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Chapter 3. Making Measurements
86
USM Go Operator’s Manual
3.8.1
Working with DAC Mode
In
DAC
mode the instrument uses the user-input reference points to create a curve representing the amplitudes of echoes representing
same-size reflectors at varying material depth. The recorded point data is stored until replaced or edited. To create a
DAC
curve and operate
in
DAC
mode:
1.
With the
DAC/TCG
menu accessed, select the
SETUP
submenu.
2.
Use the
TCG/DAC MODE
menu to activate the
DAC
function. The
DAC
Curve appears whenever operating in
DAC
mode.
3.
The
DAC
curve can appear either as a series of straight line segments joining the stored
DAC
points or as a curved (linear in gain) line
based on these points. Access the
DAC TYPE
function in the
SETUP
submenu to display the desired
DAC
curve type.
Note:
To operate in
TCG/DAC
mode, a
DAC
curve must first be generated. After the
DAC
curve has been generated, the
TCG
mode can
be accessed by setting the
TCG/DAC
function value to
TCG
.
Note:
When rectification is set to
RF
, reference lines are not displayed.
Summary of Contents for Ultrasonic USM Go
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