DESIGN AND IMPLEMENTATION OF SINGLE-PHASED VIRTUAL LOCK-IN AMPLIFIER BASED ON MICROCONTROLLER AND LABVIEW

Design and implementation of single-phase virtual Lock-In Amplifier (LIA) based on microcontroller and LabVIEW has been done. Virtual-LIA is designed using the Arduino UNO microcontroller as a data acquisition device and LabVIEW to perform mathematical operation based on working principle of Lock-In...

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Bibliographic Details
Main Author: SYAHRUN NAHAR (NIM : 10213075), WILDAN
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/31608
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Institution: Institut Teknologi Bandung
Language: Indonesia
Description
Summary:Design and implementation of single-phase virtual Lock-In Amplifier (LIA) based on microcontroller and LabVIEW has been done. Virtual-LIA is designed using the Arduino UNO microcontroller as a data acquisition device and LabVIEW to perform mathematical operation based on working principle of Lock-In Amplifier. The experiment was conducted in 2 ways, using simulation and audio signal generated by LabVIEW program and then acquired by Arduino UNO and then processed mathematically in LabVIEW. The average success percentage using simulation shows 98.5% for pure signal and 93.6% for signal with noise. While the average success percentage using an audio signal shows the value of 98.3% for pure signal and 97.4% for signal with noise up to 200 times of the pure signal.