We presented a digital envelope detection filter (EDF) for blood pressure measurement. This method was applied to volume oscillometric signals which were acquired from air-filled occlusive finger cuff. In case of using the EDF, we could reduce difference error and standard deviation by 30-40%.
A 1-Hz hypocycloidal pinch (HCP) pumped laser was operated at 1 kJ input energy. The time integrated continuum spectrum of the pump light approximated that of a 15,000 K blackbody for the wavelength range above 250 nm. The pump emission was found to be stable at 1 Hz operation. The overall efficiency of the system was found to be 0.01% for single shot operation of pumping blue-green and near ultraviolet ...
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