Method for determining the flow of a fluid

Details Method for determining the flow of a fluid Method for determining the flow of a fluid

1987-04-07

1988-09-13

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

G01F 168

Patent

active

047700378

ABSTRACT:
The flow rate of a fluid, e.g. hot water, is determined by measuring the temperature of the fluid and the cooling time between two temperature thresholds of a previously heated probe. On the basis of these values, by way of a first interpolation based on a table comprising the cooling times of the probe as a function of different temperatures and flow rates, the cooling times at the temperature measured are calculated for all the flow rates recorded on the table, then, by way of a second interpolation between the values thus calculated which are higher and lower than the value measured, the flow rate corresponding to this value is calculated.

REFERENCES:
patent: 3498128 (1970-03-01), Calvet
patent: 3587318 (1971-06-01), Belugou
patent: 3719083 (1973-03-01), Morris et al.
patent: 4297881 (1981-10-01), Sasayama et al.
patent: 4402012 (1983-08-01), Knight
patent: 4501145 (1985-02-01), Boegli

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