CA1188538A - Data compression system for a photometer - Google Patents
Data compression system for a photometerInfo
- Publication number
- CA1188538A CA1188538A CA000410166A CA410166A CA1188538A CA 1188538 A CA1188538 A CA 1188538A CA 000410166 A CA000410166 A CA 000410166A CA 410166 A CA410166 A CA 410166A CA 1188538 A CA1188538 A CA 1188538A
- Authority
- CA
- Canada
- Prior art keywords
- network
- analog
- ratioing
- signal
- sample
- 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.)
- Expired
Links
- 238000013144 data compression Methods 0.000 title claims abstract description 13
- 230000009977 dual effect Effects 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000000153 supplemental effect Effects 0.000 claims description 2
- 238000005375 photometry Methods 0.000 claims 2
- 239000003990 capacitor Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 241001527902 Aratus Species 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/50—Analogue/digital converters with intermediate conversion to time interval
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US296,851 | 1981-08-27 | ||
| US06/296,851 US4498781A (en) | 1981-08-27 | 1981-08-27 | Data compression system for a photometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1188538A true CA1188538A (en) | 1985-06-11 |
Family
ID=23143845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000410166A Expired CA1188538A (en) | 1981-08-27 | 1982-08-26 | Data compression system for a photometer |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4498781A (enExample) |
| EP (1) | EP0073467A2 (enExample) |
| JP (1) | JPS5842955A (enExample) |
| CA (1) | CA1188538A (enExample) |
| DK (1) | DK381882A (enExample) |
| GR (1) | GR76903B (enExample) |
| MX (1) | MX151623A (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637729A (en) * | 1983-12-14 | 1987-01-20 | Carrier Corporation | Fiber optic moisture analysis probe |
| EP0227861B1 (fr) * | 1985-12-24 | 1990-07-04 | Barco Automation, Naamloze Vennootschap | Procédé de mesure d'une grandeur physique fournissant des données numériques à partir de dispositifs de mesure de valeurs analogiques et appareil de mesure appliquant ce procédé |
| JPH0619082Y2 (ja) * | 1987-04-16 | 1994-05-18 | 日本分光株式会社 | 光学検出装置 |
| US5054878A (en) * | 1990-06-04 | 1991-10-08 | Conoco Inc. | Device for source compensating a fiber optic coupler output |
| US6891430B1 (en) * | 2000-07-05 | 2005-05-10 | Cirrus Logic, Inc. | Techniques for signal measurement using a conditionally stable amplifier |
| US8284971B2 (en) * | 2008-11-21 | 2012-10-09 | Envoy Medical Corporation | Logarithmic compression systems and methods for hearing amplification |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3173983A (en) * | 1962-01-02 | 1965-03-16 | James L Engle | Arc positioning servo |
| US3970393A (en) * | 1974-07-23 | 1976-07-20 | Harris Corporation | Automatic compensation for densitometer imbalance |
| US4080075A (en) * | 1976-09-20 | 1978-03-21 | Foresight Enterprises, Inc. | Compensated densitometer |
-
1981
- 1981-08-27 US US06/296,851 patent/US4498781A/en not_active Expired - Lifetime
-
1982
- 1982-08-25 EP EP82107796A patent/EP0073467A2/en not_active Withdrawn
- 1982-08-26 JP JP57146991A patent/JPS5842955A/ja active Pending
- 1982-08-26 MX MX194156A patent/MX151623A/es unknown
- 1982-08-26 CA CA000410166A patent/CA1188538A/en not_active Expired
- 1982-08-26 DK DK381882A patent/DK381882A/da not_active Application Discontinuation
- 1982-08-27 GR GR69143A patent/GR76903B/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US4498781A (en) | 1985-02-12 |
| JPS5842955A (ja) | 1983-03-12 |
| DK381882A (da) | 1983-02-28 |
| MX151623A (es) | 1985-01-14 |
| GR76903B (enExample) | 1984-09-04 |
| EP0073467A2 (en) | 1983-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |