Introduction
The Model 1020 infrared plethysmograph monitors
pulsatile blood flow changes in fingers, toes, ear,
forehead, and other locations. You attach the Model 1020
with the supplied Velcro™ strap or with electrode-type
adhesive collars.
The Model 1020 will record through the finger nail, and
in the direct coupled mode, it can even measure blood
flow changes due to blushing! Matched optics reduce the
effects of ambient light and subject motion to improve
signal output.
Applications for the Model 1020
To monitor finger pulse with standard model:
Attach Model 1020 firmly but not tightly to the
end of a finger with supplied Velcro™ strap;
Loosen strap if it feels tight to subject, or if finger
becomes pale or begins turning blue.
Touch subject's fingers to your cheek. If they feel
cold the vasculature is probably constricted and
output from Model 1020 transducer will be very
low. Loosen the Velcro™ strip to restore an
adequate signal as shown below.
