JPS54108680A - Snow deposit and ice detecting method - Google Patents
Snow deposit and ice detecting methodInfo
- Publication number
- JPS54108680A JPS54108680A JP1565778A JP1565778A JPS54108680A JP S54108680 A JPS54108680 A JP S54108680A JP 1565778 A JP1565778 A JP 1565778A JP 1565778 A JP1565778 A JP 1565778A JP S54108680 A JPS54108680 A JP S54108680A
- Authority
- JP
- Japan
- Prior art keywords
- humidity
- temperature
- ice
- closed
- set value
- 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
Abstract
PURPOSE: To enable detection of ice forming condition, by setting a thermometer and hygrometer at the temperature and humidity under which overcooled water drops exist, and judging presence of snow deposit or ice when the measured temperature is below the set value and the measured humidity is above the set value.
CONSTITUTION: A temperature detector 1 detects the temperature and sends the temperature signal to a controller 2, which closes a switch 3 when the temperature is below the set value. A humidity detector 4 detects the humidity and sends the humidity signal to a controller 5, which closes a switch 6 when the humidity is above the set value. Only when both switches 3 and 6 are closed, a circuit 9 is closed, and power is supplied from a power source 8 into a heater 7. This circuit 9 is not closed when either switch 3 or 6 is closed. Since the ice forming condition is established only when both the temperature and humidity conditions are satisfied by measuring both, the ice forming condition may be securely detected before ice is formed on object. Hence, when it is applied to ice preventive device, ice forming may be prevented with a minimum of energy required.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1565778A JPS54108680A (en) | 1978-02-14 | 1978-02-14 | Snow deposit and ice detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1565778A JPS54108680A (en) | 1978-02-14 | 1978-02-14 | Snow deposit and ice detecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54108680A true JPS54108680A (en) | 1979-08-25 |
Family
ID=11894792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1565778A Pending JPS54108680A (en) | 1978-02-14 | 1978-02-14 | Snow deposit and ice detecting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54108680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009539019A (en) * | 2006-05-31 | 2009-11-12 | エッセ・イ・エッセヴ・エエッレ・ソシエタ・ペル・アチオニ・ソシエタ・イタリアーナ・ペル・ロ・スヴィルッポ・デッレレットロニカ | Method and system for detecting the risk of icing on aerodynamic surfaces |
| KR101021759B1 (en) * | 2003-08-20 | 2011-03-15 | 더 보잉 컴파니 | Methods and systems for detecting icing conditions |
-
1978
- 1978-02-14 JP JP1565778A patent/JPS54108680A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101021759B1 (en) * | 2003-08-20 | 2011-03-15 | 더 보잉 컴파니 | Methods and systems for detecting icing conditions |
| JP2009539019A (en) * | 2006-05-31 | 2009-11-12 | エッセ・イ・エッセヴ・エエッレ・ソシエタ・ペル・アチオニ・ソシエタ・イタリアーナ・ペル・ロ・スヴィルッポ・デッレレットロニカ | Method and system for detecting the risk of icing on aerodynamic surfaces |
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