Data interface for closed-loop accelerometer

摘要

A closed-loop accelerometer (10) has a rebalance loop (14) controlled by a first clock and the output of which loop is supplied to a utilization circuit (24) controlled by a second clock (22). The loop and the utilization circuit are coupled by a converter which converts the output of the loop into a stream of pulses distributed over one accelerometer rebalance-cycle period, these pulses being sampled over the period of the second clock and counted to produce a count which is delivered to the utilization circuit (24). There are means (29) responsive to the output of the second clock (22) for gating the pulse count to the utilization circuit (24).