We present a technique to measure possible violations to Newton’s 1/r² law using a pair of matched Dynamic gravity Field Generators (DFGs) in a null-experiment and taking advantage of the exceptional sensitivity of modern suspended mass interferometric gravitational wave detectors. The correct placement of the DFGs, i.e. rotating symmetrical two-body masses, in proximity to one of the interferometer’s suspended test masses, allows future tests of composition independent non-Newtonian gravity beyond the present limits. We give our calculation and simulation results in context ofYukawa-like potentials in the 0.5 – 10 meter range.