Olympus EPOCH 1000 Series - 14.7 Freeze; 14.8 Display Grid Modes and Overlays

910-269-EN, Rev. B, June 2011
Adjusting the Pulser Receiver (Phased Array Mode) 251
The EPOCH 1000 Series provides three settings of video filtering:
Off
No filtering applied to A-scan or S-scan.
Low
Minimal filtering applied to both A-scan and S-scan.
High
Maximum filtering applied to both A-scan and S-scan.
To adjust video filtering
1. Choose 1/5 >PA P/R > Video Filter.
2. Use the [UP] and [DOWN] arrow keys or the adjustment knob to switch filtering
settings.
Video filtering can affect measurement readings. Always apply the desired Video
Filter setting prior to instrument calibration.
13.3.3 Digital Receiver Filters
The EPOCH 1000 Series has a total instrument bandwidth of 26.5 MHz at –3 dB. The
instrument has several broadband and narrow band digital filter settings. These are
designed to improve the instrument’s signal-to-noise ratio by filtering out unwanted
high and/or low frequency noise outside of the test frequency spectrum.
The EPOCH 1000 Series phased array mode automatically adjusts the filter setting of
the instrument based on the defined frequency of the phased array probe selected
using the Beam setup page.
To manually adjust the filter settings
1. Choose 1/5 > PA P/R > Filter.
2. Use the [UP] and [DOWN] arrow keys or the adjustment knob to vary the Filter
setting.
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