A Highly Sensitive Differential Manometer
- 1 August 1948
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 19 (8) , 502-506
- https://doi.org/10.1063/1.1741312
Abstract
This paper describes the construction and performance of a differential manometer with a sensitivity of 0.001 mm of mercury over the range of absolute pressures from 1 mm of mercury to 1 atmosphere. The sensitive element employed is a pair of nesting diaphragms, displacement of which is measured by the resistive unbalance of an unbonded electrical displacement gauge to which the diaphragms are attached. Calibrations are presented for the sensitivity at 1‐ and 10‐ma gauge current. Data are presented which indicate the operating characteristics under varying conditions of absolute pressure, temperature, gauge current, and geometric orientation.Keywords
This publication has 1 reference indexed in Scilit:
- Sensitive aneroid diaphragm capsule with no deflection above a selected pressureJournal of Research of the National Bureau of Standards, 1940