Stra
pped to Mr. Baumgartner’s left arm of his space suite was an ALTITRACK sport altimeter boasting an analog face but utilizing the highest technical and durable digital components for accuracy that surpasses every other mechanical sport altimeter currently available.
It was Measurement Specialties’ MS5561C micro-pressure altimeter sensor that was packaged with the ALTITRACK sport altimeter to provide key altitude measurements. The MS5561C is an SMD-hybrid device that uses a three-wire serial interface for communication. The module dimensions of 4.75 mm x 4.25 mm and a height of only 1.6 mm allows for up-to-date SMD design.
This low power, low voltage device features automatic power down (ON/OFF) switching. The MS5561C was selected for this application due to its high accuracy, ability to withstand extreme cold, excellent negative g force resistance and low sensitivity to vibration caused by supersonic sound waves.
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