Name:
May 12, 1995
Instructor: C. Davila
, electrode-electrolyte
interface, 
, leads having parasitic capacitance 
, and
load resistance, 
. Here, represents a
non-polarizable electrode model ( 
is the interface resistance and
is the skin resistance, there is no capacitance). Find an
expression for 
in terms of 
and . Then sketch the Bode plot of
for 
. Assume that 
and 
. (10 points)
curve is obtained after a thermodilution
experiment. Determine, as accurately as possible the cardiac output in
liters/minute. Assume that 
and 
:
in an Doppler ultrasonic flow-probe depicted below. Assume there is no
direct-path
interference present (this simplifies the arithmetic compared to what
we did in lecture). Derive formulas for 
and
. After and
have been converted into digital signals, describe how
one would compute , (hint: assume your software is capable
of computing FFT's).
). Assume you have at your disposal a water-sealed spirometer, a
pressure transducer, three differentiators, and a device for doing
division (inputs: x, y, output: x/y).
Sketch a block diagram of your design.