FR2262793A1 - Digital quotient meter with numerical readout - has coupled and compared counters for pulse generator - Google Patents

Digital quotient meter with numerical readout - has coupled and compared counters for pulse generator

Info

Publication number
FR2262793A1
FR2262793A1 FR7407860A FR7407860A FR2262793A1 FR 2262793 A1 FR2262793 A1 FR 2262793A1 FR 7407860 A FR7407860 A FR 7407860A FR 7407860 A FR7407860 A FR 7407860A FR 2262793 A1 FR2262793 A1 FR 2262793A1
Authority
FR
France
Prior art keywords
pulse generator
counter
counters
meter
coupled
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
FR7407860A
Other languages
French (fr)
Other versions
FR2262793B1 (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.)
Compagnie IBM France SAS
Original Assignee
Compagnie IBM France SAS
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 Compagnie IBM France SAS filed Critical Compagnie IBM France SAS
Priority to FR7407860A priority Critical patent/FR2262793A1/en
Priority to JP601175A priority patent/JPS50120874A/ja
Publication of FR2262793A1 publication Critical patent/FR2262793A1/en
Application granted granted Critical
Publication of FR2262793B1 publication Critical patent/FR2262793B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/02—Checking or adjusting ignition timing
    • F02P17/04—Checking or adjusting ignition timing dynamically
    • 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
    • G01P3/489—Digital circuits therefor
    • 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
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
    • G01P3/60—Devices characterised by the use of electric or magnetic means for comparing two speeds by measuring or comparing frequency of generated currents or voltages
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an AC
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mathematical Physics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Fuzzy Systems (AREA)
  • Software Systems (AREA)
  • Chemical & Material Sciences (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Phase Differences (AREA)

Abstract

The meter is used in an automatic test and diagnostic equipment as a phase meter for ignition advance measurements and also as a tachometer. A control circuit receives two variable amplitude signals of which the quotient is required. A pulse generator has two pulse train outputs which are switched by the control circuit. The switches permit the pulses to increment two counters during respective time intervals. Pulses at the output of one counter increment a second counter and provide a reset to zero signal from a pulse generator. When the value of this count equals that of the other counter a comparator increments a fourth counter to give a count proportional to the quotient.
FR7407860A 1974-02-28 1974-02-28 Digital quotient meter with numerical readout - has coupled and compared counters for pulse generator Granted FR2262793A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7407860A FR2262793A1 (en) 1974-02-28 1974-02-28 Digital quotient meter with numerical readout - has coupled and compared counters for pulse generator
JP601175A JPS50120874A (en) 1974-02-28 1975-01-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7407860A FR2262793A1 (en) 1974-02-28 1974-02-28 Digital quotient meter with numerical readout - has coupled and compared counters for pulse generator

Publications (2)

Publication Number Publication Date
FR2262793A1 true FR2262793A1 (en) 1975-09-26
FR2262793B1 FR2262793B1 (en) 1976-12-10

Family

ID=9135998

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407860A Granted FR2262793A1 (en) 1974-02-28 1974-02-28 Digital quotient meter with numerical readout - has coupled and compared counters for pulse generator

Country Status (2)

Country Link
JP (1) JPS50120874A (en)
FR (1) FR2262793A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2349828A1 (en) * 1976-04-30 1977-11-25 Sulzer Ag METHOD AND DEVICE FOR NON-CONTACT MEASUREMENT AND CONTROL OF THE VIBRATORY STATE OF THE MOBILE FINS OF AN AXIAL TURBOMACHINE
FR2577049A1 (en) * 1985-02-05 1986-08-08 Peugeot DEVICE FOR COMPARING THE DURATION OF TWO CRANES
WO1988007631A1 (en) * 1987-03-30 1988-10-06 Siemens Aktiengesellschaft Arrangement for determining the ignition angle in combustion engines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0325316A (en) * 1989-06-22 1991-02-04 Shimpo Ind Co Ltd Ratio meter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2349828A1 (en) * 1976-04-30 1977-11-25 Sulzer Ag METHOD AND DEVICE FOR NON-CONTACT MEASUREMENT AND CONTROL OF THE VIBRATORY STATE OF THE MOBILE FINS OF AN AXIAL TURBOMACHINE
FR2577049A1 (en) * 1985-02-05 1986-08-08 Peugeot DEVICE FOR COMPARING THE DURATION OF TWO CRANES
EP0192530A1 (en) * 1985-02-05 1986-08-27 Automobiles Peugeot Circuit for comparing the widths of two rectangular pulses
WO1988007631A1 (en) * 1987-03-30 1988-10-06 Siemens Aktiengesellschaft Arrangement for determining the ignition angle in combustion engines

Also Published As

Publication number Publication date
JPS50120874A (en) 1975-09-22
FR2262793B1 (en) 1976-12-10

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Legal Events

Date Code Title Description
ST Notification of lapse