Automation of a high-speed imaging setup for differential viscosity measurements

C. Hurth, B. Duane, D. Whitfield, S. Smith, A. Nordquist, F. Zenhausern

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We present the automation of a setup previously used to assess the viscosity of pleural effusion samples and discriminate between transudates and exudates, an important first step in clinical diagnostics. The presented automation includes the design, testing, and characterization of a vacuum-actuated loading station that handles the 2 mm glass spheres used as sensors, as well as the engineering of electronic Printed Circuit Board (PCB) incorporating a microcontroller and their synchronization with a commercial high-speed camera operating at 10 000 fps. The hereby work therefore focuses on the instrumentation-related automation efforts as the general method and clinical application have been reported earlier [Hurth, J. Appl. Phys. 110, 034701 (2011)]. In addition, we validate the performance of the automated setup with the calibration for viscosity measurements using water/glycerol standard solutions and the determination of the viscosity of an "unknown" solution of hydroxyethyl cellulose.

Original languageEnglish (US)
Article number244701
JournalJournal of Applied Physics
Issue number24
StatePublished - Dec 28 2013

ASJC Scopus subject areas

  • General Physics and Astronomy


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