JPH06347339A - Temperature sensor - Google Patents

Temperature sensor

Info

Publication number
JPH06347339A
JPH06347339A JP17716393A JP17716393A JPH06347339A JP H06347339 A JPH06347339 A JP H06347339A JP 17716393 A JP17716393 A JP 17716393A JP 17716393 A JP17716393 A JP 17716393A JP H06347339 A JPH06347339 A JP H06347339A
Authority
JP
Japan
Prior art keywords
lead wire
temperature
wire
tube
gold
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
Application number
JP17716393A
Other languages
Japanese (ja)
Inventor
Yasuo Kitsuta
泰生 橘田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP17716393A priority Critical patent/JPH06347339A/en
Publication of JPH06347339A publication Critical patent/JPH06347339A/en
Pending legal-status Critical Current

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  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE:To obtain a temperature sensor for measuring directly the temperature of a material in a test tube while the tube is rotating. CONSTITUTION:This sensor features that a knitted wire 5 of stainless steel plated with gold is used as a lead wire, one end thereof is passed through a slender brass pipe 8 for press-bonding and a tight knot 6 is made of it, that a lead wire 4 of a platinum temperature-measuring resistor 3 is inserted into the brass pipe from the opposite side and then press-bonded and the pipe and the resistor are put in a protective tube 1 having a plug hand tap 2 provided at the part of an opening, and that an insulation shrinkage tube 7 is fitted on the knitted wire 5 of stainless steel plated with gold and the inside of the protective tube is bonded firmly with epoxy resin 9.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この考案は回転する試験管の内部
温度を測定するための温度センサーに関するものであ
る。
BACKGROUND OF THE INVENTION The present invention relates to a temperature sensor for measuring the internal temperature of a rotating test tube.

【0002】[0002]

【従来の技術】従来の温度センサーは、必要とする温度
測定部分にセンサー先端を固定して用いるものであっ
た。このことは、例えば、遠心エバポレーター等、回転
したり、移動したりする資料温度を直接測定することは
不可能であり、通常は、近接する不動部分の温度を測定
して、それで資料温度を推定する方法がとられてきた。
遠心エバポレーターの場合で云えば、真空槽の外周温度
を測定して、資料温度を推定するなどである。しかしこ
の方法の実際は、真空槽の外周温度が50℃を示してい
るのに、減圧による急速な蒸発のため資料溶媒は凍結し
ているなど、その差が極めて大きく、決して有効な方法
とは云いがたいものであった。この問題を解決するた
め、本考案者によって出願番号実願平 4−67516
[温度測定具]が出願されいてる。その結果、従来測定
不可能であった、回転中の資料温度の測定を一応可能に
したのであるが、問題を100%解決したものではなか
った。
2. Description of the Related Art In the conventional temperature sensor, the tip of the sensor is fixed to a required temperature measuring portion for use. This means that it is not possible to directly measure the temperature of a rotating or moving sample, such as a centrifugal evaporator, and it is usually necessary to measure the temperature of an adjacent immovable part to estimate the sample temperature. The method of doing has been taken.
In the case of a centrifugal evaporator, the temperature of the outer circumference of the vacuum chamber is measured to estimate the material temperature. However, the fact that this method is actually an effective method because the outer temperature of the vacuum chamber is 50 ° C, but the material solvent is frozen due to rapid evaporation due to reduced pressure, and the difference is extremely large. It was difficult. In order to solve this problem, the present inventor has filed an application number of Japanese Patent Application No. 4-67516.
[Temperature measuring tool] has been filed. As a result, although it was possible to measure the temperature of the material during rotation, which was previously impossible to measure, the problem was not completely solved.

【0003】[0003]

【発明が解決しようとする課題】すなわち、センサーの
リード線の部分にバネを装着することにより、リード線
のねじれを防ぎ、回転を可能にはしたが、それでも長時
間の回転は無理であった。通常の電気部品に使用されて
いる銅の撚り線ではあまりにも強度不足で、回転による
同一箇所の繰り返しの曲げによって金属疲労をおこし、
また、回転による遠心力によって外側に強く引っ張ら
れ、この二つの複合された原因によってリード線が切断
される。本発明はこうした問題点を解決するためのもの
である。
That is, by attaching a spring to the lead wire portion of the sensor to prevent the lead wire from twisting and enabling rotation, it is still impossible to rotate for a long time. . The strength of the stranded copper wire used in ordinary electrical components is too low, and repeated bending of the same part due to rotation causes metal fatigue,
In addition, the centrifugal force generated by the rotation strongly pulls the wire to the outside, and the lead wire is cut due to these two combined causes. The present invention is intended to solve these problems.

【0004】[0004]

【課題を解決するための手段】金メッキをほどこしたス
テンレスの編み線(5)をリード線として使用し、その
一端を細い圧着用真鍮パイプ(8)に通して、固い結び
目(6)を作り、真鍮パイプの反対側から白金測温抵抗
体(3)のリード線(4)を挿入したあと圧着し、口の
部分に中タップ(2)を施した保護管(1)に収め、絶
縁収縮チューブ(7)を金メッキをほどこしたステンレ
スの編み線(5)に装着し、保護管内をエポキシ樹脂
(9)によって強固に接着することを特徴とする温度セ
ンサー。
[Means for Solving the Problems] Using a gold-plated stainless braided wire (5) as a lead wire, one end of the braided wire is passed through a thin crimping brass pipe (8) to form a hard knot (6), Insert the lead wire (4) of the platinum resistance thermometer (3) from the opposite side of the brass pipe, crimp it, and put it in the protective tube (1) with the middle tap (2) at the mouth, and then the insulation shrink tube A temperature sensor characterized in that (7) is mounted on a gold-plated stainless braided wire (5), and the inside of the protective tube is firmly bonded with an epoxy resin (9).

【0005】[0005]

【作用】リード線がステンレスの編み線であるため、従
来の銅の撚り線に比して、容易に金属疲労を起こさず、
遠心力による引っ張りにも耐えることができるので、リ
ード線が切断されることがない。また、リード線と保護
管とは強固に接着されているので、保護管からリード線
が抜け落ちることもない。
[Function] Since the lead wire is a braided wire made of stainless steel, it does not easily cause metal fatigue as compared with a conventional copper stranded wire,
Since it can withstand pulling due to centrifugal force, the lead wire is not cut. Further, since the lead wire and the protective tube are firmly bonded, the lead wire does not fall out of the protective tube.

【0006】[0006]

【実施例】以下、本発明の実施例について述べる。 (イ) 外径が0.4〜1.0mm程度のステンレスの
編み線に約2〜3ミクロンの金メッキをしたもの(5)
を温度センサーのリード線として使用する。 (ロ) 上記の編み線を細い圧着用の真鍮パイプ(8)
に通して、その一端に固い結び目(6)をつくり、真鍮
パイプの反対側から白金測温抵抗体(3)のリード線
(4)を挿入して圧着する。 (ハ) 口の部分に中タップ(2)をほどこした保護管
(1)に上記の白金測温抵抗体とステンレスのリード線
を収める。 (ニ) ステンレスのリード線に絶縁収縮チューブ
(7)を装着する。 (ホ) 保護管内をエポキシ樹脂(9)によって強固に
接着する。 本案は以上のような構造をもつ温度センサーである。 (ヘ) リード線にステンレスの編み線を用いるのは金
属疲労を起しにくく、かつ、遠心力による引っ張りに耐
えるためである。ちなみに、外径が0.75mmのステ
ンレスの編み線の破断力は47kgといわれている。 (ト) ステンレスの編み線に金メッキをほどこしたの
は、電気抵抗を下げるためである。外径0.75mm
長さ150mmのステンレスの編み線に1ミクロンの金
メッキをほどこした場合、その抵抗は約0.5Ωとな
る。これをリード線として温度測定をすると、従来の銅
の撚り線に比して2〜3℃高く表示されるが、これは温
調器の補正機構を用いて修正することができる。 (チ) ステンレス編み線の結び目(6)および中タッ
プ(2)は、遠心力によって保護管からリード線が抜け
落ちることを防ぐためである。 (リ) 従来の温度センサーは保護管の中をマグネシア
で充填するのが一般であったが、本考案ではマグネシア
を用いずエポキシ樹脂を充填する。これは遠心エバポレ
ーターの場合、高温で使用することがなく(通常−10
〜+40℃程度)、一方遠心力に耐える強度が必要なた
めである。
EXAMPLES Examples of the present invention will be described below. (A) Stainless steel braiding wire having an outer diameter of 0.4 to 1.0 mm and gold plating of about 2 to 3 microns (5)
Is used as the lead wire of the temperature sensor. (B) Brass pipe for crimping the above braided wire (8)
Then, a hard knot (6) is formed at one end of the same, and the lead wire (4) of the platinum resistance thermometer (3) is inserted from the opposite side of the brass pipe and crimped. (C) The platinum resistance thermometer sensor and the stainless steel lead wire are placed in a protective tube (1) having a tap (2) at the mouth. (D) Attach the insulation shrink tube (7) to the stainless steel lead wire. (E) The inside of the protective tube is firmly adhered with the epoxy resin (9). The present invention is a temperature sensor having the above structure. (F) The reason why the stainless braided wire is used for the lead wire is that metal fatigue is unlikely to occur and the tensile strength due to centrifugal force is endured. By the way, the breaking force of a stainless steel braid having an outer diameter of 0.75 mm is said to be 47 kg. (G) The reason why the stainless steel braided wire is plated with gold is to reduce the electric resistance. Outer diameter 0.75 mm
When a stainless steel braided wire having a length of 150 mm is plated with 1 micron of gold, the resistance is about 0.5Ω. When the temperature is measured using this as a lead wire, it is displayed as higher than the conventional copper stranded wire by 2 to 3 ° C., but this can be corrected by using the correction mechanism of the temperature controller. (H) The knot (6) and the middle tap (2) of the stainless braided wire are for preventing the lead wire from falling out of the protective tube due to centrifugal force. (I) In the conventional temperature sensor, the inside of the protective tube was generally filled with magnesia, but in the present invention, epoxy resin is filled without using magnesia. In the case of a centrifugal evaporator, this is not used at high temperature (usually -10
On the other hand, the strength is required to withstand centrifugal force.

【0007】[0007]

【発明の効果】回転中の試験管内の資料溶媒の温度測定
のため、1000rpm以上の回転に長時間にわたって
耐えることができる温度センサーが可能となる。
EFFECT OF THE INVENTION Since the temperature of the sample solvent in the rotating test tube is measured, a temperature sensor capable of withstanding a rotation of 1000 rpm or more for a long time becomes possible.

【図面の簡単な説明】[Brief description of drawings]

【図 1】 本発明の断面図である。1 is a cross-sectional view of the present invention.

【符号の説明】[Explanation of symbols]

1. 保護管 2. 中タップ 3. 白金測温抵抗体 4. 抵抗体リード線 5. 金メッキをしたステンレスの編み線 6. 固い結び目 7. 絶縁収縮チューブ 8. 圧着用真鍮パイプ 9. エポキシ樹脂 1. Protective tube 2. Medium tap 3. Platinum resistance thermometer 4. Resistor lead wire 5. Gold-plated stainless steel braid 6. Tight knot 7. Insulation shrink tube 8. Brass pipe for crimping 9. Epoxy resin

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】金メッキをほどこしたステンレスの編み線
(5)をリード線として使用し、その一端を細い圧着用
真鍮パイプ(8)に通して、固い結び目(6)を作り、
真鍮パイプの反対側から白金測温抵抗体(3)のリード
線(4)を挿入したあと圧着し、口の部分に中タップ
(2)を施した保護管(1)に収め、絶縁収縮チューブ
(7)を金メッキをほどこしたステンレスの編み線
(5)に装着し、保護管内をエポキシ樹脂(9)によっ
て強く固めることを特徴とする温度センサー。
1. A gold-plated stainless braid (5) is used as a lead wire, and one end of the braided wire is passed through a thin brass pipe for crimping (8) to form a hard knot (6).
Insert the lead wire (4) of the platinum resistance thermometer (3) from the opposite side of the brass pipe, crimp it, and put it in the protective tube (1) with the middle tap (2) at the mouth, and then the insulation shrink tube A temperature sensor characterized in that (7) is mounted on a gold-plated stainless braided wire (5), and the inside of the protective tube is strongly solidified with an epoxy resin (9).
JP17716393A 1993-06-11 1993-06-11 Temperature sensor Pending JPH06347339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17716393A JPH06347339A (en) 1993-06-11 1993-06-11 Temperature sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17716393A JPH06347339A (en) 1993-06-11 1993-06-11 Temperature sensor

Publications (1)

Publication Number Publication Date
JPH06347339A true JPH06347339A (en) 1994-12-22

Family

ID=16026288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17716393A Pending JPH06347339A (en) 1993-06-11 1993-06-11 Temperature sensor

Country Status (1)

Country Link
JP (1) JPH06347339A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007024521A (en) * 2005-07-12 2007-02-01 Fuji Electric Systems Co Ltd Ultrasonic doppler velocity profiler
CN105784181A (en) * 2016-04-21 2016-07-20 诸琢玉 Temperature apparatus capable of measuring and controlling linear length and method thereof
US9927303B2 (en) 2014-01-21 2018-03-27 Okazaki Manufacturing Company Temperature sensor for high temperature

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007024521A (en) * 2005-07-12 2007-02-01 Fuji Electric Systems Co Ltd Ultrasonic doppler velocity profiler
JP4687293B2 (en) * 2005-07-12 2011-05-25 富士電機システムズ株式会社 Doppler ultrasonic flow velocity distribution meter
US9927303B2 (en) 2014-01-21 2018-03-27 Okazaki Manufacturing Company Temperature sensor for high temperature
CN105784181A (en) * 2016-04-21 2016-07-20 诸琢玉 Temperature apparatus capable of measuring and controlling linear length and method thereof
CN105784181B (en) * 2016-04-21 2018-04-06 诸琢玉 The temperature device and its method of measurement control line length

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