Magnetic induction tomography: visualization of extensive objects

Sapetsky SA, Korjenevsky AV Magnetic induction tomography: visualization of extensive objects. In: Proc. XII Int. Conf. Electrical Bio-Impedance & V Electrical Impedance Tomography, 20-24 June 2004, Gdansk, Poland , С. 695-698.

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Аннотация

During recent development the systematic errors of the multichannel measuring system were considerably reduced. These errors were especially noticeable in case of extensive objects visualization. Besides phase measuring accuracy was increased by means of the improvement of the control circuit. The results of imaging of biological objects are presented. The dynamical image of thorax was reconstructed by the filtered backprojection method. The static visualization of human head was carried out using reconstruction algorithm based on artificial neural network. Special experiments were carried out to demonstrate that non-conducting shell dividing two conducting media doesn't influence qualitatively on results of measuring for given geometry and measuring setup. The phantom consisting of tank with NaCl solution and gelatinous cylinder imbedded into it was used. The cylinder had conductivity higher than conductivity of surrounding solution. The MIT measuring system with variable working frequency was developed also. The directly proportional dependence of measured phase shifts on frequency was demonstrated for the material without significant frequency dispersion.

Тип объекта: Доклад на конференции или семинаре (Доклад)
Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: Сапецкий С.А., Корженевский А.В.
Подразделения (можно выбрать несколько, удерживая Ctrl): 201 лаб. математических методов радиофизики
URI: http://cplire.ru:8080/id/eprint/3415
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