Thought Technology Ltd. Procomp Infiniti, Руководство по оборудованию

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The sensor consists mainly of a long Velcro strap that is stretched
around the client's chest or abdomen. When placing the sensor on
the client, ask for a full expiration and quickly fasten the strap with
just a small amount of tension at that time. The sensor should not
be loose when the client breathes out completely. The sensor's
rubber tube and circuit box should be placed in the front, as
illustrated. The sensor can be placed on top of clothing, if not too
bulky. Note: The tube is made of natural rubber and some people
may be allergic to rubber. Please verify your client’s allergic
conditions before using the respiration sensor. When using two
sensors, strap one around the client’s chest, just above the
breasts, and one at the level of the navel. Avoid storing the
sensor with the tubing stretched as this will shorten its usable life.
Typical Signal
There are many breathing patterns that can be recognized, but there is actually no typical
waveform for the respiration signal. Commonly, there is a fast rise that slows near the top of the
breath and this is followed by a fast fall that slows near the end of the breath. The breathing
pattern will alter itself as the person focuses on a task, talks or falls asleep.
ProComp Infiniti Hardware Manual 33