Energy analyser

Energy analyser or energy analyzer may refer to:


 * A type of diagnostic probe used in the study of plasma physics
 * An electron energy analyzer, as used in Auger Electron Spectroscopy
 * Electrostatic analyzer, a device used in mass spectroscopy to allow the passage ions or electrons that have a given specific energy
 * Wattmeter, an instrument which measures the electrical power circulating in any electric circuit