JPS5360293A - Frost detector - Google Patents

Frost detector

Info

Publication number
JPS5360293A
JPS5360293A JP13608176A JP13608176A JPS5360293A JP S5360293 A JPS5360293 A JP S5360293A JP 13608176 A JP13608176 A JP 13608176A JP 13608176 A JP13608176 A JP 13608176A JP S5360293 A JPS5360293 A JP S5360293A
Authority
JP
Japan
Prior art keywords
frost detector
oscillation
detector
frost
piezoelement
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
JP13608176A
Other languages
English (en)
Japanese (ja)
Other versions
JPS576024B2 (OSRAM
Inventor
Toshibumi Kamiyama
Masahito Miyamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13608176A priority Critical patent/JPS5360293A/ja
Priority to US05/847,814 priority patent/US4176524A/en
Priority to CA290,106A priority patent/CA1090441A/en
Priority to DE2750165A priority patent/DE2750165C3/de
Publication of JPS5360293A publication Critical patent/JPS5360293A/ja
Publication of JPS576024B2 publication Critical patent/JPS576024B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02845—Humidity, wetness

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Defrosting Systems (AREA)
JP13608176A 1976-11-10 1976-11-10 Frost detector Granted JPS5360293A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP13608176A JPS5360293A (en) 1976-11-10 1976-11-10 Frost detector
US05/847,814 US4176524A (en) 1976-11-10 1977-11-02 Frost detector
CA290,106A CA1090441A (en) 1976-11-10 1977-11-02 Frost detector
DE2750165A DE2750165C3 (de) 1976-11-10 1977-11-09 Vorrichtung zur Feststellung einer Reifbildung auf einer Fläche eines Körpers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13608176A JPS5360293A (en) 1976-11-10 1976-11-10 Frost detector

Publications (2)

Publication Number Publication Date
JPS5360293A true JPS5360293A (en) 1978-05-30
JPS576024B2 JPS576024B2 (OSRAM) 1982-02-02

Family

ID=15166788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13608176A Granted JPS5360293A (en) 1976-11-10 1976-11-10 Frost detector

Country Status (1)

Country Link
JP (1) JPS5360293A (OSRAM)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57162557U (OSRAM) * 1981-04-07 1982-10-13
JPS6039530A (ja) * 1983-07-13 1985-03-01 ラボラトワール・スイス・ド・ルシエルシユ・オルロジエール 圧電汚染検出器
JPS6051455U (ja) * 1983-09-17 1985-04-11 ティーディーケイ株式会社 粉体検知器
JPS629288A (ja) * 1985-07-04 1987-01-17 ハイドロ−ケベツク 新規な除去機構を備えたマイクロプロセツサにより雨氷を測定するシステム
JPS62132148A (ja) * 1984-02-27 1987-06-15 ビブロ−メ−タ−　ソシエテ　アノニム 氷形成の可能性を探知する方法及び氷警告装置
JPH0225863U (OSRAM) * 1988-08-05 1990-02-20
JP2008051707A (ja) * 2006-08-25 2008-03-06 Akebono Brake Ind Co Ltd センサ素子及び充填検知装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973730A (ja) * 1982-10-19 1984-04-26 Matsushita Electric Ind Co Ltd 水位検出装置付浴槽

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57162557U (OSRAM) * 1981-04-07 1982-10-13
JPS6039530A (ja) * 1983-07-13 1985-03-01 ラボラトワール・スイス・ド・ルシエルシユ・オルロジエール 圧電汚染検出器
JPS6051455U (ja) * 1983-09-17 1985-04-11 ティーディーケイ株式会社 粉体検知器
JPS62132148A (ja) * 1984-02-27 1987-06-15 ビブロ−メ−タ−　ソシエテ　アノニム 氷形成の可能性を探知する方法及び氷警告装置
JPS629288A (ja) * 1985-07-04 1987-01-17 ハイドロ−ケベツク 新規な除去機構を備えたマイクロプロセツサにより雨氷を測定するシステム
JPH0225863U (OSRAM) * 1988-08-05 1990-02-20
JP2008051707A (ja) * 2006-08-25 2008-03-06 Akebono Brake Ind Co Ltd センサ素子及び充填検知装置

Also Published As

Publication number Publication date
JPS576024B2 (OSRAM) 1982-02-02

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