GB1395075A - Position encoders - Google Patents

Position encoders

Info

Publication number
GB1395075A
GB1395075A GB4167872A GB4167872A GB1395075A GB 1395075 A GB1395075 A GB 1395075A GB 4167872 A GB4167872 A GB 4167872A GB 4167872 A GB4167872 A GB 4167872A GB 1395075 A GB1395075 A GB 1395075A
Authority
GB
United Kingdom
Prior art keywords
switches
movable member
discrete
sept
linear
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
GB4167872A
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.)
Jones R J P
Original Assignee
Jones R J P
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 Jones R J P filed Critical Jones R J P
Priority to GB4167872A priority Critical patent/GB1395075A/en
Publication of GB1395075A publication Critical patent/GB1395075A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/25—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval

Abstract

1395075 Position encoders R J P JONES 10 Sept 1973 [8 Sept 1972] 41678/72 Heading G4H The position of a linear or angularly movable member is digitized using a linear or circular array of e.g. 16 switches, preferably magnetic reed switches, and a switch actuating member, e.g. a permanent magnet, coupled for movement with the first member, the outputs of the switches being connected to a diode matrix adapted to produce a 4-bit Gray coded word indicative of each discrete position of the movable member. In a first embodiment, 16 coded outputs may be produced from 16 switches equispaced in a circle excepting a gap equivalent to two switches around the reference position of the member, discrete positions being defined as those points mid-way between two switches, these two switches both being closed when the member is in the discrete position. In a second embodiment, 16 words are derived from 11 switches which are unequally spaced, some being more sensitive and at a slightly smaller distance from the axis of rotation of the actuating member. The movable member is preferably either a liquid level sensing float or a weather or current vane.
GB4167872A 1972-09-08 1972-09-08 Position encoders Expired GB1395075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4167872A GB1395075A (en) 1972-09-08 1972-09-08 Position encoders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4167872A GB1395075A (en) 1972-09-08 1972-09-08 Position encoders

Publications (1)

Publication Number Publication Date
GB1395075A true GB1395075A (en) 1975-05-21

Family

ID=10420823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4167872A Expired GB1395075A (en) 1972-09-08 1972-09-08 Position encoders

Country Status (1)

Country Link
GB (1) GB1395075A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059377A2 (en) * 1981-02-21 1982-09-08 E.G.O. Elektro-Geräte Blanc u. Fischer Device for applying information
WO1983002823A1 (en) * 1982-02-16 1983-08-18 Redmer, Rudi Digital apparatus for length measurement
EP2910951A1 (en) * 2014-02-19 2015-08-26 Rosemount Aerospace Inc. Vane device for a dynamic flow angle measurement
DE102014006276A1 (en) 2014-05-02 2015-11-05 Meas Deutschland Gmbh Measuring device and method for measuring the level of a liquid in a container

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059377A2 (en) * 1981-02-21 1982-09-08 E.G.O. Elektro-Geräte Blanc u. Fischer Device for applying information
EP0059377A3 (en) * 1981-02-21 1984-10-10 E.G.O. Elektro-Geräte Blanc u. Fischer Device for applying information
WO1983002823A1 (en) * 1982-02-16 1983-08-18 Redmer, Rudi Digital apparatus for length measurement
EP2910951A1 (en) * 2014-02-19 2015-08-26 Rosemount Aerospace Inc. Vane device for a dynamic flow angle measurement
US9239338B2 (en) 2014-02-19 2016-01-19 Rosemount Aerospace Inc. Vane device for a dynamic flow angle measurement
DE102014006276A1 (en) 2014-05-02 2015-11-05 Meas Deutschland Gmbh Measuring device and method for measuring the level of a liquid in a container
WO2015165593A1 (en) 2014-05-02 2015-11-05 Meas Deutschland Gmbh Measuring device and method for measuring the level of a liquid in a container
US10656004B2 (en) 2014-05-02 2020-05-19 TE Connectivity Sensors Germany GmbH Measuring device and method for measuring the level of a liquid in a container

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930909