JPS60137392U - Amplification circuit for hot wire detector - Google Patents

Amplification circuit for hot wire detector

Info

Publication number
JPS60137392U
JPS60137392U JP2470284U JP2470284U JPS60137392U JP S60137392 U JPS60137392 U JP S60137392U JP 2470284 U JP2470284 U JP 2470284U JP 2470284 U JP2470284 U JP 2470284U JP S60137392 U JPS60137392 U JP S60137392U
Authority
JP
Japan
Prior art keywords
amplification circuit
hot wire
wire detector
hot
turned
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
JP2470284U
Other languages
Japanese (ja)
Inventor
秋山　正一
Original Assignee
松下電工株式会社
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 松下電工株式会社 filed Critical 松下電工株式会社
Priority to JP2470284U priority Critical patent/JPS60137392U/en
Publication of JPS60137392U publication Critical patent/JPS60137392U/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来例の回路図、第２図は同上の動作説明図、
第３図は本考案の一実施例の回路図、第４図は同上の動
作説明図であり、１は赤外線検出素子、３ａ、３ｂは増
幅器、Ｃ１ｔ　Ｃｓハコ７７’　７す、４ａ、４ｂはＦ
ＥＴである。Figure 1 is a circuit diagram of a conventional example, Figure 2 is an explanatory diagram of the same operation as above,
FIG. 3 is a circuit diagram of an embodiment of the present invention, and FIG. 4 is an explanatory diagram of the same operation, in which 1 is an infrared detection element, 3a, 3b are amplifiers, C1tCs box 77'7, 4a, 4b are F
It is ET.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 焦電型赤外線検出素子から発生する略Ｗ数Ｈｚ程度まで
の低周波出力を増幅する１段乃至複数段の増幅器からな
る熱線式検知器の増幅回路において、１段乃至複数段設
けである増幅器の負帰回路部に並列に電源投入時に所定
時間オンさせるスイッチング手段を並列に接続して成る
熱線式検知器の増幅回路。In the amplification circuit of a hot-wire detector consisting of one or more stages of amplifiers that amplify the low frequency output up to about W Hz generated from a pyroelectric infrared detection element, An amplifier circuit for a hot-wire type detector, which includes a negative feedback circuit connected in parallel with a switching means that is turned on for a predetermined period of time when the power is turned on.
JP2470284U 1984-02-23 1984-02-23 Amplification circuit for hot wire detector Pending JPS60137392U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2470284U JPS60137392U (en) 1984-02-23 1984-02-23 Amplification circuit for hot wire detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2470284U JPS60137392U (en) 1984-02-23 1984-02-23 Amplification circuit for hot wire detector

Publications (1)

Publication Number Publication Date
JPS60137392U true JPS60137392U (en) 1985-09-11

Family

ID=30519098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2470284U Pending JPS60137392U (en) 1984-02-23 1984-02-23 Amplification circuit for hot wire detector

Country Status (1)

Country Link
JP (1) JPS60137392U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10267759A (en) * 1997-03-26 1998-10-09 Matsushita Electric Works Ltd Piezoelectric type infrared ray detecting device
JP2008199304A (en) * 2007-02-13 2008-08-28 Matsushita Electric Works Ltd Current-voltage converting circuit and smoke sensor including the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170607A (en) * 1981-04-13 1982-10-20 Optic Kk Amplifying circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170607A (en) * 1981-04-13 1982-10-20 Optic Kk Amplifying circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10267759A (en) * 1997-03-26 1998-10-09 Matsushita Electric Works Ltd Piezoelectric type infrared ray detecting device
JP2008199304A (en) * 2007-02-13 2008-08-28 Matsushita Electric Works Ltd Current-voltage converting circuit and smoke sensor including the same

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