|
  |
|
About RF Cafe
Copyright: 1996 - 2024 Web BSEE - KB3UON RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived... All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowl My Hobby Website: |
 |
|
Tilting TIROS II |
|
See all articles from Popular Electronics. Tilting TIROS II Magnetic "hand" tilts space satellite Spherical "cage" designed to produce magnetic fields resembling those of the earth was used in pre-launching tests of Tiros II. Here, Warren P. Manger, of the RCA Astro-Electronics Division, takes reading of magnetic effect within the wired "cage," preparatory to rotating the satellite on its mount for study of the orientation system.
Magnetic orientation system being tested at RCA's Space Center in Princeton, NJ. Lights above and around the satellite are used to check operation of solar cells which surround satellite. Developed by the Radio Corporation of America, the new orientation technique uses the effect of the earth's magnetic field to alter the "attitude" of the satellite upon command - without the need for special propulsion devices. This technique was the outcome of studies by RCA and government scientists of an unexpected gradual shift in the attitude of the first Tiros satellite under the influence of the magnetic field surrounding the earth. In the first Tiros, which returned nearly 23,000 useful TV cloud pictures to earth following its launching last April, these magnetic forces caused the satellite to tilt gradually away from the predicted position of its axis in space. In Tiros II, the forces are being harnessed by a controllable magnetic field generated around the satellite itself by wire coils on the lower sides of the vehicle. Interacting with the earth's magnetic field, this controllable field gives ground observers an invisible "hand" to tilt the satellite on command, in order to obtain a more advantageous angle. Equipped with the orientation-control system and with newly developed infrared instruments to measure the emission and reflection of solar heat by the earth and its atmosphere, Tiros II represents the second step in the experimental weather satellite program being conducted by the National Aeronautics and Space Administration to study the feasibility of regular satellite weather operations. Among the major features common to both the Tiros I and II satellites are electronic clocks that control the timing of cameras, tape recorders, and infrared systems during each orbit; more than 9000 solar cells on the top and sides of the satellite to convert electrical energy for operation of the electronic systems; "yo-yo" weights which slow the satellite's spin from 120 rpm to 12 rpm as it enters orbit; and five pairs of solid-fuel spin-up rockets to restore spin momentum.
Wide-angled television camera on Tiros II is checked
by Sidney Sternberg, and Ralph Jordan at the RCA Space Center.
Tiros II, mounted on its side in this photo, is identical in external
appearance to Tiros I. Posted 11/1/2012
|
|
 |
 |
 |
|
Please Support RF Cafe by purchasing my ridiculously low−priced products, all of which I created.
These Are Available for Free |