How does the respiration sensor work and what kind of values does it measure?

The NeXus respiration (RSP) sensor uses a magnet with a hall sensor (magnetic field sensor) to measure the stretching of the band.

The value of the signal that comes from the RSP sensor is a relative value. The signal contains the raw data of the sensor and is related to the expansion of the chest belt.

Every time you place the chest belt, you place it differently. That is why the absolute values are different. The RSP measurement is not a measurement for volume of inhalation/exhalation. For example: with bigger patients the difference of the signal will be relative small because the circumference of the body changes relatively slow.
As the RSP value is a relative value, you cannot compare these values with RSP values of other sessions or other clients.



Creation date: 2/27/2017 3:38 PM     Updated: 6/7/2017 2:26 PM