A STUDY OF THE LCR GRAVIMETER WITH VRL 8350 FEEDBACK SYSTEM

So far, more than ten LCR gravimeters, both model G and D, have been transformed with feedback system VRL 8350 (1985) according to the Harrison-Sato method (1983). We discuss here the linearity of the LCR meter with the feedback system. Moreover, the eigen period, damping and sensitivity with respect to the longitudinal level have been investigated under various conditions, with and without feedback.