GB2111685A - Apparatus for determining the ratio of two signal repetition rates - Google Patents

Apparatus for determining the ratio of two signal repetition rates

Info

Publication number
GB2111685A
GB2111685A GB08227606A GB8227606A GB2111685A GB 2111685 A GB2111685 A GB 2111685A GB 08227606 A GB08227606 A GB 08227606A GB 8227606 A GB8227606 A GB 8227606A GB 2111685 A GB2111685 A GB 2111685A
Authority
GB
United Kingdom
Prior art keywords
ratio
signal
temperature
sense
determining
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
GB08227606A
Other versions
GB2111685B (en
Inventor
William Pickering
David J Urbanc
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB2111685A publication Critical patent/GB2111685A/en
Application granted granted Critical
Publication of GB2111685B publication Critical patent/GB2111685B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

A measurement circuit which is rendered insensitive to temperature and other environmental quantities comprising first and second electrically identical sensor elements (10, 12) which are alternately connected through multiplexed gates (G1, G2) into the tank circuit of an oscillator (14) to generating first and second signal frequencies f1 and f2. The first frequency f1 varies in the same sense with both temperature and the measured signal quantity but the second signal f2 varies in one sense with temperature and in the opposite sense with the measured signal quantity. A logic circuit (18) is proportional to the ratio of f1 and f2. The ratio of the two signals is achieved by frequency dividing f1 and using the result as a variable length gating signal for f2. A non-multiplexed system using matched oscillators is also disclosed.
GB08227606A 1981-05-26 1981-05-26 Apparatus for determining the ratio of two signal repetition rates Expired GB2111685B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1981/000711 WO1982004338A1 (en) 1981-05-26 1981-05-26 Apparatus for determining the ratio of two signal repetition rates

Publications (2)

Publication Number Publication Date
GB2111685A true GB2111685A (en) 1983-07-06
GB2111685B GB2111685B (en) 1985-09-18

Family

ID=22161253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08227606A Expired GB2111685B (en) 1981-05-26 1981-05-26 Apparatus for determining the ratio of two signal repetition rates

Country Status (4)

Country Link
JP (1) JPS58500822A (en)
DE (1) DE3152870A1 (en)
GB (1) GB2111685B (en)
WO (1) WO1982004338A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248112A (en) * 1990-07-14 1992-03-25 Gullick Dobson Ltd Transducers signal processing
DE19810576C2 (en) * 1998-03-11 2000-02-10 Max Planck Gesellschaft Method and device for frequency multiplication or division

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149551B (en) * 1960-04-20 1963-05-30 Licentia Gmbh Arrangement for the percentage impulse-ratio display
US3040983A (en) * 1960-08-01 1962-06-26 Gen Electric Pulse-train ratio apparatus
US3424980A (en) * 1965-05-10 1969-01-28 Gen Time Corp Electronic dividing system for determining the ratio of two differences
US3739156A (en) * 1971-07-21 1973-06-12 Chandler Evans Inc Frequency multiplier
CH548020A (en) * 1971-09-28 1974-04-11 Sartorius Werke Gmbh PROCEDURE FOR DIGITAL SQUARE THE RATIO OF TWO FREQUENCIES, IN PARTICULAR WHEN WEIGHT MEASUREMENT WITH STRING SCALES.
US3943341A (en) * 1973-04-09 1976-03-09 Gianfranco Corsi Computing apparatus
US3872573A (en) * 1973-12-19 1975-03-25 Raychem Corp Process and apparatus for making heat recoverable composite couplings
CH589281A5 (en) * 1975-01-09 1977-06-30 Centre Electron Horloger
JPS5928845B2 (en) * 1978-08-17 1984-07-16 富士電機株式会社 displacement converter
US4244027A (en) * 1979-03-19 1981-01-06 Rca Corporation Digital open loop programmable frequency multiplier

Also Published As

Publication number Publication date
GB2111685B (en) 1985-09-18
WO1982004338A1 (en) 1982-12-09
JPS58500822A (en) 1983-05-19
DE3152870A1 (en) 1983-07-28

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee