Measuring and testing – Vibration – Resonance – frequency – or amplitude study
Patent
1995-10-25
1998-04-28
Williams, Hezron E.
Measuring and testing
Vibration
Resonance, frequency, or amplitude study
73662, 359180, 356349, 356351, H04B 1004, G02F 133, G02F 111
Patent
active
057447217
ABSTRACT:
An electronic control system that accurately maintains oscillation of an optical assembly at resonance. In the preferred embodiment, a signal control circuit delivers an input signal to an optical assembly. A resonance detector detects the difference in phase between the input signal and a feedback signal from the optical assembly. The phase difference is used to determine whether the optical assembly is at resonance. The signal control circuit is responsive to the resonance detector and modifies the frequency of the input signal to oscillate the optical assembly at its resonant frequency. The electronic control system can also maintain multiple optical assemblies at resonance.
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Hinds Instruments, Inc.
Miller Rose M.
Williams Hezron E.
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