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Dakota Ultrasonics
DETECT MARK: Selectable graphics option for the point of detection on the
waveform: Line, Box, Dots, None. Offers the user a graphics preference on how
they prefer to view the detection on the waveform.
GRATICULE: Selectable graticule display options for the entire screen. Overall
'look and feel' of A-Scan graphic area (Lines, Dots, Mix, Point). Refer to page 140 for
further info.
4.6 TUNE – Menu
GAIN: The MAX II has 100dB gain range from (-30 to 70 dB), used in conjunction
with the attenuator feature above. This feature is used to increase/decrease the
power or amplitude of the signal. This might easily be considered as similar to
turning the volume up or down on a stereo receiver. Refer to page 116 for further
info.
PULSE: The DFX-8 has an adjustable pulse width for both high penetration and
resolution applications. The pulse width refers to the duration of time the pulser is
on. There are three different types of pulsers built into the MAX II – Spike, Square
Wave, and Tone Burst with adjustable voltage options of 100-400 volts and select
settings of Spike, Thin, Wide, HV Spike, HV Thin, HV Wide, TB 10MHz, TB 5MHz,
TB 2MHz, and TB 1MHz. Refer to page 151 for a further explanation.
PULSER VOLTAGE: Adjustable voltage of 100-400 volts, depending on the pulser
option selected. The standard setting is 150 volts. This enables the MAX II to offer
greater penetration for difficult material types, or increased resolution on noisy
materials. Refer to page 143 for a further explanation.
DAMPING: Provides the user with multiple input impedances to match the
impedance of the transducer, and optimized overall transducer performance. Refer
to page 145 for further info.
DIGITIZER: Increases the measurement resolution by 2x or 4x by increasing the
number of shots/samples. The higher the sample digitizer rate, the better the
resolution, but the slower the update rate/speed and vise versa. Refer to page 146
for a further explanation.
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