| 摘要 |
The method and system includes a flow sensor including two hot wire gas flow sensing elements (32, 62) connected to identical, but independent electronic circuitry (20), positioned in parallel, transverse to gas flow (64) direction, and separated by a post (60) that serves to shadow the downstream element (32, 62). The flow sensors (32, 62) are dynamically compensated during respiratory therapy by use of digital to analog conversion, which provides for more accurate identification of flow direction and more accurate gas flow in volume measurements. The method and system incorporates the flow sensors (32, 62) in the y-piece of a breathing circuit.
|
