TY  - EJOU
AU  - R.Kirikera, Goutham 
AU  - Krishnaswamy, Sridhar 

TI  - Series-connected Interdigitated Surface Acoustic Wave Sensors for Structural Health Monitoring
T2  - Structural Longevity

PY  - 2009
VL  - 2
IS  - 1
SN  - 1944-6128

AB  - Active health monitoring using narrowband Raleigh-wave or modeselective Lamb-wave actuation and reception involves the use of a pair of matched
multi-element transducer arrays. The spacing of the elements of the transducer
arrays dictates the Lamb mode wavelength, and by appropriate choice of drive frequency, a specific mode can be selected. Typically, the elements of the transducer
array are all connected in a parallel configuration and are used for both excitation
and reception. It is shown in this paper that for reception a series connected transducer array results in better performance. Connecting multiple electrodes in a series
configuration allows the summing of individual voltages generated by each piezoelectric transducer and it is shown that this results in better sensor performance.
KW  - Continuous Sensors
KW  -  Mode selective excitation/reception
KW  -  series con- figuration transducer array
KW  -  parallel configuration transducer array

DO  - 10.3970/sl.2009.002.011