Development and implementation of an impedance measurement technique for bovine wet bone samples


  • María Elena Moncada Universidad del Valle
  • Alfredo Martínez Universidad del Valle
  • Carlos Rafael Pinedo Universidad del Valle
  • Héctor Cadavid Universidad del Valle



Bioelectricity, electrical properties of bone tissue, bio-impedance measurement


This paper presents a development and implementation of a methodology to find the electrical properties (conductivity and permittivity) of cortical and medullar tissue in bovine femur samples. The sample size was ten centimeters; they were obtained of healthy and young animals, and after four days animals were dead. Soft parts were removed from the samples and the samples were vacuum packed at 0°C until the tests were done. Experimental protocols for maintenance and treatment of samples were developed. A couple of contact electrodes were built for the measurements and the electrode’s impedance was determined. A parallel RC circuit was connected to the measurement system to decrease the electrode’s impedance effect. The measurements were done for 100 Hz and 120 Hz. The measured variables were impedance (Z) and angle (θ), and the calculated variables were conductivity (σ) and permittivity (ε) by means of mathematical equations. The results were in agreement with literature values.

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Author Biographies

María Elena Moncada, Universidad del Valle

Grupo de Investigación en Alta Tensión – GRALTA, Laboratorio de Alta Tensión

Alfredo Martínez, Universidad del Valle

Grupo de Investigación en Ortopedia y Traumatología – TRAUMATOR, Laboratorio de Alta Tensión

Carlos Rafael Pinedo, Universidad del Valle

Grupo de Investigación en Percepción y Sistemas Inteligentes – PSI , Laboratorio de Alta Tensión

Héctor Cadavid, Universidad del Valle

Grupo de Investigación en Alta Tensión – GRALTA, Laboratorio de Alta Tensión


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How to Cite

Moncada, M. E., Martínez, A., Pinedo, C. R., & Cadavid, H. (2014). Development and implementation of an impedance measurement technique for bovine wet bone samples. Revista Facultad De Ingeniería Universidad De Antioquia, (44), 75–82.

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