Automatic Tube Compensation is "a feature that allows the operator to enter the size of the patient's endotracheal tube & have the ventilator calculate the tubes resistance & then generate just enough pressure to compensate for the added resistive load" (Chatburn, R. 2012).
Chatburn, R. (2012). Standardized Vocabulary for Mechanical Ventilation. Mandu Press.
*Note- this reference is available under the link free mechanical ventilation handouts.