Separation of the Pyro- and Piezoelectric Response of Electroactive Polymers for Sensor Applications


Article Preview

One of the main problems for the use of ferroelectric materials for sensor applications, especially for tactile sensors, is the separation of the pyro- and piezoelectric responseproduced by temperature and pressure changes, respectively. We present two different approaches to achieve this goal. The first approach is based on the study of the signal in the frequency domain and uses a signal processing to separate the approach is based on a double layer configuration of electroactive polymers. In this case, the piezoelectric response is equal in each layer, whereas, the pyroelectric response dominates in the layer exposed to the temperature variations. The pyro- and piezoelectric responses are separated by estimating the diference between the signals of two layers and the signal from one of the layers, correspondingly.



Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho






H. F. Castro et al., "Separation of the Pyro- and Piezoelectric Response of Electroactive Polymers for Sensor Applications ", Materials Science Forum, Vols. 514-516, pp. 202-206, 2006

Online since:

May 2006




[1] J. Fraden, Handbook for Modern Sensors, AIP, New York, (1997) and references therein.

[2] H. Singh Nalwa, J. Macromol. Chem. Phys., C31(4), (2001) pp.341-417.

[3] T. Furukawa, Phase Transitions Vol 18 (1989), p.143.

[4] E. Fukada, History and Recent Progress in Piezoelectric Polymers, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 47, 6, (2000), pp.1227-1290, , and references therein.

DOI: 10.1109/58.883516

[5] R.R. Reston, E.S. Kolesar, "Robotic tactile sensor array fabricated from a piezoelectric polyvinylidene fluoride film, in Proceedings of the IEEE NAECON, (1990), pp.1139-1144.

DOI: 10.1109/naecon.1990.112928

[6] J. Engel, J. Chen, Z. Fan, C. Liu, Polymer micromachined multimodal tactile sensor, Sensors and Actuators A: Physical, 117 (1), (2005) pp.50-61.

DOI: 10.1016/j.sna.2004.05.037

[7] Piezo Film Sensors Technical Manual, Measurements Specialties, (1999).

In order to see related information, you need to Login.