CONNECTION OF DIGITAL HYDROSTATIC NIVELLING INSTRUMENT

• Main Authors: MANKOVICKY STEFAN ,CS, BUZASI JAN ,CS, ONDRIS LUBOMIR CSC.,CS, RUSINA VIKTOR ,CS
• Format: Patent
• Language: English
• Published: 14.08.1990
• Edition: 5
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The connection of a numerical hydrostatic levelling instrument is designated for measuring minor n-points height variances with major accuracy. The application of such a connection consists in the outputs of the readers of a liquid level height being connected to the inputs of the contact indication circuits in respect of needle electrodes and the liquid, the outputs of which are connected to individual inputs of the n-input circuit of the logical total and also to one of the inputs the of two-input stop logs. The n-input circuit output of the logical total is connected to one input of the two-input starting stop log and an output of the impulse generator is connected to the second input of the stop log. The output of the starting stop log is interconnected with the second outputs of all two-input stop logs. The outputs of these stop logs are connected to the inputs of the impulse readers. The impulse reader outputs are interconnected with display inputs. The controlling circuit of the instrument is connected by its inputs to the outputs of contact indication circuits of the needle electrodes with the liquid, and it is connected by its outputs with the inputs generator step-by-step (stepping) impulses. The connection of the numerical hydrostatic levelling instrument can be used wherever a mutual superelevation of several points, even substantially remote from one another, is necessary to be measured with greater accuracy, especially in the field of nuclear energy during long-term measurements of changes of an objects inclination, in the field of energetic engineering and construction.