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CH490677A - Device for determining the speed of a vehicle - Google Patents

Device for determining the speed of a vehicle

Info

Publication number
CH490677A
CH490677A CH480668A CH480668A CH490677A CH 490677 A CH490677 A CH 490677A CH 480668 A CH480668 A CH 480668A CH 480668 A CH480668 A CH 480668A CH 490677 A CH490677 A CH 490677A
Authority
CH
Switzerland
Prior art keywords
vehicle
determining
speed
Prior art date
Application number
CH480668A
Other languages
German (de)
Inventor
Darr Christian
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Priority to CH480668A priority Critical patent/CH490677A/en
Priority to DE19691916706 priority patent/DE1916706A1/en
Publication of CH490677A publication Critical patent/CH490677A/en

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
    • G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
    • G01P3/54—Devices characterised by the use of electric or magnetic means for measuring linear speed by measuring frequency of generated current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
CH480668A 1968-04-01 1968-04-01 Device for determining the speed of a vehicle CH490677A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH480668A CH490677A (en) 1968-04-01 1968-04-01 Device for determining the speed of a vehicle
DE19691916706 DE1916706A1 (en) 1968-04-01 1969-04-01 Device for determining the speed of a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH480668A CH490677A (en) 1968-04-01 1968-04-01 Device for determining the speed of a vehicle

Publications (1)

Publication Number Publication Date
CH490677A true CH490677A (en) 1970-05-15

Family

ID=4282864

Family Applications (1)

Application Number Title Priority Date Filing Date
CH480668A CH490677A (en) 1968-04-01 1968-04-01 Device for determining the speed of a vehicle

Country Status (2)

Country Link
CH (1) CH490677A (en)
DE (1) DE1916706A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112881744A (en) * 2021-02-08 2021-06-01 中科(湖南)先进轨道交通研究院有限公司 Train speed and direction measuring device based on train sound and working method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002434A1 (en) * 1980-01-24 1981-07-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Road vehicle speed determination system - using directional microphones to measure frequency shift between two points
FR2497982A1 (en) * 1981-01-13 1982-07-16 Henri Coussineux SEISMIC CINEMOMETER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112881744A (en) * 2021-02-08 2021-06-01 中科(湖南)先进轨道交通研究院有限公司 Train speed and direction measuring device based on train sound and working method thereof
CN112881744B (en) * 2021-02-08 2023-04-07 中科(湖南)先进轨道交通研究院有限公司 Train speed and direction measuring device based on train sound and working method thereof

Also Published As

Publication number Publication date
DE1916706A1 (en) 1969-10-30

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Legal Events

Date Code Title Description
PL Patent ceased