JPS5315873A - Dew detector - Google Patents

Dew detector

Info

Publication number
JPS5315873A
JPS5315873A JP8987076A JP8987076A JPS5315873A JP S5315873 A JPS5315873 A JP S5315873A JP 8987076 A JP8987076 A JP 8987076A JP 8987076 A JP8987076 A JP 8987076A JP S5315873 A JPS5315873 A JP S5315873A
Authority
JP
Japan
Prior art keywords
dew
frost
quartz oscillator
dew detector
detector
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
JP8987076A
Other languages
Japanese (ja)
Other versions
JPS5724500B2 (en
Inventor
Takashi Furuya
Hisao Nakane
Toru Shimazaki
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP8987076A priority Critical patent/JPS5315873A/en
Publication of JPS5315873A publication Critical patent/JPS5315873A/en
Publication of JPS5724500B2 publication Critical patent/JPS5724500B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To judge dew and frost by measuring the variation in the resonant frequency of a quartz oscillator due to dew formation to obtain a dew signal and by detecting that the resonant impedance of the quartz oscillator is different for dew and frost.
COPYRIGHT: (C)1978,JPO&Japio
JP8987076A 1976-07-28 1976-07-28 Dew detector Granted JPS5315873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8987076A JPS5315873A (en) 1976-07-28 1976-07-28 Dew detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8987076A JPS5315873A (en) 1976-07-28 1976-07-28 Dew detector

Publications (2)

Publication Number Publication Date
JPS5315873A true JPS5315873A (en) 1978-02-14
JPS5724500B2 JPS5724500B2 (en) 1982-05-25

Family

ID=13982794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8987076A Granted JPS5315873A (en) 1976-07-28 1976-07-28 Dew detector

Country Status (1)

Country Link
JP (1) JPS5315873A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940141A (en) * 1982-07-21 1984-03-05 ネーデルランドス・オルガニサチエ・ボール・トエゲパスト・ナツールブエテンシヤペリイク・オンデルゾエク・テイ・エヌ・オー Detector for adhesion of ice, etc.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501695A (en) * 1965-04-08 1970-03-17 Ericsson Telefon Ab L M Resonance measuring apparatus utilizing the sideband signals of an fm-test signal for feedback control

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501695A (en) * 1965-04-08 1970-03-17 Ericsson Telefon Ab L M Resonance measuring apparatus utilizing the sideband signals of an fm-test signal for feedback control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940141A (en) * 1982-07-21 1984-03-05 ネーデルランドス・オルガニサチエ・ボール・トエゲパスト・ナツールブエテンシヤペリイク・オンデルゾエク・テイ・エヌ・オー Detector for adhesion of ice, etc.
JPH044542B2 (en) * 1982-07-21 1992-01-28

Also Published As

Publication number Publication date
JPS5724500B2 (en) 1982-05-25

Similar Documents

Publication Publication Date Title
JPS5369685A (en) Temperature measuring apparatus
JPS55131776A (en) Frequency marker indicator
JPS5360293A (en) Frost detector
JPS5315873A (en) Dew detector
JPS5255361A (en) Variable frequency oscillator
JPS5315872A (en) Dew detector
JPS5315871A (en) Dew datector
JPS5375870A (en) Semiconductor device measuring jig
JPS51119277A (en) Dew indicator
JPS5363083A (en) Detecting circuit for minute changing quantity
JPS5217875A (en) Humidity meter
JPS5220076A (en) Dew-point measurement device
JPS5291485A (en) Dew point meter
JPS5424567A (en) Reproducing method of carrier
JPS51146896A (en) Supersonic wave density measuring method
JPS51115872A (en) Frequency measurement method
JPS5219944A (en) Pulse width change circuit
JPS5333650A (en) Crystal type film thickness gauge
JPS535901A (en) Driving device of tuning indication meter
JPS52151046A (en) Strip rolled form measuring apparatus
JPS5212548A (en) Indicating device of action fluctuation of an oscillator
JPS5686331A (en) Measuring device of gas density
JPS51147365A (en) Instruction device for tuning musical instrument
JPS5370473A (en) Partial discharge measuring apparatus
JPS51123668A (en) A basic frequency measuring method for vibrating mass