JPH0225830U - - Google Patents

Info

Publication number
JPH0225830U
JPH0225830U JP10415488U JP10415488U JPH0225830U JP H0225830 U JPH0225830 U JP H0225830U JP 10415488 U JP10415488 U JP 10415488U JP 10415488 U JP10415488 U JP 10415488U JP H0225830 U JPH0225830 U JP H0225830U
Authority
JP
Japan
Prior art keywords
circuit
indicator
detection
signal
magnitude
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
JP10415488U
Other languages
Japanese (ja)
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 JP10415488U priority Critical patent/JPH0225830U/ja
Publication of JPH0225830U publication Critical patent/JPH0225830U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案の一実施例を示す回路図、第
２図は他の実施例を示す回路図、第３図はレベル
検出装置の原理を示す図、第４図は従来のレベル
検出装置の回路を示す図、第５図Ａ．第５図Ｂは
同調点調整を説明するための図である。 ８…高周波信号源、１６…同調回路、１８…駆
動回路、Ｄ…検波ダイオード、ＶＲ１…感度調整
用ボリユーム、Ｍ…指示計、ＬＥＤ１〜ＬＥＤ１
２…バーグラフ表示器。 Fig. 1 is a circuit diagram showing one embodiment of this invention, Fig. 2 is a circuit diagram showing another embodiment, Fig. 3 is a diagram showing the principle of the level detection device, and Fig. 4 is a conventional level detection device. A diagram showing the circuit of FIG. FIG. 5B is a diagram for explaining tuning point adjustment. 8... High frequency signal source, 16... Tuning circuit, 18... Drive circuit, D... Detection diode, VR 1 ... Sensitivity adjustment volume, M... Indicator, LED 1 ~ LED 1
2 ...Bar graph display.

Claims (1)

【実用新案登録請求の範囲】 (1) 検出電極に測定対象物が接していない場合
と測定対象物が接した場合の静電容量の変化に基
づいて、測定対象物のレベルを検出する装置であ
つて、 上記静電容量を一部に含んで構成された共振回
路、 共振回路に信号を供給するとともに、供給信号
の周波数を可変することができる信号源、 共振回路の出力を検波する検波回路、 検波回路の出力信号の大きさを調整するための
感度調整回路、 感度調整回路の出力信号の大きさを表示する指
示計、 感度調整回路の出力によつて、リレーを動作さ
せるための駆動回路、 を備えたレベル検出装置において、 検波回路の出力信号の大きさを表示する第２の
指示計を備えたことを特徴とするレベル検出装置
。 (2) 請求項１記載のレベル検出装置において、 第２の指示計として、バーグラフ型表示器を用
いたことを特徴とするもの。[Claims for Utility Model Registration] (1) A device that detects the level of the object to be measured based on the change in capacitance when the object is not in contact with the detection electrode and when the object is in contact with the detection electrode. A resonant circuit configured to partially include the above-mentioned capacitance, a signal source that can supply a signal to the resonant circuit and vary the frequency of the supplied signal, and a detection circuit that detects the output of the resonant circuit. , a sensitivity adjustment circuit for adjusting the magnitude of the output signal of the detection circuit, an indicator that displays the magnitude of the output signal of the sensitivity adjustment circuit, and a drive circuit for operating the relay by the output of the sensitivity adjustment circuit. , A level detection device comprising: a second indicator that displays the magnitude of the output signal of the detection circuit. (2) The level detection device according to claim 1, characterized in that a bar graph type indicator is used as the second indicator.
JP10415488U 1988-08-05 1988-08-05 Pending JPH0225830U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10415488U JPH0225830U (en) 1988-08-05 1988-08-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10415488U JPH0225830U (en) 1988-08-05 1988-08-05

Publications (1)

Publication Number Publication Date
JPH0225830U true JPH0225830U (en) 1990-02-20

Family

ID=31335619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10415488U Pending JPH0225830U (en) 1988-08-05 1988-08-05

Country Status (1)

Country Link
JP (1) JPH0225830U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018105720A (en) * 2016-12-27 2018-07-05 シーエル計測工業株式会社 Object detection sensor
JP2018128473A (en) * 2018-05-23 2018-08-16 シーエル計測工業株式会社 Object detection sensor
JP2018128472A (en) * 2018-05-23 2018-08-16 シーエル計測工業株式会社 Object detection sensor
JP2018128474A (en) * 2018-05-23 2018-08-16 シーエル計測工業株式会社 Object detection sensor
JP2018128471A (en) * 2018-05-23 2018-08-16 シーエル計測工業株式会社 Object detection sensor
JP2018146592A (en) * 2018-05-23 2018-09-20 シーエル計測工業株式会社 Object detection sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52143061A (en) * 1976-05-24 1977-11-29 Denki Onkyo Co Ltd Liquid position controlling device
JPS5613340B2 (en) * 1975-05-31 1981-03-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5613340B2 (en) * 1975-05-31 1981-03-27
JPS52143061A (en) * 1976-05-24 1977-11-29 Denki Onkyo Co Ltd Liquid position controlling device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018105720A (en) * 2016-12-27 2018-07-05 シーエル計測工業株式会社 Object detection sensor
JP2018128473A (en) * 2018-05-23 2018-08-16 シーエル計測工業株式会社 Object detection sensor
JP2018128472A (en) * 2018-05-23 2018-08-16 シーエル計測工業株式会社 Object detection sensor
JP2018128474A (en) * 2018-05-23 2018-08-16 シーエル計測工業株式会社 Object detection sensor
JP2018128471A (en) * 2018-05-23 2018-08-16 シーエル計測工業株式会社 Object detection sensor
JP2018146592A (en) * 2018-05-23 2018-09-20 シーエル計測工業株式会社 Object detection sensor

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