The method of optical inspection of transparent liquid level

 

(57) Abstract:

Way of the optical level control transparent liquids, which consists in the direction of a transparent container with a liquid light beam generated by the radiation source, and the capture of the refracted beam receiver mounted on the same level as the source on the other side of the container, characterized in that the formed beam is directed to the plane-parallel wall of the container at an angle of incidence of the beam 30 - 60oand the installation position of the receiver is chosen from the relation

< / BR>
where l is the distance from the optical axis of the beam to the receiver on the wall of the container;

- the angle of incidence of the beam formed on the wall of the container;

d is the total thickness of the transparent walls of the container, through which the beam;

D - the distance between the transparent walls of the container, through which the beam;

n1- optical refractive index of the transparent material of the container walls;

n2- optical refractive index of the controlled fluid.

 

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