JPS62192257U

JPS62192257U -

Info

Publication number: JPS62192257U
Application number: JP7943086U
Authority: JP
Priority date: 1986-05-26
Filing date: 1986-05-26
Publication date: 1987-12-07

Description

[Brief explanation of the drawing]

第１図乃至第４図は本考案の一実施例を示すも
ので、第１図は光学式回転速度検出装置の正面図
、第２図は透明容器の斜視図、第３図は透明容器
の一部の断面図、第４図は所定速度回転時の透明
容器の一部の断面図であり、第５図は従来の遠心
力を利用した回転速度検出装置の正面図である。１１……容器、１３，１４，１５……比重の異
なる液体、１６……光源、１７……光電素子。 Figures 1 to 4 show an embodiment of the present invention, in which Figure 1 is a front view of an optical rotation speed detection device, Figure 2 is a perspective view of a transparent container, and Figure 3 is a perspective view of a transparent container. FIG. 4 is a cross-sectional view of a portion of the transparent container during rotation at a predetermined speed, and FIG. 5 is a front view of a conventional rotational speed detection device using centrifugal force. 11... Container, 13, 14, 15... Liquids with different specific gravity, 16... Light source, 17... Photoelectric element.

Claims

[Scope of utility model registration request]

Several types of liquids with different specific gravity, which are separated from each other by centrifugal force, are sealed in a transparent container that can rotate together with a rotating body, each colored with a different light transmittance, and a light source is installed on one side of the transparent container in the axial direction. What is claimed is: 1. An optical rotational speed detection device comprising: a photoelectric element facing the light source and sensing a change in the amount of light transmitted through the liquid and emitting an electric signal on the other side;