| 摘要 |
The invention relates to a thermal type flow measurement apparatus, a heating element (13) is disposed in a fluid passage (42) and generates heat by a passage of a current through itself. A first thermal sensitive element (15,18) is disposed adjacent upstream of the heating element (13) in a direction of fluid flow to be measured. A second thermal sensitive element (16,17) is disposed adjacent downstream of the heating element (13) in the direction of fluid flow to be measured. The fluid passage (42) is provided with the heating element (13), the first thermal sensitive element (15,18), and the second thermal sensitive element (16,17). The fluid passage (42) has an asymmetric structure with respect to the direction of fluid flow.
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