JPH0629794B2 - Temperature detector - Google Patents
Temperature detectorInfo
- Publication number
- JPH0629794B2 JPH0629794B2 JP62070208A JP7020887A JPH0629794B2 JP H0629794 B2 JPH0629794 B2 JP H0629794B2 JP 62070208 A JP62070208 A JP 62070208A JP 7020887 A JP7020887 A JP 7020887A JP H0629794 B2 JPH0629794 B2 JP H0629794B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- resistor
- temperature detector
- heater resistor
- film
- 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.)
- Expired - Fee Related
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
【発明の詳細な説明】 〔産業上の利用技術分野〕 この発明は感温部を板状に形成し、測温抵抗体の面抵抗
性を利用する温度検出装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a temperature detecting device in which a temperature sensing portion is formed in a plate shape and the surface resistance of a resistance temperature detector is utilized.
従来この種の温度検出装置は第３図に示すように、芯体
２１にニツケルまたは白金からなる線状の測温抵抗体２
３をコイル状に巻装し、これを通気孔２４を有する百葉
箱状のサーモバツクス２５内に設置し、測温抵抗体２３
の抵抗値から対応する温度を知るようになつている。そ
してその装置の性格上、測温抵抗体２３の表面を通過す
る対流によつてその温度を検出している。通常測温抵抗
体２３は第４図示すようにこの測温抵抗体を１辺とし、
抵抗Ｒ１，Ｒ２，Ｒ３とともにブリツジ回路１１を形成
し、この回路の出力を演算増幅器２６により増幅して、
その出力端Ｖｏより温度信号を得ている。すなわちこの
従来の温度検出装置においては空気温度計測形であるた
め、輻射熱に対しては応答性が悪い。As shown in FIG. 3, a conventional temperature detecting device of this type has a linear temperature measuring resistor 2 made of nickel or platinum on a core 21.
3 is wound in a coil shape and installed in a thermo-box 25 in the shape of a hundred-leaf box having a ventilation hole 24.
The corresponding temperature is known from the resistance value of. Due to the nature of the device, the temperature is detected by convection passing through the surface of the resistance temperature detector 23. As shown in FIG. 4, the normal resistance temperature detector 23 has this resistance temperature detector as one side,
The bridge circuit 11 is formed with the resistors R1, R2 and R3, and the output of this circuit is amplified by the operational amplifier 26.
To obtain a temperature signal from its output V o. That is, since this conventional temperature detecting device is of the air temperature measuring type, it has poor response to radiant heat.
一般に冷熱物体の出現は急激であるが、これからの輻射
熱で空気温度を変化させるにはかなりの時間を必要とす
る。なお輻射熱としてはたとえばカーテンやブラインド
の開閉による戸外の生物や物体からの輻射、人や器物等
の冷熱物体の室内に対する出入り、あるいは壁，床，家
具の温度等があり、従来これらの輻射熱を無視していた
ために人間の温度感覚との間にずれを生ずる。In general, the appearance of cold objects is rapid, but it takes a considerable amount of time to change the air temperature by the radiant heat from this. Note that radiant heat includes, for example, radiation from outdoor living things and objects by opening and closing curtains and blinds, entrance and exit of cold objects such as people and objects into and out of the room, and temperature of walls, floors, furniture, etc. Conventionally, these radiant heats are ignored. As a result, there is a gap between the human and the sense of temperature.
また測温抵抗体２３として高価な金属を比較的多く用い
るため、温度センサーの価格も高く、しかも比較的多形
で、かつサーモボツクス２５はこれを壁面に取付けるば
あい、その突出量が大きい欠点がある。Further, since a relatively large amount of expensive metal is used as the resistance temperature detector 23, the price of the temperature sensor is high, and the temperature sensor is relatively polymorphic, and if the thermobox 25 is mounted on the wall surface, the protrusion amount is large. There is.
この発明はこのような従来の欠点にかんがみ、小形で、
とくに壁面からの突出寸法が少なく、しかも輻射熱に対
する応答性が高く、かつ人間の温度感覚に近い温度測定
を行うとともに、安価な温度検出装置を提供することを
目的とする。The present invention is small in size in view of such conventional drawbacks.
In particular, it is an object of the present invention to provide a low temperature detecting device which has a small protrusion size from a wall surface, has a high responsiveness to radiant heat, and is capable of performing temperature measurement close to human's sense of temperature.
この発明はその目的を達成するために、膜状のヒーター
抵抗体と膜状の測温抵抗体を絶縁体を介して層状に形成
し、かつ測温抵抗体の温度が一定となるようにヒーター
抵抗体に供給する電力が制御するようにしたもので、こ
れによつて輻射熱に対する応等性がきわめて良好とな
り、信頼性の高い、かつ壁面に対する取付けに当り、そ
れからの突出寸法を小さくすることができる。In order to achieve the object, the present invention forms a film-shaped heater resistor and a film-shaped resistance temperature detector in layers through an insulator, and a heater so that the temperature of the resistance temperature detector becomes constant. The electric power supplied to the resistor is controlled, which makes the adaptability to radiant heat extremely good, and it is highly reliable and can be mounted on a wall surface, and the protrusion size from it can be made small. it can.
以下図によつてこの発明の一実施例について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
すなわち第１図において基板１は壁面等に対する取付け
板を兼ねるための熱絶縁性および電気絶縁性の高い材料
により形成される。この基板上にはヒーター抵抗体２が
層状に形成される。またこのヒーター抵抗体上には板状
の絶縁体３が密着して配設される。さらにこの絶縁体上
にはニツケルあるいは白金等からなる膜状の測温抵抗体
４が厚膜印刷あるいは薄膜スパツタにより層状に形成さ
れる。なおこの測温抵抗体上には必要に応じてこの表面
を保護するとともに輻射熱の吸収率を調整する保護膜
（図に示してない）を設けることができる。That is, in FIG. 1, the substrate 1 is formed of a material having a high heat insulating property and a high electric insulating property which also serves as a mounting plate for a wall surface or the like. The heater resistor 2 is formed in layers on this substrate. In addition, a plate-shaped insulator 3 is disposed in close contact with the heater resistor. Further, a film-shaped resistance temperature detector 4 made of nickel, platinum or the like is formed in layers on the insulator by thick film printing or thin film sputtering. A protective film (not shown) for protecting the surface and adjusting the absorption rate of radiant heat can be provided on the resistance temperature detector as required.
そして測温抵抗体４は抵抗Ｒ１，Ｒ２，Ｒ３とともにブ
リツジ回路１１を形成し、電源１２に接続され、その出
旅端は演算増幅器１３の入力端に接続される。なおＲ４
は演算増幅器１３の利得設定用抵抗である。さらに演算
増幅器１３の出力端にはヒーター抵抗体２の一端が接続
され、このヒーター抵抗体の他端は出力端Ｖｏに接続さ
れ、この出力端から温度信号を得る。なおＲ５は電流−
電圧変換抵抗である。Then, the resistance temperature detector 4 forms a bridge circuit 11 together with the resistors R1, R2 and R3 and is connected to the power supply 12, the outgoing end of which is connected to the input end of the operational amplifier 13. R4
Is a gain setting resistor of the operational amplifier 13. Further to the output terminal of the operational amplifier 13 is connected to one end of the heater resistor 2, the other end of the heater resistor is connected to the output terminal V o, obtaining a temperature signal from the output terminal. R5 is the current-
It is a voltage conversion resistor.
第２図において測温抵抗体３が対流あるいは輻射熱を受
けてその抵抗値が変化すると、ブリツジ回路１１の出力
が変化し、これによつて演算増幅器１３はその基準値に
対する信号を出す。この信号出力値に応じてヒーター抵
抗体２に供給される電力が変化し、測温度抵抗体４の温
度を一定に保つ。そしてヒーター抵抗体２に与えられた
電力に応じた出力すなわち温度信号が出力端Ｖｏから得
られる。In FIG. 2, when the resistance value of the resistance temperature detector 3 changes due to convection or radiant heat, the output of the bridge circuit 11 changes, which causes the operational amplifier 13 to output a signal corresponding to the reference value. The power supplied to the heater resistor 2 changes according to this signal output value, and the temperature of the temperature measuring resistor 4 is kept constant. The output or temperature signal corresponding to the power given to the heater resistor 2 is obtained from the output terminal V o.
この発明は上述のように、絶縁性の基板上に膜状のヒー
ター抵抗体を、さらにこのヒター抵抗体上に絶縁体を介
して膜状の測温抵抗体をそれぞれ層状に形成し、測温抵
抗体の温度を一定に保つようにヒーター抵抗体の供給電
力を制御するようにしているので、対流による熱はもと
より輻射熱に対する応答がきわめてよく、人間の温度感
覚に近い状態の温度を測定でき、したがつて信頼性の高
い、しかも壁面に対する取付けに当り、それからの突出
寸法を小さくすることができる効果がある。As described above, according to the present invention, the film heater resistor is formed on the insulating substrate, and the film resistance temperature detector is formed in layers on the heater resistor via the insulator to measure the temperature. Since the electric power supplied to the heater resistor is controlled so as to keep the temperature of the resistor constant, the response to radiant heat as well as heat from convection is extremely good, and it is possible to measure the temperature in a state close to human temperature perception. Therefore, there is an effect that it is highly reliable and that it can be mounted on a wall surface and the protrusion dimension from it can be reduced.
第１図はこの発明における温度検出装置の一実施例を示
す斜視図、第２図は回路図、第３図は従来の温度検出装
置の分解斜視図、第４図は回路図である。 １……基板、２……ヒーター抵抗体、３……絶縁体、４
……測温抵抗体、１１……ブリツジ回路、１２……電
源、１３……演算増幅器。1 is a perspective view showing an embodiment of a temperature detecting device according to the present invention, FIG. 2 is a circuit diagram, FIG. 3 is an exploded perspective view of a conventional temperature detecting device, and FIG. 4 is a circuit diagram. 1 ... Substrate, 2 ... Heater resistor, 3 ... Insulator, 4
...... Resistance temperature detector, 11 …… Bridge circuit, 12 …… Power supply, 13 …… Operational amplifier.
Claims (1)
のヒーター抵抗体と、このヒーター抵抗体上に絶縁体を
介して層状に設けた膜状の測温抵抗体と、この測温抵抗
体を含むブリッジ回路とを備え、上記ヒーター抵抗体の
一端を上記ブリッジ回路の出力端に接続し他端を温度信
号を得る出力端に接続したことを特徴とする温度検出装
置。1. A film-shaped heater resistor provided on a thermally and electrically insulating substrate, a film-shaped temperature measuring resistor provided in layers on the heater resistor via an insulator, and A bridge circuit including a temperature resistor, wherein one end of the heater resistor is connected to an output end of the bridge circuit and the other end is connected to an output end for obtaining a temperature signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070208A JPH0629794B2 (en) | 1987-03-26 | 1987-03-26 | Temperature detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070208A JPH0629794B2 (en) | 1987-03-26 | 1987-03-26 | Temperature detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63236935A JPS63236935A (en) | 1988-10-03 |
| JPH0629794B2 true JPH0629794B2 (en) | 1994-04-20 |
Family
ID=13424877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62070208A Expired - Fee Related JPH0629794B2 (en) | 1987-03-26 | 1987-03-26 | Temperature detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629794B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10065723A1 (en) * | 2000-12-29 | 2002-07-04 | Bosch Gmbh Robert | Arrangement for temperature measurement and control |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433548B2 (en) * | 1974-03-25 | 1979-10-22 | ||
| JPS6288928A (en) * | 1985-10-15 | 1987-04-23 | Japan Sensor Corp:Kk | Heating and temperature measuring instrument for thermosensitive element |
| JPS62238429A (en) * | 1986-04-10 | 1987-10-19 | Matsushita Electric Works Ltd | Temperature sensor |
-
1987
- 1987-03-26 JP JP62070208A patent/JPH0629794B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63236935A (en) | 1988-10-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |