GB2111685A - Apparatus for determining the ratio of two signal repetition rates - Google Patents
Apparatus for determining the ratio of two signal repetition ratesInfo
- 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
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.
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)
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)
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 |
-
1981
- 1981-05-26 WO PCT/US1981/000711 patent/WO1982004338A1/en active Application Filing
- 1981-05-26 JP JP50232181A patent/JPS58500822A/en active Pending
- 1981-05-26 GB GB08227606A patent/GB2111685B/en not_active Expired
- 1981-05-26 DE DE19813152870 patent/DE3152870A1/en not_active Ceased
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 |