| 摘要 |
A thermal type flowmeter comprising an elongated relatively small tubular probe, adapted to be inserted through a wall of a fluid containing vessel, contains an electrical resistance heater for heating the probe to a predetermined temperature. The electromotive force of a thermocouple, contained by the probe, indicates a voltage inversely related to the rate of heat dissipation from the probe to the surrounding fluid. With the temperature of the fluid being known or compensated for the rate of heat dissipation from the probe indicates the fluid flow rate.
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