Note: The intermodulation lockin analyzer
2011 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 82, no 2, 026109- p.Article in journal (Refereed) Published
Nonlinear systems can be probed by driving them with two or more pure tones while measuring the intermodulation products of the drive tones in the response. We describe a digital lockin analyzer which is designed explicitly for this purpose. The analyzer is implemented on a field-programmable gate array, providing speed in analysis, real-time feedback, and stability in operation. The use of the analyzer is demonstrated for intermodulation atomic force microscopy. A generalization of the intermodulation spectral technique to arbitrary drive waveforms is discussed.
Place, publisher, year, edition, pages
2011. Vol. 82, no 2, 026109- p.
IdentifiersURN: urn:nbn:se:kth:diva-31596DOI: 10.1063/1.3541791ISI: 000287813400082ScopusID: 2-s2.0-79952143423OAI: oai:DiVA.org:kth-31596DiVA: diva2:406373
FunderSwedish Research Council
QC 201103252011-03-252011-03-212013-05-27Bibliographically approved