JPS5612545A - Detector for detecting state of refrigerant - Google Patents
Detector for detecting state of refrigerantInfo
- Publication number
- JPS5612545A JPS5612545A JP8883679A JP8883679A JPS5612545A JP S5612545 A JPS5612545 A JP S5612545A JP 8883679 A JP8883679 A JP 8883679A JP 8883679 A JP8883679 A JP 8883679A JP S5612545 A JPS5612545 A JP S5612545A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- refrigerant
- change
- increase
- cylindrical
- 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
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Air Conditioning Control Device (AREA)
Abstract
PURPOSE: To improve the detection sensitivity and stability by arranging a plurality of cylindrical electrodes substantially concentrically in parallel with the flow of refrigerant.
CONSTITUTION: Cross-shaped electrode supports 12, 13 placed in a protecting sleeve 10 carry outermost cylindrical electrode 14 and inner cylindrical electrodes 15, 16. These electrodes are arranged concentrically, and are connected to a lead wire 7 through a spring contact portion 12b and a terminal 12a. In consequence, a capacitance is formed between the electrodes 14, 15 and between the electrodes 15, 16. It is, therefore, possible to sense the change of phase of refrigerant flowing through each of the gaps between the electrodes 14, 15 and between the electrodes 15, 16 as a change of capacitance due to a change in the dielectric constant. According to this arrangement, it is possible to increase the opposing area without being accompanied by increase of the size of the detector as a whole. In addition, since the required cross-sectional area of the flow passage is preserved even with the reduced distance between adjacent electrodes, no substantial increase of the flow resistance is caused to eliminate any pressure drop of refrigerant. The cylindrical electrode 14 exposed to the outside ensures a stable operation against external noise.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8883679A JPS5612545A (en) | 1979-07-12 | 1979-07-12 | Detector for detecting state of refrigerant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8883679A JPS5612545A (en) | 1979-07-12 | 1979-07-12 | Detector for detecting state of refrigerant |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5612545A true JPS5612545A (en) | 1981-02-06 |
Family
ID=13954028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8883679A Pending JPS5612545A (en) | 1979-07-12 | 1979-07-12 | Detector for detecting state of refrigerant |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5612545A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2406911A (en) * | 2003-10-06 | 2005-04-13 | Ricardo Inc | Aeration sensing device |
CN103969280A (en) * | 2013-01-31 | 2014-08-06 | 珠海格力电器股份有限公司 | Refrigerant abnormity detection method and air conditioner |
JP2014524566A (en) * | 2011-08-02 | 2014-09-22 | スネクマ | Multi-electrode sensor for measuring gas content in two-phase flow |
JP2015031589A (en) * | 2013-08-02 | 2015-02-16 | 株式会社前川製作所 | Solid phase rate measuring apparatus of two-phase fluid, and cooling system |
EP3140600A4 (en) * | 2014-05-06 | 2017-12-20 | Evapco, Inc. | Sensor for coil defrost in a refrigeration system evaporator |
-
1979
- 1979-07-12 JP JP8883679A patent/JPS5612545A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2406911A (en) * | 2003-10-06 | 2005-04-13 | Ricardo Inc | Aeration sensing device |
GB2406911B (en) * | 2003-10-06 | 2006-10-18 | Ricardo Inc | Aeration sensing device |
JP2014524566A (en) * | 2011-08-02 | 2014-09-22 | スネクマ | Multi-electrode sensor for measuring gas content in two-phase flow |
CN103969280A (en) * | 2013-01-31 | 2014-08-06 | 珠海格力电器股份有限公司 | Refrigerant abnormity detection method and air conditioner |
JP2015031589A (en) * | 2013-08-02 | 2015-02-16 | 株式会社前川製作所 | Solid phase rate measuring apparatus of two-phase fluid, and cooling system |
EP3140600A4 (en) * | 2014-05-06 | 2017-12-20 | Evapco, Inc. | Sensor for coil defrost in a refrigeration system evaporator |
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