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Название: Applications of Lock-In Amplifiers in Optics
Автор: Gerhard Kloos
Издательство: SPIE Press
Год: 2018
Формат: PDF
Страниц: 120
Размер: 24.51 МБ
Язык: English
Lock-in amplifiers are key devices in numerous instruments used in the optical sciences or in optical equipment in industry. In many experimental configurations, they represent the means to reliably detect and record small or weak signals. The purpose of this text is to provide a step-by-step introduction to this technique. The first part explains how modulation is used to extract a signal from noise and describes different types of modulation.