Enhancing time-suspension sequences for the measurement of weak perturbations

► Time-suspension sequences remove background interactions for high-resolution measurements. ► Performance compromised by temporal inhomogeneity of averaging and residual error terms. ► Constant-power operation removes temporal effects, combined 2nd averaging methods the latter. ► Performance optima are provided from both experiment and numerical simulations. ► Provides expanded toolbox for measurement of synchronously switched weak perturbations.