Abstract

During field tests in 1980, the prototype of the LaCoste and Romberg straight-line gravimeter (ser. no. SL-1) generally produced gravity values intermediate between those of two comparison 'S' meters (ser. nos. S-56 and S-41). Correlation analysis shows that the data from SL-1 with no cross-coupling correction are 15 percent smoother even in rough weather than the corrected data from either S meter. When corrections to the cross-coupling effects are applied through postcruise correlation techniques, the curvature (degree of smoothness) of the respective data agrees to within 2 percent for each meter. These results verify that cross-coupling errors have been virtually eliminated in the new gravimeter.

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