Design of a Miniaturized Wireless Blood Pressure Sensing Interface Using Capacitive Coupling

Author

Aldaoud, Ammar ; Laurenson, Callum ; Rivet, Francois ; Yuce, Mehmet Rasit ; Redoute, Jean-Michel

Author_Institution

Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Melbourne, VIC, Australia

Volume

20

Issue

1

fYear

2015

fDate

Feb. 2015

Firstpage

487

Lastpage

491

Abstract

This paper presents the implementation of a miniaturized wireless blood pressure sensor interface. The system uses capacitive coupling in order to transmit the data, as well as wireless inductive powering. Designed for a bit length of 6.4 μs, the average power consumption of the device has been measured to be 20.5 μW and 2.85 mW in air and phantom material, respectively. The miniaturized sensor interface circuit consists of two plates with a diameter of 2.5 cm, which are connected by means of a thin wire; the device´s maximum thickness is 5 mm.

Keywords

biomedical equipment; blood pressure measurement; inductive power transmission; phantoms; pressure sensors; wireless sensor networks; air; capacitive coupling; miniaturized wireless blood pressure sensing interface design; phantom material; power 2.85 mW; power 20.5 muW; size 2.5 cm; wireless inductive powering; Blood pressure; Couplings; Materials; Phantoms; Receivers; Wireless communication; Wireless sensor networks; Capacitive coupling; inductive powering; wireless implantable sensor interface;

fLanguage

English

Journal_Title

Mechatronics, IEEE/ASME Transactions on

Publisher

ieee

ISSN

1083-4435

Type

jour

DOI

10.1109/TMECH.2014.2322614

Filename

6822620