GB1483394A - Electronic tachometers - Google Patents

Electronic tachometers

Info

Publication number
GB1483394A
GB1483394A GB5508/75A GB550875A GB1483394A GB 1483394 A GB1483394 A GB 1483394A GB 5508/75 A GB5508/75 A GB 5508/75A GB 550875 A GB550875 A GB 550875A GB 1483394 A GB1483394 A GB 1483394A
Authority
GB
United Kingdom
Prior art keywords
signals
velocity
generating
generated
portions
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
GB5508/75A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1483394A publication Critical patent/GB1483394A/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
    • 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
    • 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
    • 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
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Optical Transform (AREA)
  • Measuring Phase Differences (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
GB5508/75A 1974-04-10 1975-02-10 Electronic tachometers Expired GB1483394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US459762A US3902116A (en) 1974-04-10 1974-04-10 Quadrature electronic tachometer

Publications (1)

Publication Number Publication Date
GB1483394A true GB1483394A (en) 1977-08-17

Family

ID=23826050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5508/75A Expired GB1483394A (en) 1974-04-10 1975-02-10 Electronic tachometers

Country Status (5)

Country Link
US (1) US3902116A (US06521211-20030218-C00004.png)
JP (1) JPS50137582A (US06521211-20030218-C00004.png)
DE (1) DE2513688A1 (US06521211-20030218-C00004.png)
FR (1) FR2267552B1 (US06521211-20030218-C00004.png)
GB (1) GB1483394A (US06521211-20030218-C00004.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001594A1 (en) * 1980-10-30 1982-05-13 Kawada Shigeki Rotational speed sensing system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53164185U (US06521211-20030218-C00004.png) * 1977-05-31 1978-12-22
JPS57175259A (en) * 1981-04-22 1982-10-28 Fanuc Ltd Speed detector
DE3147145C2 (de) * 1981-11-27 1983-10-13 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Erzeugung einer drehzahlproportionalen Spannung und Schaltungsanordnung zur Durchführung des Verfahrens
DK149255C (da) * 1983-11-25 1987-03-09 Ole Ploug Apparat til maaling af fortrinsvis roterende legemers hastighed

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406336A (en) * 1966-06-22 1968-10-15 Nasa Usa Rc rate generator for slow speed measurement
US3579268A (en) * 1968-07-09 1971-05-18 Ampex Automatic quadrature and amplitude stabilizer
US3710265A (en) * 1971-04-01 1973-01-09 Howe Richardson Scale Co Quadrature-to-serial pulse converter
US3813597A (en) * 1973-01-05 1974-05-28 East Bay Municipal Utility Dis Tachometer for low speed measurement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001594A1 (en) * 1980-10-30 1982-05-13 Kawada Shigeki Rotational speed sensing system

Also Published As

Publication number Publication date
JPS50137582A (US06521211-20030218-C00004.png) 1975-10-31
FR2267552B1 (US06521211-20030218-C00004.png) 1977-04-15
DE2513688A1 (de) 1975-10-23
FR2267552A1 (US06521211-20030218-C00004.png) 1975-11-07
US3902116A (en) 1975-08-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee