Ventilation, measuring chain

The time difference (delay) between the measured quantity and the measurement result is called the inertial error. A definition- is the error due to iner tia (mechanical, thermal, etc.) of the parts of a measuring instrument. In ventilation equipment the critical component in the measuring chain, from the dynamic point of view, is often the sensor or the measuring transducer (probe). 

CFM—Cubic feet per minute, a unit measuring air flow when evacuating ventilation systems. Chain of command—A series of command, control, executive, or management positions in hierarchical order of authority. 

Measuring or parameter chain in the case of a ventilated patient. 

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