%0 Journal Article %A Wei, Z. %T Pushing the vibrator envelope: extending low and high frequency limits %D 2008 %J First Break, %V 26 %N 3 %@ 1365-2397 %R https://doi.org/10.3997/1365-2397.2008002 %I European Association of Geoscientists & Engineers, %X Abstract At low frequencies the energy produced from a seismic vibrator is constrained by several mechanical and hydraulic limitations. These include reaction mass stroke, hydraulic pump flow, pump response time, servo valve stroke, accumulator size, engine horsepower, peak-decoupling force, harmonic distortion, and the vehicle chassis isolation. We have developed a model that can simulate seismic vibrator dynamics to evaluate the impact of these parameters on the vibrator fundamental force envelope at low frequencies. %U https://www.earthdoc.org/content/journals/10.3997/1365-2397.2008002