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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.11 [2004] >
IJEMS Vol.11(3) [June 2004] >
| Title: | Design and fabrication of few devices for dynamic measurement of magneto-electric effect |
| Authors: | Bhattacharya, G S
Mazumder, S
Baisnab, S |
| Issue Date: | Jun-2004 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl.7 G01R |
| Abstract: | Measurement of dynamic behaviour of
magneto-electric (ME) effect for sintered ceramics has been done by an
experimental set-up involving several devices, designed and fabricated in our
laboratory. In dynamic method ME signal is registered by measuring the electric
potential across the sample under variable dc magnetic field in presence of an
ac magnetic field. The relevant devices are dedicated for such measurements
only with due consideration to their cost effectiveness. The primary devices
begin with the poling system both (a) electric and (b) magnetic, to pole the
magneto-electric ceramics. Because of the smallness of ME signal precaution
against the noise catch-up is also considered with proper shielding. A lock-in
device is used to detect and measure small signals accurately with proper
choice of frequency tuned to the frequency of the signal as provided by the frequency
generator. The performance of the fabricated devices has been found
satisfactory in conducting the dynamic measurement of ME effect for ceramic
magneto-electric materials. |
| Page(s): | 185-188 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.11(3) [June 2004]
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