On the accuracy of multi-exposure 3D-PTV

Abstract Multi-exposure (ME) 3D particle tracking velocimetry (3D-PTV) is a specific recording variant whereby more than two samples of the particle position are obtained to overcome some limitations of single-exposure double-frame recordings, such as accelerometry, pressure from PIV, or to further extend the dynamic velocity range. Compared to time-resolved (TR) systems, ME lowers system requirements in terms of laser power and camera frame rate. Although proved viable only recently using asymm