JPH0415530A - Composite thermocouple - Google Patents
Composite thermocoupleInfo
- Publication number
- JPH0415530A JPH0415530A JP2120434A JP12043490A JPH0415530A JP H0415530 A JPH0415530 A JP H0415530A JP 2120434 A JP2120434 A JP 2120434A JP 12043490 A JP12043490 A JP 12043490A JP H0415530 A JPH0415530 A JP H0415530A
- Authority
- JP
- Japan
- Prior art keywords
- sheath
- metallic wires
- thermocouples
- temperature
- series
- 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
- 239000002131 composite material Substances 0.000 title claims description 9
- 239000004020 conductor Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000012935 Averaging Methods 0.000 abstract description 2
- 229910001006 Constantan Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 15
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000007598 dipping method Methods 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）
本発明は熱電対の改良に関し、更に詳しくは２組以」二
の熱電対を１つのシースに内蔵させて高精度とした複合
熱電対に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in thermocouples, and more particularly to a composite thermocouple that has two or more thermocouples built into one sheath to achieve high precision. .
（従来の技術）
シース型熱電対は構造が簡単であり、かつ使用も簡単で
あるため、従来多用されている。(Prior Art) Sheathed thermocouples have a simple structure and are easy to use, so they have been widely used in the past.
シース型熱電対は、例えば第２図に示すように、シース
１の中に銅からなる金属線２とコンスタンクンからなる
金属線３とを設け、該金属線２と金属線３との接点４の
温度によって金属線２と金属線３との開に発生する起電
力Ｖが異なることを利用して温度を測定するものである
。For example, as shown in FIG. 2, a sheath type thermocouple includes a metal wire 2 made of copper and a metal wire 3 made of constancouple in a sheath 1, and a contact point 4 between the metal wire 2 and the metal wire 3. The temperature is measured by utilizing the fact that the electromotive force V generated across the metal wire 2 and metal wire 3 differs depending on the temperature.
尚、通常は、零度調整を行なわせるため、零接点ｊ５を
デユワ−ビン６に入れている。Note that, normally, the zero contact j5 is placed in the dewar bin 6 in order to perform zero degree adjustment.
（発明が解決しようとする課題）
ところが、従来公知のシース型熱電対は、１つだけの接
点で温度測定をするので、測定精度の面で不十分であっ
た。(Problems to be Solved by the Invention) However, conventionally known sheathed thermocouples measure temperature with only one contact point, and therefore are insufficient in measurement accuracy.
そこで、本発明のｌ］的は、従来公知のシース型熱電対
を改良し、測定精度を向上させたシース型の複合熱電対
を提供せんとするにある。Therefore, the object of the present invention is to improve the conventionally known sheath type thermocouple and provide a sheath type composite thermocouple with improved measurement accuracy.
（課題を解決するための手段）
本発明の特徴とするところは、シースと、該シースの中
に直列に連結されて設置された複数の熱電対とからなる
複合熱電対からなり、該複合熱電対の両端を補償導線に
連結しでなるとこ一
ろにある。(Means for Solving the Problems) The present invention is characterized by comprising a composite thermocouple consisting of a sheath and a plurality of thermocouples connected in series in the sheath. Both ends of the pair are connected to the compensating conductor.
（作用）
本発明によると、補償導線の両端に測定温度の熱電対数
倍の起電力に相当する電圧が生ずるので、これを平均す
ることにより、精度の高い測定結果が得られるものとな
る。(Function) According to the present invention, a voltage corresponding to an electromotive force that is the number of thermocouples times the measurement temperature is generated at both ends of the compensation conductor, and by averaging this voltage, a highly accurate measurement result can be obtained.
（実施例） 以下、図によって本発明の一実施例を説明する。(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例になる複合熱電対の略断面図
である。FIG. 1 is a schematic cross-sectional view of a composite thermocouple according to an embodiment of the present invention.
図において、シース１１の中には例えば銅からなる金属
線１２１．１２゜と、例えばコンスタンタンからなる金
属＃Ｘ１３い １３２がそれぞれ２本づつ設けられ、該
金属線１２．，１２□、及び金属線１３．．１３．はシ
ース１１の先端の温度検出部１４□、１４２で接続され
、これによって２組の熱電対が設けられている。又、そ
れぞれの熱電対を構成する金属線１２． １２．と金属
線１．３，１３２を直列に接続するためにシース１１の
基端の接続部１５内で・も接点１６で接続されている。In the figure, inside the sheath 11, there are provided two metal wires 121.12° made of, for example, copper, and two metal wires 121. , 12□, and metal wire 13. ．． 13. are connected by the temperature detecting portions 14□ and 142 at the tip of the sheath 11, thereby providing two sets of thermocouples. Further, metal wires 12 constituting each thermocouple. 12. In order to connect the metal wires 1.3, 132 in series, the metal wires 1.3 and 132 are also connected at a contact point 16 within the connecting portion 15 at the proximal end of the sheath 11.
前記直列【こ接続された金属線１２１．１２．及び１３
□、１３゜の両端１市は補償導線１７に接点１８６．１
８２によって接続され、起電力■を測定している。The series-connected metal wires 121, 12. and 13
□, 1 point at both ends of 13° is connected to compensation conductor 17 at contact point 186.1
82 and measures the electromotive force ■.
Ｉ官記２組の熱電対の接点１６、接点１８３．１ε；、
は、零接点を設定士るものであり、該接続部１５には温
度計１９及び電子温度調整器２０が設けられ、該温度計
１９によって該接続部１５の温度を検知し、そして電子
温度調整器２０によって所定の温度に継持されるように
調整されでいる。Contact point 16, contact point 183.1ε of two sets of I official thermocouple;
is for setting the zero contact point, and the connecting part 15 is provided with a thermometer 19 and an electronic temperature regulator 20, the temperature of the connecting part 15 is detected by the thermometer 19, and the electronic temperature regulator is set. The temperature is maintained at a predetermined temperature by means of a container 20.
前記のように構成された本発明の一実施例になる複合熱
電対の作用を以下に述べる。The operation of the composite thermocouple according to an embodiment of the present invention constructed as described above will be described below.
この実施例では、２組の熱電対が直列に連結されてシー
ス１１に設置されているのぐ、温度検出部１４い １４
２で測定された温度による起電力が補償導線１７の両端
部に２倍の起電力２＼ｌ（＼ｌは実際温度の起電力）と
なって現われる。In this embodiment, two sets of thermocouples are connected in series and installed in the sheath 11.
The electromotive force due to the temperature measured in step 2 appears at both ends of the compensation conductor 17 as an electromotive force 2\l (\l is the electromotive force at the actual temperature).
従って、これを１／２にすることにより、実際温度に相
当する起電力が算出される。Therefore, by halving this, an electromotive force corresponding to the actual temperature can be calculated.
本発明によると、１組だけの熱電対で測定する場合より
も測定精度が向上するものとなる。According to the present invention, measurement accuracy is improved compared to when measuring with only one set of thermocouples.
尚、測定精度を一層向上させるために、零接、αの作用
をする接点１６及び接点１８１．１８２が設けられでい
る接続部１５の温度を温度計１９によって測定し、該測
定値を設定値（零度）と比較しながら電子温度調整器２
０によって所定値に調整する。このように零接点の温度
制御を行なうと、従来のデユワ−ピンに接点を浸けるも
のと比べて操作が簡単である上、測定精度も−・層内」
二するものとなる。In order to further improve the measurement accuracy, the temperature of the connection part 15, where the contact 16 and contacts 181 and 182 that act as zero contact and α, are provided is measured with a thermometer 19, and the measured value is set as the set value. Electronic temperature regulator 2 while comparing with (zero degree)
Adjust to a predetermined value by setting 0. By controlling the temperature of the zero contact in this way, it is easier to operate than the conventional method of dipping the contact into a dewar pin, and the measurement accuracy is also improved.
It becomes the second thing.
以上は本発明の一実施例であって、本発明は上記実施例
に限定されるものではない。The above is one embodiment of the present invention, and the present invention is not limited to the above embodiment.
特に、シースの中に設置される熱電対の組数は２組に限
定されるものではなく、組数が多い程測定精度が向上す
るので、３組以上として一層測定精度を向上させるよう
にすることが望ましい。In particular, the number of sets of thermocouples installed in the sheath is not limited to two sets, and the measurement accuracy improves as the number of sets increases, so three or more sets are used to further improve the measurement accuracy. This is desirable.
又、熱電対を構成する材料の組み合わせは、銅とコンス
タンクンに限定されるものではなく、その他の公知の材
料の組み合わせも含むものて゛ある。Furthermore, the combination of materials constituting the thermocouple is not limited to copper and constant, but may also include combinations of other known materials.
更に又、本発明はデユワ−ピンによって零度調整するも
のを除外するものではない。Furthermore, the present invention does not exclude zero adjustment using a dewar pin.
（発明の効果）
以上のように構成され、作用する本発明の効果を−Ｌげ
ると、以下のとおりである。(Effects of the Invention) The effects of the present invention, which is constructed and operates as described above, are as follows.
複数の温度検出部で温度を検出するので、測定精度が向
」ニする。Since temperature is detected by multiple temperature detection parts, measurement accuracy is improved.
構造が簡単であり、低コストである。The structure is simple and the cost is low.
接続部に設けられた零接点の温度を調整可能としている
ものでは、取り扱いが簡単となる上、−層側定精度が向
−ヒするものとなる。If the temperature of the zero contact provided at the connection part can be adjusted, handling becomes easier and the -layer side determination accuracy is improved.
第１図は本発明の一実施例を示す複合熱電対を示す該略
断面図、第２図は従来公知のシース型態電灯を示す断面
図である。
１１：シース １２１．１２．：金属線１３い １３２
：金属線
１４４．１４２：温度検出部 １５：接続部１６：接点
１７：補償導線
１８、．１８２：接点 １９：温度計
２０：電子温度調整器
＝７FIG. 1 is a schematic sectional view showing a composite thermocouple according to an embodiment of the present invention, and FIG. 2 is a sectional view showing a conventionally known sheath type electric lamp. 11: Sheath 121.12. : Metal wire 13 132
: Metal wire 144.142: Temperature detection section 15: Connection section 16: Contact point 17: Compensation lead wire 18, . 182: Contact 19: Thermometer 20: Electronic temperature regulator = 7
Claims (2)
された複数の熱電対とからなり、該熱電対の両端を補償
導線に連結してなることを特徴とする複合熱電対。(1) A composite thermocouple comprising a sheath and a plurality of thermocouples connected in series within the sheath, with both ends of the thermocouples connected to compensation conductors.
及び電子温度調整器を設け、該接続部の温度を一定に調
整してなることを特徴とする請求項第１項記載の複合熱
電対。(2) A connecting portion is provided at the proximal end of the sheath, a thermometer and an electronic temperature regulator are provided at the connecting portion, and the temperature of the connecting portion is adjusted to a constant value. composite thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2120434A JPH0415530A (en) | 1990-05-10 | 1990-05-10 | Composite thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2120434A JPH0415530A (en) | 1990-05-10 | 1990-05-10 | Composite thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0415530A true JPH0415530A (en) | 1992-01-20 |
Family
ID=14786118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2120434A Pending JPH0415530A (en) | 1990-05-10 | 1990-05-10 | Composite thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0415530A (en) |
-
1990
- 1990-05-10 JP JP2120434A patent/JPH0415530A/en active Pending
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