title: Near-field wireless magnetic link for an ingestible cattle health monitoring pill.
abstract: Cattle health assessment is receiving increased attention due to threats that disease and bioterrorism pose to producer profits and to the safety of the food supply. Ingestible pill technology offers a promising means to obtain these physiologic data, since a bovine reticulum is an environment sheltered from outside elements that offers direct access to feed intake and heart/lung data. Traditional radio-frequency links are inappropriate for this application, as water absorption severely limits transmission ranges through tissue. This paper presents the initial design of a communications link that utilizes magnetic induction for signal transport and should be well-suited for a tissue medium. The link consists of a transmitter/receiver pair that employs loop antennae frequency matched at 125 kHz. Optimization of the link design offers the potential to achieve transmission distances of several feet through tissue.
authors: Department of Electrical & Computer Engineering, Kansas State University, Manhattan, KS, USA.
authors: Seth
authors: S
authors: Hoskins
authors: Timothy
authors: T
authors: Sobering
authors: Daniel
authors: D
authors: Andresen
authors: Steve
authors: S
authors: Warren
mesh_terms: D000818:Animals; D002417:Cattle; D004304:Dosage Forms; D006262:Health; D008280:Magnetics / Q000295:instrumentation*; D013686:Telemetry / Q000295:instrumentation* / Q000662:veterinary*
chemical_list: D004304:Dosage Forms