5-34 Issue 05, 02/00 Krautkramer USN 52R/USN 52L
5.7 Measuring thickness
USN 52R/USN 52L enable you to measure thickness
and distance in a simple way. The measured value is
directly displayed. One of the following two methods of
measurement is used, depending on the application:
•Measurement to the first echo – e.g. corrosion
measurement with a dual (T/R) probe
•Measurement of the multi-echo sequence with a
single- element probe on a test object which has a
good surface on both sides
Preparations
–Select probe
–Set MEASURE (refer to previous section)
–Select TOF (refer to Page 5-9)
–Calibrate A-scan display
–Calibrate the USN 52 R for the selected probe and
the measurement mode (refer to previous section)
Measuring the thickness
–Clean the surface of the test object from dirt and any
loose particles
–Apply couplant to the surface of the test object
–Using slight and even pressure, couple the probe
–Observe A-scan display and S=...”-value until the
measured value display is stable
–Maximize the echo amplitude
–Read measured value
H Note:
If you are operating with MULTECHO in MEASURE,
observe Gate b in order to evaluate the correct echo.
You can store the displayed measurement values in the
Data Logger or transfer them into another instrument
via the RS232 interface.
Operation Measuring thickness
5-34 Issue 05, 02/00 Krautkramer USN 52R/USN 52L
5.7 Measuring thickness
USN 52R/USN 52L enable you to measure thickness
and distance in a simple way. The measured value is
directly displayed. One of the following two methods of
measurement is used, depending on the application:
•Measurement to the first echo – e.g. corrosion
measurement with a dual (T/R) probe
•Measurement of the multi-echo sequence with a
single- element probe on a test object which has a
good surface on both sides
Preparations
–Select probe
–Set MEASURE (refer to previous section)
–Select TOF (refer to Page 5-9)
–Calibrate A-scan display
–Calibrate the USN 52 R for the selected probe and
the measurement mode (refer to previous section)
Measuring the thickness
–Clean the surface of the test object from dirt and any
loose particles
–Apply couplant to the surface of the test object
–Using slight and even pressure, couple the probe
–Observe A-scan display and S=...”-value until the
measured value display is stable
–Maximize the echo amplitude
–Read measured value
H Note:
If you are operating with MULTECHO in MEASURE,
observe Gate b in order to evaluate the correct echo.
You can store the displayed measurement values in the
Data Logger or transfer them into another instrument
via the RS232 interface.
Operation Measuring thickness