The BioNomadix Respiration Transducer records respiratory effort. The transducer connects to a BioNomadix RSP transmitter (BN-RSP2 or BN-RSPEC) to measure changes in thoracic or abdominal circumference that occur as a subject breathes. The design presents minimal resistance to movement and is extremely unobtrusive. Due to its novel construction, the RSP transducer can measure arbitrarily slow to very fast respiration patterns with no loss in signal amplitude, while maintaining excellent linearity and minimal hysteresis. The conductance of the gauge is linear with applied linear stretch; for very small linear stretch, the conductance versus stretch is quite linear.
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