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Ultrasonic thickness gauges can be used for a variety of fiberglass applications measuring parts from one side. For example, inspectors can use ultrasonic gauges to check fiberglass storage tanks and pipes as part of the manufacturing process and in service to assure that no erosion or delamination from corrosive chemicals has resulted. Other fiberglass thickness
applications include hot tubs, electronic circuit boards, coil bobbins, and sporting equipment. Ultrasonic gauges can be used on many types of fiberglass: cloth, mat, roving, filament wound, or combinations of these.
Ultrasonic Equipment Used for Fiberglass Thickness Measurements
Fiberglass measurements are normally performed with precision thickness gauges, such as the 39DL PLUS™ gauge or 45MG gauge with the High Penetration software option. Transducer selection and setup depend on the desired thickness range capability and quality of the composite material. A typical measurement range is from 0.05 to 3 in. (1.25 to 75 mm) using the specialized 0.5 MHz M2008 fiberglass transducer for thicker parts. Other transducers such as the M1036 (2.25 MHz) or M109 (5 MHz) are used for thicknesses under 0.5 in. (12.5 mm).
