42
en
Thin materials PULSE-ECHO
(P-E)
High frequency
transducers are required;
typically the 7.5MHz and
10MHz models with extra
resolution.
The higher frequencies provide
greater resolution and a lower
minimum thickness rating overall.
High temperature PULSE-ECHO
and
ECHO-ECHO
Special 2.25MHz and 5
MHz High temperature
transducers are required.
Echo-echo mode will eliminate error
caused by temperature variations in
the delay line of the transducer.
Noisy material Select a higher frequency
transducer to reduce this
noise - 7.5MHz and higher
for better resolution.
Materials such as titanium, stainless
steel, and aluminium may produce
surface noise. This is a signal that
appears at the surface of the
material when using a dual element
delay line probe.
Measuring
extreme
curvatures or
areas of restricted
access
Higher frequency
transducers with smaller
diameters are required.
The smallest diameter
uses 3/16" crystals with a
contact area of .250"
Material being
measured
Mode
Transducer type
required
Notes
CG60_CG60DL_TMA_0498_00_01_23225_A6L.fm Page 42 Tuesday, November 22, 2011 12:19 PM
To Next Page
Loading...
