DMTA-10022-01EN, Rev. C, January 2015
Chapter 5
64
In general, use a thinner couplant (such as propylene glycol, glycerin, or water) for
smooth material surfaces. Rough surfaces require a more viscous couplant, such as
gel or grease. Special couplants are required for high-temperature applications.
2. Using moderate to firm pressure, couple the tip of the transducer to the surface of
the test material, and keep the transducer as flat as possible on the material
surface (see Figure 5-11 on page 64).
Figure 5-11 Coupling a dual element transducer
3. Read the measured thickness value for the tested part (see Figure 5-12 on
page 65).
To Next Page
Loading...
