GB1402817A - Transducer for servomechanisms - Google Patents

Transducer for servomechanisms

Info

Publication number
GB1402817A
GB1402817A GB4495773A GB4495773A GB1402817A GB 1402817 A GB1402817 A GB 1402817A GB 4495773 A GB4495773 A GB 4495773A GB 4495773 A GB4495773 A GB 4495773A GB 1402817 A GB1402817 A GB 1402817A
Authority
GB
United Kingdom
Prior art keywords
output
lift
floor
plates
maximum
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
GB4495773A
Other languages
English (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.)
Elevators Pty Ltd
Original Assignee
Elevators Pty 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 Elevators Pty Ltd filed Critical Elevators Pty Ltd
Publication of GB1402817A publication Critical patent/GB1402817A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01D5/14—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 influencing the magnitude of a current or voltage
    • G01D5/20—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 influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—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 influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/225—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 influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the mutual induction between the two coils
    • G01D5/2258—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 influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the mutual induction between the two coils by a movable ferromagnetic element, e.g. core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
    • 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
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles
    • G01D2205/775—Tapered profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Elevator Control (AREA)
  • Control Of Position Or Direction (AREA)
  • Elevator Door Apparatuses (AREA)
GB4495773A 1973-02-21 1973-09-25 Transducer for servomechanisms Expired GB1402817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU235473 1973-02-21

Publications (1)

Publication Number Publication Date
GB1402817A true GB1402817A (en) 1975-08-13

Family

ID=3692863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4495773A Expired GB1402817A (en) 1973-02-21 1973-09-25 Transducer for servomechanisms

Country Status (5)

Country Link
US (1) US3983961A (enExample)
JP (1) JPS49113984A (enExample)
AU (1) AU470136B2 (enExample)
CA (1) CA1021433A (enExample)
GB (1) GB1402817A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164444A (en) * 1984-09-15 1986-03-19 Lamb Sceptre Ltd Position monitoring apparatus

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083430A (en) * 1976-09-29 1978-04-11 Dover Corporation (Canada) Limited Apparatus for determining the location of an elevator car or similar vehicle
JPS598625B2 (ja) * 1977-03-31 1984-02-25 三菱電機株式会社 エレベ−タの着床時制御装置
US4304319A (en) * 1979-10-30 1981-12-08 The United States Of America As Represented By The Secretary Of The Navy Automatic elevator control system
US4570755A (en) * 1983-06-27 1986-02-18 Armor Electric Company, Inc. Digital landing computer for elevator
JPH05338949A (ja) * 1992-06-04 1993-12-21 Mitsubishi Electric Corp かご位置検出装置
US5831227A (en) * 1996-12-13 1998-11-03 Otis Elevator Company Differential magnetic alignment of an elevator and a landing
JP4177076B2 (ja) * 2002-10-24 2008-11-05 三菱電機株式会社 エレベータのかご位置検出装置
CN103274275B (zh) * 2013-04-26 2015-03-18 江南嘉捷电梯股份有限公司 一种防止电梯轿厢非故意移动装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210695A (en) * 1939-04-13 1940-08-06 Westinghouse Electric & Mfg Co Elevator control system
US3207265A (en) * 1961-12-27 1965-09-21 Westinghouse Electric Corp Elevator control system
JPS4215159Y1 (enExample) * 1964-12-21 1967-08-30
US3749203A (en) * 1971-08-11 1973-07-31 Us Elevator Corp Elevator floor leveling system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164444A (en) * 1984-09-15 1986-03-19 Lamb Sceptre Ltd Position monitoring apparatus

Also Published As

Publication number Publication date
JPS49113984A (enExample) 1974-10-30
AU6067973A (en) 1975-03-27
US3983961A (en) 1976-10-05
AU470136B2 (en) 1976-03-04
CA1021433A (en) 1977-11-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees