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WO2009031528A1 - 信号検出装置 - Google Patents

信号検出装置 Download PDF

Info

Publication number
WO2009031528A1
WO2009031528A1 PCT/JP2008/065750 JP2008065750W WO2009031528A1 WO 2009031528 A1 WO2009031528 A1 WO 2009031528A1 JP 2008065750 W JP2008065750 W JP 2008065750W WO 2009031528 A1 WO2009031528 A1 WO 2009031528A1
Authority
WO
WIPO (PCT)
Prior art keywords
output
signal
detection device
amplifier
signal 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.)
Ceased
Application number
PCT/JP2008/065750
Other languages
English (en)
French (fr)
Inventor
Hiroshi Hatanaka
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.)
Azbil Corp
Original Assignee
Azbil Corp
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 Azbil Corp filed Critical Azbil Corp
Priority to JP2009531230A priority Critical patent/JP4756614B2/ja
Publication of WO2009031528A1 publication Critical patent/WO2009031528A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/10—Calibration or testing
    • H03M1/1009—Calibration
    • H03M1/1014—Calibration at one point of the transfer characteristic, i.e. by adjusting a single reference value, e.g. bias or gain error
    • H03M1/1019—Calibration at one point of the transfer characteristic, i.e. by adjusting a single reference value, e.g. bias or gain error by storing a corrected or correction value in a digital look-up table
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/941—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector
    • H03K2217/94102—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector characterised by the type of activation
    • H03K2217/94108—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector characterised by the type of activation making use of reflection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/129—Means for adapting the input signal to the range the converter can handle, e.g. limiting, pre-scaling ; Out-of-range indication

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Analogue/Digital Conversion (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

　例えば反射形光電センサにおけるセンサ信号を増幅器を介して増幅し、この増幅器の出力信号をＡ／Ｄ変換器を用いてデジタル変換した出力から前記センサ信号のレベルを検出する信号検出装置であって、前記増幅器の出力に所定のオフセットを与えると共に、無信号時における前記Ａ／Ｄ変換器の出力の平均値を予めメモリに記憶し、通常動作時における前記Ａ／Ｄ変換器の出力と前記平均値との差を前記センサ信号のレベルとして検出することを特徴とする。
PCT/JP2008/065750 2007-09-05 2008-09-02 信号検出装置 Ceased WO2009031528A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009531230A JP4756614B2 (ja) 2007-09-05 2008-09-02 信号検出装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-230136 2007-09-05
JP2007230136 2007-09-05

Publications (1)

Publication Number Publication Date
WO2009031528A1 true WO2009031528A1 (ja) 2009-03-12

Family

ID=40428844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065750 Ceased WO2009031528A1 (ja) 2007-09-05 2008-09-02 信号検出装置

Country Status (3)

Country Link
JP (1) JP4756614B2 (ja)
TW (1) TWI442709B (ja)
WO (1) WO2009031528A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104282779A (zh) * 2013-07-04 2015-01-14 阿自倍尔株式会社 投光元件驱动电路以及光电传感器
EP3068053A4 (en) * 2014-07-21 2017-03-29 Sanechips Technology Co., Ltd. A control circuit and terminal
CN107241097A (zh) * 2016-03-28 2017-10-10 中芯国际集成电路制造(上海)有限公司 一种用于测量高速动态比较器热噪声的系统及方法
WO2022049291A1 (en) * 2020-09-07 2022-03-10 Ams International Ag Proximity sensing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8854028B2 (en) * 2011-11-18 2014-10-07 Realtek Semiconductor Corp. Signal level detector and method thereof
JP6884050B2 (ja) * 2017-06-29 2021-06-09 アズビル株式会社 光電スイッチ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0434386A (ja) * 1990-05-31 1992-02-05 Omron Corp 光電センサの受光量変化補正方法
JP2000216672A (ja) * 1995-07-27 2000-08-04 Omron Corp パッシブ型の検知装置
JP2006080896A (ja) * 2004-09-09 2006-03-23 Keyence Corp 検出スイッチ、光電スイッチ及び検出方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0434386A (ja) * 1990-05-31 1992-02-05 Omron Corp 光電センサの受光量変化補正方法
JP2000216672A (ja) * 1995-07-27 2000-08-04 Omron Corp パッシブ型の検知装置
JP2006080896A (ja) * 2004-09-09 2006-03-23 Keyence Corp 検出スイッチ、光電スイッチ及び検出方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104282779A (zh) * 2013-07-04 2015-01-14 阿自倍尔株式会社 投光元件驱动电路以及光电传感器
EP3068053A4 (en) * 2014-07-21 2017-03-29 Sanechips Technology Co., Ltd. A control circuit and terminal
US10033380B2 (en) 2014-07-21 2018-07-24 Sanechips Technology Co., Ltd Control circuit and terminal
CN107241097A (zh) * 2016-03-28 2017-10-10 中芯国际集成电路制造(上海)有限公司 一种用于测量高速动态比较器热噪声的系统及方法
WO2022049291A1 (en) * 2020-09-07 2022-03-10 Ams International Ag Proximity sensing

Also Published As

Publication number Publication date
TWI442709B (zh) 2014-06-21
JPWO2009031528A1 (ja) 2010-12-16
TW200926610A (en) 2009-06-16
JP4756614B2 (ja) 2011-08-24

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