title: Variable frequency bioimpedance instrumentation.
abstract: The design of instrumentation used to measure the bioimpedance of skin or tissue is presented. An inexpensive, component level approach, appropriate for use by researchers rather that commercial applications, is emphasized. The design and implementation process is thoroughly explained and design tradeoffs are discussed with relation to various applications. A validation of the implementation in hardware is presented and an example application to skin impedance topography is considered.
authors.affiliation: Dept. of Electr. & Comput. Eng., Portland State Univ., OR, USA.
authors.forename: D
authors.initials: D
authors.lastname: Tsunami
authors.forename: J
authors.initials: J
authors.lastname: McNames
authors.forename: A
authors.initials: A
authors.lastname: Colbert
authors.forename: S
authors.initials: S
authors.lastname: Pearson
authors.forename: R
authors.initials: R
authors.lastname: Hammerschlag