Which type of gauge is used to measure microns in a vacuum?

An electronic vacuum gauge is the appropriate tool for measuring microns in a vacuum because it is designed to provide precise and reliable measurements at very low pressure levels, such as those found in a vacuum environment. These gauges often utilize electronic sensors that can detect minute changes in pressure, allowing for accurate readings down to microns.

The use of electronic components enables more sophisticated data processing, which enhances the gauge's sensitivity and accuracy compared to other types of gauges. While analog vacuum gauges can sometimes be used for pressure readings in vacuum applications, they typically lack the precision required for micron-level measurements. Differential pressure gauges are more suited to measuring pressure differences rather than absolute vacuum levels, and a barometer is not applicable as it is designed to measure atmospheric pressure rather than vacuum conditions.