GB322461A - Improved method of and apparatus for measuring the turbidity of liquids - Google Patents

Improved method of and apparatus for measuring the turbidity of liquids

Info

Publication number
GB322461A
GB322461A GB2538928A GB2538928A GB322461A GB 322461 A GB322461 A GB 322461A GB 2538928 A GB2538928 A GB 2538928A GB 2538928 A GB2538928 A GB 2538928A GB 322461 A GB322461 A GB 322461A
Authority
GB
United Kingdom
Prior art keywords
turbidity
liquid
casing
images
estimated
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
Application number
GB2538928A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2538928A priority Critical patent/GB322461A/en
Priority to DEP61641D priority patent/DE535298C/en
Publication of GB322461A publication Critical patent/GB322461A/en
Expired 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/29—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)

Abstract

322,461. Paterson, W., (Middendorp, D. J.). Sept. 4, 1928. Turbidometers.-The turbidity of a liquid is estimated by causing a beam of light to be projected through the liquid along an extended path and observing the distance to which it penetrates. The apparatus comprises a casing a containing the liquid and having opposite walls provided with reflectors b, c inclined at a small angle to each other. Light from a source. e enters the casing through a transparent area d of the mirror b and passes to and from in a zig-zag path so that each reflectors forms a number of images of the source e. The images in the reflector b are observed through a transparent area d<1> at the same level as the area d but displaced laterally therefrom, and the turbidity of the liquid is estimated by the number of images which can be seen. To enable a numerical value of the turbidity to be obtained a slidable diaphragm plate f may be provided which is moved until it appears to intersect the last visible image. This plate is provided with an external pointer moving over a scale g on the casing.
GB2538928A 1928-09-04 1928-09-04 Improved method of and apparatus for measuring the turbidity of liquids Expired GB322461A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2538928A GB322461A (en) 1928-09-04 1928-09-04 Improved method of and apparatus for measuring the turbidity of liquids
DEP61641D DE535298C (en) 1928-09-04 1929-11-13 Method and device for measuring the turbidity of liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2538928A GB322461A (en) 1928-09-04 1928-09-04 Improved method of and apparatus for measuring the turbidity of liquids

Publications (1)

Publication Number Publication Date
GB322461A true GB322461A (en) 1929-12-04

Family

ID=10226882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2538928A Expired GB322461A (en) 1928-09-04 1928-09-04 Improved method of and apparatus for measuring the turbidity of liquids

Country Status (1)

Country Link
GB (1) GB322461A (en)

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