| 摘要 |
An apparatus for the measurement of fluid flow through a conduit comprises at least one thermally sensitive element capable of producing a measurement value related to temperature located within the conduit. This element is exposed to the flow of fluid through the conduit. A second thermally sensitive element is capable of producing a reference value related to temperature of fluid ambient to the conduit. The reference value is substantially unaffected by heat generated by the second thermally sensitive element. An electrical circuit is provided for determining the measurement and reference values and for using the same to produce an indication which substantially eliminates errors due to changes in the ambient temperature and caused by velocity cooling of the first thermally sensitive element. This indication is representative of fluid flow through the conduit.
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