Monthly Archives: June 2013

THE MARS SCIENCE LABORATORY (MSL) ENTRY, DESCENT AND LANDING INSTRUMENTATION (MEDLI): HARDWARE PERFORMANCE AND DATA RECONSTRUCTION

(excerpt from Page 8)

The MEADS pressure transducers are manufactured by Stellar Technologies, Inc. and are derivatives of off-the-shelf transducers. They are strain gage-type transducers with a range from 0 to 5 psia, outfitted at the manufacturer with flight electrical connectors, pressure input fittings, and mounting brackets. The transducers are not thermally compensated and they contain no electronics (electronics functions are performed by the SSE.) The transducers were calibrated with the SSE, as a subsystem, in combination with thermal/vacuum qualification at Langley. The calibration coefficients from this testing were then used to convert millivolts to pressures when the MEADS flight data was obtained. All of the hardware-related uncertainties were used in an error budget to ensure that the MEADS subsystem would meet the science objectives listed above.4

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