| 摘要 |
<p>A respiration sensor capable of more accurately reading the circumferential length of a subject, and a variation in the expansion and contraction of the circumference of a body by respiration. The respiration sensor comprises an extensible long member with a hollow hole for attaching the sensor to the subject, a non-extensible wire inserted through the hollow hole of the extensible long member, an extensible section connected to the wire, and a sensor section capable of sensing the movement of the extensible section.</p> |
