JPS63146722U - - Google Patents
Info
- Publication number
- JPS63146722U JPS63146722U JP3964387U JP3964387U JPS63146722U JP S63146722 U JPS63146722 U JP S63146722U JP 3964387 U JP3964387 U JP 3964387U JP 3964387 U JP3964387 U JP 3964387U JP S63146722 U JPS63146722 U JP S63146722U
- Authority
- JP
- Japan
- Prior art keywords
- temperature sensor
- liquid refrigerant
- container
- liquid
- level detection
- 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
- 239000003507 refrigerant Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 5
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
第１図は本考案実施例の構成図、第２図はその
動作を示すタイムチヤートである。
１…デユワー瓶、２ａ，２ｂ…温度センサ、３
…センサ用ヒータ、７，８…コンパレータ、９…
冷媒制御回路、１０…警報器、１１…ヒータ制御
回路、１２ａ…Ｔ１タイマ、１２ｂ…Ｔ２タイマ
。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a time chart showing its operation. 1... Dewar bottle, 2a, 2b... temperature sensor, 3
...Sensor heater, 7, 8...Comparator, 9...
Refrigerant control circuit, 10...Alarm, 11...Heater control circuit, 12a... T1 timer, 12b... T2 timer.
Claims (1)
する装置であつて、上記容器内に所定高さ位置に
配設された温度センサと、この温度センサを加熱
する加熱手段と、あらかじめ設定された基準電圧
と上記温度センサからの出力電圧を比較する手段
を備え、その比較結果に基づいて液面検出信号を
出力するよう構成したことを特徴とする、液体冷
媒の液面検出装置。 (2) 上記温度センサを周期的に加熱するよう構
成したことを特徴とする、実用新案登録請求の範
囲第１項記載の液体冷媒の液面検出装置。[Claims for Utility Model Registration] (1) A device for detecting the liquid level of a liquid refrigerant contained in a container, comprising a temperature sensor disposed at a predetermined height within the container, and the temperature sensor. and a means for comparing the output voltage from the temperature sensor with a preset reference voltage, and outputting a liquid level detection signal based on the comparison result, Liquid refrigerant level detection device. (2) The liquid refrigerant level detecting device according to claim 1, characterized in that the temperature sensor is configured to be heated periodically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3964387U JPS63146722U (en) | 1987-03-18 | 1987-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3964387U JPS63146722U (en) | 1987-03-18 | 1987-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63146722U true JPS63146722U (en) | 1988-09-28 |
Family
ID=30853005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3964387U Pending JPS63146722U (en) | 1987-03-18 | 1987-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63146722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015526686A (en) * | 2012-07-27 | 2015-09-10 | ヨーロピアン モレキュラー バイオロジー ラボラトリー | Cooling Dewar with antifreeze coolant and reduced access to specimens |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191927A (en) * | 1982-05-06 | 1983-11-09 | Ricoh Co Ltd | Detecting apparatus of liquid level |
-
1987
- 1987-03-18 JP JP3964387U patent/JPS63146722U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191927A (en) * | 1982-05-06 | 1983-11-09 | Ricoh Co Ltd | Detecting apparatus of liquid level |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015526686A (en) * | 2012-07-27 | 2015-09-10 | ヨーロピアン モレキュラー バイオロジー ラボラトリー | Cooling Dewar with antifreeze coolant and reduced access to specimens |