Olympus EPOCH 650, Руководство пользователя

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DMTA-10055-01EN, Rev. A, February 2015
Chapter 7 130
1stPeak
Acquires the amplitude measurement of the indication from the first peak
within the gate. The peak must break the threshold of the gate to be
measured. In this mode, you will now see two triangles appear on the gate.
The solid triangle indicates the point from which thickness or sound
path/depth measurements are being acquired. The hollow triangle indicates
the point from which the amplitude measurement is being made.
The EPOCH 650 does not acquire measurement readings unless the indication of
interest is within a gated region of the screen. You should be careful to adjust the
Start , Width , and Level of a measurement gate so that only the indication of interest
falls within the gated region, per the measurement mode definitions above.
7.4 Viewing Measurement Readings
The EPOCH 650 ultrasonic flaw detector provides five measurement reading boxes to
display acquired measurements. These measurement readings must be properly
defined to view the desired information from a given indication.
For more information on defining measurement reading boxes, and for a full list of
possible measurement readings, see “Reading Setup Page” on page 91.
7.5 Gate Tracking and Echo-to-Echo Measurements
The gate tracking feature of the EPOCH 650 ultrasonic flaw detector allows you to
make echo-to-echo measurements whenever this feature is required by an
application. Echo-to-echo measurements can be made between gate 2 —gate 1.
Gate tracking can also be accomplished between either gate 1 or gate 2 and the
optional interface gate. See “Interface Gate” on page 271 for more information.
NOTE