%0 Journal Article
%T On the Influence of Relative Humidity on Piezoelectric Signals<br>湿度对骨内压电信号的影响
%A FU Dong-hui
%A HOU Zhen-de
%A QIN Qing-hua
%A LU Chen-xia
%A <br>富东慧
%A 侯振德
%A 秦庆华
%A 卢晨霞
%J 实验力学
%D 2009
%I 
%X The piezoelectric effect of bone is related to relative humidity levels. Under trapezoidal pulse loading, piezoelectric signals of dry bone samples three-point bending were measured at different relative humidity levels. Piezo-voltages were obtained by using an ultra high input impedance bioamplifier. For the sake of comparing, piezo-charges of bone were also measured. Results show that piezo-voltage of bone quickly decreases with humidity increasing. Piezo-voltage decreases around 80% along with the relative humidity increases from 30% to 60%. The measured piezo-charge also decreases at lower rate along with humidity increasing due to different test principle. It is concluded that piezo-voltage induced by deformation of bone may be performed in a pulse style under dynamic loads.
%K bone
%K piezoelectricity
%K piezo-voltage
%K piezo-charge
%K relative humidity<br>骨
%K 压电性
%K 压电电压
%K 压电电荷
%K 相对湿度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=49067A0A0D864088C06A84AACB51A5B2&aid=D5CF4C99A42F4B4A0EE4AB70702E1B89&yid=DE12191FBD62783C&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=8143FF92EEF26F96&eid=A94616C4391AA5EF&journal_id=1001-4888&journal_name=实验力学&referenced_num=0&reference_num=8