IT1077281B - Trasduttore digitale della velocita' di rotazione di un albero rotante a velocita' variabile - Google Patents

Trasduttore digitale della velocita' di rotazione di un albero rotante a velocita' variabile

Info

Publication number
IT1077281B
IT1077281B IT21309/77A IT2130977A IT1077281B IT 1077281 B IT1077281 B IT 1077281B IT 21309/77 A IT21309/77 A IT 21309/77A IT 2130977 A IT2130977 A IT 2130977A IT 1077281 B IT1077281 B IT 1077281B
Authority
IT
Italy
Prior art keywords
rotary shaft
digital transducer
speed
rotation speed
variable speed
Prior art date
Application number
IT21309/77A
Other languages
English (en)
Original Assignee
Alfa Romeo Spa
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 Alfa Romeo Spa filed Critical Alfa Romeo Spa
Priority to IT21309/77A priority Critical patent/IT1077281B/it
Priority to DE19782807135 priority patent/DE2807135A1/de
Priority to GB6891/78A priority patent/GB1596605A/en
Priority to FR7806119A priority patent/FR2384264A1/fr
Priority to JP2836378A priority patent/JPS53116185A/ja
Priority to US05/886,438 priority patent/US4229695A/en
Application granted granted Critical
Publication of IT1077281B publication Critical patent/IT1077281B/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
    • G01P3/44—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
    • F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
    • F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
    • F16H2015/383—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces with two or more sets of toroid gearings arranged in parallel

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Feedback Control In General (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
IT21309/77A 1977-03-16 1977-03-16 Trasduttore digitale della velocita' di rotazione di un albero rotante a velocita' variabile IT1077281B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT21309/77A IT1077281B (it) 1977-03-16 1977-03-16 Trasduttore digitale della velocita' di rotazione di un albero rotante a velocita' variabile
DE19782807135 DE2807135A1 (de) 1977-03-16 1978-02-20 Digitalwandler der drehzahl einer mit veraenderlicher geschwindigkeit umlaufenden welle
GB6891/78A GB1596605A (en) 1977-03-16 1978-02-21 Digital transducer for transducing the rotation speed of a shaft rotated at a variable speed
FR7806119A FR2384264A1 (fr) 1977-03-16 1978-03-03 Capteur numerique de vitesse de rotation pour arbre tournant a vitesse variable
JP2836378A JPS53116185A (en) 1977-03-16 1978-03-14 Digital converter so as to converting rotation speed of axle rdtating lnder changable speed
US05/886,438 US4229695A (en) 1977-03-16 1978-03-14 Rotational speed transducer having greater low speed discrimination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21309/77A IT1077281B (it) 1977-03-16 1977-03-16 Trasduttore digitale della velocita' di rotazione di un albero rotante a velocita' variabile

Publications (1)

Publication Number Publication Date
IT1077281B true IT1077281B (it) 1985-05-04

Family

ID=11179880

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21309/77A IT1077281B (it) 1977-03-16 1977-03-16 Trasduttore digitale della velocita' di rotazione di un albero rotante a velocita' variabile

Country Status (6)

Country Link
US (1) US4229695A (it)
JP (1) JPS53116185A (it)
DE (1) DE2807135A1 (it)
FR (1) FR2384264A1 (it)
GB (1) GB1596605A (it)
IT (1) IT1077281B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1098674B (it) * 1978-08-09 1985-09-07 Alfa Romeo Spa Dispositivo elettronico per il rilievo della velocita' di un organo rotante
US4321901A (en) * 1979-08-03 1982-03-30 Jidosha Denki Kogyo Kabushiki Kaisha Automatic speed control device
US4420814A (en) * 1980-06-27 1983-12-13 Nippon Air Brake Co., Ltd. Wheel speed measuring circuit
JPS60131465A (ja) * 1983-12-20 1985-07-13 Mitsubishi Electric Corp 回転速度検出装置
JPS6281570A (ja) * 1985-10-04 1987-04-15 Mitsubishi Electric Corp 速度検出装置
DE3641538A1 (de) * 1986-12-05 1988-06-09 Heidelberger Druckmasch Ag Einrichtung zum erfassen der drehzahl eines buerstenlosen gleichstrommotors
US4937530A (en) * 1988-07-19 1990-06-26 Siemens Aktiengesellschaft Apparatus for monitoring phase voltages of a polyphase tachometer generator to detect phase failures
US5221250A (en) * 1991-01-07 1993-06-22 Beckman Instruments, Inc. Coding of maximum operating speed on centrifuge rotors and detection thereof
JP3592436B2 (ja) * 1996-05-02 2004-11-24 パイオニア株式会社 移動距離導出方法及び装置
US6073087A (en) * 1996-11-20 2000-06-06 Philips Electronics North America Corporation Digital tachometer
SE519035C2 (sv) * 2000-11-09 2002-12-23 Flow Holdings Sagl Högtryckspress innefattande en flytande kolv, användning av samt förfarande för drift av en sådan press
WO2006044799A2 (en) * 2004-10-18 2006-04-27 Tyco Healthcare Group, Lp Extraluminal sealant applicator and method
US20100131232A1 (en) * 2008-11-21 2010-05-27 Taylor Timothy M Belt slip meter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3553728A (en) * 1968-05-20 1971-01-05 Gen Radio Co Frequency measuring apparatus with automatic adjustment of measurement interval for enhanced speed and accuracy
CH532256A (de) * 1971-05-03 1972-12-31 Heberlein & Co Ag Verfahren und Vorrichtung zur Messung der Frequenz elektrischer Impulse
CH549804A (de) * 1973-02-14 1974-05-31 Contelec Sa Vorrichtung zum voruebergehenden speichern von fahrzeuggeschwindigkeiten und betriebszustaenden.
DE2353038A1 (de) * 1973-10-23 1975-04-30 Teldix Gmbh Verfahren und anordnung zur messung der impulsfolgefrequenz einer impulsfolge
DE2635004B2 (de) * 1976-08-04 1978-09-28 Wabco Westinghouse Gmbh, 3000 Hannover Verfahren und Schaltungsanordnung zur digitalen Messung der Rotationsgeschwindigkeit
US4093916A (en) * 1976-10-04 1978-06-06 Summer Steven E Digital tachometer

Also Published As

Publication number Publication date
US4229695A (en) 1980-10-21
JPS619587B2 (it) 1986-03-25
FR2384264A1 (fr) 1978-10-13
JPS53116185A (en) 1978-10-11
FR2384264B1 (it) 1982-12-10
GB1596605A (en) 1981-08-26
DE2807135C2 (it) 1988-01-21
DE2807135A1 (de) 1978-09-28

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