HIGH-ACCURACY MEASUREMENTS WITH A GRAVITATIONAL VARIOMETER

Abstract

Data on the absolute magnitude of the second derivatives of the gravitational potential can be obtained only with gravity variometers. But a measurement accuracy of a fraction of an eotvos can be attained only in the dynamic mode and with recording systems that use new components. The authors developed two such systems for the E-60 variometer: a photoelectric system and a system making use of a charge-coupled device (CCD) video signal shaper. The article discusses the design and application of these systems.