Method for measuring the flow of a medium

Details Method for measuring the flow of a medium Method for measuring the flow of a medium

1982-09-03

1984-05-29

Woodiel, Donald O.

Measuring and testing

Simulating operating condition

Marine

73198, 364510, 364571, G01F 100, G01M 1500

Patent

active

044507151

ABSTRACT:
A method is proposed for the measurement of a medium, in particular of the air aspirated by an internal combustion engine, in a flow cross section and for correcting the flow rate value (q) furnished by a flow rate meter in the event of a pulsating flow. To this end, by measuring the pressure of the medium (p.sub.m) at a restriction and by comparing it with a pressure value (p.sub.s) for steady flow associated with the measured flow rate value (q), the pulsation amplitude (a) is determined and is multiplied via characteristic value memories for the flow rate values (q), in order to correct an average-value error and/or to correct the error in the event of reversed flow, with a correction value (k) in order to form a corrected flow rate value (Q).

REFERENCES:
patent: 4322970 (1982-04-01), Peter
patent: 4404846 (1983-09-01), Yamauchi et al.

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