| 摘要 |
An electrically calibrated air gauging apparatus for measuring or comparing dimensions is disclosed. The apparatus is calibrated with only electrical adjustments and does not require the difficult pneumatic adjustments associated with prior devices. A monolithic, semiconductor pressure transducer is employed to sense the air pressure in the probe line. The apparatus includes a linear mode which provides an extended range of display readings proportional to the deviation of an unknown dimension from a known dimension.
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