HIGH-PERFORMANCE, LOW-NOISE DIGITAL CONTROLLER FOR INCHWORM PIEZOELECTRIC TRANSLATORS

TitleHIGH-PERFORMANCE, LOW-NOISE DIGITAL CONTROLLER FOR INCHWORM PIEZOELECTRIC TRANSLATORS
Publication TypeJournal Article
Year of Publication1992
AuthorsChen, X, Cousins, B, McEllistrem, M, Hamers, RJ
JournalReview of Scientific Instruments
Volume63
Pagination4308-4313
Date PublishedOct
Type of ArticleArticle
ISBN Number0034-6748
Accession NumberISI:A1992JV13200008
Keywordsscanning tunneling microscope
Abstract

We have designed and constructed a high-performance, low-noise digital controller for "inchworm" piezoelectric translators. The controller features a maximum output voltage of 700 V, an rms noise level of less than 2 mV, and is capable of driving inchworms at speeds of up to 0.23 mm/s. The controller offers substantially better performance in terms of resolution, noise, speed, and cost than commercial controllers, and is suitable for atomic resolution scanning tunneling microscopy and atomic force microscopy applications.

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