JPS60214020A - Constant temperature control system - Google Patents
Constant temperature control systemInfo
- Publication number
- JPS60214020A JPS60214020A JP6902884A JP6902884A JPS60214020A JP S60214020 A JPS60214020 A JP S60214020A JP 6902884 A JP6902884 A JP 6902884A JP 6902884 A JP6902884 A JP 6902884A JP S60214020 A JPS60214020 A JP S60214020A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- magnetic core
- constant temperature
- magnetic cores
- control system
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/26—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a permeability varying with temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は恒温制御方式に係り、特に成る設定温度に対し
他の因子の変動の影響を受けることなく、正確に恒温制
御ケ行うことが出来る恒温制御方式〔発明の背景〕
従来の恒温制御方式は測度抵抗体方式、に見られるよう
に測温部と制御回路部金接続するリード線抵抗金も考慮
のとその補償？充分企る必要がある上、一般に制御方式
が複雑である。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a constant temperature control method, and particularly to a constant temperature control system that can accurately control a constant temperature without being affected by fluctuations in other factors with respect to a set temperature. Control method [Background of the invention] The conventional constant temperature control method is a resistance measuring element method.As seen in the conventional constant temperature control method, the lead wire resistance metal that connects the temperature measuring part and the control circuit part is also taken into consideration and its compensation? In addition to requiring thorough planning, the control system is generally complex.
本発明は構成簡単な上、正確な温健制御方式ケ提供する
ことにある。The object of the present invention is to provide a simple and accurate temperature control system.
本発明の動機となった事項は下記のことによる。 The motivation for the present invention is as follows.
（１）磁心の透磁率がキュリ一点に於いて急激に変化す
る上、物理現象に礎づく故地の因子の影響ケ受けること
なく一義的に定る。(1) The magnetic permeability of the magnetic core changes rapidly at a single Curie point, and is uniquely determined without being affected by local factors based on physical phenomena.
（２）磁心成分の組合せ比率ケ変えることによって任意
のキュリ一点？有する磁心會作り出すことが容易に出来
る。(2) Is it possible to create a single point by changing the combination ratio of magnetic core components? It is easy to create a magnetic core assembly with
以下、本発明の一実施例ケ図にエリ説明する。 Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.
第３図に本発明の回路の構成ケ示す。図に於て１．２は
第１図に示すようなキュリ一点が夫々異なり矩形履歴特
性？有する磁心ｓｒｔ、、ｓｎ、、、３は励磁のための
電源、４は制御インピーダンス、５は磁心の二次巻線に
訪起される電圧を受け誘起電圧が成るレベル以上出力し
ている場合次段の回路？導通状態とさせるようなゲート
回路、６は１回路溝通状態時加熱状態となるヒータ部、
７は■回路導通状態時冷却状態となる冷却部、８はＩ。FIG. 3 shows the configuration of the circuit of the present invention. In the figure, 1.2 is a rectangular history characteristic with each Curie point being different as shown in Figure 1? 3 is a power source for excitation, 4 is a control impedance, and 5 is a voltage induced in the secondary winding of the magnetic core. If the induced voltage is output at a level higher than Stage circuit? a gate circuit that makes the circuit conductive; 6 a heater section that becomes heated when one circuit is in the groove-conducting state;
7 is a cooling unit which becomes a cooling state when the circuit is in a conductive state; 8 is an I;
■夫々の回路の電源、９は恒温槽部を示す。■Power supply for each circuit, 9 indicates a constant temperature oven section.
本構成に於いて更に磁心Ｓ Ｒ＋ 、Ｓ Ｒ２の励磁条
件ケ次式の如く設定する。In this configuration, the excitation conditions for the magnetic cores S R+ and S R2 are further set as shown in the following equation.
ＮＩＩＩ ＜ＮｔＩｚ ・・・・・・・・・・・・・・
・・・・・・・・・・・・・（１）又励磁電源電圧は（
２）式の如く設定する。NIII <NtIz ・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・(1) Also, the excitation power supply voltage is (
2) Set as shown in the formula.
更に１図に示す磁心の初期条件より
ＴＣＩ＜Ｔｅ３ ・・・・・・・・・・・・・・・・・
・・・・・・・・・・（３）上記のような条件下におい
て、
まず本回路始動時からの回路の動作ｒ考察すると、（１
）の条件から電源電圧Ｅ１ はまず磁心ａｌｌのみ？励
磁する。従って磁心ＳＲＩの二次巻線部に誘起電圧が発
生し回路Ｉのゲート回路が動作してヒーターが加熱する
。従って９の恒温槽内、の温浪は次第に高まりその温度
がＴｃ−＋ に達すると磁心ＳＲＩの透磁率は急激に変
化して消失する。従って磁心ＳＲ，ｌの二次誘起電圧も
消失し回路Ｉは不導通状態となり、ヒーターは遮断され
ると同時に励磁電源電圧Ｅ、は今度は磁心ＳＲ２に印加
し、磁心８Ｒ２け励磁されてその二次回路に誘起電圧が
発生し回路■が導通状態となり７の冷却部が動作？開始
する。従って恒温槽内の温度は冷却されて下りはじめそ
の温度がＴｃ−１より以下に達すると磁心ＳＲ，ｌの透
磁率が急激に回復することとなり磁心８Ｒ１の励磁イン
ピーダンスが急激に回路に挿入されることとなり励磁電
圧ｉ、は磁心５ＦＬＩ側に印加し前と同様回路■は遮断
状態に回路■は導通状態となる。このような動作ケ以后
繰返しＴＣＩに関係する。成る設定温度？境として恒温
槽内温度？一定に制御出来ることとなる。Furthermore, based on the initial conditions of the magnetic core shown in Figure 1, TCI<Te3...
・・・・・・・・・・・・(3) Under the above conditions, first considering the operation r of the circuit from the time of starting this circuit, (1
), first of all, is the power supply voltage E1 only for all magnetic cores? Excite. Therefore, an induced voltage is generated in the secondary winding portion of the magnetic core SRI, the gate circuit of circuit I is operated, and the heater is heated. Therefore, the temperature wave in the constant temperature oven 9 gradually increases and when the temperature reaches Tc-+, the magnetic permeability of the magnetic core SRI changes rapidly and disappears. Therefore, the secondary induced voltage in the magnetic core SR,l also disappears, and the circuit I becomes non-conductive, and the heater is cut off. At the same time, the excitation power supply voltage E is now applied to the magnetic core SR2, and the magnetic core 8R2 is excited, and the second Next, an induced voltage is generated in the circuit, circuit ■ becomes conductive, and cooling section 7 operates? Start. Therefore, the temperature inside the thermostatic chamber begins to cool down and when the temperature reaches below Tc-1, the magnetic permeability of the magnetic core SR,l rapidly recovers, and the excitation impedance of the magnetic core 8R1 is suddenly inserted into the circuit. Therefore, the excitation voltage i is applied to the magnetic core 5FLI side, and as before, the circuit (2) becomes cut off and the circuit (2) becomes conductive. After such an operation, repeated TCI is involved. What is the set temperature? Is the temperature inside the constant temperature chamber a boundary? This allows constant control.
本発明の効果、特長の主な点は下記の通りである。 The main effects and features of the present invention are as follows.
（１） 本何路の主要部は磁心及びその巻線で構成がシ
×ノプルで、信頼性が高い。(1) The main part of this circuit consists of a magnetic core and its windings, and is highly reliable.
伐）設定温度は磁心のキュリ一点に依存するため一義的
に定り他の変動の影響ケ受けずに正確に制御が行える。Since the set temperature depends on a single point on the magnetic core, it is uniquely determined and can be accurately controlled without being affected by other fluctuations.
第１図は磁心の透磁率一温度特性図、第２図は磁心の励
磁条件？示す図、第３図は本発明の詳細な説明図である
。
ｌ・・・キュリ一点の低い磁心、２・・・キュリ一点の
高い磁心、３・・・励磁電源、４・・・励磁回路制御イ
ンピーダンス、５・・・ゲート回路部、６・・・加熱部
、７・・・冷却部、８・・・補助電源、９・・・恒温槽
部。
代理人 弁理士 高橋明夫Figure 1 is a magnetic permeability-temperature characteristic diagram of the magnetic core, and Figure 2 is the excitation conditions of the magnetic core. The figure shown in FIG. 3 is a detailed explanatory diagram of the present invention. l...Low magnetic core with one point of Curie, 2...Magnetic core with high one point of Curie, 3...Excitation power supply, 4...Excitation circuit control impedance, 5...Gate circuit section, 6...Heating section , 7... Cooling section, 8... Auxiliary power supply, 9... Constant temperature chamber section. Agent Patent Attorney Akio Takahashi
Claims (1)
する回路においてキュリ一点が低く、アンペアターンが
他のものに比べて小さい磁心部勿加熱回路部とし、これ
とは逆にキュリ一点が高くアンペアターンが他エリ大き
い磁心部？冷却回路部として、加熱回路部磁心のキュリ
一点を設定温度と【−て恒温制御？行うことｔ特徴とす
る恒温制御方式。[Claims] 1. Two magnetic cores that differ by a single Curie point? In a series-excited circuit, is the magnetic core part of the heating circuit section where the Curie point is low and the ampere turns are small compared to other parts, and conversely, the magnetic core part where the Curie point is high and the ampere turns are large in other areas? As a cooling circuit part, one point of the magnetic core of the heating circuit part is constant temperature controlled with the set temperature. What it does: Characteristic constant temperature control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6902884A JPS60214020A (en) | 1984-04-09 | 1984-04-09 | Constant temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6902884A JPS60214020A (en) | 1984-04-09 | 1984-04-09 | Constant temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60214020A true JPS60214020A (en) | 1985-10-26 |
Family
ID=13390715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6902884A Pending JPS60214020A (en) | 1984-04-09 | 1984-04-09 | Constant temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60214020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0449275A2 (en) * | 1990-03-30 | 1991-10-02 | Sharp Kabushiki Kaisha | Microwave oven with invertor control power source |
-
1984
- 1984-04-09 JP JP6902884A patent/JPS60214020A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0449275A2 (en) * | 1990-03-30 | 1991-10-02 | Sharp Kabushiki Kaisha | Microwave oven with invertor control power source |
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