JPH0441655U - - Google Patents

Info

Publication number
JPH0441655U
JPH0441655U JP8200290U JP8200290U JPH0441655U JP H0441655 U JPH0441655 U JP H0441655U JP 8200290 U JP8200290 U JP 8200290U JP 8200290 U JP8200290 U JP 8200290U JP H0441655 U JPH0441655 U JP H0441655U
Authority
JP
Japan
Prior art keywords
raindrop sensor
temperature
heating means
detection signal
temperature detection
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
Application number
JP8200290U
Other languages
English (en)
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 filed Critical
Priority to JP8200290U priority Critical patent/JPH0441655U/ja
Publication of JPH0441655U publication Critical patent/JPH0441655U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す斜視図、第2
図は本考案の一実施例を示す回路図、第3図は本
考案の第2の実施例を示す回路図、第4図は従来
例を示す斜視図である。 1……雨滴センサ本体、2……発光素子、3…
…受光素子、4……熱線メツシユ、5……パルス
ドライブ回路、6……パワーコントロール部、7
……光電変換アンプ、9……検知領域部、10…
…温度コントロール回路、11……寒冷判定回路
、12……温度センサ、13……スイツチ。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 検知領域内の雨滴の量を検出する雨滴セン
    サにおいて、前記検知領域を所定の隙間を有する
    金属製カバーで覆うとともに該カバーを加熱手段
    により加熱するようにしたことを特徴とする雨滴
    センサ。 (2) 外温を検出する温度検出手段と、前記外温
    が所定温度以下になると低温検知信号を出力する
    寒冷判定手段とを設け、該低温検知信号により前
    記加熱手段を作動させることを特徴とする請求項
    1記載の雨滴センサ。
JP8200290U 1990-07-31 1990-07-31 Pending JPH0441655U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8200290U JPH0441655U (ja) 1990-07-31 1990-07-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8200290U JPH0441655U (ja) 1990-07-31 1990-07-31

Publications (1)

Publication Number Publication Date
JPH0441655U true JPH0441655U (ja) 1992-04-08

Family

ID=31628433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8200290U Pending JPH0441655U (ja) 1990-07-31 1990-07-31

Country Status (1)

Country Link
JP (1) JPH0441655U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7736051B2 (en) 2004-03-30 2010-06-15 Yamatake Corporation Thermoelectric device and mirror surface state detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7736051B2 (en) 2004-03-30 2010-06-15 Yamatake Corporation Thermoelectric device and mirror surface state detection device

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