GB1211435A - Improvements in or relating to systems of correcting the temperature error of refractometers - Google Patents
Improvements in or relating to systems of correcting the temperature error of refractometersInfo
- Publication number
- GB1211435A GB1211435A GB636168A GB636168A GB1211435A GB 1211435 A GB1211435 A GB 1211435A GB 636168 A GB636168 A GB 636168A GB 636168 A GB636168 A GB 636168A GB 1211435 A GB1211435 A GB 1211435A
- Authority
- GB
- United Kingdom
- Prior art keywords
- refractometers
- optical
- temperature changes
- scale
- prism
- 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
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
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
Landscapes
- Physics & Mathematics (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)
Abstract
1,211,435. Refractometers. AMERICAN OPTICAL CORP. Feb. 8, 1968 [March 3, 1967], No. 6361/68. Heading G2J A critical angle refractometer comprises an entrance face 1 of a measuring prism 2 for receiving thereupon a substance 9 to be examined, an optical system 4 for focusing light beams leaving the entrance face at the critical angle to produce an optical image in an image plane associated with a scale 6, and a thermal actuator 5 arranged in response to temperature changes to move a lens element of the optical system so as to produce displacement between the optical image and the scale in response to temperature changes. The measuring prism 2 may be formed of two components having different optical dispersion, the components having the same refractive index for one line of the spectron and having a common face which is spherical. An inclined fixed wedge or prism 3 may be positioned between the measuring prism and the lens and serves to modify the correction necessary due to the escalation of the scale point resulting from temperature changes of the specimen. A full thearetical treatment is given, and design data for sucrose and ethylene glycol refractometers discussed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR97296A FR1526011A (en) | 1967-03-03 | 1967-03-03 | Temperature compensated refractometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1211435A true GB1211435A (en) | 1970-11-04 |
Family
ID=8626284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB636168A Expired GB1211435A (en) | 1967-03-03 | 1968-02-08 | Improvements in or relating to systems of correcting the temperature error of refractometers |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1622118A1 (en) |
| FR (1) | FR1526011A (en) |
| GB (1) | GB1211435A (en) |
| IL (1) | IL29449A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505287A (en) * | 2017-09-21 | 2017-12-22 | 北京领航力嘉机电有限公司 | A kind of measuring refractive indexes of liquid system based on image recognition technology |
-
1967
- 1967-03-03 FR FR97296A patent/FR1526011A/en not_active Expired
-
1968
- 1968-02-08 GB GB636168A patent/GB1211435A/en not_active Expired
- 1968-02-11 IL IL2944968A patent/IL29449A/en unknown
- 1968-02-16 DE DE19681622118 patent/DE1622118A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505287A (en) * | 2017-09-21 | 2017-12-22 | 北京领航力嘉机电有限公司 | A kind of measuring refractive indexes of liquid system based on image recognition technology |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1526011A (en) | 1968-05-24 |
| IL29449A (en) | 1972-08-30 |
| DE1622118A1 (en) | 1970-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |