JPS6133464B2 - - Google Patents
Info
- Publication number
- JPS6133464B2 JPS6133464B2 JP13500580A JP13500580A JPS6133464B2 JP S6133464 B2 JPS6133464 B2 JP S6133464B2 JP 13500580 A JP13500580 A JP 13500580A JP 13500580 A JP13500580 A JP 13500580A JP S6133464 B2 JPS6133464 B2 JP S6133464B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- heating
- sensing element
- humidity sensing
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 44
- 238000001514 detection method Methods 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 description 16
- 238000005259 measurement Methods 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Control Of Temperature (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Control Of Non-Electrical Variables (AREA)
Description
【発明の詳細な説明】
本発明は、多孔質セラミツク感湿素子の加熱ク
リーニングのための加熱制御装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating control device for heating cleaning of a porous ceramic moisture sensitive element.
多孔質セラミツク感湿素子（商品名 ヒユミセ
ラム）を用いて湿度計測を行う際には、あらかじ
感湿素子を加熱クリーニングして、付着している
水分や汚染物質などを蒸発および焼却除去してお
く必要がある。そして、この加熱時間が短かすぎ
ると付着物の除去が不完全となり、計測精度を低
下させ、また、反対に加熱時間が長すぎると素子
の特性劣化をまねき、熱破壊に至る場合もある。 When measuring humidity using a porous ceramic moisture sensing element (product name: HUYUMICERAM), first heat and clean the humidity sensing element to evaporate and incinerate any attached moisture or contaminants. There is a need. If the heating time is too short, the removal of deposits will be incomplete, reducing measurement accuracy, while if the heating time is too long, the characteristics of the element will deteriorate, possibly leading to thermal destruction.
したがつて、感湿素子の加熱クリーニングにあ
たつては、適切なタイミングを見はからつて、加
熱電気ヒータの加熱時間を制御する必要がある
が、そのタイミングは秒単位以下であり、手動に
よる操作によつては加熱時間にバラつきが生じ、
計測精度の均等性がそこなわれて計測結果に対す
る高信頼性を望むことが困難である。 Therefore, when heating and cleaning a moisture-sensitive element, it is necessary to find the appropriate timing and control the heating time of the electric heater, but the timing is less than a second, and manual cleaning is required. Depending on the operation, heating time may vary.
The uniformity of measurement accuracy is impaired, making it difficult to expect high reliability of measurement results.
本発明は上記の問題点に鑑み、感湿素子の加熱
にともなう電気抵抗の変化を検出し、かつこの検
出電圧の変化にもとづいて、電気ヒータの通電加
熱後、適当なタイミングでその電流を自動的に遮
断することにより、感湿素子の加熱クリーニング
を常に的確に行うことができ、もつて、計測精度
および信頼性の向上を図ることができる感湿素子
の加熱制御装置を提供しようとするものである。 In view of the above-mentioned problems, the present invention detects the change in electrical resistance due to heating of the humidity sensing element, and automatically adjusts the current at an appropriate timing after the electric heater is energized and heated based on the change in the detected voltage. An object of the present invention is to provide a heating control device for a humidity-sensitive element, which can always perform accurate heating cleaning of the humidity-sensitive element by shutting off the temperature, thereby improving measurement accuracy and reliability. It is.
次に本発明の構成を図面に示された一実施例に
ついて説明する。 Next, the configuration of the present invention will be described with reference to an embodiment shown in the drawings.
この制御装置は、第１図に示すように、多孔質
セラミツク感湿素子１を加熱する電気ヒータ２
と、この電気ヒータ２の電源回路を開閉するスイ
ツチング回路３、手動による加熱スタートスイツ
チ４，感湿素子１の抵抗変化を電圧変化に変換す
る電圧検出回路５、この電圧検出回路５からの検
出電圧と設定電圧とを比較する比較回路６をもつ
て構成されている。そして、上記加熱スタートス
イツチ４は押ボタンスイツチであつて、スイツチ
ング回路３を起動するものであり、また、比較回
路６は電圧検出回路５からの検出電圧が設定電圧
を越えた際に前記スイツチング回路３へ解除信号
を送出する作用をなすものである。 As shown in FIG. 1, this control device includes an electric heater 2 that heats a porous ceramic moisture sensing element 1
, a switching circuit 3 that opens and closes the power supply circuit of the electric heater 2 , a manual heating start switch 4 , a voltage detection circuit 5 that converts resistance changes of the humidity sensing element 1 into voltage changes, and a detected voltage from this voltage detection circuit 5 It is constructed with a comparison circuit 6 that compares the voltage and the set voltage. The heating start switch 4 is a push button switch that starts the switching circuit 3, and the comparison circuit 6 starts the switching circuit 3 when the detected voltage from the voltage detection circuit 5 exceeds the set voltage. This functions to send a release signal to the terminal 3.
電圧検出回路５は、第２図に示すように、感湿
素子１に抵抗素子７を直列にして交流電源８に接
続し、その直列抵抗素子７の端子電圧V0を検出
するものである。感湿素子１の抵抗Ｒsと温度ｔ
との関係は、一般に第３図に示すような特性を有
している。すなわち、感湿素子１の抵抗Ｒsは温
度上昇がある値に達するまでは略一定の高抵抗状
態を保つているが、ある温度を越えると急激に低
下する。また、上記電圧検出回路５の検出電圧で
ある直列抵抗素子７の端子間電圧V0は、その抵
抗素子７の抵抗をR0、交流電源８の電圧をＶaと
すれば、
V0＝Ｒ０／Ｒ０＋ＲｓＶa ……
で与えられる。ここで、直列抵抗素子７の抵抗
R0と、交流電源８の電圧Ｖaは既知であるから、
感湿素子１の抵抗Ｒsの変化は直列抵抗素子７の
端子間電圧V0の変化として検出される。感湿素
子１の温度ｔが上昇し、その抵抗Ｒsが低くなる
と、直列抵抗素子７の端子間電圧V0は上昇す
る。 As shown in FIG. 2, the voltage detection circuit 5 has a resistance element 7 connected to the humidity sensing element 1 in series with an AC power source 8, and detects the terminal voltage V 0 of the series resistance element 7. Resistance R s and temperature t of humidity sensing element 1
Generally, the relationship between That is, the resistance R s of the humidity sensing element 1 maintains a substantially constant high resistance state until the temperature rise reaches a certain value, but when the temperature exceeds a certain value, it rapidly decreases. Further, the voltage V 0 between the terminals of the series resistance element 7, which is the detected voltage of the voltage detection circuit 5 , is expressed as follows: V 0 = R It is given by 0 /R 0 +R s V a . Here, the resistance of the series resistance element 7 is
Since R 0 and the voltage V a of the AC power supply 8 are known,
A change in the resistance R s of the humidity sensing element 1 is detected as a change in the voltage V 0 between the terminals of the series resistance element 7 . When the temperature t of the humidity sensing element 1 increases and its resistance R s decreases, the voltage V 0 between the terminals of the series resistance element 7 increases.
そこで、感湿素子１の加熱クリーニング完了温
度点をt′、この温度に対応する感湿素子１の抵抗
をＲs′とすれば、この場合の直列抵抗素子７の端
子間電圧V0′は、式から、
V0′＝Ｒ０／Ｒ０＋Ｒｓ′Ｖa ……
で与えられるので、この電圧V0と一致する値を
比較回路６の比較基準電圧として設定しておく。
そこで感湿素子１の加熱クリーニング開始後、そ
の温度がクリーニング完了点に達し、電圧検出回
路５の検出電圧V0′が上記設定電圧を越えると、
直ちに比較回路６からスイツチング回路３に解除
信号が送出され、電気ヒータ２の加熱電流が遮断
されて、感湿素子１の加熱が自動的に停止され
る。すなわち、湿度等の計測に際しては、あらか
じめ感湿素子１の加熱クリーニングを行う必要が
あるが、この作業は単に加熱スタートスイツチ４
を手動操作するのみで、電気ヒータ２によつて感
湿素子１が加熱され、かつ所要の加熱クリーニン
グ状態に至つた際に自動的に加熱が停止される。
感湿素子１はその加熱クリーニングにあたつて、
クリーニング不足や過剰加熱状態に陥ることな
く、感湿素子１による計測精度およびその信頼性
の向上を図ることができる。 Therefore, if the temperature point at which heating cleaning of the humidity sensing element 1 is completed is t', and the resistance of the humidity sensing element 1 corresponding to this temperature is R s ', then the voltage across the terminals of the series resistance element 7 in this case is V 0 '. From the formula, V 0 '=R 0 / R 0 +R s 'V a .
Therefore, after heating cleaning of the humidity sensing element 1 is started, when its temperature reaches the cleaning completion point and the detection voltage V 0 ' of the voltage detection circuit 5 exceeds the above-mentioned set voltage,
Immediately, a release signal is sent from the comparison circuit 6 to the switching circuit 3, the heating current of the electric heater 2 is cut off, and the heating of the humidity sensing element 1 is automatically stopped. That is, when measuring humidity, etc., it is necessary to perform heating cleaning of the humidity sensing element 1 in advance, but this work is simply performed by turning the heating start switch 4.
By only manually operating the , the humidity sensing element 1 is heated by the electric heater 2, and the heating is automatically stopped when the desired heated cleaning state is reached.
When the humidity sensing element 1 is heated and cleaned,
It is possible to improve the measurement accuracy and reliability of the moisture sensing element 1 without falling into a state of insufficient cleaning or excessive heating.
第４図には以上説明した加熱制御装置の具体的
回路例が示されている。 FIG. 4 shows a specific circuit example of the heating control device described above.
図中、第１図および第２図と同様に、１は感湿
素子、２は電気ヒータ、３はスイツチング回路、
４は加熱スタートスイツチ、５は電圧検出回路、
６は比較回路であり、７は電圧検出回路５におけ
る直列抵抗素子、８は交流電源である。 In the figure, as in FIGS. 1 and 2, 1 is a moisture sensing element, 2 is an electric heater, 3 is a switching circuit,
4 is a heating start switch, 5 is a voltage detection circuit,
6 is a comparison circuit, 7 is a series resistance element in the voltage detection circuit 5, and 8 is an AC power source.
上記スイツチング回路３は、フリツプフロツプ
回路FFとノアゲート回路NOR及びフリツプフロ
ツプ回路FFの出力で制御されるリレーＸで構成
されており、フリツプフロツプ回路FFのＤ入力
およびCK入力間には加熱スタートスイツチ４が
接続されている。そして、フリツプフロツプ回路
FFの出力Ｑにはダーリントン接続のスイツチン
グトランジスタQ1，Q2を経てリレーＸが接続さ
れており、このリレーＸの開閉接点X′が電気ヒ
ータ２の電源回路に直列に介在されている。ノア
ゲート回路NORの出力はフリツプフロツプ回路
FFのCLR入力に接続され、ノアゲートNORの一
方の入力は比較回路６の出力に、その他方の入力
は初期設定回路９の出力にそれぞれ接続されてい
る。初期設定回路９は、シユミツトトリガーイン
バータiC1と時定数を設定する抵抗Ｒとコンデン
サＣ等によつて構成されている。フリツプフロツ
プ回路FFのPS入力は電源に接続されている。ま
た、比較回路６には電圧設定のための可変抵抗器
VRが設けられている。 The switching circuit 3 is composed of a flip-flop circuit FF, a NOR gate circuit NOR, and a relay X controlled by the output of the flip-flop circuit FF, and a heating start switch 4 is connected between the D input and the CK input of the flip-flop circuit FF. ing. And flip-flop circuit
A relay X is connected to the output Q of the FF via Darlington-connected switching transistors Q 1 and Q 2 , and the opening/closing contact X' of this relay X is interposed in series with the power supply circuit of the electric heater 2 . The output of the NOR gate circuit NOR is a flip-flop circuit
It is connected to the CLR input of the FF, one input of the NOR gate NOR is connected to the output of the comparison circuit 6, and the other input is connected to the output of the initialization circuit 9. The initial setting circuit 9 includes a Schmitt trigger inverter iC1 , a resistor R for setting a time constant, a capacitor C, and the like. The PS input of the flip-flop circuit FF is connected to the power supply. In addition, the comparator circuit 6 includes a variable resistor for voltage setting.
VR is provided.
上記初期設定回路９は、フリツプフロツプ回路
FFをその始動時点において正常に動作させるた
めの回路状態を強制的に設定するためのものであ
る。すなわち、フリツプフロツプ回路FFは始動
された最初の時点では出力Ｑの状態（Lowまたは
High）は保償されておらず、Low.Highいずれの
状態もとり得るので、回路を正常に動作させるた
めには、回路始動時点において強制的に回路状態
を設定しておく必要がある。そこで、装置内素子
全てにPowerを供給する電源がOnになつたとき
フリツプフロツプ回路FFが動作を始める時に
は、すでにフリツプフロツプ回路FFのCLR端子
電圧がLowに設定されており、出力Ｑが保償され
る。その後、電圧がシユミツトトリガーインバー
タiC1のスレツシヨルドを越えると、CLR端子電
圧はHighとなり、入力Ｄ、CK待ち状態となる。
したがつて、初期設定回路９は、フリツプフロツ
プ回路FFをその始動時点においてクリアする
（出力Ｑを強制的にLowとする）作用をするもの
である。 The initial setting circuit 9 is a flip-flop circuit.
This is for forcibly setting the circuit state for normal operation of the FF at the time of startup. That is, when the flip-flop circuit FF is first started, the state of the output Q (Low or
High) is not guaranteed and can be either Low or High, so in order to operate the circuit normally, it is necessary to forcibly set the circuit state at the time the circuit is started. Therefore, when the flip-flop circuit FF starts operating when the power supply that supplies power to all the elements in the device is turned on, the CLR terminal voltage of the flip-flop circuit FF is already set to Low, and the output Q is guaranteed. . After that, when the voltage exceeds the threshold of the Schmitt trigger inverter iC1 , the CLR terminal voltage becomes High and the system waits for inputs D and CK.
Therefore, the initial setting circuit 9 functions to clear the flip-flop circuit FF at the time of its startup (forcibly sets the output Q to Low).
叙上の回路構成において、いま加熱スタートス
イツチ４を手動により投入すれば、フリツプフロ
ツプ回路FFがオン状態となつてその出力Ｑから
出力信号が送出され、ダーリントン構成されたス
イツチングトランジスタQ1，Q2がオン状態とな
つてリレーＸが励磁されるので、その接点X′が
閉じて電気ヒータ２に通電して加熱され、感湿素
子１の加熱クリーニングが開始される。そして、
感湿素子１の電気抵抗がその湿度上昇により低下
すれば、電圧検出回路５の検出電圧が上昇し、そ
れが比較回路６における設定電圧を越えると、比
較回路６より出力信号が送出されてスイツチング
回路３のノアゲートNORの一方の入力となり、
フリツプフロツプ回路FFのCLR入力となる。こ
のためフリツプフロツプ回路FFはオフ状態とな
り、スイツチングトランジスタQ1，Q2もオフ状
態となつてリレーＸの励磁が解除されるので、そ
の接点X′が開き、電気ヒータ２の電流が遮断さ
れて、感湿素子１の加熱が自動的に停止される。
感湿素子１の加熱時間は、比較回路６に設けられ
た可変抵抗器VRを調整して、電圧検出回路５の
検出電圧との関係で設定電圧をあらかじめ適正値
に設定しておくのみで規定することができるの
で、感湿素子１の加熱クリーニングに際しては、
単に加熱スタートスイツチ４を手動操作するのみ
で、クリーニング不足の状態や過剰加熱状態に陥
らせることは全くなく、常に適正な加熱クリーニ
ングを施すことができる。 In the circuit configuration described above, if the heating start switch 4 is now turned on manually, the flip-flop circuit FF is turned on and an output signal is sent from its output Q, and the Darlington-configured switching transistors Q 1 and Q 2 is turned on and the relay X is energized, so its contact X' closes and the electric heater 2 is energized and heated, and heating cleaning of the moisture sensitive element 1 is started. and,
When the electrical resistance of the humidity sensing element 1 decreases due to the increase in humidity, the detection voltage of the voltage detection circuit 5 increases, and when it exceeds the set voltage in the comparison circuit 6, an output signal is sent from the comparison circuit 6 and switching is performed. It becomes one input of the NOR gate NOR of circuit 3,
This becomes the CLR input of the flip-flop circuit FF. As a result, the flip-flop circuit FF is turned off, switching transistors Q 1 and Q 2 are also turned off, and the relay , heating of the humidity sensing element 1 is automatically stopped.
The heating time of the humidity sensing element 1 can be determined simply by adjusting the variable resistor VR provided in the comparator circuit 6 and setting the set voltage to an appropriate value in advance in relation to the detection voltage of the voltage detection circuit 5. Therefore, when heating and cleaning the moisture sensitive element 1,
By simply manually operating the heating start switch 4, there is no possibility of insufficient cleaning or excessive heating, and proper heating cleaning can be performed at all times.
これを要するに、本発明は、感湿素子を加熱す
る電気ヒータと、電気ヒータの電源回路を開閉す
るスイツチング回路と、スイツチング回路を起動
する手動による加熱スタートスイツチと、スイツ
チング回路をその始動時点において正常に動作す
るための回路状態を強制的に設定する初期設定回
路と、感湿素子の抵抗変化を電圧変化に変換する
電圧検出回路と、この電圧検出回路からの検出電
圧と設定電圧とを比較して検出電圧が設定電圧を
越えた際に前記スイツチング回路へ解除信号を送
出する比較回路をそれぞれ設け、加熱スタートス
イツチの閉成時点から電圧検出回路の検出電圧が
比較回路の設定電圧を越える時点までの時間を限
つて電気ヒータに加熱電流を流すように構成した
から、比較回路における設定電圧をあらかじめ適
正値に調整設定しておけば、感湿素子の加熱クリ
ーニングに際しては、単に加熱スタートスイツチ
を手動操作するのみで、過熱不足や過剰加熱状態
をまねくことなく、加熱クリーニングを常に的確
に行うことができ、計測精度および信頼性の向上
を図ることができる効果を奏するものである。 In summary, the present invention includes an electric heater that heats a humidity-sensitive element, a switching circuit that opens and closes the power supply circuit of the electric heater, a manual heating start switch that starts the switching circuit, and a heating start switch that starts the switching circuit normally at the time of starting the switching circuit. The initial setting circuit that forcibly sets the circuit state for operation, the voltage detection circuit that converts the resistance change of the humidity sensing element into a voltage change, and the detected voltage from this voltage detection circuit and the set voltage are compared. A comparison circuit is provided which sends a release signal to the switching circuit when the detected voltage exceeds the set voltage, and from the time when the heating start switch is closed until the time when the detected voltage of the voltage detection circuit exceeds the set voltage of the comparison circuit. Since the heating current is configured to flow through the electric heater for a limited period of time, if the set voltage in the comparison circuit is adjusted to an appropriate value in advance, then when heating and cleaning the humidity sensing element, you can simply turn the heating start switch manually. By simply operating the device, heating cleaning can always be performed accurately without causing insufficient or excessive heating, and the effect is that measurement accuracy and reliability can be improved.
図面は本発明に係る感湿素子の加熱制御装置の
一実施例を示すものであつて、第１図は装置の全
体構成を示すブロツクダイヤグラム、第２図はそ
の一部の回路図、第３図は感湿素子の湿度・抵抗
特性図、第４図は装置の具体例を示す全体の回路
図である。
１…多孔質セラミツク感湿素子、２…電気ヒー
タ、３…スイツチング回路、４…加熱スタートス
イツチ、５…電圧検出回路、６…比較回路、７…
直列抵抗素子、８…交流電源、９…初期設定回
路。
The drawings show an embodiment of a heating control device for a moisture-sensitive element according to the present invention, in which FIG. 1 is a block diagram showing the overall configuration of the device, FIG. 2 is a partial circuit diagram thereof, and FIG. The figure is a humidity/resistance characteristic diagram of the humidity sensing element, and FIG. 4 is an overall circuit diagram showing a specific example of the device. DESCRIPTION OF SYMBOLS 1... Porous ceramic moisture sensing element, 2... Electric heater, 3... Switching circuit, 4... Heating start switch, 5... Voltage detection circuit, 6... Comparison circuit, 7...
Series resistance element, 8...AC power supply, 9...Initial setting circuit.
Claims (1)
タの電源回路を開閉するスイツチング回路と、ス
イツチング回路を起動する手動による加熱スター
トスイツチと、スイツチング回路をその始動時点
において正常に作動させるための回路状態を強制
的に設定する初期設定回路と、感湿素子の抵抗変
化を電圧変化に変換する電圧検出回路と、この電
圧検出回路からの検出電圧と設定電圧とを比較し
て検出電圧が設定電圧を越えた際に前記スイツチ
ング回路へ解除信号を送信する比較回路をそれぞ
れ設け、加熱スタートスイツチの閉成時点から電
圧検出回路の検出電圧が比較回路の設定電圧を越
える時点までの時間を限つて電気ヒータに加熱電
流を流すように構成したことを特徴とする感湿素
子の加熱制御装置。1. An electric heater that heats the humidity sensing element, a switching circuit that opens and closes the power supply circuit of the electric heater, a manual heating start switch that starts the switching circuit, and a circuit condition that allows the switching circuit to operate normally at the time of starting. An initial setting circuit that forcibly sets the voltage, a voltage detection circuit that converts the resistance change of the humidity sensing element into a voltage change, and the detected voltage from this voltage detection circuit and the set voltage are compared to determine whether the detected voltage is equal to the set voltage. A comparison circuit is provided which sends a release signal to the switching circuit when the voltage exceeds the set voltage of the comparison circuit. 1. A heating control device for a moisture-sensitive element, characterized in that the device is configured to flow a heating current through the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13500580A JPS5759156A (en) | 1980-09-26 | 1980-09-26 | Control apparatus for heating of hymidity sensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13500580A JPS5759156A (en) | 1980-09-26 | 1980-09-26 | Control apparatus for heating of hymidity sensitive element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5759156A JPS5759156A (en) | 1982-04-09 |
| JPS6133464B2 true JPS6133464B2 (en) | 1986-08-02 |
Family
ID=15141698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13500580A Granted JPS5759156A (en) | 1980-09-26 | 1980-09-26 | Control apparatus for heating of hymidity sensitive element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5759156A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894793B (en) * | 2017-10-31 | 2020-03-17 | 福建摩尔软件有限公司 | Management method and device for humidity sensitive element |
-
1980
- 1980-09-26 JP JP13500580A patent/JPS5759156A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5759156A (en) | 1982-04-09 |
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