Optimal mode of operation of a capacitive transducer in gravitational radiation detectors

The capacitive and other linear transducers that are known provide us with information on the instantaneous coordinate of the mechanical oscillator. The quantum theory of measurements predicts a precision limit of continuous measurement of the coordinate. When the transducer is working in the pulse mode, the instantaneous coordinate of the oscillator can be measured for the time t$_m$ ≪ 1/ ω$_M$ with an error √(ω $_M$t$_m$)times better than for the continuous mode. Consequently, the gravitational detector sensitivity increases. The outer effect on the antenna in this case can be found by measuring the instantaneous coordinate after a time multiple to the period of the antenna oscillations(2π/ ω$_M$).