Make your own met measurements: build a digital barometer for about £10
Harrison, R. Giles
Major developments in miniature and inexpensive sensors have occurred in the past decade or so, often motivated by applications on mobile phones. Some of these devices are sufficiently accurate and stable to be suitable for use in meteorology. For example, extending the range of sensors carried on conventional meteorological radiosondes has been a recent focus of work in the Meteorology Department at Reading for measuring turbulence (Marlton et al., 2015), volcanic ash or liquid water (Airey et al., 2017). Furthermore, as part of the Physics of the Environment BSc degree, Reading students are taught how to use modern electronic sensors and make their own data-logging system for pressure (P), temperature (T) and relative humidity (U), which they evaluate against standard measurement methods (Harrison and Westbrook, 2016). As encouragement to look at these new and inexpensive technologies, a brief description is given here of how to use an integrated digital PTU sensor, without requiring any soldering skills. Indoors, it can operate as a simple digital barometer. </p>
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