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Search Patents by Richard A. Allen

Patents listed here reflect only technologies patented from FY 2018-present. To view all of NIST's patented technologies, visit the NIST pages on the Federal Laboratory Consortium website.

Displaying 1 - 2 of 2

Sound Pressure Metrology Instrument And Determining Sound Pressure From Index Of Refraction

NIST Inventors

Richard A. Allen , Randall P Wagner , Benjamin Reschovsky and Akobuije Chijioke

A sound pressure metrology instrument determines sound pressure from index of refraction and includes: a light source that produces source light; the optical cavity that: receives an acoustic field from the sound source; receives the source light from the light source; produces acoustic-modified

Interferometric Microphone Calibrator And Comparison Calibrating A Microphone

NIST Inventors

Richard A. Allen and Randall P Wagner

A precision laser-based comparison calibration method for laboratory standard microphones that uses reference microphones calibrated by the pressure reciprocity method.

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