Next Article in Journal
Detecting Solenoid Valve Deterioration in In-Use Electronic Diesel Fuel Injection Control Systems
Next Article in Special Issue
Efficacy of a Computerized Sensor System for Evaluation and Training of Dizzy Patients
Previous Article in Journal
Reaction Force/Torque Sensing in a Master-Slave Robot System without Mechanical Sensors
Previous Article in Special Issue
Molecular Biosensing Mechanisms in the Spleen for the Removal of Aged and Damaged Red Cells from the Blood Circulation
Sensors 2010, 10(8), 7146-7156; doi:10.3390/s100807146
Article

A Piezoelectric Plethysmograph Sensor Based on a Pt Wire Implanted Lead Lanthanum Zirconate Titanate Bulk Ceramic

,
 and *
Centro de Investigación y de Estudios Avanzados del IPN, Electrical Engineering Department, Bioelectronics Section. Av. IPN 2508, Col. San Pedro Zacatenco, C.P. 07360, México D.F., Mexico
* Author to whom correspondence should be addressed.
Received: 15 June 2010 / Revised: 30 June 2010 / Accepted: 15 July 2010 / Published: 29 July 2010
(This article belongs to the Special Issue Sensors in Biomechanics and Biomedicine)
View Full-Text   |   Download PDF [1116 KB, uploaded 21 June 2014]   |   Browse Figures

Abstract

This work reports on the development of a Lead Lanthanum Zirconate Titanate (PLZT) bulk ferroelectric poled ceramic structure as a Piezoelectric Plethysmograph (PZPG) sensor. The ceramic was implanted during its fabrication with a platinum (Pt) wire which works as an internal electrode. The ceramic was then submitted to an experimental setup in order to validate and determine the Pt-wire mechanical effects. This PZPG sensor was also mounted on a finger splint in order to measure the blood flow that results from the pulsations of blood occurring with each heartbeat. Fingertip pulses were recorded jointly with an ECG signal from a 25 year old male to compare the time shift; the PZPG sensor guarantees the electrical isolation of the patient. The proposed PZPG has several advantages: it can be adjusted for fingertip measurements, but it can easily be extended by means of spare bands, therefore making possible PZPG measurements from different body locations, e.g., forehead, forearm, knee, neck, etc.
Keywords: PLZT application; ceramic implants; plethysmography PLZT application; ceramic implants; plethysmography
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Export to BibTeX |
EndNote


MDPI and ACS Style

González-Morán, C.O.; Flores-Cuautle, J.A.; Suaste-Gómez, E. A Piezoelectric Plethysmograph Sensor Based on a Pt Wire Implanted Lead Lanthanum Zirconate Titanate Bulk Ceramic. Sensors 2010, 10, 7146-7156.

View more citation formats

Related Articles

Article Metrics

Comments

Citing Articles

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert