JPH0399352U - - Google Patents

Info

Publication number
JPH0399352U
JPH0399352U JP863890U JP863890U JPH0399352U JP H0399352 U JPH0399352 U JP H0399352U JP 863890 U JP863890 U JP 863890U JP 863890 U JP863890 U JP 863890U JP H0399352 U JPH0399352 U JP H0399352U
Authority
JP
Japan
Prior art keywords
plate glass
capacitive element
capacitance
determines whether
change
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
JP863890U
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 JP863890U priority Critical patent/JPH0399352U/ja
Publication of JPH0399352U publication Critical patent/JPH0399352U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Description

【図面の簡単な説明】
第1図は本考案の実施例を示す回路図、第2図
は第1図のA−A断面図、第3図は第1図の動作
を示すタイムチヤートである。 図中、1……板ガラス、11,12,13……電
極、20……アンプ、21……発振器、22……
反転回路、23……比較器、30……波形変換回
路、VR……基準電圧。

Claims (1)

  1. 【実用新案登録請求の範囲】 一対の対向する平面状の透明電極からなる容量
    素子を備えた板ガラスと、 該容量素子の容量変化を検出する検出手段と、
    該検出手段により容量素子の容量値が変化したか
    否かを判断し、該容量が変化に基づいて前記板ガ
    ラスの破壊を判断する破壊判断手段とを具備する
    ことを特徴とする板ガラスの破壊検出装置。
JP863890U 1990-01-30 1990-01-30 Pending JPH0399352U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP863890U JPH0399352U (ja) 1990-01-30 1990-01-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP863890U JPH0399352U (ja) 1990-01-30 1990-01-30

Publications (1)

Publication Number Publication Date
JPH0399352U true JPH0399352U (ja) 1991-10-17

Family

ID=31512261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP863890U Pending JPH0399352U (ja) 1990-01-30 1990-01-30

Country Status (1)

Country Link
JP (1) JPH0399352U (ja)

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