Measurement of the piezoelectric effect in bone using quasi-heterodyne holographic interferometry

B. Ovryn, E. M. Haacke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The piezoelectric properties in bone have been recognized for nearly three decades. Most investigations concerning this effect have focused on strain induced potentials. In our research, a quasi-heterodyne holographic system was used to measure the piezoelectric effect in bone. Data are acquired at video rates using four phase shifts and the phase is reconstructed at discrete locations over the surface of the bone. Phase changes can be measured to a precision of at least 4 degrees. The interference fringes are observed in real-time by producing a hologram of dry, bovine tibia held in a vice. A voltage is applied to electrodes on the surface of the bone and a single component of surface displacement is measured. Because the piezoelectric coefficients in bone are extremely small, approximately a picometer per volt, it is useful to improve the signal-to-noise of the technique. The method we have pursued is to average over repeatedly acquired data sets. The presence of air turbulence, however, requires that compensation for spurious phase changes be applied to the data before averaging. We have developed a technique which compensates for low spatial frequency phase changes, allowing averaging over temporally separated data sets. The basis of the technique is to surround the object by a stationary control. The phase over this control is used to correct for the phase over the object. The corrected phase images are averaged together to improve the background signal-to-noise. The concept was evaluated on an aluminum blade and was shown to improve the phase estimate. Preliminary results on bone indicate cantilever bending due to an applied voltage with a piezoelectric constant of 0.6 pm/V.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsHalina Podbielska, Abraham Katzir
PublisherPubl by Int Soc for Optical Engineering
Pages172-182
Number of pages11
Volume1429
StatePublished - 1991
Externally publishedYes
EventProceedings of Holography, Interferometry, and Optical Pattern Recognition in Biomedicine - Los Angeles, CA, USA
Duration: Jan 21 1991Jan 22 1991

Other

OtherProceedings of Holography, Interferometry, and Optical Pattern Recognition in Biomedicine
CityLos Angeles, CA, USA
Period1/21/911/22/91

Fingerprint

Holographic interferometry
Piezoelectricity
holographic interferometry
bones
Bone
tibia
Electric potential
electric potential
Holograms
blades
Phase shift
Turbulence
phase shift
turbulence
aluminum
Aluminum
interference
Electrodes
electrodes
air

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Ovryn, B., & Haacke, E. M. (1991). Measurement of the piezoelectric effect in bone using quasi-heterodyne holographic interferometry. In H. Podbielska, & A. Katzir (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1429, pp. 172-182). Publ by Int Soc for Optical Engineering.

Measurement of the piezoelectric effect in bone using quasi-heterodyne holographic interferometry. / Ovryn, B.; Haacke, E. M.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Halina Podbielska; Abraham Katzir. Vol. 1429 Publ by Int Soc for Optical Engineering, 1991. p. 172-182.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ovryn, B & Haacke, EM 1991, Measurement of the piezoelectric effect in bone using quasi-heterodyne holographic interferometry. in H Podbielska & A Katzir (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 1429, Publ by Int Soc for Optical Engineering, pp. 172-182, Proceedings of Holography, Interferometry, and Optical Pattern Recognition in Biomedicine, Los Angeles, CA, USA, 1/21/91.
Ovryn B, Haacke EM. Measurement of the piezoelectric effect in bone using quasi-heterodyne holographic interferometry. In Podbielska H, Katzir A, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1429. Publ by Int Soc for Optical Engineering. 1991. p. 172-182
Ovryn, B. ; Haacke, E. M. / Measurement of the piezoelectric effect in bone using quasi-heterodyne holographic interferometry. Proceedings of SPIE - The International Society for Optical Engineering. editor / Halina Podbielska ; Abraham Katzir. Vol. 1429 Publ by Int Soc for Optical Engineering, 1991. pp. 172-182
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