Accession Number:

AD0291694

Title:

FALLING-SPHERE EXPERIMENT FOR UPPER-AIR-DENSITY: INSTRUMENTATION DEVELOPMENTS

Descriptive Note:

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Report Date:

1962-04-01

Pagination or Media Count:

1.0

Abstract:

The continuing development of the instrumentation for the falling-sphere experi ent for upper-air density and temperature is described. A multiple-circuit cavity for the accelerometer, which permitted the elimination of the wire bobbin contact, was developed. A moving iron solenoid caging device resulted in a smaller accelerometer requiring less power than the previ us model. A new Attwoods machine permitting laboratory tests at 11 00 g was constructed. Electronic circuits were developed to replace the intervalometer motor. Circuits were also devised to permit long transit times and to provide discrimination between start and stop pulses. Four spheres and accelerometers for flight test were constructed. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE