Diaphragm Type Air-Micrometer : 1st Report, Static Characteristics

抄録

The authors have worked out a new air-micrometer having an air chamber which is partitioned from wall to wall with a corrugated diaphragm and in the centre of which a small aperture is bored to serve as inlet or outlet throttle depending on the direction of air flow. The characteristics of such an air-micrometer will represent the combination of the characteristics of an ordinary air-micrometer and deflecting characteristics of the diaphragm. If a large magniflcation is provided for the air-micrometer, the non-linearity of its characteristic may be ignored. As a results, there will be a linear characteristic over the wide range of measurement.