AU7113081A - Digital positioner - Google Patents

Digital positioner

Info

Publication number
AU7113081A
AU7113081A AU71130/81A AU7113081A AU7113081A AU 7113081 A AU7113081 A AU 7113081A AU 71130/81 A AU71130/81 A AU 71130/81A AU 7113081 A AU7113081 A AU 7113081A AU 7113081 A AU7113081 A AU 7113081A
Authority
AU
Australia
Prior art keywords
digital positioner
positioner
digital
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.)
Abandoned
Application number
AU71130/81A
Inventor
Bruce Michael Cox
Dale Edward Wheeler
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.)
Halliburton Co
Original Assignee
Halliburton Co
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 Halliburton Co filed Critical Halliburton Co
Publication of AU7113081A publication Critical patent/AU7113081A/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • F15B11/125—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes
AU71130/81A 1980-06-02 1981-05-28 Digital positioner Abandoned AU7113081A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15570780A 1980-06-02 1980-06-02
US155707 2002-05-22

Publications (1)

Publication Number Publication Date
AU7113081A true AU7113081A (en) 1981-12-10

Family

ID=22556478

Family Applications (1)

Application Number Title Priority Date Filing Date
AU71130/81A Abandoned AU7113081A (en) 1980-06-02 1981-05-28 Digital positioner

Country Status (7)

Country Link
AU (1) AU7113081A (en)
BR (1) BR8103390A (en)
DE (1) DE3121128A1 (en)
GB (1) GB2077856A (en)
IT (1) IT1137172B (en)
NL (1) NL8102627A (en)
NO (1) NO811849L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125326A (en) * 1991-01-29 1992-06-30 Rockwell International Corporation Three position actuator having a neutral normal position for shifting a two speed transfer case
US5165322A (en) * 1992-06-22 1992-11-24 The United States Of America As Represented By The Secretary Of The Navy Three position power cylinder
CN100449158C (en) * 2006-10-27 2009-01-07 成都电子机械高等专科学校 Ratio-variable feedback type digital fluid cylinder
ES2364995B1 (en) * 2008-12-23 2012-08-06 Universidad De Zaragoza HYDRAULIC CYLINDER
DE102011005680A1 (en) * 2011-03-17 2012-10-04 Zf Friedrichshafen Ag Switching cylinder arrangement

Also Published As

Publication number Publication date
IT8122042A0 (en) 1981-05-29
BR8103390A (en) 1982-02-16
DE3121128A1 (en) 1982-04-01
NO811849L (en) 1981-12-03
NL8102627A (en) 1982-01-04
GB2077856A (en) 1981-12-23
IT1137172B (en) 1986-09-03

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