KR101724499B1 - 입자상 물질 센서 및 이를 이용한 측정방법 - Google Patents
입자상 물질 센서 및 이를 이용한 측정방법 Download PDFInfo
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- 239000013618 particulate matter Substances 0.000 title claims abstract description 85
- 238000000691 measurement method Methods 0.000 title description 2
- 239000000758 substrate Substances 0.000 claims abstract description 62
- 238000012545 processing Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 2
- 230000001186 cumulative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/226—Construction of measuring vessels; Electrodes therefor
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- 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
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- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/05—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a particulate sensor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
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Abstract
Description
도 2는 본 발명의 실시 예에 따른 입자상 물질 센서 일단부의 결합 단면도이다.
도 3은 본 발명의 실시 예에 따른 입자상 물질 센서의 측정방법을 도시한 순서도이다.
10 ... 제1기판
11 ... 기준전극
20 ... 제2기판
21 ... 온도센서
23 ... 히터전극
30 ... 제3기판
31 ... 메인전극
33 ... 절연층
A ... 감지부
B ... 신호처리부
Claims (12)
- 배기계통의 배기라인에 배치되어 배기가스에 포함된 입자상 물질을 센싱하는 입자상 물질 센서에 있어서,
제1기판, 제2기판 및 제3기판이 하부에서부터 차례로 적층되어 일단부에는 감지부가 형성되고, 타단부에는 신호처리부가 형성되며,
상기 감지부는
상기 제1기판의 일면에 형성되어 일정한 정전용량값을 가지는 기준전극;
상기 제2기판의 일면에 형성되어 온도를 감지하는 온도센서 및 상기 온도센서와 인접하게 형성되는 히터전극; 및
상기 제3기판의 일면에 형성되어 입자상 물질에 의해 정전용량값이 가변되는 메인전극;
을 포함하는 입자상 물질 센서. - 제1항에 있어서,
상기 신호처리부는
상기 기준전극의 일정한 정전용량값과, 메인전극의 가변되는 정전용량값의 차이를 출력하는 입자상 물질 센서. - 제1항에 있어서,
상기 메인전극은
상부를 감싸는 절연층을 더 포함하는 입자상 물질 센서. - 제1항에 있어서,
상기 온도센서는
상기 히터전극의 외면을 감싸도록 형성되는 입자상 물질 센서. - 제1항에 있어서,
상기 온도센서 및 히터전극이 상기 기준전극과 메인전극 사이에서 상기 히터전극 및 메인전극과의 거리가 동일하게 형성되는 입자상 물질 센서. - 제1항에 있어서,
상기 히터전극은
상기 메인전극 상에 형성된 절연층의 상부에 누적된 입자상 물질을 태워 제거하는 입자상 물질 센서. - 제1항에 있어서,
상기 제1기판은
상기 제2기판 및 제3기판의 두께보다 더 두껍게 형성되는 입자상 물질 센서. - 제1항에 있어서,
상기 제1기판 내지 제3기판은
세라믹기판 및 실리콘기판 중, 어느 하나의 기판으로 이루어지는 입자상 물질 센서. - 기준전극이 제1정전용량값을 측정하는 단계;
메인전극이 제2정전용량값을 측정하는 단계;
신호처리부가 상기 제1정전용량값과 제2정전용량값을 입력받는 단계;
상기 신호처리부가 입력받은 제1정전용량값과 제2정전용량값을 이용하여 최종출력전압을 생성하는 단계; 및
상기 기준전극 및 메인전극 사이에 위치한 히터전극이 상기 메인전극 상부의 절연층에 누적된 입자상 물질을 태우는 단계;
를 포함하는 입자상 물질 센서의 측정방법. - 제9항에 있어서,
상기 메인전극이 제2정전용량값을 측정하는 단계는
상기 메인전극의 상부에 형성된 절연층에 누적되는 입자상 물질에 의해 가변되는 제2정전용량값을 측정하는 단계인 입자상 물질 센서의 측정방법. - 제9항에 있어서,
상기 최종출력전압을 생성하는 단계는
상기 제1정전용량값에 의한 제1정전용량변화값, 잡음에 의한 정전용량값, 인가전압 중, 적어도 하나를 이용하여 제1출력전압을 생성하는 단계;
상기 제2정전용량값에 의한 제2정전용량변화값, 잡음에 의한 정전용량값, 인가전압 중, 적어도 하나를 이용하여 제2출력전압을 생성하는 단계; 및
상기 제1출력전압과 제2출력전압의 차이에 따른 최종출력전압을 생성하는 단계;
를 포함하는 입자상 물질 센서의 측정방법. - 삭제
Priority Applications (4)
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KR1020150177466A KR101724499B1 (ko) | 2015-12-11 | 2015-12-11 | 입자상 물질 센서 및 이를 이용한 측정방법 |
US15/187,323 US10151723B2 (en) | 2015-12-11 | 2016-06-20 | Particulate matter sensor and measurement method thereof |
CN201610544526.5A CN106872321B (zh) | 2015-12-11 | 2016-07-12 | 颗粒物传感器及其测量方法 |
DE102016216556.9A DE102016216556B8 (de) | 2015-12-11 | 2016-09-01 | Feinstaubsensor und messverfahren dafür |
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KR1020150177466A KR101724499B1 (ko) | 2015-12-11 | 2015-12-11 | 입자상 물질 센서 및 이를 이용한 측정방법 |
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US (1) | US10151723B2 (ko) |
KR (1) | KR101724499B1 (ko) |
CN (1) | CN106872321B (ko) |
DE (1) | DE102016216556B8 (ko) |
Cited By (1)
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KR20190072866A (ko) * | 2017-12-18 | 2019-06-26 | 현대자동차주식회사 | 급속냉각 방식 pm 센서 및 차량 |
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JP6441161B2 (ja) * | 2015-04-28 | 2018-12-19 | 株式会社デンソー | 粒子状物質検出センサ |
WO2019003612A1 (ja) * | 2017-06-27 | 2019-01-03 | 京セラ株式会社 | センサ基板およびセンサ装置 |
CN111094934A (zh) * | 2017-09-06 | 2020-05-01 | 日本碍子株式会社 | 微粒检测元件以及微粒检测器 |
CN108020494A (zh) * | 2017-12-26 | 2018-05-11 | 中国科学院合肥物质科学研究院 | 一种耐温型高灵敏度电容式碳尘pm快速测量装置及方法 |
WO2020090438A1 (ja) * | 2018-10-31 | 2020-05-07 | 日本碍子株式会社 | 微粒子検出器 |
CN109813770A (zh) * | 2019-03-14 | 2019-05-28 | 大连海事大学 | 一种电容式铁磁性磨粒检测传感器及制作方法 |
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