IT994770B - Apparecchio per il controllo della velocita di alberi - Google Patents

Apparecchio per il controllo della velocita di alberi

Info

Publication number
IT994770B
IT994770B IT5296273A IT5296273A IT994770B IT 994770 B IT994770 B IT 994770B IT 5296273 A IT5296273 A IT 5296273A IT 5296273 A IT5296273 A IT 5296273A IT 994770 B IT994770 B IT 994770B
Authority
IT
Italy
Prior art keywords
trees
speed
control
Prior art date
Application number
IT5296273A
Other languages
English (en)
Original Assignee
Honeywell Inc
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
Priority claimed from US00297553A external-priority patent/US3808407A/en
Application filed by Honeywell Inc filed Critical Honeywell Inc
Application granted granted Critical
Publication of IT994770B publication Critical patent/IT994770B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
    • G01P3/60—Devices characterised by the use of electric or magnetic means for comparing two speeds by measuring or comparing frequency of generated currents or voltages
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/489—Digital circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
IT5296273A 1972-10-13 1973-10-05 Apparecchio per il controllo della velocita di alberi IT994770B (it)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US29756872A 1972-10-13 1972-10-13
US00297553A US3808407A (en) 1972-10-13 1972-10-13 Pulse difference counter
US29814772A 1972-10-16 1972-10-16
US29803872A 1972-10-16 1972-10-16

Publications (1)

Publication Number Publication Date
IT994770B true IT994770B (it) 1975-10-20

Family

ID=27501710

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5296273A IT994770B (it) 1972-10-13 1973-10-05 Apparecchio per il controllo della velocita di alberi

Country Status (3)

Country Link
DE (1) DE2350082A1 (it)
FR (1) FR2203075A1 (it)
IT (1) IT994770B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2533637C3 (de) * 1975-07-28 1981-08-27 Sperry Corp., 10019 New York, N.Y. Schaltungsanordnung zur Überwachung eines Bereiches von durch einen umlaufenden Köaper (Magnetscheibe oder -trommel) einzuhaltenden Drehzahlen
FR2321129A1 (fr) * 1975-08-13 1977-03-11 Sperry Rand Corp Appareil de controle de vitesse

Also Published As

Publication number Publication date
FR2203075A1 (en) 1974-05-10
FR2203075B3 (it) 1976-09-03
DE2350082A1 (de) 1974-05-02

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