NASA NTRS · 19670000459
Stable ac phase and amplitude comparator
Abstract
Stable ac phase and amplitude comparator detects excessive vehicle maneuvering or vibration. It has phase demodulation, low-pass filter, and multiple threshold-setting capability designed specifically for low drifts over a wide range of temperatures.
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Bruce, H. P.. 1967-11-01. Stable ac phase and amplitude comparator. https://ntrs.nasa.gov/citations/19670000459
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