JPS57211529A - Turbidity meter - Google Patents

Turbidity meter

Info

Publication number
JPS57211529A
JPS57211529A JP9692481A JP9692481A JPS57211529A JP S57211529 A JPS57211529 A JP S57211529A JP 9692481 A JP9692481 A JP 9692481A JP 9692481 A JP9692481 A JP 9692481A JP S57211529 A JPS57211529 A JP S57211529A
Authority
JP
Japan
Prior art keywords
output
light
circuit
alternating
visible
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.)
Granted
Application number
JP9692481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6218860B2 (enrdf_load_stackoverflow
Inventor
Shotaro Urushibara
Akira Kumada
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP9692481A priority Critical patent/JPS57211529A/ja
Publication of JPS57211529A publication Critical patent/JPS57211529A/ja
Publication of JPS6218860B2 publication Critical patent/JPS6218860B2/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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP9692481A 1981-06-23 1981-06-23 Turbidity meter Granted JPS57211529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9692481A JPS57211529A (en) 1981-06-23 1981-06-23 Turbidity meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9692481A JPS57211529A (en) 1981-06-23 1981-06-23 Turbidity meter

Publications (2)

Publication Number Publication Date
JPS57211529A true JPS57211529A (en) 1982-12-25
JPS6218860B2 JPS6218860B2 (enrdf_load_stackoverflow) 1987-04-24

Family

ID=14177895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9692481A Granted JPS57211529A (en) 1981-06-23 1981-06-23 Turbidity meter

Country Status (1)

Country Link
JP (1) JPS57211529A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006300858A (ja) * 2005-04-25 2006-11-02 Toshiba Corp 水質検査装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463891A (en) * 1977-10-31 1979-05-23 Meidensha Electric Mfg Co Ltd Optical type concentration meter of suspended matter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463891A (en) * 1977-10-31 1979-05-23 Meidensha Electric Mfg Co Ltd Optical type concentration meter of suspended matter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006300858A (ja) * 2005-04-25 2006-11-02 Toshiba Corp 水質検査装置

Also Published As

Publication number Publication date
JPS6218860B2 (enrdf_load_stackoverflow) 1987-04-24

Similar Documents

Publication Publication Date Title
JPS55156840A (en) Specimen detector
JPS57161708A (en) Focusing detector having variable visual field of detection
JPS56130608A (en) Range finding system
JPS5532038A (en) Distance detector
JPS57211529A (en) Turbidity meter
JPS55124003A (en) Reflection type photoelectric switch
JPS57151807A (en) Distance measuring device
JPS52145249A (en) Object detecting apparatus
JPS5437794A (en) Infrared ray detector
JPS571906A (en) Discriminator for surface and reverse side of article
JPS5462879A (en) Optical temperature detector
JPS5530632A (en) Spectroscopic photmeter of variable reception type
RU2010161C1 (ru) Фотоэлектрический преобразователь для определения метки на диске индукционного электросчетчика
JPS57171279A (en) Photoelectric pluviometer
JPS5619439A (en) Photoelectric smoke detector
JPS5752867A (en) Voltage detecting circuit
JPS5690227A (en) Optical fiber temperature detector
JPS57116310A (en) Focus detecting system
JPS5526467A (en) Color difference measuring unit
JPS5676666A (en) Detection circuit for call-out signal
JPS5299842A (en) Measurement of wavelength dispersion
JPS5511606A (en) Photoelectric conversion device
JPS5478943A (en) Detection circuit of tri-state output
JPS57182112A (en) Range detector
SU1357714A1 (ru) Устройство дл оптико-электронной дефектоскопии