•High frequency modulation of expected signal(reduction of"1/f" electronic and mechanical noise; satellite designed for rapid spin, easy attitude
stabilization).
•Mechanical suspensions ensure electric
grounding, hence eliminate charging effects passively (low
stiffness ensured by
weightlessness Þ
high sensitivity)
•Instrument inherently differential: test bodies coupled by the read out and by very weak suspensions like in an ordinary beam balance for higher sensitivity to
differential forces