@inproceedings{f13e994c9836452f93a7bcc0a2bc5b77,
title = "Evolution of an actuator family",
abstract = "VTT Automation got involved in spaceflight engineering in the mid-1980's and helped in the formation of the Finnish space industry. The first design was a worm gear mechanism that opened an auxiliary solar panel for the ASPERA instrument on board the Soviet Phobos spacecraft. Next came the Solar Wind ANisotropy (sWAN), including a 2-axis scanning mechanism, on board ESA's Solar and Heliospheric Observatory (SOHO). Two SWAN sensor units cover a field of view of nearly 4 pi VTT Automation developed scanning mechanisms for two instruments on board NASA's Cassini spacecraft, namely the ACT actuator for the CAPS instrument and the TT turntable for the MIMI/LEMMS instrument. The actuator concept was further developed in ESA's MPRA project. A version of ACT actuator is currently being manufactured for NASA's Two Wide Angle Imaging Neutral Atom Spectrometers (TWINS) mission.",
author = "Paul Stigell and Pekka Kyrenius and Tomi Ylikorpi and Kai Viherkanto",
year = "2000",
language = "English",
series = "NASA Conference Publication (CP)",
number = "2000-209895",
pages = "251 -- 263",
booktitle = "34th Aerospace Mechanisms Symposium",
note = "34th Aerospace Mechanisms Symposium ; Conference date: 10-05-2000 Through 12-05-2000",
}