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13.3 GEOMETRY OF THE TRANSDUCER
The physical constraints of the measuring environment sometimes determine the suitability of a transducer
for a given job. The transducer may simply be too large to be used in confined areas. Also, the surface area
available for contacting with the transducer may be limited. Measuring on a curved surface may require the
use of a transducer with a matching curved wearface.
13.4 TEMPERATURE OF THE MATERIAL
When it is necessary to measure on surfaces that are exceedingly hot, special high-temperature
transducers may be necessary. Additionally, care must be taken when performing a 'Calibration to Known
Thickness' with a high temperature application.
13.5 SELECTING THE CORRECT TRANSDUCER
Elcometer NDT has a complete range of transducers to meet your requirements, including:
•
A range of frequencies and sizes
•
Straight and right angle
•
Transducers available as potted or microdot transducers:
Potted transducers - transducer cable is permanently fixed to the transducer head.
Microdot transducers - transducer cable is fixed to the transducer head by a connector - allows trans-
ducer heads to be replaced quickly and easily.
•
High temperature transducers - temperature up to 480°C (896ºF)
When selecting a transducer, it is important to choose one which will best meet your application, taking into
consideration the measurement range, the type of material to be tested and the design of the transducer probe type.
For full details of the Elcometer NDT range of transducers contact your local Elcometer NDT supplier, or
visit the Elcometer NDT website www.elcometerndt.com
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