DMTA-10055-01EN, Rev. A, February 2015
Chapter 9
172
Figure 9-22 Example of a gated signal for velocity calibration
Another echo might be present on the screen at approximately the 200 mm (8 in.)
point. Disregard this echo as it is usually the result of beam spreading and sound
bouncing off the side of the block. Ensure that gate 1 is not over this echo.
8.
Press dB, and then adjust the gain so that the echo amplitude is at approximately
80 %.
The sound path measurement reading appears in the Reading 2 box.
9.
Once a steady reading is achieved, choose
Auto Cal > Cal-Vel
.
The screen freezes and the
Enter Value for Velocity Cal
box appears (see
Содержание EPOCH 650
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