Previous Article
Next Article
Table of Contents

A Successful Comparison of Two Wavefront Sensors (1Dec92)
(from NSO, NOAO Newsletter No. 32, 1 December 1992)

In our effort to characterize wavefront sensors for solar applications,
we have compared, using real data, two fundamentally different
approaches at the NSO/SP Vacuum Tower Telescope.  This work represents
the only known effort to compare directly the performance of different
wavefront sensors simultaneously, in real time. The comparison was
between the traditional Shack-Hartmann wavefront sensor and the Focal
Volume Technique (FVT) for recovering wavefront phase. The analysis
shows that the two wavefront sensors do produce comparable wavefront
measurement values, and underlines the importance of specifying
accurately the boundary condition for the FVT approach.

Sergio Restaino, Richard Radick, Carsten Denker

Previous Article
Next Article
Table of Contents