FIELD: experimental gas dynamics.
SUBSTANCE: reciprocal piston is placed inside air-tight working cylinder (working chamber) in such a manner that two working cavities are formed above and beneath the piston. Cavities communicates with each other through slit channel. Instant values of current values of pressure P, gas temperature T, geometrical volume V of working cavity and through cross-section area f of slit channel are measured in small equal time gaps Δτ. Mass consumption M of gas is calculated from measured values P, V, T and Δτ. Instant consumption factor α is calculated from relation which includes current values of area f and variable pressure P at the entrance and exit of slit channel for any preset measurement.
EFFECT: improved precision of measurement.
1 dwg
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