FIELD: physics.
SUBSTANCE: air pressure measurement device is a barometer containing measuring unit and absolute reference scale with indication element, supplied additionally with a reduced scale with a scale factor equal to that of the absolute scale. Reduced scale zero is set at the absolute scale magnitude corresponding to the Standard Atmosphere pressure value at the altitude of barometer location. Additionally, the reduced scale is can be shifted against the absolute scale in the direction of indication element of the device.
EFFECT: enables all regional barometers to be brought to a single magnitude.
2 cl, 13 dwg
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