LEVEL INDICATOR Russian patent published in 2000 - IPC

FIELD: geodetic instrumentation. SUBSTANCE: invention can be used in hydrostatic geodetic level determining both height position and inclination of inspected members and units of lengthened objects, for instance, rolling mills, blooming mills and so on. Level indicator includes case 1 housing light source 2 optically coupled to photodetector in the form of telecamera 3. Light source 2 comes in the form of one or several ring light sources inside which telecamera is positioned Diameters of ring light sources are calculated by formula Dn=K•(D_max/D_min)^n-1•H_min, where Dn is diameter of n-th ring light source; K is proportionality factor; Dmax is maximum diameter of image of ring light source in television frame; Dmin is minimum diameter of image of ring light source in television frame; Hmin is minimal measured level of liquid; n is ordinal number of ring light source. EFFECT: raised measurement precision, creation of additional capability to measure both level and inclination of vessel with reference to level of liquid. 1 dwg