Issue << content << Non-Contact Ultrasonic Sensors for Process Measurements in Composite Fabrication


2008. . No. 2(40) - Jun 2008, pp. 65-67

Non-Contact Ultrasonic Sensors for Process Measurements in Composite Fabrication

P. Karthikeyan, Mahesh C. Bhardwaj, Krishnan Balasubramaniam

Quality inspection of the composite products becomes important to avoid defects during processing since these products are used for critical applications. In this paper we will discuss non-contact ultrasonic technique using high sensitivity transducers in which final impedance matching layer is designed to reduce the mismatch between the piezoelectric material and air.
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