JPS5432852A - Frost detector - Google Patents
Frost detectorInfo
- Publication number
- JPS5432852A JPS5432852A JP9905777A JP9905777A JPS5432852A JP S5432852 A JPS5432852 A JP S5432852A JP 9905777 A JP9905777 A JP 9905777A JP 9905777 A JP9905777 A JP 9905777A JP S5432852 A JPS5432852 A JP S5432852A
- Authority
- JP
- Japan
- Prior art keywords
- frost
- oscillation circuit
- frost detector
- trembler
- piezo
- 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
Links
Landscapes
- Defrosting Systems (AREA)
Abstract
PURPOSE: To positively detect and remove frost, by connecting a trembler obtained by mounting a piezo-electric body sheet to a vibration piece, which mechanical efficiency lowers by the attachment of frost, to a transistor arranging an oscillation circuit, and by detecting the output of the oscillation circuit.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9905777A JPS5432852A (en) | 1977-08-17 | 1977-08-17 | Frost detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9905777A JPS5432852A (en) | 1977-08-17 | 1977-08-17 | Frost detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5432852A true JPS5432852A (en) | 1979-03-10 |
JPS5653180B2 JPS5653180B2 (en) | 1981-12-17 |
Family
ID=14237034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9905777A Granted JPS5432852A (en) | 1977-08-17 | 1977-08-17 | Frost detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5432852A (en) |
-
1977
- 1977-08-17 JP JP9905777A patent/JPS5432852A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5653180B2 (en) | 1981-12-17 |
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