℃近辺を超えると線形性がくずれて
くる。この線形性のくずれが表れる付近の温度では亜酸
化銅が赤熱を呈するあたりの初期温度であり、軟化の始
まる温度域でもある。また、導電率が急速に小さくなる
領域でもあることと関連が考えられる。一方、８００℃
の温度は亜酸化銅のＰ形半導体としてのフェルミ順位が
ほぼ、飽和するところである。短時間ではあるが、軟化
した状態と考えられる温度域の１２００℃において、８
００ｍＶの熱起電力を記録した。When the temperature exceeds about 500 ° C., the linearity is lost. At a temperature near the point where the linearity is lost, this is an initial temperature at which the cuprous oxide exhibits red heat, and is also a temperature range where softening starts. It is also considered that this is related to the region where the conductivity is rapidly reduced. On the other hand, 800 ° C
Is where the Fermi rank of cuprous oxide as a P-type semiconductor is almost saturated. Although it is a short time, at 1200 ° C. in a temperature range considered to be in a softened state, 8
A thermoelectromotive force of 00 mV was recorded.
【００２３】[0023]
【発明の効果】以上説明したことから明らかなように本
発明の熱電変換素子によれば、銅を主成分とする第１の
電極と、亜酸化銅を主成分とする第２の電極とを設け、
第１の電極と第２の電極とを接合するようにしたので、
その接合部での熱起電力を大として、使用用途を広げる
ことができるようになる。As is apparent from the above description, according to the thermoelectric conversion element of the present invention, the first electrode mainly composed of copper and the second electrode mainly composed of cuprous oxide are used. Provided,
Since the first electrode and the second electrode are joined,
By increasing the thermoelectromotive force at the junction, the usage can be expanded.
【図面の簡単な説明】[Brief description of the drawings]
【図１】 本発明の一実施の形態を示す熱電変換素子の
製造過程を示す図である。FIG. 1 is a diagram illustrating a manufacturing process of a thermoelectric conversion element according to an embodiment of the present invention.
【図２】 従来のＫ熱電対と本実施の形態の熱電変換素
子との熱起電力を比較するための試料保持装置の概要を
示す図である。FIG. 2 is a diagram showing an outline of a sample holding device for comparing the thermoelectromotive force between a conventional K thermocouple and the thermoelectric conversion element of the present embodiment.
【図３】 従来のＫ熱電対と本実施の形態の熱電変換素
子との熱起電力を比較するための計測システムを示す図
である。FIG. 3 is a diagram showing a measurement system for comparing the thermoelectromotive force between a conventional K thermocouple and the thermoelectric conversion element of the present embodiment.
【図４】 この計測システムにおけるコンピュータでの
計測結果に基づくＫ熱電対と本実施の形態の熱電変換素
子の温度−起電力特性を示す図である。FIG. 4 is a diagram showing temperature-electromotive force characteristics of a K thermocouple based on a measurement result of a computer in the measurement system and a thermoelectric conversion element of the present embodiment.
１…銅線、１−１’…第２の電極、１−１’ａ…端面、
２…第１の電極、２ａ…端面、１−３…亜酸化銅、３…
熱電変換素子。1: Copper wire, 1-1 ': Second electrode, 1-1'a: End face,
2 1st electrode, 2a ... end face, 1-3 ... cuprous oxide, 3 ...
Thermoelectric conversion element.
Claims (3)
銅を主成分とする第２の電極とを有し、前記第１の電極
と前記第２の電極とが接合されていることを特徴とする
熱電変換素子。A first electrode mainly composed of copper and a second electrode mainly composed of cuprous oxide, wherein the first electrode and the second electrode are joined to each other. A thermoelectric conversion element.
酸化銅を主成分とする一体形成された電極とされている
ことを特徴とする熱電変換素子。2. The thermoelectric conversion element according to claim 1, wherein the second electrode is an integrally formed electrode mainly composed of cuprous oxide.
を主成分とする材料を出発材料としてホットゾーン現象
により形成されていることを特徴とする熱電変換素子。3. The thermoelectric conversion element according to claim 2, wherein the second electrode is formed by a hot zone phenomenon using a material mainly composed of copper as a starting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11032916A JP2000230867A (en) | 1999-02-10 | 1999-02-10 | Thermoelectric converter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11032916A JP2000230867A (en) | 1999-02-10 | 1999-02-10 | Thermoelectric converter element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000230867A true JP2000230867A (en) | 2000-08-22 |
Family
ID=12372233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11032916A Pending JP2000230867A (en) | 1999-02-10 | 1999-02-10 | Thermoelectric converter element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000230867A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009056724A1 (en) * | 2009-12-02 | 2011-06-09 | Bundesanstalt für Materialforschung und -Prüfung (BAM) | Temperature measuring device and manufacturing method |
| JP2018529957A (en) * | 2015-10-15 | 2018-10-11 | レイセオン カンパニー | Thin film based thermal reference source |
-
1999
- 1999-02-10 JP JP11032916A patent/JP2000230867A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009056724A1 (en) * | 2009-12-02 | 2011-06-09 | Bundesanstalt für Materialforschung und -Prüfung (BAM) | Temperature measuring device and manufacturing method |
| JP2018529957A (en) * | 2015-10-15 | 2018-10-11 | レイセオン カンパニー | Thin film based thermal reference source |
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