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Overview

A Pitot-static Tube is a flow velocity meter which is capable of measuring fluid velocities as a localized point (as opposed to an averaged velocity across a larger section). A schematic of a Pitot tube is shown below.

Typical Pitot Static Tube

The Pitot tube yields a pressure measurement which is typically measured with a differential manometer. The fluid velocity can obtained from the pressure value in accordance with incompressible (or compressble) fluid theory.

Pros and Cons

  • Pros:
  - Simple construction.
  - Relatively inexpensive.
  - Almost no calibration required.
  - Induces minimal pressure drops in the flow.
  - Requires only a few access holes into the flow conduit; no wide open cut needed.
  • Cons:
  - Accuracy and spatial resolution may not be high enough for some applications.
  - Tube must be aligned with the flow velocity to obtain good results. Any misalignment in yaw should not exceed ±5°.
Glossary
Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.