| 摘要 |
Method and device for measuring the variation WV of the volume V of a body having an axis, transversely to which it can undergo expansion and/or contraction. According to the invention, the lengths li and length variations Wi of a plurality of sections Si, of area Ai, are measured, and a coefficient ki is determined for each section Si, such that: ki = Ai DIVIDED li<2> the expression WAi = 2ki.li. Wli is integrated along the axis of the said body in order to obtain the variation in volume WV. Plethysmography. <IMAGE>
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