A magnetostrictively driven tilt-mirror mount for image stabilization of NA
SA's Marshall Space Flight Center's Experimental Vector Magnetograph has be
en designed, built, and tested. A simple improvement in the mounting techni
que of the actuator resulted in a factor of 3 increase in the lowest resona
nt frequency of the device. The tilt-mirror device was built, and the lowes
t structural resonant frequency was experimentally found to be 603 Hz. (C)
1999 Optical Society of America.