A spirit level

Details A spirit level A spirit level

G - Physics

01

C

G01C 9/32 (2006.01) G01C 9/36 (2006.01)

Patent

CA 2683576

A spirit level (1) comprises a planar base (14) for resting, in use, on a surface whose level is to be determined, and levelling means (27) comprising a vial (41) filled with sufficient liquid that an air bubble (47) is formed within the vial (41). The spirit level (1) comprises indicia (43, 45) relative to which the bubble (47) moves as the orientation of the spirit level (1) is altered so as to indicate the orientation of the spirit level. Optical means (29) is provided on the spirit level (1) to provide an image indicative of the position of the bubble (47) relative to the indicia (43, 45).

L'invention porte sur un niveau à bulle (1) comprenant une base plane (14) se posant sur la surface dont on veut déterminer l'inclinaison, et un moyen de mesure du niveau (27) comprenant une ampoule (41) remplie de suffisament de liquide pour qu'une bulle d'air puisse s'y former (41). Le niveau à bulle (1) porte des repères (43, 45) par rapport auxquels la bulle se déplace lorsque l'inclinaison du niveau varie, ce qui en indique l'inclinaison. Un moyen optique (29) solidaire du niveau (1) fournit une image de la position de la bulle (47) par rapport aux repères (43, 45).

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