ELECTROMAGNETIC MEASUREMENTS OF ACCELERATION

The most common types of accelerometers are examined to determine their suitability for measuring drag accelerations in the falling sphere air density experiment. Only those types having no mechanical friction can detect the low drag accelerations encountered at high altitudes. One type of frictionl...

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Bibliographische Detailangaben
1. Verfasser:	Gehmlich,D K
Format:	Report
Sprache:	eng
Schlagworte:	ACCELERATION ACCELEROMETERS DIAGRAMS DRAG ELECTROMAGNETIC PROPERTIES FRICTION HIGH ALTITUDE INSTRUMENTATION MEASUREMENT Radiofrequency Wave Propagation Rockets Test Facilities, Equipment and Methods
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Zusammenfassung:	The most common types of accelerometers are examined to determine their suitability for measuring drag accelerations in the falling sphere air density experiment. Only those types having no mechanical friction can detect the low drag accelerations encountered at high altitudes. One type of frictionless accelerometer, having electromagnetic suspension, is considered in some detail. The ultimate goal is the development of a three-axis accelerometer with a single, spherical proof-mass common to all three axes which can detect drag accelerations down to 0.00001 or 0.000001 g. (Author)