JPS59116851U - Refractometer for liquids - Google Patents
Refractometer for liquidsInfo
- Publication number
- JPS59116851U JPS59116851U JP15702083U JP15702083U JPS59116851U JP S59116851 U JPS59116851 U JP S59116851U JP 15702083 U JP15702083 U JP 15702083U JP 15702083 U JP15702083 U JP 15702083U JP S59116851 U JPS59116851 U JP S59116851U
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- measured
- refractive index
- fiber
- transparent object
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は光ファイバーの構造を示す断面模式図、第２図
は被測定液体の屈折率と光出力との関係を示すグラフ、
第３図は本考案の実施例を示す側面図である。
１・・・・・・コア部、２・・・・・・クラツディング
層、１４・・・・・・光ファイバー、１５・・・・・・
光ファイバーのコア部、１６・・・・・・被測定液体、
１７・・・・・・発光ダイオード、１８・・・・・・フ
ォトトランジスター。Figure 1 is a cross-sectional schematic diagram showing the structure of an optical fiber, Figure 2 is a graph showing the relationship between the refractive index of the liquid to be measured and the optical output.
FIG. 3 is a side view showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Core part, 2... Cladding layer, 14... Optical fiber, 15...
Core part of optical fiber, 16... liquid to be measured,
17... Light emitting diode, 18... Phototransistor.
Claims (1)
体の屈折率範囲Ｎ□〜Ｎ２よりも高い屈折率Ｎ３を有す
る透明物体、 （ロ）すくな（とも５ｉｎ−”Ｎ１／Ｎ３〜ｓｉｎ
’Ｎ２／Ｎ３で定まる全反射臨界角の範囲内に分布する
角度成分を含む光を透明物体を通じて前記表面に入射さ
せる手段、および （ハ）前記表面から反射する光の量を検出する手段とか
らなり、前記透明物体はＵ字形とした透明ファイバーで
構成し、該ファイバーの被測定液外の部分をこのファイ
バーよりも低屈折率のクラツディング層で被覆したこと
を特徴とする液体屈折率計。[Claims for Utility Model Registration] (a) A transparent object having a surface to be brought into contact with the liquid to be measured and a refractive index N3 higher than the refractive index range N□ to N2 of the liquid to be measured; 5in-”N1/N3~sin
means for causing light including angular components distributed within the range of the total reflection critical angle determined by N2/N3 to be incident on the surface through the transparent object; and (c) means for detecting the amount of light reflected from the surface. A liquid refractometer, characterized in that the transparent object is composed of a U-shaped transparent fiber, and a portion of the fiber outside the liquid to be measured is covered with a cladding layer having a refractive index lower than that of the fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15702083U JPS59116851U (en) | 1983-10-11 | 1983-10-11 | Refractometer for liquids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15702083U JPS59116851U (en) | 1983-10-11 | 1983-10-11 | Refractometer for liquids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59116851U true JPS59116851U (en) | 1984-08-07 |
Family
ID=30346310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15702083U Pending JPS59116851U (en) | 1983-10-11 | 1983-10-11 | Refractometer for liquids |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59116851U (en) |
-
1983
- 1983-10-11 JP JP15702083U patent/JPS59116851U/en active Pending
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