Note: Development of leg size sensors for fluid accumulation monitoring

Song Zhang, Rajesh Rajamani, Lee Alexander, A. Serdar Sezen

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A number of diseases can lead to fluid accumulation and swelling in the lower leg. Early detection of leg swelling can be used to effectively predict potential health risks and allows for early intervention from medical providers. Hence this note develops a novel leg size sensor based on the use of magnetic field measurement. An electromagnet is combined with two magnetic field transducers to provide a drift-free leg size estimation technique immune to environmental disturbances. The sensor can measure changes as small as 1 mm in diameter reliably during in vitro tests. Its performance is compared with that of other size measurement techniques.

Original languageEnglish (US)
Article number056109
JournalReview of Scientific Instruments
Issue number5
StatePublished - May 1 2016

Bibliographical note

Funding Information:
This work was supported in part by the National Science Foundation, Division of Information & Intelligent Systems, Grant No. IIS-1231582.

Publisher Copyright:
© 2016 Author(s).


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