Title :
Magnitude and phase vs. frequency distortion compensation for an esophageal balloon pleural pressure measurement system
Author :
Downing, Willis G., Jr.
Author_Institution :
Dept. of Electr. & Comput. Eng., California State Univ., Northridge, CA, USA
Abstract :
Methods of active filter design described by Kerwin (1970), Thomas (1971), and Tow (1971) were used in designing the second-order lead compensation. To compensate for possible high frequency instabilities, a first order Butterworth active lag filter was added to the head compensation. The result was that the electronically compensated esophageal balloon system was flat in magnitude (output/output) vs. frequency from 0 to 30 Hz and the phase shift over this frequency range was linear with frequency
Keywords :
Butterworth filters; active filters; biomechanics; biomedical electronics; biomedical measurement; lung; pressure measurement; active filter design methods; electronically compensated esophageal balloon system; esophageal balloon pleural pressure measurement system; first order Butterworth active lag filter; frequency distortion compensation; head compensation; high frequency instabilities; phase shift; Atmosphere; Atmospheric measurements; Electrical resistance measurement; Esophagus; Frequency; Lungs; Phase distortion; Plastics; Pressure measurement; Testing;
Conference_Titel :
WESCON/94. Idea/Microelectronics. Conference Record
Conference_Location :
Anaheim , CA
Print_ISBN :
0-7803-9992-7
DOI :
10.1109/WESCON.1994.403560
