KR960029785A - 가스센서 - Google Patents

가스센서 Download PDF

Info

Publication number
KR960029785A
KR960029785A KR1019950001178A KR19950001178A KR960029785A KR 960029785 A KR960029785 A KR 960029785A KR 1019950001178 A KR1019950001178 A KR 1019950001178A KR 19950001178 A KR19950001178 A KR 19950001178A KR 960029785 A KR960029785 A KR 960029785A
Authority
KR
South Korea
Prior art keywords
heater
gas sensor
gas
switch
temperature region
Prior art date
Application number
KR1019950001178A
Other languages
English (en)
Inventor
권철한
윤동현
이규정
박현수
홍형기
신현우
김성태
Original Assignee
구자홍
Lg 전자 주식회사
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 구자홍, Lg 전자 주식회사 filed Critical 구자홍
Priority to KR1019950001178A priority Critical patent/KR960029785A/ko
Priority to US08/590,299 priority patent/US5621162A/en
Priority to CN96101315A priority patent/CN1147635A/zh
Publication of KR960029785A publication Critical patent/KR960029785A/ko

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/025—Fruits or vegetables

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

본 발명은 가스센서에 관한 것으로, 특히 과일 또는 채소류 등이 유입 또는 반출됨을 감지할 수 있도록한 가스센서에 관한 것이다.
이와 같은 본 발명의 가스센서는 산화주석과 산화텅스텐이 소정비율로 혼합된 화합물로 형성되어 식품으로부터 발생되는 가스성분을 감지하는 감지막과, 상기 가스성분을 감지함에 따라 변화되는 감지막의 저항변화를 측정하기 위한 전극과, 센싱 동작온도로 센서를 가열하기 위한 히터와, 상기 히터가 제1온도영역과 제2온도영역으로 동작되도록 히터의 공급전원을 스위칭하는 스위치를 포함하여 구성된 것이다.

Description

가스센서
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래의 식품류 신선도 감지를 위한 가스센서 구조도, 제2도는 종래의 식품류 신선도 감지를 위한 가스센서 공정 순서도, 제3도는 종래의 가스센서 동작을 설명하기 위한 회로도, 제4도는 본 발명의 가스센서 평면도, 제5도는 본 발명 가스센서의 조립도, 제6도는 본 발명 가스센서의 동작 회로도, 제7도는 본 발명 가스센서의 출력 파형도.

Claims (3)

  1. 산화주석과 산화텅스텐이 소정비율로 혼합된 화합물로 형성되어 식품으로부터 발생되는 가스성분을 감지하는 감지막과, 상기 가스성분을 감지함에 따라 변화되는 감지막의 저항변화를 측정하기 위한 전극과, 센싱 동작온도로 센서를 가열하기 위한 히터와, 상기 히터가 제1온도영역과 제2온도영역으로 동작되도록 히터의 공급전원을 스위칭하는 스위치를 포함하여 구성됨을 특징으로 하는 가스센서.
  2. 제1항에 있어서, 감지막의 성분비는 80∼95wt%의 산화주석 ＋5∼20wt%의 산화텅스텐임을 특징으로 하는 가스센서.
  3. 제1항에 있어서, 히터의 제1온도영역은 250∼350℃이고, 제2온도영역은 100∼200℃가 되도록 스위치가 공급전원을 스위칭함을 특징으로 하는 가스센서.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950001178A 1995-01-24 1995-01-24 가스센서 KR960029785A (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019950001178A KR960029785A (ko) 1995-01-24 1995-01-24 가스센서
US08/590,299 US5621162A (en) 1995-01-24 1996-01-23 Gas sensor for detecting gases generated from food products
CN96101315A CN1147635A (zh) 1995-01-24 1996-01-24 气敏元件及其制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950001178A KR960029785A (ko) 1995-01-24 1995-01-24 가스센서

Publications (1)

Publication Number Publication Date
KR960029785A true KR960029785A (ko) 1996-08-17

Family

ID=19407150

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950001178A KR960029785A (ko) 1995-01-24 1995-01-24 가스센서

Country Status (3)

Country Link
US (1) US5621162A (ko)
KR (1) KR960029785A (ko)
CN (1) CN1147635A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101104215B1 (ko) * 2009-06-30 2012-01-10 한국이엔에쓰 주식회사 황화합물 검출용 가스 센서 제조방법

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9501461D0 (en) * 1994-06-20 1995-03-15 Capteur Sensors & Analysers Detection of ozone
GB9709840D0 (en) * 1997-05-15 1997-07-09 Sinclair Int Ltd Assessment of the condition of fruit and vegetables
US6085576A (en) * 1998-03-20 2000-07-11 Cyrano Sciences, Inc. Handheld sensing apparatus
DE69938662D1 (de) * 1998-06-19 2008-06-19 Cyrano Sciences Inc Spurendetektion von analyten mit hilfe artifizieller olfaktometrie
AU5330200A (en) * 1999-06-18 2001-01-09 Michigan State University Method and apparatus for the detection of volatile products in a sample
WO2003075745A2 (en) * 2002-03-04 2003-09-18 Cyrano Sciences, Inc. Detection, diagnosis, and monitoring of a medical condition or disease with artificial olfactometry
US20040232535A1 (en) * 2003-05-22 2004-11-25 Terry Tarn Microelectromechanical device packages with integral heaters
US20050093134A1 (en) 2003-10-30 2005-05-05 Terry Tarn Device packages with low stress assembly process
US7905154B2 (en) * 2004-11-29 2011-03-15 Jones Jr Arthur T Apparatus and method of contaminant detection for food industry
EP1831627B1 (en) * 2004-12-16 2016-12-07 Danfoss A/S A method for controlling temperature in a refrigeration system
US20060136078A1 (en) * 2004-12-16 2006-06-22 Lung-Chuan Chen Method of information technology application for food process
CN1308673C (zh) * 2005-01-19 2007-04-04 山东师范大学 叠加式动物食品测鲜气敏器件及其制作方法
JP4692026B2 (ja) * 2005-03-08 2011-06-01 パナソニック株式会社 ガスセンサ
US7508063B2 (en) * 2005-04-05 2009-03-24 Texas Instruments Incorporated Low cost hermetically sealed package
US7408250B2 (en) * 2005-04-05 2008-08-05 Texas Instruments Incorporated Micromirror array device with compliant adhesive
WO2007049937A2 (en) * 2005-10-27 2007-05-03 Lg Electronics Inc. Refrigerator
JP4925835B2 (ja) * 2007-01-12 2012-05-09 日東電工株式会社 物質検知センサ
EP2642289A1 (en) * 2012-03-20 2013-09-25 Sensirion AG Portable electronic device
WO2015087906A1 (ja) * 2013-12-13 2015-06-18 富士電機株式会社 ガス検出装置およびその方法
GB2550299A (en) 2014-12-31 2017-11-15 Wal Mart Stores Inc System and method for monitoring gas emission of perishable products
WO2016156445A1 (en) * 2015-03-31 2016-10-06 Koninklijke Philips N.V. Freshness detection
US10531555B1 (en) * 2016-03-22 2020-01-07 The United States Of America As Represented By The Secretary Of The Army Tungsten oxide thermal shield
US10466111B2 (en) 2016-05-05 2019-11-05 Walmart Apollo, Llc Systems and methods for monitoring temperature or movement of merchandise
EP3542152B1 (en) 2016-11-21 2020-04-29 Unilever N.V. A gas sensor for detecting a gas component
CN116629743A (zh) 2017-05-23 2023-08-22 沃尔玛阿波罗有限责任公司 自动化检查系统
CN109798725A (zh) * 2017-11-16 2019-05-24 众智光电科技股份有限公司 保鲜冰箱
US11448632B2 (en) 2018-03-19 2022-09-20 Walmart Apollo, Llc System and method for the determination of produce shelf life
US11774422B2 (en) * 2018-07-25 2023-10-03 Stmicroelectronics Pte Ltd Selective multi-gas detection through pulse heating in a gas sensor
WO2020023762A1 (en) 2018-07-26 2020-01-30 Walmart Apollo, Llc System and method for produce detection and classification
US11715059B2 (en) 2018-10-12 2023-08-01 Walmart Apollo, Llc Systems and methods for condition compliance
WO2020106332A1 (en) 2018-11-20 2020-05-28 Walmart Apollo, Llc Systems and methods for assessing products
FR3089010B1 (fr) * 2018-11-28 2022-07-29 Rubix S&I Procédé de détection d’au moins une quantité de gaz d’au moins un gaz prédéterminé à partir d’un capteur de mesure d’une pluralité de gaz
EP4019864A4 (en) * 2019-09-30 2023-09-20 Daikin Industries, Ltd. DEVICE FOR QUALITY DETERMINATION
IT202000018679A1 (it) 2020-07-30 2022-01-30 Taua S R L Dispositivo rilevatore di gas
CN116294419A (zh) * 2023-05-22 2023-06-23 合肥美的电冰箱有限公司 净味方法、装置、制冷设备、电子设备及存储介质

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU76937A1 (ko) * 1977-03-11 1978-10-18
JPS5766347A (en) * 1980-10-09 1982-04-22 Hitachi Ltd Detector for mixture gas
US4502321A (en) * 1981-02-27 1985-03-05 Capital Controls Apparatus and method for measuring the concentration of gases
US4520651A (en) * 1982-04-19 1985-06-04 Ira Litman Method and apparatus for obtaining the combined aroma of several substances
CN85100146B (zh) * 1985-04-01 1987-06-10 清华大学 热--湿--气多功能敏感陶瓷元件及其制造方法
US5306522A (en) * 1986-03-24 1994-04-26 Ensci, Inc. Process for coating a substrate with zinc oxide and uses for coated substrates
US4770027A (en) * 1986-03-24 1988-09-13 Katuo Ehara Method of measuring concentrations of odors and a device therefor
JPH0695082B2 (ja) * 1987-10-08 1994-11-24 新コスモス電機株式会社 吸引式オゾンガス検知器
US4893108A (en) * 1988-06-24 1990-01-09 The United States Of America As Represented By The Secretary Of The Air Force Halogen detection with solid state sensor
EP0366863B1 (en) * 1988-10-31 1994-08-31 Fujikura Ltd. An oxygen sensor device
JP2919864B2 (ja) * 1989-09-18 1999-07-19 フィガロ技研株式会社 Ｎｏ▲下２▼センサ及びその製造方法
US5222388A (en) * 1991-03-19 1993-06-29 University Of California Patent, Trademark & Copyright Office Nitrogen dioxide detection
US5223783A (en) * 1992-05-01 1993-06-29 Willis Technologies International, Inc. Method and device for detecting reducing gas using semiconductor gas sensor
US5448906A (en) * 1994-07-26 1995-09-12 Rockwell International Corporation Ambient temperature gas sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101104215B1 (ko) * 2009-06-30 2012-01-10 한국이엔에쓰 주식회사 황화합물 검출용 가스 센서 제조방법

Also Published As

Publication number Publication date
CN1147635A (zh) 1997-04-16
US5621162A (en) 1997-04-15

Similar Documents

Publication Publication Date Title
KR960029785A (ko) 가스센서
KR940009596A (ko) 가열조리기
KR880010315A (ko) 이상상태 검출기
KR870003381A (ko) 습도 검출기
KR890017513A (ko) 전자렌지를 구비한 냉동, 냉장고 제어회로
US3082305A (en) Thermal switch construction and system
KR930009478A (ko) 소닉 디바이스 센서를 이용한 가열방법
KR930004697A (ko) 곤로의 제어장치
KR900002065A (ko) 전자레인지의 온도 감지 방법
KR960024044A (ko) 전자레인지의 이상동작검출장치 및 방법
KR930019175A (ko) 조리 장치
KR950007793A (ko) 식기 세척기의 히터 과열 차단장치
TW341641B (en) Heating apparatus
KR940009799A (ko) 마이크로센서의 구동제어장치
KR960031942A (ko) 냉장고의 야채실 신선도 제어장치
KR950006388A (ko) 가스보일러의 재점화온도 제어방법
KR930011774A (ko) 전자레인지의 가스감지처리방법
GB1363541A (en) Electrical switches
KR930021137A (ko) 조리기
KR840009139A (ko) 열선형 반도체 가스검지장치
KR970002120A (ko) 전자조리기의 조리제어장치
KR950012545A (ko) 전자렌지의 마그네트론 과열방지장치
JPS5578311A (en) Temperature control unit
KR930004701A (ko) 곤로의 제어장치
KR930003824A (ko) 요구르팅 포트의 가열방법

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application