GB1263195A - Clinical apparatus for testing fluid samples by optical means - Google Patents
Clinical apparatus for testing fluid samples by optical meansInfo
- Publication number
- GB1263195A GB1263195A GB03557/70A GB1355770A GB1263195A GB 1263195 A GB1263195 A GB 1263195A GB 03557/70 A GB03557/70 A GB 03557/70A GB 1355770 A GB1355770 A GB 1355770A GB 1263195 A GB1263195 A GB 1263195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- test
- detector
- card
- march
- photo
- 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
- 239000012530 fluid Substances 0.000 title abstract 2
- 230000003287 optical effect Effects 0.000 title 1
- 239000000523 sample Substances 0.000 abstract 4
- 230000005855 radiation Effects 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
1,263,195. Photo-electric colorimeter; indicating apparatus. BAXTER LABORATORIES Inc. March 20, 1970 [March 21, 1969], No, 13557/70. Headings G1A and G1J. In a colorimetric apparatus for testing fluid samples in which a sample is placed between a radiation source and photo-detector 122 whose output is supplied to a meter 42 located in the housing 12, a replaceable transparent card or slide member 32 representing a particular test is slidable in the housing and has indicia 32A marked thereon which provide a scale for the said test. Each test has its corresponding card containing the relevant indicia, and each card has a notch cut into its lower surface(32b) Fig.2 (not shown). This notch is engageable with a cam member (68A) which positions in the radiation path a filter corresponding to the particular test. The test sample is contained in a test tube which is moved into position to surround a probe 22. This probe contains a light guide 50 conveying light from a source across a cut-out 119-120 defining the absorption path to the photocell 122. The filter arrangement containing the different filters is placed between the light source and the end of the guide. The detector circuitry Fig.6 (not shown) includes two calibration potentiometers (202, 204) for adjusting the meter reading when two calibration samples of known strength are employed in a particular test. A balancing network (214-218) is provided at the input to an operational amplifier (206) to compensate for variations in detector sensitivity.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80931869A | 1969-03-21 | 1969-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1263195A true GB1263195A (en) | 1972-02-09 |
Family
ID=25201044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB03557/70A Expired GB1263195A (en) | 1969-03-21 | 1970-03-20 | Clinical apparatus for testing fluid samples by optical means |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE747392A (en) |
| DE (2) | DE7009132U (en) |
| FR (1) | FR2039691A5 (en) |
| GB (1) | GB1263195A (en) |
| IL (1) | IL34059A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2141537A (en) * | 1983-06-16 | 1984-12-19 | Shipley Co | Probe for measurement of metal ion concentration |
| GB2161601A (en) * | 1984-07-13 | 1986-01-15 | Bass Plc | Determining the head- retaining properties of beer and other beverages |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH586901A5 (en) * | 1975-09-22 | 1977-04-15 | Contraves Ag |
-
1970
- 1970-03-11 IL IL34059A patent/IL34059A/en unknown
- 1970-03-12 DE DE7009132U patent/DE7009132U/en not_active Expired
- 1970-03-12 DE DE19702011769 patent/DE2011769A1/de active Pending
- 1970-03-16 BE BE747392D patent/BE747392A/en unknown
- 1970-03-19 FR FR7009818A patent/FR2039691A5/fr not_active Expired
- 1970-03-20 GB GB03557/70A patent/GB1263195A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2141537A (en) * | 1983-06-16 | 1984-12-19 | Shipley Co | Probe for measurement of metal ion concentration |
| GB2161601A (en) * | 1984-07-13 | 1986-01-15 | Bass Plc | Determining the head- retaining properties of beer and other beverages |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2011769A1 (en) | 1970-10-01 |
| IL34059A0 (en) | 1970-05-21 |
| BE747392A (en) | 1970-08-31 |
| DE7009132U (en) | 1973-05-17 |
| IL34059A (en) | 1973-04-30 |
| FR2039691A5 (en) | 1971-01-15 |
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