BIOLOGICAL IMPEDANCE MEASUREMENT PROBE, MEASUREMENT SYSTEM AND METHOD BASED ON SPECTRAL CHARACTERISTIC

摘要

A biological impedance measurement probe, measurement system and method based on a spectral characteristic. The measurement probe (10) comprises a substrate (11) and at least six electrodes embedded in the substrate (11), the six electrodes include a first electrode (12), a second electrode (13), a third electrode (14), a fourth electrode (15), a fifth electrode (16) and a sixth electrode (17), wherein the first electrode (12) is arranged opposite to the fourth electrode (15) or/and the second electrode (13) is arranged opposite to the fifth electrode (16) or/and the third electrode (14) is arranged opposite to the sixth electrode (17), excitation is conducted between any oppositely-arranged electrodes, the electrodes (12, 13, 14, 15, 16, 17) are distributed on the substrate in the form of a circumferential array, and there are at least two electrode pairs in axial symmetry. The probe has the characteristics of being stable in signal collection and simple in structure. In addition, the biological impedance measurement system and method based on a spectral characteristic can effectively reduce the influence of the contact impedance between the probe and measured tissues and also improve the accuracy of judging whether the probe is located at the junction of human body tissues or animal body tissues.