FR2329975A1 - Digital linearisation for non-linear analogue signals - produces correction code from comparison of signal with straight-line function - Google Patents
Digital linearisation for non-linear analogue signals - produces correction code from comparison of signal with straight-line functionInfo
- Publication number
- FR2329975A1 FR2329975A1 FR7632755A FR7632755A FR2329975A1 FR 2329975 A1 FR2329975 A1 FR 2329975A1 FR 7632755 A FR7632755 A FR 7632755A FR 7632755 A FR7632755 A FR 7632755A FR 2329975 A1 FR2329975 A1 FR 2329975A1
- Authority
- FR
- France
- Prior art keywords
- digital
- straight
- linearisation
- correction
- gate
- 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
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/005—Circuits for altering the indicating characteristic, e.g. making it non-linear
-
- 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
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/02—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation
- G01D3/022—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation having an ideal characteristic, map or correction data stored in a digital memory
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Technology Law (AREA)
- Nonlinear Science (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
The digital linearisation circuit provides automatic correction of a non-linear output of a measuring instrument e.g. resistance thermometer. The analogue signal is converted to digital form (20). The output of the converter is connected to an OR-gate and binary counter (23) whose outputs are connected to the address inputs of a coefficient register (24). The individual points on the non-linear characteristic curve are compared with corresponding points on a straight-line reference so that a correction code-word is produced. The correction signals, in complementary-code, pass to a correction register (25) controlled by a clock-pulse (29). The clock-pulse is gated via a flip-flop (26) and AND-gate (27) to the OR-gate at the input of the binary counter. The digitally-corrected output of the first counter (23) can be used to operate a display device.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752549222 DE2549222C2 (en) | 1975-11-03 | Digital circuit arrangement for linearizing non-linear encoder characteristics |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2329975A1 true FR2329975A1 (en) | 1977-05-27 |
FR2329975B1 FR2329975B1 (en) | 1982-04-16 |
Family
ID=5960754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7632755A Granted FR2329975A1 (en) | 1975-11-03 | 1976-10-29 | Digital linearisation for non-linear analogue signals - produces correction code from comparison of signal with straight-line function |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5257767A (en) |
AT (1) | AT353888B (en) |
CH (1) | CH606995A5 (en) |
FR (1) | FR2329975A1 (en) |
IT (1) | IT1075887B (en) |
NL (1) | NL7612180A (en) |
SE (1) | SE410224B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2357905A1 (en) * | 1976-07-07 | 1978-02-03 | Heliowatt Werke | ERROR COMPENSATION PROCESS, IN PARTICULAR FOR MEASURING EQUIPMENT TRANSFORMING ANALOGUE QUANTITIES INTO DIGITAL VALUES |
FR2379800A1 (en) * | 1977-02-08 | 1978-09-01 | Zumbach Electronic Ag | METHOD OF MEASURING ABSOLUTE VALUES BY MEANS OF A MEASURING SENSOR WITH NON-LINEAR OPERATION AND OF A MEASURING DEVICE FOR CARRYING OUT THIS PROCESS |
FR2381283A1 (en) * | 1977-02-16 | 1978-09-15 | Aga Ab | LINEAR OR ANGULAR LENGTH MEASUREMENT DEVICE |
FR2509851A1 (en) * | 1981-07-17 | 1983-01-21 | Tesa Sa | ELECTRONIC MEASUREMENT SENSOR |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT403850B (en) * | 1990-08-10 | 1998-05-25 | Mecanotronic Produktion Von El | Calibration method |
JP2008023272A (en) * | 2006-07-25 | 2008-02-07 | Naohiro Kimata | Association cards |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855466A (en) * | 1973-04-05 | 1974-12-17 | Bodenseewerk Geraetetech | Circuit arrangement for linearization of the characteristic of a sensor |
DE2360011A1 (en) * | 1973-06-05 | 1975-01-02 | Rationalisierung Konfekt Veb | METHOD OF TEMPERATURE MEASUREMENT USING A SEMICONDUCTOR RESISTOR |
FR2239721A1 (en) * | 1973-07-31 | 1975-02-28 | Solartron Electronic Group | |
DE2404696A1 (en) * | 1974-02-01 | 1975-08-07 | Messerschmitt Boelkow Blohm | Circuitry to linearise characteristic of digital pick-up - uses output variable as pulse count proportional to measured value |
-
1976
- 1976-10-18 AT AT773476A patent/AT353888B/en not_active IP Right Cessation
- 1976-10-20 SE SE7611637A patent/SE410224B/en unknown
- 1976-10-25 CH CH1343576A patent/CH606995A5/xx not_active IP Right Cessation
- 1976-10-29 FR FR7632755A patent/FR2329975A1/en active Granted
- 1976-11-02 IT IT28937/76A patent/IT1075887B/en active
- 1976-11-03 NL NL7612180A patent/NL7612180A/en not_active Application Discontinuation
- 1976-11-04 JP JP51132739A patent/JPS5257767A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855466A (en) * | 1973-04-05 | 1974-12-17 | Bodenseewerk Geraetetech | Circuit arrangement for linearization of the characteristic of a sensor |
DE2360011A1 (en) * | 1973-06-05 | 1975-01-02 | Rationalisierung Konfekt Veb | METHOD OF TEMPERATURE MEASUREMENT USING A SEMICONDUCTOR RESISTOR |
FR2239721A1 (en) * | 1973-07-31 | 1975-02-28 | Solartron Electronic Group | |
DE2404696A1 (en) * | 1974-02-01 | 1975-08-07 | Messerschmitt Boelkow Blohm | Circuitry to linearise characteristic of digital pick-up - uses output variable as pulse count proportional to measured value |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2357905A1 (en) * | 1976-07-07 | 1978-02-03 | Heliowatt Werke | ERROR COMPENSATION PROCESS, IN PARTICULAR FOR MEASURING EQUIPMENT TRANSFORMING ANALOGUE QUANTITIES INTO DIGITAL VALUES |
FR2379800A1 (en) * | 1977-02-08 | 1978-09-01 | Zumbach Electronic Ag | METHOD OF MEASURING ABSOLUTE VALUES BY MEANS OF A MEASURING SENSOR WITH NON-LINEAR OPERATION AND OF A MEASURING DEVICE FOR CARRYING OUT THIS PROCESS |
FR2381283A1 (en) * | 1977-02-16 | 1978-09-15 | Aga Ab | LINEAR OR ANGULAR LENGTH MEASUREMENT DEVICE |
FR2509851A1 (en) * | 1981-07-17 | 1983-01-21 | Tesa Sa | ELECTRONIC MEASUREMENT SENSOR |
Also Published As
Publication number | Publication date |
---|---|
JPS5257767A (en) | 1977-05-12 |
IT1075887B (en) | 1985-04-22 |
DE2549222B1 (en) | 1977-01-20 |
AT353888B (en) | 1979-12-10 |
SE7611637L (en) | 1977-05-04 |
NL7612180A (en) | 1977-05-05 |
CH606995A5 (en) | 1978-11-30 |
SE410224B (en) | 1979-10-01 |
ATA773476A (en) | 1979-05-15 |
FR2329975B1 (en) | 1982-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |