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 Looking down the housing bore into a back-lit gyroscope. This was taken while the gyroscopes were being inserted into the quartz block.  Looking down the housing bore into a back-lit gyroscope. This was taken while the gyroscopes were being inserted into the quartz block.  Close-up of a back-lit gyroscope housing.    View of the coating mechanine used to to cover the gyroscope rotor with a very thin layer of superconducting material.  View of the commissioning mechanism used to test the flight gyroscopes.  Close up of a clear, uncoated quartz rotor. A poster of  einstein is shrunk and flipped in the clear material.  GP-B PI Francis Everitt and Co-PI Brad Parkinson show a gyroscope rotor in front of the spacecraft.    View of a backlit uncoated quartz rotor and half a housing on a purple background.  Image of an uncoated quartz rotor and half a housing on a sheet of diamond-plate steel.  The number four gyro is inspected under monochromatic light after it was removed from the SIA ( Science Instrument assembly). Aug. 2000.  Completed gyroscope rotor.  Close-up of a coated rotor in a gloved hand.  View of the Talyrond machine, used to check the roundness of the finished rotors.  A dummy quartz housing and an uncoated quartz rotor  sit next to a ball point pen for scale.  A dummy quartz housing and an uncoated quartz rotor  sit next to a ball point pen for scale.  The safely removed gyroscope 4, complete with housings, spin-up lines and readout cables.  Close-up shot of a single silicon crystal rotor.  close-up of rotors in the clean cabinet  close-up of rotors in the clean cabinet  close-up of rotors in the clean cabinet  View of a pair of gloved hands holding an encased flight gyroscope rotor  View of a pair of gloved hands holding an encased flight gyroscope rotor  Close-up of a rotor being polished on the lapping machine.

April, 1991  Close-up of a rotor being polished on the lapping machine.

April, 1991  This is the new ball walker assembly. The various sprockets and gears automatically position the quartz rotor, which can be seen in the aluminum disk. The disk is positioned underneath the sputtering head to ensure uniform coating of the rotor with niobium. This thin layer of niobium forms the superconducting surface of the gyroscope rotor.  Diagram showing the surface variations on a completed gyroscope rotor.  Talyrond machine and supporting equipment at MSFC (Marshall Space Flight Center).

October 13th, 1979  Talyrond machine at MSFC (Marshall Space Flight Center). A quartz housing is shown mounted for measurement. 

October 13th, 1979
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