JP5717136B2 - 粒子測定装置 - Google Patents
粒子測定装置 Download PDFInfo
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- JP5717136B2 JP5717136B2 JP2011103666A JP2011103666A JP5717136B2 JP 5717136 B2 JP5717136 B2 JP 5717136B2 JP 2011103666 A JP2011103666 A JP 2011103666A JP 2011103666 A JP2011103666 A JP 2011103666A JP 5717136 B2 JP5717136 B2 JP 5717136B2
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- light
- light receiving
- receiving sensor
- particle
- optical axis
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- 239000002245 particle Substances 0.000 title claims description 105
- 230000003287 optical effect Effects 0.000 claims description 42
- 230000010287 polarization Effects 0.000 claims description 39
- 230000028161 membrane depolarization Effects 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 16
- 239000012798 spherical particle Substances 0.000 description 28
- 239000004576 sand Substances 0.000 description 12
- 238000004458 analytical method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 235000001630 Pyrus pyrifolia var culta Nutrition 0.000 description 1
- 240000002609 Pyrus pyrifolia var. culta Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
2 偏光センサー部
3 信号解析部
4 検出部
4a 導入管
5 投光部
6 受光部
6a,6b,6c 受光センサー
7 偏光ビームスプリッター
Claims (2)
- 試料空気を検出部に導く導入管と、
前記導入管の出口の試料空気の流れ方向に対して直交方向に偏光させた光を前記検出部に照射する投光部と、
前記投光部から照射された光(以下、「照射光」と称す。)の偏光面内にあり、前記検出部を中心として前記照射光の光軸に対する交角が60〜120°の方向に集光光学系の光軸を有し、前記照射光を前記試料空気中の粒子が横切る際の散乱光を検出する受光部であり、前記散乱光の偏光成分を分離する偏光ビームスプリッターと、前記偏光ビームスプリッターを介さずに前記散乱光を検出する第1の受光センサーと、前記偏光ビームスプリッターを介することによって分離された散乱光の前記照射光の偏光方向に垂直な成分を検出する第2の受光センサーと、前記偏光ビームスプリッターを介することによって分離された散乱光の前記照射光の偏光方向に平行な成分を検出する第3の受光センサーとを有し、前記第2の受光センサーおよび前記第3の受光センサーの集光角が20〜45°である受光部と、
前記第1の受光センサーの信号強度から前記試料空気中の粒子1つずつの粒子径を測定するとともに、前記第2の受光センサーおよび前記第3の受光センサーの信号強度を比較することにより、前記試料空気中の粒子1つずつの偏光解消度を分析して、前記試料空気に含まれる粒径0.5〜10μmの個々の粒子について球形または非球形の別を判定する信号解析部と
を有する粒子測定装置。 - 前記第1の受光センサーは、前記照射光の光軸に対する交角が60°であり、
前記第2の受光センサーおよび前記第3の受光センサーは、前記照射光の光軸に対する交角が120°である
請求項1記載の粒子測定装置。
Priority Applications (1)
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JP2011103666A JP5717136B2 (ja) | 2011-05-06 | 2011-05-06 | 粒子測定装置 |
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JP2011103666A JP5717136B2 (ja) | 2011-05-06 | 2011-05-06 | 粒子測定装置 |
Publications (2)
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JP2012233822A JP2012233822A (ja) | 2012-11-29 |
JP5717136B2 true JP5717136B2 (ja) | 2015-05-13 |
Family
ID=47434264
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JP2011103666A Active JP5717136B2 (ja) | 2011-05-06 | 2011-05-06 | 粒子測定装置 |
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JP (1) | JP5717136B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111537413A (zh) * | 2020-06-09 | 2020-08-14 | 中国科学院大气物理研究所 | 基于单颗粒偏光特性自适应进行沙尘颗粒物定量监测方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109883931B (zh) * | 2019-03-25 | 2020-08-21 | 中兴仪器(深圳)有限公司 | 一种pm2.5在线源解析方法及测量系统 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2653767A (en) * | 1951-05-25 | 1953-09-29 | Tennessee Valley Authority | Oil burner |
US4134679A (en) * | 1976-11-05 | 1979-01-16 | Leeds & Northrup Company | Determining the volume and the volume distribution of suspended small particles |
JPS57170049U (ja) * | 1981-04-22 | 1982-10-26 | ||
NL8601000A (nl) * | 1986-04-21 | 1987-11-16 | Jan Greve T H Twente Afdeling | Het gebruik van gepolariseerd licht in stromingscytometrie. |
JPH0783819A (ja) * | 1993-07-20 | 1995-03-31 | Canon Inc | 粒子測定装置 |
JP2818861B2 (ja) * | 1996-01-25 | 1998-10-30 | 工業技術院長 | 粒子形状等の測定方法及びその装置 |
JP3720799B2 (ja) * | 2002-10-02 | 2005-11-30 | 神栄株式会社 | 花粉センサ |
JP4909288B2 (ja) * | 2008-01-10 | 2012-04-04 | 日本電信電話株式会社 | 浮遊粒子状物質測定装置 |
US8148101B2 (en) * | 2008-07-22 | 2012-04-03 | Abbott Laboratories | Method for classifying and counting bacteria in body fluids |
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2011
- 2011-05-06 JP JP2011103666A patent/JP5717136B2/ja active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111537413A (zh) * | 2020-06-09 | 2020-08-14 | 中国科学院大气物理研究所 | 基于单颗粒偏光特性自适应进行沙尘颗粒物定量监测方法 |
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JP2012233822A (ja) | 2012-11-29 |
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