An Introduction to the Lock-In Amplifier and a Mie Scattering Experiment
written by
Jessie Petricka
A three week sequence begins with an introduction to the lockin amplifier and builds to an automated measurement of Mie scattering. In week one, the lockin introduction builds familiarity using a LabVIEW simulation and a pre-recorded CD. Students then use the lockin to measure a frequency response curve of an acoustical resonance in a glass beaker. Then, as a prelude to a precision measurement, they also do an optical measurement of ND filters. In week two, the Mie scattering is automated using LabVIEW with GPIB and a stepper motor controller. Finally, in week three the students perform chi-square data analysis of their scattering data to find the diameter of the scattering media.
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![]() @misc{
Author = "Jessie Petricka",
Title = {An Introduction to the Lock-In Amplifier and a Mie Scattering Experiment},
Volume = {2025},
Number = {17 February 2025},
Year = {2014}
}
![]() %A Jessie Petricka %T An Introduction to the Lock-In Amplifier and a Mie Scattering Experiment %D 2014 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14315&DocID=4675 %O application/pdf ![]() %0 Electronic Source %A Petricka, Jessie %D 2014 %T An Introduction to the Lock-In Amplifier and a Mie Scattering Experiment %V 2025 %N 17 February 2025 %9 application/pdf %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14315&DocID=4675 Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.
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