GRAVIMETER Russian patent published in 1999 - IPC

FIELD: measurement of gravitational field of mobile objects sensitive to change of ambient temperature. SUBSTANCE: propose gravimeter has case, platform in gimbal suspension with gyroscopic and gravimetric sensitive elements oriented along one axis. Gravimetric sensitive element is encapsulated in two coaxial thermostats. Each thermostat is composed of internal shell made from heat conductive material with heater and temperature sensitive element put on its outer surface and of external heat insulation shell - Dewar flask. Platform is fabricated in the form of ring to which two heat exchangers with ribs facing internal space of ring are made fast. This space communicates through holes in ring with internal space of case. Internal shell of first thermostat is connected by means heat resistant rods put through holes in cover of Dewar flask to internal shell of second thermostat which in its turn is connected from opposite side with the use of heat resistant rods put through holes in cover of second Dewar flask to surface of heat exchanger free from ribs. EFFECT: increased accuracy of gravimeter within wide measurement range of ambient temperatures, decreased energy consumption thanks to reduced energy consumption by heating system of gravimeter. 2 dwg