3DSEmulator (38.23 MB)
3DSEmulator
Source title: Direct Drive Precision Linear Actuator for Space Interferometry Mission (SIM) Siderostat Pointing - Direct, Drive, Precision, Linear, Actuator, for, Space, Interferometry, Mission, (SIM), Siderostat, Pointing, Abstract
, "SIM, PlanetQuest, will, exploit, the, classical, measuring, tool, of, astrometry, (interferometry), with, unprecedented, precision, to, make, dramatic, advances, in, many, areas, of, astronomy, and, astrophysics.", (1), In, order, to, achieve, the, required, pointing, precision, of, SIM, a, gimbaled, Siderostat, (SID), pointing, mechanism, with, coarse, and, fine, stage, actuators, is, being, employed., In, order, to, better, understand, the, coarse, pointing, accuracy, a, team, of, engineers, set, out, to, design, build, and, test, a, linear, ballscrew, actuator, that, can, perform, submicron, incremental, steps, for, 10, years, of, continuous, operation., Point, tracking, and, low, disturbance, requirements, lead, the, team, to, implement, a, ballscrew, actuator, with, a, direct, drive, DC, motor, and, a, piezo, brake., By, using, an, off, the, shelf, motor, Hall, effect, sensor, ballscrew, and, glass, scale, encoder, repeatable, 20, nm, incremental, steps, (actuator, resolution), over, a, 120, mm, range, was, achieved., The, results, exceed, expectations, by, a, factor, of, 50, times, and, prove, linear, nanometer, positioning, requires, no, gears, levers, or, hydraulic, converters. - sciencestage.com Engineering
http://sciencestage.com/d/5340562/direct-drive-precision-linear-actuator-for-space-interferometry-mission-(sim)-siderostat-pointing.html |
