| 摘要 |
A flow detection device for detecting a flow characteristic of a fluid within a pipe is disclosed. The flow detection device includes a first channel portion that defines a first channel with an upstream aperture. The fluid can flow into the first channel through the upstream aperture. The device also includes a flow sensor disposed in the first channel, and the flow sensor detects the flow characteristic of the fluid. Furthermore, the device includes a flow straightening member that is provided upstream of the first channel. The upstream aperture is hidden by the flow straightening member as viewed looking downstream along an axis of the first channel portion. Also, the fluid flows from substantially the entire circumference of the flow straightening member into the first channel.
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