NASA NTRS · 19880000162
Data-Acquisition System For Rotor Vibrations
Abstract
New system trades hardware for software to reduce cost. Composite train of interspersed blade-detection pulses produced by gates at four probe ports on data-acquisition board. Pulses latch count from high-speed wraparound clock counter and initiate writing of count onto current address of memory. Result: time corresponding to each blade passage stamped into memory.
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Posta, Stephen J., Brown, Gerald V.. 1988-03-01. Data-Acquisition System For Rotor Vibrations. https://ntrs.nasa.gov/citations/19880000162
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