HYDROSTATIC HYDRAULIC LEVELLING APPARATUS FOR EXACT MEASURING DIFFERENT HEIGHTS

摘要

In the present invention there is disclosed a hydraulic equipment for measuring change in a liquid medium (5) level heights or according to a stable level (h) height of the liquid medium (5) the change in height of a sight point (1) in a system of hydrostatic-hydraulic levelling. The invented hydraulic equipment (2) employs for measuring the specific pressure of the liquid medium (5) column to a sight surface (x) formed by a mercury level (r) in a first vessel (16) of the hydraulic equipment (2) being interconnected through the mediation of a siphon with a mercury (r) column (8) in the hydraulic equipment (2) second vessel (17) of height (v) and area (y) displaced to equilibrium position by the liquid medium (5). Movement of the hydraulic equipment (2) with respect to the sight surface (x) expresses itself in movement the mercury column (8) level balancing the liquid medium (5). A float (9) situated on the mercury (r) column (8) level (y) in the second vessel is fixedly coupled with a movable or stationary part of a position sensor (10). This sensor detects change in position of the sight point (1) in the hydrostatic-hydraulic levelling system with respect to the hydraulic equipment (2) and position sensor (10) thereof in a reference point (7).