title: Note: Development of leg size sensors for fluid accumulation monitoring.
abstract: 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.
authors.affiliation: Department of Mechanical Engineering, University of Minnesota at Twin Cities, Minneapolis, Minnesota 55455, USA.
authors.forename: Song
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Department of Mechanical Engineering, University of Minnesota at Twin Cities, Minneapolis, Minnesota 55455, USA.
authors.forename: Rajesh
authors.initials: R
authors.lastname: Rajamani
authors.affiliation: Department of Mechanical Engineering, University of Minnesota at Twin Cities, Minneapolis, Minnesota 55455, USA.
authors.forename: Lee
authors.initials: L
authors.lastname: Alexander
authors.affiliation: Department of Mechanical Engineering, University of Minnesota at Twin Cities, Minneapolis, Minnesota 55455, USA.
authors.forename: A
authors.initials: A
authors.lastname: Serdar Sezen
mesh_terms: D001826:Body Fluids / Q000378:metabolism*; D004867:Equipment Design; D006801:Humans; D007866:Leg; D060526:Magnetic Fields; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D014159:Transducers; D000076251:Wearable Electronic Devices