© The Institution of Engineering and Technology
A passive, non-contact piezoelectric microelectromechanical system sensor, aimed to perform monitoring of electricity consumption in DC electrical appliances with current switching, was proposed and demonstrated. A micro-magnet was integrated into the proposed sensor and an appropriate position for locating the micro-magnet was theoretically determined. A prototype piezoelectric sensor was fabricated, and an impulse piezoelectric voltage output was detected from a two-wire electrical appliance cord without using cord separator and driving power when switching a DC electric current on or off. A linear relationship between the measured peak value of the impulse output voltage and the applied DC electric current was obtained. The difference between the measured value and the calculated one was further theoretically considered from the view point of impedance effect.
References
-
-
1)
-
K. Le Phan ,
H. Boeve ,
F. Vanhelmont ,
T. Illink ,
F. de Jong ,
H. de Wilde
.
Tunnel magneto resistive current sensors for IC testing.
Sens. Actuat. A
,
69 -
74
-
2)
-
M.S. Weinbeng
.
Working equations for piezoelectric actuators and sensors.
J. Microelectromech. Syst.
,
4 ,
529 -
533
-
3)
-
D. Lee ,
H. Mekaru ,
H. Hiroshima
.
3D replication using PDMS mold for microcoil.
Microelectron. Eng.
,
920 -
924
-
4)
-
E.S. Leland ,
P.K. Wrigth ,
R.M. White
.
A MEMS AC current sensor for residential and commercial electricity end-use monitoring.
J. Microelectromech. Microeng.
-
5)
-
A. Sophian ,
G.Y. Tian ,
D. Taylor ,
J. Rudlin
.
Design of a pulsed eddy current sensor for detection of defects in aircraft lap-joints.
Sens. Actuat. A
,
92 -
98
-
6)
-
R.S. Popovic
.
Not-plate-like Hall magnetic sensors and their applications.
Sens. Actuat.
,
9 -
17
-
7)
-
J.G. Smits ,
W. Choi
.
The constituent equations of piezoelectric heterogeneous bimorphs.
IEEE Trans. Ultrason. Ferroelectr. Freq. Contr.
,
256 -
270
-
8)
-
K. Kratt ,
V. Badilita ,
T. Burger ,
J.G. Korvink ,
U. Wallrabe
.
A fully MEMS-compatible process for 3D high aspect ratio micro coils obtained with an automatic wire bonder.
J. Micromech. Microeng.
-
9)
-
T. O'Doneel ,
A. Tipek ,
A. Connell ,
P. McCloskey ,
S.C. O'Mathuna
.
Planar fluxgate current sensor integrated in printed circuit board.
Sens. Actuat. A
,
20 -
24
-
10)
-
P. Ripka
.
Current sensor using magnetic materials.
J. Optoelectron. Adv. Mater.
,
2 ,
587 -
592
-
11)
-
Q. Zou ,
W. Tan ,
E.S. Kim ,
G.E. Loed
.
Single- and triaxis piezoelectric-bimorph accelerometer.
J. Microelectromech. Syst.
,
1 ,
45 -
57
-
12)
-
B. Bao ,
Y. Zhou ,
P. Yang ,
G. Wang
.
Theoretical and experimental study on novel weak current sensor using single nanocrystalline toroidal core with double-winding.
Sens. Actuat. A
,
84 -
88
-
13)
-
T. Kobayashi ,
H. Okada ,
T. Masuda ,
R. Meada ,
T. Itoh
.
A digital output piezoelectric accelerometer using a Pb(Zr, Ti)O3 thin film array electrically connected in series.
Smart Mater. Struct.
http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2011.0637
Related content
content/journals/10.1049/mnl.2011.0637
pub_keyword,iet_inspecKeyword,pub_concept
6
6