JPS6440027U - - Google Patents

Info

Publication number
JPS6440027U
JPS6440027U JP13533687U JP13533687U JPS6440027U JP S6440027 U JPS6440027 U JP S6440027U JP 13533687 U JP13533687 U JP 13533687U JP 13533687 U JP13533687 U JP 13533687U JP S6440027 U JPS6440027 U JP S6440027U
Authority
JP
Japan
Prior art keywords
liquid level
temperature
sensing element
temperature sensing
cap
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.)
Granted
Application number
JP13533687U
Other languages
Japanese (ja)
Other versions
JP2503288Y2 (en
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 filed Critical
Priority to JP1987135336U priority Critical patent/JP2503288Y2/en
Publication of JPS6440027U publication Critical patent/JPS6440027U/ja
Application granted granted Critical
Publication of JP2503288Y2 publication Critical patent/JP2503288Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図は液面セ
ンサーの構成を示す縦断面図、第２図はサーミス
タの取付状態を示す拡大縦断面図、第３図は液面
検知装置の制御装置の回路構成図、第４図は気体
中および液体中におけるサーミスタの断続加熱に
よる温度変化の実験データである。第５図は別例
を示し、気体中および液体中における連続加熱し
たサーミスタと、周囲温度との温度偏差を示す実
験データである。 ２……風防キヤツプ、２ｅ……通気孔、２ｇ…
…下部開口、４……サーミスタ（温度検知素子）
、２０……加熱手段。 The drawings show an embodiment of the present invention; Fig. 1 is a longitudinal sectional view showing the configuration of the liquid level sensor, Fig. 2 is an enlarged longitudinal sectional view showing the thermistor installation state, and Fig. 3 is the control of the liquid level detection device. The circuit configuration diagram of the device, and FIG. 4, shows experimental data on temperature changes due to intermittent heating of the thermistor in gas and liquid. FIG. 5 shows another example, and is experimental data showing the temperature deviation between a thermistor continuously heated in gas and liquid and the ambient temperature. 2...Windshield cap, 2e...Vent hole, 2g...
...Bottom opening, 4...Thermistor (temperature detection element)
, 20...Heating means.

Claims (1)

【実用新案登録請求の範囲】 (1) 電気抵抗値が温度に対して変化する特性を
有する温度検知素子４と、上記温度検知素子４を
加熱する加熱手段２０とを備え、温度検知素子４
の温度変化に基づいて液面位置を検知するように
した液面検知装置において、上記温度検知素子４
は、周囲からの液体および気体の強制的な流れの
伝播を遮断する筒状キヤツプ２内に配設されてい
て、該キヤツプ２は、その下部に液体および気体
中の温度差に基づく自然対流の伝播を許容する下
部開口２ｇと、温度検知素子４の配設位置よりも
所定高さ上方にキヤツプ２内への液面の移動可能
にキヤツプ２内を通気させる通気孔２ｅとを有す
ることを特徴とする液面検知装置。 (2) 温度検知素子４は自己の発熱によつて加熱
されるものである実用新案登録請求の範囲第(1)
項記載の液面検知装置。[Claims for Utility Model Registration] (1) A temperature sensing element 4 comprising a temperature sensing element 4 having a characteristic that an electric resistance value changes with temperature, and a heating means 20 for heating the temperature sensing element 4;
In the liquid level detection device configured to detect the liquid level position based on the temperature change of the temperature detection element 4,
is disposed within a cylindrical cap 2 that blocks the propagation of forced flows of liquid and gas from the surroundings, and the cap 2 has a natural convection flow in its lower part based on the temperature difference in the liquid and gas. It is characterized by having a lower opening 2g that allows the propagation, and a vent hole 2e that ventilates the inside of the cap 2 so that the liquid level can move into the cap 2 at a predetermined height above the location where the temperature sensing element 4 is disposed. Liquid level detection device. (2) The temperature sensing element 4 is heated by its own heat generation Claim No. (1)
Liquid level detection device as described in section.
JP1987135336U 1987-09-04 1987-09-04 Liquid level detector Expired - Lifetime JP2503288Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987135336U JP2503288Y2 (en) 1987-09-04 1987-09-04 Liquid level detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987135336U JP2503288Y2 (en) 1987-09-04 1987-09-04 Liquid level detector

Publications (2)

Publication Number Publication Date
JPS6440027U true JPS6440027U (en) 1989-03-09
JP2503288Y2 JP2503288Y2 (en) 1996-06-26

Family

ID=31394869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987135336U Expired - Lifetime JP2503288Y2 (en) 1987-09-04 1987-09-04 Liquid level detector

Country Status (1)

Country Link
JP (1) JP2503288Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006262924A (en) * 2005-03-22 2006-10-05 Matsushita Electric Ind Co Ltd Washing/drying machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5544234U (en) * 1978-09-14 1980-03-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5544234U (en) * 1978-09-14 1980-03-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006262924A (en) * 2005-03-22 2006-10-05 Matsushita Electric Ind Co Ltd Washing/drying machine

Also Published As

Publication number Publication date
JP2503288Y2 (en) 1996-06-26

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