JPH01288743A - Temperature sensor - Google Patents
Temperature sensorInfo
- Publication number
- JPH01288743A JPH01288743A JP11966488A JP11966488A JPH01288743A JP H01288743 A JPH01288743 A JP H01288743A JP 11966488 A JP11966488 A JP 11966488A JP 11966488 A JP11966488 A JP 11966488A JP H01288743 A JPH01288743 A JP H01288743A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- tube
- pressure
- hydrogen
- 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
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000001257 hydrogen Substances 0.000 claims abstract description 26
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 1
- 239000000956 alloy Substances 0.000 description 14
- 229910045601 alloy Inorganic materials 0.000 description 14
- 239000011232 storage material Substances 0.000 description 13
- 239000000843 powder Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000006903 response to temperature Effects 0.000 description 2
- 229910000809 Alumel Inorganic materials 0.000 description 1
- 229910014459 Ca-Ni Inorganic materials 0.000 description 1
- 229910014473 Ca—Ni Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 101000589423 Homo sapiens Proapoptotic nucleolar protein 1 Proteins 0.000 description 1
- 102100032331 Proapoptotic nucleolar protein 1 Human genes 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】
くイ）産業上の利用分野
本発明は、温度変化により水素を可逆的に吸蔵、放出し
、得る水素吸蔵物質を用いた温度センサーに関する。DETAILED DESCRIPTION OF THE INVENTION B) Industrial Application Field The present invention relates to a temperature sensor using a hydrogen storage material that reversibly stores and releases hydrogen in response to temperature changes.
（口〉 従来の技術
現在、温度センサーとしては、例えば物質の熱膨張を利
用する水銀温度計、アルコール温度計、熱起電力を利用
するクロメル−アルメル等の熱電対、或いは物質の温度
による抵抗変化を利用する白金抵抗体等が存在する。こ
れらの温度ヒンサーは、何れもその温度センサーの配置
された空間の一点における温度変化を検知することに止
まり、空間領域全体での温度変化を検知する為には複数
個の温度センサーを該当空間内の数ケ所に配置する必要
があった。(Example) Conventional technology At present, temperature sensors include, for example, mercury thermometers and alcohol thermometers that utilize the thermal expansion of substances, thermocouples such as chromel-alumel that utilize thermoelectromotive force, or resistance changes due to temperature of substances. There are platinum resistors, etc. that utilize the temperature sensor.All of these temperature sensors only detect temperature changes at one point in the space where the temperature sensor is placed; It was necessary to place multiple temperature sensors at several locations within the relevant space.
（ハ） 発明が解決しようとする課題
本発明は上記の点に鑑みなされたもので、広がりをもっ
た空間領域内の任意の部分に局所的な温度変化がある場
合でも、これを検知し得る温度センサーを提供すること
を目的とする。(c) Problems to be Solved by the Invention The present invention has been made in view of the above points, and even if there is a local temperature change in any part within a wide spatial area, it can be detected. The purpose is to provide a temperature sensor.
（ニ）課題を解決するための手段
このため、本発明は、熱伝導良好な材料から成る中空円
筒管内に、温度変化により水素を可逆的に吸蔵、放出し
得る水素吸蔵物質を水素ガスと共に気密封入すると共に
、該円筒管内の圧力変化を検知し得る圧力センサーを備
えている。(d) Means for Solving the Problems Therefore, the present invention provides a hydrogen storage material that can reversibly store and release hydrogen according to temperature changes in a hollow cylindrical tube made of a material with good thermal conductivity, in an airtight manner along with hydrogen gas. The cylindrical tube is sealed with a pressure sensor capable of detecting pressure changes within the cylindrical tube.
（ホ） 作用
広がりをもった空間領域内に配置された本発明の温度セ
ンサーの中空円筒管のどこかの部分に温度変化が生じる
と、中空円筒管内の水素吸蔵物質に水素吸蔵放出反応が
起こって圧力変化が生じ、これが圧力センサーにより検
出され、該当空間領域内の温度変化が検知される。(e) When a temperature change occurs in any part of the hollow cylindrical tube of the temperature sensor of the present invention, which is placed in a spatial region with a wide range of action, a hydrogen storage/release reaction occurs in the hydrogen storage material within the hollow cylindrical tube. A pressure change occurs, which is detected by a pressure sensor, and a temperature change within the corresponding spatial region is detected.
（へ）実施例
以ドに本発明の実施例を記す、第１図は本発明の温度セ
ンサーの外観図を示しており、（１）は熱伝導良好で容
易に折り曲げ可能な材料、例えばステンレススチール製
の中空円筒管で、その一端に該管（１）内の圧力を検出
する、歪ゲージ式や半導体式などの圧力センサー（２）
が取り付けられている。（３）はこの管（１）内を排気
すると同時に水素ガスを導入する導入、排気穴で、パル
プ（４）を備えている。この管く１）内には第２図の拡
大断面図に示す如く、１００メツシユ程度に粉砕された
水素吸蔵物質合金粉末（５）が充填されている。具体的
には、中空円筒管（１〉の内径は約１ｎｌＩ１１１長さ
は約１ｍであり、水素吸蔵物質としては１ａＮｉｓ合金
が用いられ、中空円筒管（１）内には約２１＆充填され
ている。(v) Examples Examples of the present invention are described below. Fig. 1 shows an external view of the temperature sensor of the present invention. A hollow cylindrical tube made of steel, with a pressure sensor (2) such as a strain gauge type or semiconductor type at one end that detects the pressure inside the tube (1).
is installed. (3) is an introduction and exhaust hole for evacuating the inside of this pipe (1) and introducing hydrogen gas at the same time, and is equipped with a pulp (4). As shown in the enlarged sectional view of FIG. 2, this tube 1) is filled with hydrogen storage material alloy powder (5) pulverized into about 100 mesh pieces. Specifically, the inner diameter of the hollow cylindrical tube (1) is approximately 1nlI111, the length is approximately 1m, 1aNis alloy is used as the hydrogen storage material, and the hollow cylindrical tube (1) is filled with approximately 21 .
そして上記導入、排気穴（３）を介して中空円筒管（１
）内を排気した後、水素ガスを導入し、この操作を数回
繰り返し、”℃水素吸蔵物質合金粉末（５）を活性化し
、最後に中空円筒管（１）内の圧力を約４ ａｔｍとし
てパルプ（４）を閉じて本発明に係る温度センナ−を完
成する。Then, the hollow cylindrical tube (1) is passed through the introduction and exhaust hole (3).
) After evacuating the inside, hydrogen gas was introduced, and this operation was repeated several times to activate the hydrogen storage material alloy powder (5).Finally, the pressure inside the hollow cylindrical tube (1) was set to about 4 atm. The pulp (4) is closed to complete the temperature sensor according to the present invention.
尚、中空円筒管内への水素吸蔵物質の充填は、太い中空
円筒管内部に予め水素吸蔵物質を充填した後、これを所
望の細さまで線引きする方法も有効であろう、また中空
円筒管（１）の内径及び長さも用途に応じて任意に設定
可使である。更に水素吸蔵物質としては、水素吸蔵量の
変化に対して圧力が変化しない領域、即ちプラトー領域
を示す物質、例えば希土類−Ｎｉ基合金、Ｃａ−Ｎｉ基
合金、Ｔｔ基合金、Ｚｒ基合金、Ｍｇ基合金、Ｖ基合金
が一様に用い得る。In addition, for filling the hydrogen storage material into the hollow cylindrical tube, it may be effective to fill the inside of the thick hollow cylindrical tube with the hydrogen storage material in advance and then draw it to the desired thinness. ) can be set arbitrarily depending on the purpose. Further, as the hydrogen storage material, materials exhibiting a region in which the pressure does not change with respect to changes in the amount of hydrogen storage, that is, a plateau region, such as rare earth-Ni-based alloys, Ca-Ni-based alloys, Tt-based alloys, Zr-based alloys, Mg-based alloys, etc. Base alloys and V-base alloys can be uniformly used.
次に、以上の様にして作成した本発明の温度センサーの
温度変化の検知機能を明らかにするため以下のような実
験を行った。即ち、第１図に示す中空円筒管（１）の適
当な１箇所Ａ点を長さ１ｃｍ程度の範囲を加熱し、その
時の中空円筒管〈１）内の圧力変化を圧力センサー（２
）を用いて測定した。Next, in order to clarify the temperature change detection function of the temperature sensor of the present invention created as described above, the following experiment was conducted. That is, a suitable point A of the hollow cylindrical tube (1) shown in FIG.
).
この結果、第３図に示すように温度４０〜６０℃の間で
圧力が急激に上昇し、温度変化が検知されることがわか
る。As a result, as shown in FIG. 3, it can be seen that the pressure increases rapidly between temperatures of 40 to 60 DEG C., and a temperature change is detected.
この温度検知メカニズムについてｍ８Ｊｌておく、中空
円筒管（１）の一部でも加熱されると、その内部にある
水素吸蔵物質合金粉末（５）が水素ガスを放出し、その
結果、中空円筒管（１）内圧力が上昇し、その圧力を圧
力センサー（２）が検出するのである。About this temperature detection mechanism, let's say that when even a part of the hollow cylindrical tube (1) is heated, the hydrogen storage material alloy powder (5) inside it releases hydrogen gas, and as a result, the hollow cylindrical tube (1) is heated. 1) The internal pressure increases and the pressure sensor (2) detects this pressure.
尚、中空円筒管（１）内の水素圧力及び充填する水素吸
蔵物質合金粉末（５）を適当に選択することにより、温
度変化を検知する温度領域は任意に調整することができ
る。The temperature range in which temperature changes are detected can be arbitrarily adjusted by appropriately selecting the hydrogen pressure in the hollow cylindrical tube (1) and the hydrogen storage substance alloy powder (5) to be filled.
具体的には、水素吸蔵物質合金粉末〈５）として、Ｌａ
Ｎ１ａ、＊Ａ１ｅ、＋を使用した場合にはＳＯ〜１００
“Ｃの温度センサーとなり、ＺｒＭｎ＊を用いると２０
０〜２５０℃の温度センサーが得られ、まりＭ ｇ ｘ
Ｎ ｉ ヲ使用すルト４００〜５００”Ｃ（７）ｆｆ
ｉ温ができる。Specifically, as the hydrogen storage material alloy powder <5), La
SO~100 when using N1a, *A1e, +
“C temperature sensor, if ZrMn* is used, 20
A temperature sensor from 0 to 250°C is obtained, and the temperature sensor is M g x
N i wo bolt 400~500"C(7)ff
I can feel warm.
以上の様に、本発明の温度センサーは、中空円筒管（１
）の任意の部分に温度変化が起こってもこれを検知する
ことができる為、これを適当に折り曲げるなど所望の形
にすることにより、広がりを持った空間領域内の何れか
の部分に温度変化が起こってもこれを検知することが可
能となる。As described above, the temperature sensor of the present invention has a hollow cylindrical tube (1
) can be detected even if a temperature change occurs in any part of it, so by bending it appropriately or forming it into a desired shape, you can detect a temperature change in any part of a wide spatial area. Even if something happens, it can be detected.
第４図に、上記の本発明に係る温度センサーをポンプの
発熱状態のモニター用として使用した例を示す、ポンプ
には、ポンプ本体（６）、モニター部（７）、配管（８
）、ｔＲコード（９）等の発熱源があるが、本発明の温
度センサー（１０）をこれらの発熱源の近傍に沿わせる
ことにより、発熱源のいずれかが何らかの異常により過
熱しても直ちにこれを検知することができる。FIG. 4 shows an example in which the temperature sensor according to the present invention is used to monitor the heat generation state of the pump.
), tR code (9), etc., but by placing the temperature sensor (10) of the present invention near these heat sources, even if any of the heat sources overheats due to some abnormality, it will be detected immediately. This can be detected.
また、中空円筒管（１）に取り付ける圧力センサーとし
て、設定圧力に対して、電気接点の開閉が可能な所謂、
圧力スイッチを用いて、これにより発熱源となる機器の
ｔ源の開閉を行うことにより、極めてＭ頼性の高い過熱
防止機構を容易に構成することができる。In addition, as a pressure sensor attached to the hollow cylindrical tube (1), a so-called so-called pressure sensor whose electrical contacts can be opened and closed according to the set pressure is used.
By using a pressure switch to open and close the t source of a device that is a heat source, an overheat prevention mechanism with extremely high M reliability can be easily constructed.
（ト） 発明の効果
本発明は以上の説明から明らかな如く、熱伝導良好な材
料から成る中空円筒管内に、温度変化により水素を可逆
的に吸蔵５放出し得る水素吸蔵物質を水素ガスと共に気
密封入すると共に、該円筒管内の圧力変化を検知し得る
圧力センサーを備えているので、中空円筒管の何れかの
個所が加熱されてもそのことが検出でき、例えば常に過
熱の危険性のあるＷＬ雑な形状をしたポンプ等の機器や
、電源トランス、パ”ノーＩＣ等の複数個の発熱Ｒを有
する電子機器内に発熱源となる部位の過熱状態を嘔−の
センサーで検出可能となる。(g) Effects of the Invention As is clear from the above description, the present invention includes a hydrogen storage material that can reversibly absorb and release hydrogen in response to temperature changes in a hollow cylindrical tube made of a material with good thermal conductivity, along with hydrogen gas in an airtight manner. Since it is sealed and equipped with a pressure sensor that can detect pressure changes inside the cylindrical tube, it can be detected even if any part of the hollow cylindrical tube is heated. It becomes possible to detect an overheated state of a part that is a heat source in a roughly shaped device such as a pump, or an electronic device that has a plurality of heat generating elements such as a power transformer or a PANO IC using a sensor.
４、 ｌｌｌＪ面の簡単な説明
第１図は本発明温度センサーの外観図、第２図はその要
部の拡大断面図、第３図は本発明温度センサーの温度と
内部圧力との関係曲線図、第４図は本発明温度センサー
の応用例を示した斜視図である。4. Brief explanation of lllJ surface Figure 1 is an external view of the temperature sensor of the present invention, Figure 2 is an enlarged sectional view of its main parts, and Figure 3 is a diagram of the relationship curve between temperature and internal pressure of the temperature sensor of the present invention. , FIG. 4 is a perspective view showing an example of application of the temperature sensor of the present invention.
（１）・・・・中空円筒管、 （２）・・・圧力センサー、 （５）・・・・水素吸蔵物質合金粉末。(1)...Hollow cylindrical tube, (2)...pressure sensor, (5)...Hydrogen storage material alloy powder.
第２図 第３図 湯度 （’Ｃ） 第４図 手続補正書（自発）Figure 2 Figure 3 Temperature (’C) Figure 4 Procedural amendment (voluntary)
Claims (1)
変化により水素を可逆的に吸蔵、放出し得る水素吸蔵物
質を水素ガスと共に気密封入すると共に、該円筒管内の
圧力変化を検知し得る圧力センサーを備えて成る温度セ
ンサー。(1) In a hollow cylindrical tube made of a material with good thermal conductivity, a hydrogen storage substance that can reversibly store and release hydrogen according to temperature changes is hermetically sealed together with hydrogen gas, and pressure changes within the cylindrical tube can be detected. A temperature sensor that includes a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11966488A JPH01288743A (en) | 1988-05-17 | 1988-05-17 | Temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11966488A JPH01288743A (en) | 1988-05-17 | 1988-05-17 | Temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01288743A true JPH01288743A (en) | 1989-11-21 |
Family
ID=14767011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11966488A Pending JPH01288743A (en) | 1988-05-17 | 1988-05-17 | Temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01288743A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769226A (en) * | 1980-10-17 | 1982-04-27 | Sekisui Chem Co Ltd | Sensing device for temperature |
-
1988
- 1988-05-17 JP JP11966488A patent/JPH01288743A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769226A (en) * | 1980-10-17 | 1982-04-27 | Sekisui Chem Co Ltd | Sensing device for temperature |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3122728A (en) | Heat detection | |
| Mayer et al. | Heat and mass transfer in metal hydride reaction beds: experimental and theoretical results | |
| Knittle et al. | The high‐pressure phase diagram of Fe0. 94O: A possible constituent of the Earth's core | |
| Davidson et al. | Differential thermal analysis of polyethylene under high pressure | |
| JP2006317196A (en) | Hydrogen gas sensor | |
| Schmutzler et al. | The thermoelectric power of fluid mercury in the density range of the metal nonmetal transition | |
| Benson et al. | Design of a variable-conductance vacuum insulation | |
| JPH01288743A (en) | Temperature sensor | |
| Ramakumar et al. | Experimental evaluation of procedures for heat capacity measurement by differential scanning calorimetry | |
| MacNeil et al. | A novel hermetic differential scanning calorimeter (DSC) sample crucible | |
| Domalski et al. | Heat of formation of aluminum fluoride by direct combination of the elements | |
| Murari et al. | An upgraded brazing technique to manufacture ceramic-metal joints for UHV applications | |
| US3153847A (en) | Method of making heat sensors | |
| CN1327202C (en) | Temperature sensor based on disordered multi-wall carbon nano-tube and metal heterojunction | |
| Fine et al. | Thermal effects accompanying spontaneous ignitions in gases III. The explosive decomposition of diethyl peroxide | |
| Tsuji et al. | Electrical Conductivity and Thermoelectric Power of Expanded Mercury and Dilute Amalgams. I. Hg and Cd Amalgams | |
| US5244638A (en) | High pressure furnace | |
| Glawe et al. | Long term drift of some noble and refractory metal thermocouples at 1600 K in air, argon, and vacuum | |
| JPH01320477A (en) | Abnormal overheat detector | |
| Lundin et al. | Solid state hydrogen storage materials for application to energy needs | |
| JPS5817326A (en) | Device for detecting temperature in container | |
| US3177479A (en) | Heat detection apparatus | |
| US3382048A (en) | Method of pretreating metallic hydrides | |
| JP2005274278A (en) | Temperature sensor and warning device using same | |
| Wilsmann et al. | Design and characteristics of a differential calorimeter for high-temperature measurements |