A nondisturbing electric-field sensor using piezoelectric and converse piezoelectric resonances

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An electric-field sensor was developed using both piezoelectric and converse piezoelectric resonances. Composed of no metallic parts, this probe minimizes field disturbance. The most distinguishing feature of this probe is that a signal is transmitted neither electrically nor optically, but mechanically. To demonstrate the field sensing capability of this probe, we measured both the capacitive and inductive fields inside empty and plasma-filled solenoidal coils. The result shows that the capacitive field is dominant in an empty solenoid, although it is almost completely shielded by inductively excited plasma. (C) 1997 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
1997-12
Language
English
Article Type
Article
Keywords

MAGNETIC-FIELDS; NMR

Citation

REVIEW OF SCIENTIFIC INSTRUMENTS, v.68, no.12, pp.4427 - 4430

ISSN
0034-6748
URI
http://hdl.handle.net/10203/76157
Appears in Collection
PH-Journal Papers(저널논문)
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