GB104506A - Improvements in Electric Speed Indicators. - Google Patents

Improvements in Electric Speed Indicators.

Info

Publication number
GB104506A
GB104506A GB2219/17A GB221917A GB104506A GB 104506 A GB104506 A GB 104506A GB 2219/17 A GB2219/17 A GB 2219/17A GB 221917 A GB221917 A GB 221917A GB 104506 A GB104506 A GB 104506A
Authority
GB
United Kingdom
Prior art keywords
speed
ammeter
condenser
circuit
current
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 - Lifetime
Application number
GB2219/17A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 of GB104506A publication Critical patent/GB104506A/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

104,506. Bosch, R., (Firm of). Feb. 26, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Electric speed indicators having alternating- current dynamos provided with rotating permanent magnets and stationary armatures connected to a volt-meter. The limit of indication with increase of speed consequent on the reaction of the armature field is overcome by the insertion of a condenser in the alternating-current circuit and the employment of an ammeter as the measuring- instrument, the armature winding of the dynamo, the ammeter, and condenser being connected in series. In order to obtain readings proportional to the speed, the range of the ammeter is limited to the steep portion of the curve showing the relation between current and speed prior to the point of resonance between the capacity and inductance of the circuit. The range of the instrument may be controlled by varying either or both the capacity of the condenser and the self-induction of the circuit.
GB2219/17A 1916-02-26 1917-02-14 Improvements in Electric Speed Indicators. Expired - Lifetime GB104506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE300996X 1916-02-26

Publications (1)

Publication Number Publication Date
GB104506A true GB104506A (en)

Family

ID=6097283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2219/17A Expired - Lifetime GB104506A (en) 1916-02-26 1917-02-14 Improvements in Electric Speed Indicators.

Country Status (4)

Country Link
AT (1) AT77237B (en)
DE (1) DE300996C (en)
FR (1) FR514319A (en)
GB (1) GB104506A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755557C (en) * 1939-02-01 1954-02-01 Daimler Benz Ag Device for measuring speeds and speed fluctuations with a photoelectric device
BE631445A (en) * 1962-05-16
DE3242109A1 (en) * 1982-11-13 1984-05-17 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR DETECTING THE SPEED OF A ROTATING PART

Also Published As

Publication number Publication date
AT77237B (en) 1919-07-25
DE300996C (en)
FR514319A (en) 1921-03-08

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