01688nam 2200469Ia 450 991069727010332120230902161938.0(CKB)5470000002386219(OCoLC)645495213(EXLCZ)99547000000238621920100701d1994 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierAcoustic calibration apparatus for calibrating plethysmographic acoustic pressure sensors[electronic resource] /inventors, Allan J. Zuckerwar, David C. Davis[Redacted ed.][Washington, DC] :[National Aeronautics and Space Administration],[1994]1 online resource illustrationsNASA case ;no. LAR 14977-1Title from PDF title screen (NASA, viewed June 23, 2010).NASA case ;LAR-14977-1.Acoustic impedancenasatAcoustic measurementnasatPlethysmographynasatPressure measurementnasatPressure sensorsnasatAcoustic impedance.Acoustic measurement.Plethysmography.Pressure measurement.Pressure sensors.Zuckerwar Allan J1407636Davis David C. L63361United States.National Aeronautics and Space Administration.GPOGPOBOOK9910697270103321Acoustic calibration apparatus for calibrating plethysmographic acoustic pressure sensors3489619UNINA