Table 3 The different types of cycles and their corresponding characteristics
From: Performances of domiciliary ventilators compared by using a parametric procedure
Name | Symbol | N T | δ h | δ l | |
|---|---|---|---|---|---|
Non-triggered cycle | NT | 0 | — | — | |
Synchronous cycle | SC | 1 | ≤200 ms | |δ l|≤300 ms | |
Cycle with advanced pressure release | Tapr | 1 | ≤200 ms | <−300 ms | |
Cycle with delayed pressure release | Tdpr | 1 | ≤200 ms | >+300 ms | |
Self-triggered cycle | ST | 1 | >τ i | — | |
Backup cycle | Bck | 1 | — | — | \(\tau _{\text {tot}} = \frac {1}{f_{\text {Bck}}}\) |
Double-triggered cycle | DT | ≥2 | — | — |