GB981564A - Improvements in or relating to devices for the electrical control of the components of mixtures - Google Patents

Improvements in or relating to devices for the electrical control of the components of mixtures

Info

Publication number
GB981564A
GB981564A GB345962A GB345962A GB981564A GB 981564 A GB981564 A GB 981564A GB 345962 A GB345962 A GB 345962A GB 345962 A GB345962 A GB 345962A GB 981564 A GB981564 A GB 981564A
Authority
GB
United Kingdom
Prior art keywords
flow
pulses
mixture
devices
ring counter
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
GB345962A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB981564A publication Critical patent/GB981564A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
    • G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components

Abstract

981,564. Mixing flowing liquids in proportions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES. Jan. 30, 1962 [Feb. 2, 1961], No. 3459/62. Heading B1C. [Also in Division G3] The flow of constituents of a mixture is kept constant by a digital control circuit in which may be set independently both the proportion of each constituent and the total flow of the mixture. Pulses representing actual flow of each constituent A, B, C are compared numerically in devices 24, 28, 30 with reference pulses, the number of which is determined by the setting of selector switches (16, 17, 18 for A) in parallel outputs of a common ring counter 10, 11, 12, and the resultant used to adjust flow regulating valves. The reference pulses are derived from a constant frequency pulse generator 1 connected to an auxiliary counter 2, in the output of which is a selector switch 4 whose setting determines how many pulses in each counting cycle are passed to the ring counter 10, 11, 12 by "and" gates 3 and 9; hence the total flow of mixture is controlled as a percentage of the total possible, which corresponds to all the pulses being passed to the ring counter. The adjustment to the flow is made at the end of each counting cycle, and the start of the next cycle is delayed for this to be effected. It is stated that the counters may comprise bistable circuits having transistors, valves or gasdischarge tubes, and each is associated with a decoding matrix comprising diodes. In an alternative arrangement the selector switches are replaced by punched card setting devices.
GB345962A 1961-02-02 1962-01-30 Improvements in or relating to devices for the electrical control of the components of mixtures Expired GB981564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP26504A DE1148389B (en) 1961-02-02 1961-02-02 Device for finely-stepped setpoint adjustment of the mixed components in a digital mixing control

Publications (1)

Publication Number Publication Date
GB981564A true GB981564A (en) 1965-01-27

Family

ID=7370478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB345962A Expired GB981564A (en) 1961-02-02 1962-01-30 Improvements in or relating to devices for the electrical control of the components of mixtures

Country Status (4)

Country Link
CH (1) CH411378A (en)
DE (1) DE1148389B (en)
DK (1) DK109568C (en)
GB (1) GB981564A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269327A (en) * 1992-08-07 1994-02-09 Graco Inc Method for dispensing fluid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831856B2 (en) * 1978-07-20 1981-07-02 Drägerwerk AG, 2400 Lübeck Arrangement for electrically controlled dosing and mixing of gases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269327A (en) * 1992-08-07 1994-02-09 Graco Inc Method for dispensing fluid
FR2694507A1 (en) * 1992-08-07 1994-02-11 Graco Inc Method for determining a fluid having at least two constituents
GB2269327B (en) * 1992-08-07 1995-12-20 Graco Inc Method for metering fluid

Also Published As

Publication number Publication date
CH411378A (en) 1966-04-15
DK109568C (en) 1968-05-13
DE1148389B (en) 1963-05-09

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