GB2004393A - Improvements in material processing methods - Google Patents

Improvements in material processing methods

Info

Publication number
GB2004393A
GB2004393A GB7836891A GB7836891A GB2004393A GB 2004393 A GB2004393 A GB 2004393A GB 7836891 A GB7836891 A GB 7836891A GB 7836891 A GB7836891 A GB 7836891A GB 2004393 A GB2004393 A GB 2004393A
Authority
GB
United Kingdom
Prior art keywords
moisture content
selected number
sample
material processing
processing methods
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
GB7836891A
Other versions
GB2004393B (en
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.)
Venture Measurement Co LLC
Original Assignee
Bindicator Co LLC
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 Bindicator Co LLC filed Critical Bindicator Co LLC
Publication of GB2004393A publication Critical patent/GB2004393A/en
Application granted granted Critical
Publication of GB2004393B publication Critical patent/GB2004393B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B21/00—Systems involving sampling of the variable controlled
    • G05B21/02—Systems involving sampling of the variable controlled electric
    • 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
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/04—Dairy products
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D22/00—Control of humidity
    • G05D22/02—Control of humidity characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Pathology (AREA)
  • Automation & Control Theory (AREA)
  • Medicinal Chemistry (AREA)
  • Drying Of Solid Materials (AREA)
  • Dairy Products (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

In a process for monitoring and/or controlling the moisture content of a material 64, such as powdered milk, falling from a chute of a material processor (46, Fig. 1 not shown) onto a window 58 on a sight tube 60, the moisture content of a selected number of samples of the processed material is measured by an apparatus employing an infra red source and a filter wheel 88 containing two interference filters 87. An air nozzle 66 connected to a air source removes each sample. A running average value 10 over the selected number of the most recent sample moisture content measurements is used to control a drier unit 20 of the material processor (Fig. 1 not shown) and to supply an analogue indicator 110, a digital indicator 108 and a tape printer 111. <IMAGE>
GB7836891A 1977-09-15 1978-09-14 Material processing methods Expired GB2004393B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83356377A 1977-09-15 1977-09-15

Publications (2)

Publication Number Publication Date
GB2004393A true GB2004393A (en) 1979-03-28
GB2004393B GB2004393B (en) 1982-03-17

Family

ID=25264760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7836891A Expired GB2004393B (en) 1977-09-15 1978-09-14 Material processing methods

Country Status (5)

Country Link
AU (1) AU522795B2 (en)
CA (1) CA1113175A (en)
DE (1) DE2839750A1 (en)
FR (1) FR2403558A1 (en)
GB (1) GB2004393B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199536A2 (en) * 1985-04-18 1986-10-29 Deere & Company Vehicle accessory control method and system
AU634013B2 (en) * 1990-01-16 1993-02-11 Unilever Plc Computer-controlled spray-drying process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922670C2 (en) * 1989-04-10 1993-10-14 Milchwirtschaftliche Foerderun Quality assurance procedures for milk or milk products

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117261A (en) * 1956-12-31 1964-01-07 Brucker-Steinkuhl Kurt Production control system
GB1176135A (en) * 1966-03-11 1970-01-01 Nat Res Dev Improvements in or relating to Control Apparatus for a Drying Plant
FR1527189A (en) * 1967-04-20 1968-05-31 Further development of a process for the production of dairy powders with secondary drying
GB1318871A (en) * 1969-03-14 1973-05-31 Kodak Ltd Process control system
US3984665A (en) * 1975-06-04 1976-10-05 Phillips Petroleum Company Process controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199536A2 (en) * 1985-04-18 1986-10-29 Deere & Company Vehicle accessory control method and system
EP0199536A3 (en) * 1985-04-18 1987-10-07 Deere & Company Vehicle accessory control method and system
AU634013B2 (en) * 1990-01-16 1993-02-11 Unilever Plc Computer-controlled spray-drying process

Also Published As

Publication number Publication date
AU3981378A (en) 1980-03-20
DE2839750A1 (en) 1979-03-29
FR2403558B1 (en) 1983-04-01
CA1113175A (en) 1981-11-24
AU522795B2 (en) 1982-06-24
GB2004393B (en) 1982-03-17
FR2403558A1 (en) 1979-04-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee