کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
729723 1461518 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Implementation of a field programmable gate array-based lock-in amplifier
ترجمه فارسی عنوان
اجرای یک تقویت کننده قفل درپوش آرایه مبتنی بر میدان
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی

A Lock-In Amplifier (LIA), or phase sensitive detector, is an instrument capable of providing high frequency selectivity allowing the user to distinguish a signal of interest from background noise, and has become an important component in the instrumentation for the study of many different physical phenomena. In this work a LIA is implemented using digital signal processing techniques on a field programmable gate array, or FPGA, and is compared against a commercial counterpart with the objective of showing that homebrewed instruments can produce reliable and trustworthy results. For this comparison experimental tests have been performed which are based on the photoacoustic effect, given that LIAs are cornerstones of many techniques based in this and other related effects.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 69, June 2015, Pages 31–41
نویسندگان
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