TITLE:
A Magentoelectric Coefficient Measurement System with a Free-Stress Sample Holder
AUTHORS:
Jingjing Lu, Xiya Wang, Junhao Wang, Yufei Zhou, Duo Chen, Shibo Wang, Maofa Zhang, Xiangbin Zeng
KEYWORDS:
Magnetoelectric Coefficient, Measurement System, Free-Stress Sample Holder
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.8 No.4,
July
30,
2020
ABSTRACT: With
less extra stress on the testing sample, a free-stress sample holder was
designed to place the sample horizontally. With the free-stress sample holder,
a magnetoelectric (ME) coefficient measurement system was developed based on
dynamic method. This measurement system has the hardware part and the software
part, integrated by the DC magnetic field generation module, the AC magnetic
field generation module, the induced ME voltage detecting module and PC
software module. Then, a sample of Terfenol-D/PZT/Terfenol-D trilayer was designed
and fabricated, and the relationships of its ME coefficient influenced by the
DC magnetic field and the frequency of the AC magnetic field were tested using
the measurement system. And the results showed that the free-stress sample
holder was proven to improve the accuracy of the measurement system by less
stress interference.