JPS6438634A - Sensor head for refractometer - Google Patents
Sensor head for refractometerInfo
- Publication number
- JPS6438634A JPS6438634A JP19381287A JP19381287A JPS6438634A JP S6438634 A JPS6438634 A JP S6438634A JP 19381287 A JP19381287 A JP 19381287A JP 19381287 A JP19381287 A JP 19381287A JP S6438634 A JPS6438634 A JP S6438634A
- Authority
- JP
- Japan
- Prior art keywords
- reflection
- sensor head
- plane
- light
- photodetector
- 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.)
- Pending
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To simplify a structure by constructing a sensor head of a light input/ output surface facing a light source and a photodetector and of an optical prism provided with two reflection planes and by using one of the reflection plane as a measuring element. CONSTITUTION:A sensor head 1 is provided with a light input/output plane 1a facing a light source 2 and a photodetector 3 through a optical fibers 4 and 5 respectively and with two reflection planes 1b and 1c, and the reflection planes 1b and 1c are so constructed that they are spherical and that one reflection plane 1b contacts a sample X while the other reflection plane 1c makes total internal reflection. A light emitted from the light source 2 enters the sensor head 1, i.e. an optical prism, through the optical fiber 4, and a reflection loss corresponding to the refractive index and concentration of a sample X (solution to be measured) occurs on the reflection plane 1b contacting the sample X. Then, the light is reflected on the reflection plane 1c, enters the optical fiber 5 and is taken in by the photodetector 3 through the optical fiber 5. An electric signal outputted from the detector 3 is supplied to a processor 9, and a value of refractive index corresponding to the intensity of the detection signal is displayed in a display 11.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19381287A JPS6438634A (en) | 1987-08-04 | 1987-08-04 | Sensor head for refractometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19381287A JPS6438634A (en) | 1987-08-04 | 1987-08-04 | Sensor head for refractometer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6438634A true JPS6438634A (en) | 1989-02-08 |
Family
ID=16314173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19381287A Pending JPS6438634A (en) | 1987-08-04 | 1987-08-04 | Sensor head for refractometer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6438634A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5442435A (en) * | 1994-03-24 | 1995-08-15 | Nartron Corporation | Fluid composition sensor using reflected or refracted light monitoring |
JP2006023200A (en) * | 2004-07-08 | 2006-01-26 | Kurabo Ind Ltd | Optical probe and spectrometric apparatus |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5267681A (en) * | 1975-12-02 | 1977-06-04 | Yuasa Battery Co Ltd | Fluid refractive index measuring apparatus |
JPS58169050A (en) * | 1982-03-31 | 1983-10-05 | Nippon Beet Sugar Mfg Co Ltd | Apparatus for measuring density, concentration, specific gravity and the like of liquid |
-
1987
- 1987-08-04 JP JP19381287A patent/JPS6438634A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5267681A (en) * | 1975-12-02 | 1977-06-04 | Yuasa Battery Co Ltd | Fluid refractive index measuring apparatus |
JPS58169050A (en) * | 1982-03-31 | 1983-10-05 | Nippon Beet Sugar Mfg Co Ltd | Apparatus for measuring density, concentration, specific gravity and the like of liquid |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5442435A (en) * | 1994-03-24 | 1995-08-15 | Nartron Corporation | Fluid composition sensor using reflected or refracted light monitoring |
JP2006023200A (en) * | 2004-07-08 | 2006-01-26 | Kurabo Ind Ltd | Optical probe and spectrometric apparatus |
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