Abstract：
To osseous tissue, the stress function (normal physiological activity)can lead to local deformation (strain), afterwards, electric potential phenomena will be generated(Stress Generated Potentials, shortening: SGP),which called Bone’s Stress-Generated Potentials . In this paper, based on the conventional piezoelectric theory, INSTRON (8847) tester was used to test the large cylindrical cattle femur’s SGP under Simulated Physiological Loading State. Strictly speaking, the specimen is a whole bone structure. The physiological status bones bear the external dynamic loading as a whole. Such as walking、running 、jumping and so on .Therefore, testing the SGP of whole bone structure (including cortical bone, compact bone, and cancellous bone) has a more realistic reference value. The experiment shows that human femur will have a piezoelectric signal under the conditions of walking and running, besides, running’s piezoelectric amplitude is larger. Its piezoelectric amplitude will become larger with the load and frequency increases. The generated piezoelectric voltage will have an obvious hysteresis phenomenon. Lag time will be shorted when the frequency increases.
Tag：
点此返回栏目查看更多>>>参考论文
