| 摘要 |
A lung diagnosis apparatus for measuring the flow, the flow rate, the respiratory air density and the molar mass of a living organism, includes a respiration tube through which respiratory air flows. On the outer surface of the respiration tube, on mutually opposite sides thereof, there are mounted two tube nozzles, of which the longitudinal axis thereof, or the nozzle axis, extends in an inclined manner relative to the longitudinal axis of the respiration tube, or tube axis. In the two tube nozzles, either a first ultrasound transmitter or a first ultrasound receiver is fixed. An electronic module, which actuates the first ultrasound transmitter and the first ultrasound receiver, evaluates their signals. A third tube nozzle and a fourth tube nozzle are arranged on mutually opposite sides of the respiration tube. The longitudinal axes of the third tube nozzle and the fourth tube nozzle define cross-nozzle axes, and extend orthogonally to the tube axis. In the third tube nozzle and the fourth tube nozzle, either a second ultrasound transmitter or a second ultrasound receiver are fixed.
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