FR2342486A1 - Integration of acceleration to determine speed - is performed by integrator with comparators and counter circuits at output - Google Patents

Integration of acceleration to determine speed - is performed by integrator with comparators and counter circuits at output

Info

Publication number
FR2342486A1
FR2342486A1 FR7605567A FR7605567A FR2342486A1 FR 2342486 A1 FR2342486 A1 FR 2342486A1 FR 7605567 A FR7605567 A FR 7605567A FR 7605567 A FR7605567 A FR 7605567A FR 2342486 A1 FR2342486 A1 FR 2342486A1
Authority
FR
France
Prior art keywords
comparators
integrator
acceleration
integration
output
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.)
Granted
Application number
FR7605567A
Other languages
French (fr)
Other versions
FR2342486B3 (en
Inventor
Gilbert Andre Cardona
Jean-Noel Pillot
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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications SA
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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Priority to FR7605567A priority Critical patent/FR2342486A1/en
Publication of FR2342486A1 publication Critical patent/FR2342486A1/en
Application granted granted Critical
Publication of FR2342486B3 publication Critical patent/FR2342486B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/04—Measuring arrangements giving results other than momentary value of variable, of general application giving integrated values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/16—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by evaluating the time-derivative of a measured speed signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/10—Calibration or testing
    • H03M1/1009—Calibration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Automation & Control Theory (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • Software Systems (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

The integral of a physical value such as acceleration from an accelerometer is determined to provide a numerical indication of speed. An input current (ie) is integrated by an operational amplifier (2) with feedback capacitor (3). The output voltage (Vs) is applied to two comparators (4, 5) to provide count and count down signals for two counters (6, 9). The second counter (9) is connected to a digital to analogue convertor (10) to provide threshold values for the comparators. It also provides signals to control switches (11, 12) which enable connexion of calibrated constant currents (7, 8) to the integrator and allow clock (13) pulses to be sent to the counters.
FR7605567A 1976-02-27 1976-02-27 Integration of acceleration to determine speed - is performed by integrator with comparators and counter circuits at output Granted FR2342486A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7605567A FR2342486A1 (en) 1976-02-27 1976-02-27 Integration of acceleration to determine speed - is performed by integrator with comparators and counter circuits at output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7605567A FR2342486A1 (en) 1976-02-27 1976-02-27 Integration of acceleration to determine speed - is performed by integrator with comparators and counter circuits at output

Publications (2)

Publication Number Publication Date
FR2342486A1 true FR2342486A1 (en) 1977-09-23
FR2342486B3 FR2342486B3 (en) 1979-06-29

Family

ID=9169706

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7605567A Granted FR2342486A1 (en) 1976-02-27 1976-02-27 Integration of acceleration to determine speed - is performed by integrator with comparators and counter circuits at output

Country Status (1)

Country Link
FR (1) FR2342486A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0387686A2 (en) * 1989-03-17 1990-09-19 Siemens Aktiengesellschaft Voltage-to-frequency conversion method and device for implementing the method
EP0387685A2 (en) * 1989-03-17 1990-09-19 Siemens Aktiengesellschaft Voltage-to-frequency conversion method and device for implementing the method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0387686A2 (en) * 1989-03-17 1990-09-19 Siemens Aktiengesellschaft Voltage-to-frequency conversion method and device for implementing the method
EP0387685A2 (en) * 1989-03-17 1990-09-19 Siemens Aktiengesellschaft Voltage-to-frequency conversion method and device for implementing the method
EP0387686A3 (en) * 1989-03-17 1993-03-17 Siemens Aktiengesellschaft Voltage-to-frequency conversion method and device for implementing the method
EP0387685A3 (en) * 1989-03-17 1993-03-17 Siemens Aktiengesellschaft Voltage-to-frequency conversion method and device for implementing the method

Also Published As

Publication number Publication date
FR2342486B3 (en) 1979-06-29

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