| 摘要 |
A data acquisition device used to measure fluid level includes a float coupled to a measuring tape. The float includes a body with a first surface defining a first cross-sectional area and a second surface defining a second cross-sectional area; the second cross-sectional area being smaller than the first. A tube extends from the device to a location above the fluid level. The float is positioned within the tube in an orientation wherein the first surface is parallel to the axis of the tube. The float is then lowered to a point outside the tube and pivoted such that the first surface is transverse to the axis of the tube. The float is then lowered to the fluid surface allowing the data acquisition device to record the fluid level.
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