[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Torque Rods or Coils



Question about Satellite Torque Rods versus Coils.

It seems to me that what counts in torquing a spacecraft is ampere-turns.
Whether that is in an open coil or wound around a rod of unobtainium are
secondary considerations of size, fit, location and other second order
effects.

It seems the coupling to the earths magnetic field is limited by the
permeability of free space anyway, so there is little advantage to
concentrating the flux in a high permeabiliity open ended rod of
unobtainium except maybe for ease of fitting/mounting..?

Can someone clarify this?
Thanks

de WB4APR@amsat.org, Bob

PCsat WEB  page     http://www.ew.usna.edu/~bruninga/pcsat.html
ISS-APRS FAQ:       http://www.ew.usna.edu/~bruninga/iss-faq.html
CUBESAT Designs     http://www.ew.usna.edu/~bruninga/cubesat.html
APRS LIVE pages     http://www.ew.usna.edu/~bruninga/aprs.html
APRS SATELLITES     http://www.ew.usna.edu/~bruninga/astars.html
MIM/Mic-E/Mic-Lite  http://www.toad.net/~wclement/bruninga/mic-lite.html

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home