A High Resolution, Hot-Wire Micro-Flow Meter with Various Applications

Author:

Bardeau H.1,Druilhet A.2

Affiliation:

1. Directeur de recherches CNRS, UPS - Laboratoire d'aérologie, 118 Rte de Narbonne, Toulouse

2. Maitre de Conferences, UPS - Laboratoire d'aérologie, 118 Rte de Narbonne, Toulouse

Abstract

We have perfected a very sensitive, high-resolution electronic flow-meter. The module we have been working on has a cut-off frequency of 200 Hz. It works in a range of pressure-difference from 1 to 100 pascals, with a resolution of 0.1 pascal. The device has enabled us to carry out a series of ground measurements tests of the air's dynamic pressure and of the structure ratio of this parameter, as well as differential pressure measurements. Used as a very sensitive variometer, it has permitted measurements in altitude by means of a meteorological plane specially equipped for turbulence measurements. It can also be operational in a captive balloon or in a glider.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Geophysics,Mechanics of Materials,Acoustics and Ultrasonics,Building and Construction,Civil and Structural Engineering

Reference6 articles.

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