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GB1005347A - Improvements relating to devices for measurement of solid material in suspension ina liquid - Google Patents

Improvements relating to devices for measurement of solid material in suspension ina liquid

Info

Publication number
GB1005347A
GB1005347A GB1657363A GB1657363A GB1005347A GB 1005347 A GB1005347 A GB 1005347A GB 1657363 A GB1657363 A GB 1657363A GB 1657363 A GB1657363 A GB 1657363A GB 1005347 A GB1005347 A GB 1005347A
Authority
GB
United Kingdom
Prior art keywords
liquid
cell
photo
windows
plunger
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
GB1657363A
Inventor
David Henry Cooper
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.)
BRITISH TRANSP DOCKS BOARD
Original Assignee
BRITISH TRANSP DOCKS BOARD
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 BRITISH TRANSP DOCKS BOARD filed Critical BRITISH TRANSP DOCKS BOARD
Priority to GB1657363A priority Critical patent/GB1005347A/en
Publication of GB1005347A publication Critical patent/GB1005347A/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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path

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)
  • Optical Measuring Cells (AREA)

Abstract

1,005,347. Photo-electric turbidometers. BRITISH TRANSPORT DOCKS BOARD. April 23, 1964 [April 26,1963], No. 16573/63. Heading G1A. [Also in Division A4] A submersible device for measuring the solid material in suspension in the liquid in which it is placed is designed to be left in position for a considerable period. A silt meter for a river or harbour is described in which light from a source in the device is directed across a gap filled with the liquid to a photo-cell so that the transmissivity of the liquid can be determined. Both source and photo-cell must be separated from the cell by windows and these tend to become coated with material deposited from the liquid. According to the invention the device is provided with a window-cleaning element which can be operated by a remote control to clean the windows whilst the device remains submerged. In Fig. 1 the windows are shown at 5 and 6, liquid being allowed to flow between them through apertures 7 and 8. The window-cleaning element consists of a plastic sponge 14 clamped between plates 16 and 17 on rod 15 mounted on a plunger 12 slidable within the body 1 of the device. The body 1 is suspended by a flexible hose 9 through which water may be pumped to cause the plunger and attached sponge to move downwards. Passage of the sponge over the windows can be detected from the photo-cell output and when the plunger reaches the lowest position apertures 27 and 28, past which the clean pumped water flows, lie opposite the source and cell windows so that a zero check can be made. A spring 20 returns the plunger to its normal position when the clean water pressure is reduced. A non-return valve 18 is provided in the bottom of the plunger and sample liquid can be drawn through this and inlet ports 22 up the hose 9. Thus calibration of the device can be done by analyzing samples so withdrawn and comparing the result with the photo-cell current at the time of withdrawal.
GB1657363A 1963-04-26 1963-04-26 Improvements relating to devices for measurement of solid material in suspension ina liquid Expired GB1005347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1657363A GB1005347A (en) 1963-04-26 1963-04-26 Improvements relating to devices for measurement of solid material in suspension ina liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1657363A GB1005347A (en) 1963-04-26 1963-04-26 Improvements relating to devices for measurement of solid material in suspension ina liquid

Publications (1)

Publication Number Publication Date
GB1005347A true GB1005347A (en) 1965-09-22

Family

ID=10079753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1657363A Expired GB1005347A (en) 1963-04-26 1963-04-26 Improvements relating to devices for measurement of solid material in suspension ina liquid

Country Status (1)

Country Link
GB (1) GB1005347A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980838A1 (en) * 2007-04-13 2008-10-15 Horiba, Ltd. Optical cell, optical sample measurement device, and water quality measurement device
CN108438165A (en) * 2018-04-03 2018-08-24 国家海洋技术中心 A kind of anti-halobios adhersion device of sea water conductivity measuring instrument

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980838A1 (en) * 2007-04-13 2008-10-15 Horiba, Ltd. Optical cell, optical sample measurement device, and water quality measurement device
CN108438165A (en) * 2018-04-03 2018-08-24 国家海洋技术中心 A kind of anti-halobios adhersion device of sea water conductivity measuring instrument
CN108438165B (en) * 2018-04-03 2024-03-12 国家海洋技术中心 Marine conductivity measuring apparatu's biological adhesion prevention device

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