GB929919A - Tachometer - Google Patents

Tachometer

Info

Publication number
GB929919A
GB929919A GB3721061A GB3721061A GB929919A GB 929919 A GB929919 A GB 929919A GB 3721061 A GB3721061 A GB 3721061A GB 3721061 A GB3721061 A GB 3721061A GB 929919 A GB929919 A GB 929919A
Authority
GB
United Kingdom
Prior art keywords
speed
pulses
charging
source
oct
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
GB3721061A
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.)
Bendix Corp
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Publication of GB929919A publication Critical patent/GB929919A/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
    • 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
    • G01P3/487—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 delivered by rotating magnets
    • 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
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

929,919. Electric speed indicating system. BENDIX CORPORATION. Oct. 17, 1961 [Oct. 20, 1960], No. 37210/61. Class 40 (1). In a speed measuring device pulses generated in coil 15 (Fig. 3) at a rate proportional to the rotational speed of the device are used to connect a charging source 31 to a condenser 30 by making transistor 24 conductive. A discharge unit 51, 45 is provided for the condenser which discharges completely between charging pulses which are applied via diode 39 and temperature compensating resistor 42. Hence member 40 in series with the charging circuit indicates the average charging current and thus the rotational speed directly. Fig. 1 shows a coil assembly 18 supported in a magneto to produce pulses at a rate proportional to speed. The transistor makes only alternate pulses effective. A voltage regulating Zener diode 36 and resistor 34 are provided for the source 31. A number of each speed measuring devices may be connected to a single voltage source (Fig. 4, not shown).
GB3721061A 1960-10-20 1961-10-17 Tachometer Expired GB929919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6385660A 1960-10-20 1960-10-20

Publications (1)

Publication Number Publication Date
GB929919A true GB929919A (en) 1963-06-26

Family

ID=22051967

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3721061A Expired GB929919A (en) 1960-10-20 1961-10-17 Tachometer

Country Status (2)

Country Link
DE (1) DE1241169B (en)
GB (1) GB929919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037657A1 (en) * 1980-04-04 1981-10-14 Toyota Jidosha Kabushiki Kaisha A rotating speed detecting device of a rotary type electrostatic spray painting device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967200A (en) * 1973-10-26 1976-06-29 Matsushita Electric Industrial Co., Ltd. Speed detector for use with miniature DC motor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071224B (en) * 1959-12-17
US2905890A (en) * 1956-05-17 1959-09-22 Vincent J Getzendanner Surface speed indicator
DE1806762U (en) * 1959-12-07 1960-02-25 Fred P Langheinrich ELECTRONIC IGNITION TACHOMETER.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037657A1 (en) * 1980-04-04 1981-10-14 Toyota Jidosha Kabushiki Kaisha A rotating speed detecting device of a rotary type electrostatic spray painting device

Also Published As

Publication number Publication date
DE1241169B (en) 1967-05-24

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