Steward, B.L. , Gysling, D. and Oftelie, J. 2026. Gas Void Fraction Monitoring with Speed of Sound Measurements for Hydraulic System Aeration Monitoring. International Journal of Fluid Power. 27, 02 (Apr. 2026), 435–452. DOI:https://doi.org/10.13052/ijfp1439-9776.2725.