GRAVIMETER Russian patent published in 1995 - IPC

FIELD: geophysics instruments. SUBSTANCE: timer that can be programmed is intended for storing time and generation of interrupt signals for microprocessor. This timer and device for information input are connected to microprocessor control unit. Memory of microprocessor holds parameters that are necessary for computing a correlation for taking into account moon and sun variations of gravity field. Microprocessor output is connected to input of indication unit and to digital-to-analog converter which translates digital code into representation that is easy to record. Value of correlation is stored in recording unit with inverse sign for compensation of influence of moon and sun gravity. EFFECT: increased precision of measuring due to exclusion of errors caused by variations of moon and sun gravity field. 1 dwg