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The Smoke Aerosol Measurement Experiment (SAME), designed, manufactured and operated by ZIN Technologies under contract with the NASA Glenn Research Center, has been assembled on board the International Space Station 9/12/2007 The Smoke Aerosol Measurement Experiment (SAME) has been assembled on board the International Space Station and is currently testing the capabilities of the Space Transportation System (STS) smoke detectors while also providing measurements of the smoke that will be used in the design of the systems that protect future spacecraft. SAME was designed to determine the characteristics of smokes created in a microgravity environment, since previous studies showed that it was fundamentally different from the smokes created on Earth because of the absence of gravity, which tends to drive the smoke particulates away from the heat source and the other particles of smoke. It contains both of the smoke detectors currently in use by NASA, and an array of custom and Commercial Off The Shelf (COTS) devices that have been specially modified for use in spaceflight. The experiment was assembled into the Microgravity Science Glovebox (MSG) by Flight Engineer Clay Anderson during Saturday Science sessions on September 1st and 8th and has just completed the first six samples of a thirty sample set. SAME uses a specially designed heater system to heat the sample material just to the smoke point, at which the material gives off smoke but does not combust. This process is called pyrolysis. Once created, the smoke aerosol is drawn into a piston driven chamber and stored for a predetermined period of time to simulate the time it would take for that smoke to be transferred to a detector. Once the smoke is dispensed, the system sends real time data to the ground to provide near real time analysis and feedback. While the crew assembled the experiment and it must periodically be re-supplied by them, all operations are controlled from the ground at the TeleScience Center (TSC) at the Glenn Research Center. The system contains a number of innovative designs and materials, including a computer controller dilution system capable of accurate, particle friendly dilutions from 3:1 to 100:1 and the use of nickel plated rapid prototype materials for the final flight parts. It weighs about 100 pounds and was shipped up to the ISS in roughly 10 pieces that were assembled. The experiment was designed, manufactured and is being operated by ZIN Technologies under contract with the NASA Glenn Research Center in Cleveland, Ohio. |
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