JPS59178384A - Thermal material detector - Google Patents

Thermal material detector

Info

Publication number
JPS59178384A
JPS59178384A JP58053081A JP5308183A JPS59178384A JP S59178384 A JPS59178384 A JP S59178384A JP 58053081 A JP58053081 A JP 58053081A JP 5308183 A JP5308183 A JP 5308183A JP S59178384 A JPS59178384 A JP S59178384A
Authority
JP
Japan
Prior art keywords
output signal
signal waveform
stage amplifier
diode
thermal material
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
JP58053081A
Other languages
Japanese (ja)
Other versions
JPH0314148B2 (en
Inventor
Makoto Kano
真 狩野
Toshiyuki Hosaka
俊幸 保坂
Fumihiro Misawa
文博 三沢
Shigeo Sasaki
茂雄 佐々木
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.)
Shiojiri Kogyo KK
Original Assignee
Shiojiri Kogyo KK
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 Shiojiri Kogyo KK filed Critical Shiojiri Kogyo KK
Priority to JP58053081A priority Critical patent/JPS59178384A/en
Publication of JPS59178384A publication Critical patent/JPS59178384A/en
Publication of JPH0314148B2 publication Critical patent/JPH0314148B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • G01V9/005Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 by thermal methods, e.g. after generation of heat by chemical reactions

Abstract

PURPOSE:To reduce a cost with a lessened number of parts by using a diode as a thermal material detection level setting means at a thermal material detection signal section. CONSTITUTION:When infrared rays radiated from an object to be detected is converted into heat with a photoelectric converter 31 and an output signal (f) of a first stage amplifier 45 is inputted into a diode 38, the level below forward voltage is removed. As the forward voltage from the diode 38 corresponds to the level of detecting the thermal material, noises due to temperature change by wind, atmospheric temperature change and the like can be removed. Then, an output signal (g) is inputted into the base of an NPN transistor 43 via the subsequent stage amplifier 46 and an output signal (i) is produced. This enables the setting of the detection level of the thermal material only by connecting a diode after the first stage amplifier in stead of using a wind comparator comprising two comparators thereby lessening the number of parts.

Description

【発明の詳細な説明】 イ。産業上の利用分野 本発明は、熱材検出装置に関し、防犯、玩則、四報装置
、自rpj)点滅装置、温度計画、その他あらゆる物体
の熱材検出装置に用いゐ事ができる。
[Detailed Description of the Invention] A. INDUSTRIAL APPLICATION FIELD The present invention relates to a heat material detection device, and can be used for crime prevention, toy regulations, four-alarm devices, automatic RPJ/flashing devices, temperature planning devices, and other heat material detection devices for all kinds of objects.

口、従来の技術 従来の熱材検出装置は、第1凶vL示す6日く、被検出
熱材より放射さi’1−/)赤外光に、光電変換器1(
光電変換器1は感知部が2素子のデュアルタイプである
)、ソース抵抗2、バイパスコンデンサろで熱電変換葡
行なっている。第2図(a)に出力信号波形(a)7元
す。出力信号波形(a)は初段増幅器20に入力されろ
。初段増幅器20は帯域フィルタであり、その川辺の抵
抗4、コンデンサ5でローカットフィルタ、抵抗6、コ
ンデンサ7でノ・イカソトフイルタ?構旗していo v
 J 2図(b)[出力信号波形(b)を示す。この出
力信号波形(b)は次段増幅器21へ入力さルゐ、ここ
で前記初段増幅器20と同じ様に見なせば、抵抗8、コ
ンデンサ9でローカットフィルタ、抵抗101コンデン
サ11でハイカットフィルタの構成となめ。また、抵抗
13,14,15.16とコンデンサ12に、r、ジ、
次段増幅器21の動作レベルヶ決定している。第2〔ス
(clに出力信号波形(C)ケ示す。出力信号波形(こ
)がウィンドコンパレータ入力となゐ。ウィンドコンパ
レータば、比較器22.23で構成されておジ、熱材検
出し′λ、・1−の設定慣行なっていう。
BACKGROUND OF THE INVENTION A conventional thermal material detection device converts a photoelectric converter 1 (
The photoelectric converter 1 performs thermoelectric conversion using a sensing section (of a dual type with two elements), a source resistor 2, and a bypass capacitor. FIG. 2(a) shows the output signal waveform (a) of 7 elements. The output signal waveform (a) is input to the first stage amplifier 20. The first stage amplifier 20 is a bandpass filter, and the resistor 4 and capacitor 5 on its side are a low-cut filter, and the resistor 6 and capacitor 7 are a low-cut filter. Flag in formation o v
J2 Figure (b) [Output signal waveform (b) is shown. This output signal waveform (b) is input to the next-stage amplifier 21. Here, if viewed in the same way as the first-stage amplifier 20, the resistor 8 and capacitor 9 constitute a low-cut filter, and the resistor 101 and capacitor 11 constitute a high-cut filter. Toname. Also, resistors 13, 14, 15.16 and capacitor 12 are connected to
The operating level of the next stage amplifier 21 is determined. The output signal waveform (C) is shown in the second screen (cl). The output signal waveform (C) is the input to the window comparator. ′λ,・1− setting convention.

抵抗13,14,15.I6で決めた基準電位に対して
出力信号波形(c)が越え/)刀・どう刀1で動作しこ
の信Ji4iはN P N )ランジスグ19のベース
に入力されて出力信号波形fd)勿出力す41n第2図
td)にこの出力信号波形1a) k示す。
Resistors 13, 14, 15. The output signal waveform (c) exceeds the reference potential determined by I6/) This signal operates with the sword 1, and this signal Ji4i is input to the base of the Ranjisug 19 and the output signal waveform fd) is output This output signal waveform 1a) is shown in Figure 2 (td).

211発明の目的 不発明は、従来の性能は維持するとともに、部品点数會
少なくし、コストダウンr計る事7目的とする。
211 Purpose of the Invention The purpose of the invention is to maintain the conventional performance, reduce the number of parts, and reduce costs.

二1発明の構成 本発明ば、第5図に示す如く、被検出材より放射上れる
赤外光を、光電変換器31で熱電変換を行なっている。
21. Structure of the Invention According to the present invention, as shown in FIG. 5, infrared light emitted from the material to be detected is subjected to thermoelectric conversion by a photoelectric converter 31.

光電変換器31の感知部に単一素子のシングルタイプで
ある。第4図(θ)[、この出力信号波形(θ)葡示す
。出力信号波形(θ)は、GND刀1ら数百mVの点に
直流バイアス点を待ち、人が近づく事[より、前記直流
バイアス意力)らM m V→−側に立ち上る。また人
が遠ざ刀5ゐ串VCより数mV−側へ立ち下る。この出
力信号波形(θ)は、初段増幅器45(c入力へれ、抵
抗32.34で増幅IWケ決定し、コンデンサ55.3
5とで初段増幅器42葡構成している。ここでに、前記
出力信号波形44葡、数Vに増幅している。駆4図(f
)に、この出力信号波形(f) k示す。この出力信号
波形(f)がダイオード38に入力されるとダイオード
の順方向電圧(約o、 6 v )以下のレベルが除去
された波形のみが出力される。すなわちここでは、ダイ
オード3Bの順方向電圧が熱材検出レベルになっている
、この為風による温朋変化、気温耽変化等によめノイズ
ケ除去することができる。第4図(g)に、この出力信
号波形(gl k示す。
The sensing part of the photoelectric converter 31 is a single type with a single element. FIG. 4 shows the output signal waveform (θ). The output signal waveform (θ) waits for the DC bias point at a point several hundred mV from the GND sword 1, and rises to the M m V→- side as a person approaches (the above-mentioned DC bias willpower). Also, a person falls several mV- from the 5-meter VC. This output signal waveform (θ) is determined by the first stage amplifier 45 (c input, amplified IW by resistor 32.34, capacitor 55.3
5 constitutes 42 first-stage amplifiers. Here, the output signal waveform 44 is amplified to several volts. Kaku 4 diagram (f
) shows this output signal waveform (f)k. When this output signal waveform (f) is input to the diode 38, only the waveform in which the level below the diode's forward voltage (approximately 6 V) has been removed is output. That is, here, the forward voltage of the diode 3B is at the heating material detection level, so that noise caused by temperature changes due to wind, temperature changes, etc. can be removed. This output signal waveform (glk) is shown in FIG. 4(g).

この出力信号7波形(g)が、次段増幅器46VC入力
される。抵抗39.40により増幅度を決定し、次段増
幅器46ケ構成している。ここで出力信号波形(gj 
’に数V[増幅している。抵抗41は次段増幅器46の
動作レベルヶ決めている。第4図(b)にこの出力信号
波形fh) ’、1示す。出力信号波形(b)i従来の
回路図第1図の出力信号波形jd)の゛両所と同じとな
り、比較器21.22と抵抗12,13,14゜15.
16コンデンサ12が不安とな/)。この出力信号波形
(h)が、NPN)ランジスタ46のペースに入力され
て出力信号波形11)’z比出力/)。第4図0)にこ
の出力信号波形(i) ’z示す。
This output signal 7 waveform (g) is input to the next stage amplifier 46VC. The degree of amplification is determined by resistors 39 and 40, and 46 next-stage amplifiers are constructed. Here, the output signal waveform (gj
' is amplified by several V. The resistor 41 determines the operating level of the next stage amplifier 46. FIG. 4(b) shows this output signal waveform fh)',1. The output signal waveform (b) i is the same as the output signal waveform (jd) in the conventional circuit diagram of FIG.
I'm worried about 16 capacitor 12/). This output signal waveform (h) is input to the pace of the NPN transistor 46 to produce an output signal waveform 11)'z ratio output/). The output signal waveform (i)'z is shown in FIG. 4 (0).

ポ1発明の効果 本発明は、従来の熱材検出装置と比べ注能會変えること
なく、光電変換器の感知部が2素子であるデュアルクィ
ブから感知部が単一素子であるシングルタイプに交換し
、ソース抵抗が除去さ几た。
Point 1 Effects of the Invention Compared to conventional thermal material detection devices, the present invention replaces the dual type photoelectric converter with a two-element sensing part to a single type with a single-element sensing part without changing the function. , the source resistance is removed.

才た熱材検出レベルの設定は、比較器2つに工ゐウィン
ドコンパレータ〃ニラ初段を胃幅器の後に接続したダイ
オードでできる様になり、従来の回路では、光電変換器
7)hら出力償才1.た微小1a碕も初段・次段増幅器
VrCより増幅されていたが、本発明に於いてに、初段
増巾器の後に接続した、光電変換器後1らの微小信号で
あっても除去できろ様になった。
The effective setting of the hot material detection level can now be done by using two comparators and a window comparator.The first stage of the window comparator is connected after the gasket. Redemption 1. The minute signal 1a was also amplified by the first-stage and second-stage amplifiers VrC, but in the present invention, even the minute signal from the photoelectric converter connected after the first-stage amplifier can be removed. It became like that.

また、熱材検出レベルヶ虻に高くしたい場合は、ダイオ
ードケ順万回に直列に、接続する事により、使用者の要
望していゐ熱材検出レベルを設定できる。
In addition, if the user wants to increase the heating material detection level to an extremely high level, by connecting the diodes in series, the user can set the heating material detection level desired by the user.

1ユ上の様に、部品点数が少なくななことに、J:リコ
ストダウンがホカられた。
J: Re-cost reduction was overlooked because the number of parts was reduced as in the case of 1 unit above.

同、センサーを変えることに、r、り温1Wセンサ等に
も使用可能であめ。
Similarly, if you change the sensor, it can also be used as a 1W temperature sensor.

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

第1図は、従来の回路図である。 1・・・光電変換器 2・・・ソース抵抗 3・・・バイハスコンデンサ 4.6,8,10,13,14,15,16゜17.1
8・・・抵抗 5.7,9,11.12・・・コンデンサ19・・・N
PN トランジスタ 20・・・初段増幅器 21・・・次段増幅器 22・・・比較器 23・・・比較器 第2図は、従来の各部用力信号波形図である。 (a)・・光電変換器後の出力1g号波形(bl・・・
初段増幅器後の出力信号波形(cl・・次段増幅器後の
出力信号波形(ti)・・・(v P N )ランジス
タ後の出力信号波形第3図は、不発明の回路図である。 31・・・光電変換器 32.34,36,40,41,42.44・・・・・
・・・・・・・抵抗 3ろ、35.37・・・コンデンサ 38・・・ダイオード 39・・・次段増幅器動作レベル設定用抵抗43・・・
NP役トランジスタ 第4図は、本発明の各部用力信号波形図である。 (8)・・光電変換器後の出力信号波形(f)・・・初
段増幅器後の出力信号波形(g)・・・i−イオード後
の出力信号波形(h)・・・次段増幅器後の出力信号波
形(1)・・・NPNトランジスタの出力信号波形以 
  上 出願人 塩尻工業株式会社 代理人 弁理士最上  務 第 / 辺 第 21叉 第3図 党4図
FIG. 1 is a conventional circuit diagram. 1...Photoelectric converter 2...Source resistor 3...Bihas capacitor 4.6, 8, 10, 13, 14, 15, 16° 17.1
8...Resistor 5.7, 9, 11.12...Capacitor 19...N
PN transistor 20...First stage amplifier 21...Next stage amplifier 22...Comparator 23...Comparator FIG. 2 is a conventional force signal waveform diagram for each part. (a)... Output 1g waveform after photoelectric converter (bl...
Output signal waveform after the first stage amplifier (cl... Output signal waveform after the next stage amplifier (ti)...(v P N ) Output signal waveform after the transistor Figure 3 is an uninvented circuit diagram. 31 ...Photoelectric converter 32.34, 36, 40, 41, 42.44...
...... Resistor 3, 35.37... Capacitor 38... Diode 39... Resistor 43 for setting the next stage amplifier operating level...
NP role transistor FIG. 4 is a power signal waveform diagram of each part of the present invention. (8)...Output signal waveform after photoelectric converter (f)...Output signal waveform after first stage amplifier (g)...Output signal waveform after i-ion (h)...After next stage amplifier Output signal waveform (1)...Output signal waveform of NPN transistor
Applicant: Shiojiri Kogyo Co., Ltd. Agent: Patent Attorney Mogami Tsutomu No. 21, No. 3, Part No. 4

Claims (1)

【特許請求の範囲】[Claims] 被検出熱材力)らの赤外光ヶ受光する光電変換手段と、
この光電変換手段の出力に応じて熱材検出信号?発生す
る出力手段よf) fyWる熱材検出装置に於て、該熱
材検出イ百号部の熱材検出レベル設定手段として、ダイ
オードケ用いた$7特徴とする熱材検出装置。
a photoelectric conversion means for receiving infrared light from the thermal material to be detected;
A heating material detection signal according to the output of this photoelectric conversion means? A heating material detection device characterized in that a diode is used as a heating material detection level setting means of the heating material detection part 100 in the heating material detection device f) fyW.
JP58053081A 1983-03-29 1983-03-29 Thermal material detector Granted JPS59178384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58053081A JPS59178384A (en) 1983-03-29 1983-03-29 Thermal material detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58053081A JPS59178384A (en) 1983-03-29 1983-03-29 Thermal material detector

Publications (2)

Publication Number Publication Date
JPS59178384A true JPS59178384A (en) 1984-10-09
JPH0314148B2 JPH0314148B2 (en) 1991-02-26

Family

ID=12932843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58053081A Granted JPS59178384A (en) 1983-03-29 1983-03-29 Thermal material detector

Country Status (1)

Country Link
JP (1) JPS59178384A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010197093A (en) * 2009-02-23 2010-09-09 Hitachi Automotive Systems Ltd State determination device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8338162B2 (en) 2009-04-17 2012-12-25 Anaeropharma Science, Inc. Obligately anaerobic mutant lactic acid bacterium and preparation method therefor, and expression vector functioning in obligately anaerobic lactic acid bacterium
US8778332B2 (en) 2009-10-22 2014-07-15 Kabushiki Kaisha Yakult Honsha Agent for reducing risk of developing cancer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010197093A (en) * 2009-02-23 2010-09-09 Hitachi Automotive Systems Ltd State determination device

Also Published As

Publication number Publication date
JPH0314148B2 (en) 1991-02-26

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