JPH0426422B2 - - Google Patents

Info

Publication number
JPH0426422B2
JPH0426422B2 JP59163201A JP16320184A JPH0426422B2 JP H0426422 B2 JPH0426422 B2 JP H0426422B2 JP 59163201 A JP59163201 A JP 59163201A JP 16320184 A JP16320184 A JP 16320184A JP H0426422 B2 JPH0426422 B2 JP H0426422B2
Authority
JP
Japan
Prior art keywords
filter
light
measured
compensation
dirt
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.)
Expired - Lifetime
Application number
JP59163201A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6140545A (ja
Inventor
Kunyoshi Kojima
Hideo Koide
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.)
Hitachi Ltd
Original Assignee
Hitachi Plant Engineering and Construction Co Ltd
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 Hitachi Plant Engineering and Construction Co Ltd filed Critical Hitachi Plant Engineering and Construction Co Ltd
Priority to JP16320184A priority Critical patent/JPS6140545A/ja
Publication of JPS6140545A publication Critical patent/JPS6140545A/ja
Publication of JPH0426422B2 publication Critical patent/JPH0426422B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • 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
    • G01N15/06—Investigating concentration of particle suspensions
    • G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
    • G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (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 Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
JP16320184A 1984-07-31 1984-07-31 エヤフイルタ汚れ検出装置 Granted JPS6140545A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16320184A JPS6140545A (ja) 1984-07-31 1984-07-31 エヤフイルタ汚れ検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16320184A JPS6140545A (ja) 1984-07-31 1984-07-31 エヤフイルタ汚れ検出装置

Publications (2)

Publication Number Publication Date
JPS6140545A JPS6140545A (ja) 1986-02-26
JPH0426422B2 true JPH0426422B2 (enrdf_load_stackoverflow) 1992-05-07

Family

ID=15769200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16320184A Granted JPS6140545A (ja) 1984-07-31 1984-07-31 エヤフイルタ汚れ検出装置

Country Status (1)

Country Link
JP (1) JPS6140545A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02253141A (ja) * 1989-03-27 1990-10-11 Matsushita Electric Works Ltd 空気清浄器の除塵フィルタの汚れ度検出装置
CN104422641A (zh) * 2013-09-02 2015-03-18 张卿 气体颗粒物测量仪

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126081A (ja) * 1974-08-28 1976-03-03 Omron Tateisi Electronics Co Dakudokei
JPS5531902A (en) * 1978-08-29 1980-03-06 Shigeru Tsubono Measuring unit for floor dirt

Also Published As

Publication number Publication date
JPS6140545A (ja) 1986-02-26

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