G - Physics – 01 – C
Patent
G - Physics
01
C
G01C 9/06 (2006.01)
Patent
CA 2128702
(57) Abstract An optical measuring instrument to indicate or determine the relative posi- tion or an objet and/or a substrate in relation to a horizontal plane comprises an Image at least partially tranparent measuring chamber containing two non-miscible me- dia with different densities, one of the media being at least partially transparent or translucent and at least the other being a fluid medium. The relative position is found on the basis of the position of the at least partially transparent or translu- cent medium in the measuring chamber, when what is concerned is an optical in- strument operating on the principle of a spirit level. On one side of the measuring chamber (3) is a light source (13) and on the opposite side there is an optical mea- suring cell (21) or a flat, light-sensitive sensor. The light (17) transmitted from the light source through the at least partially transparent or translucent medium (8) is projected on the optical measuring cell (21) or the flat, light-sensitive sensor and the projection (23) is used to determine the rela- tive position of the object in relation to the horizontal.
Augustin Victor
Fischer Eduard
Macrae & Co.
Raytec Ag
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