GE FC091194, Руководство по обслуживанию

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GE M
EDICAL
S
YSTEMS
D
IRECTION
FC091194, R
EVISION
02 V
IVID
7 / V
IVID
7 PRO S
ERVICE
M
ANUAL
4 - 22 Section 4-3 - Functional Checks
4-3-4-6 2D Soft Menu Controls
4-3-4-7 Check Compress, Contour, Reject and Tilt
Table 4-9 4-way rocker used for Soft Menu control
KEY DESCRIPTION
A 4-way rocker (4-way multi direction switch) used to;
- access mode-specific menus on the screen.
- select a menu option.
- adjust option-related values.
When using the Rocker;
- the vertical arrows are used to select the menu options.
- the horizontal arrows are used to adjust the values.
Table 4-10 2D Mode: Check Compress, Contour, Reject and Tilt
Step Task Expected Result(s)
1.
Use the vertical arrows to select Compress.
Use the horizontal arrows to adjust Compress.
Compress controls the amount of contrast in the 2D
image.
An index number is displayed in the status window to
indicate the relative level of compression.
2.
Use the vertical arrows to select Contour.
Use the horizontal arrows to adjust Contour.
Contour controls image processing related to the
extent of edge enhancement applied to an image.
3.
Use the vertical arrows to select Reject.
Use the horizontal arrows to adjust Reject.
When Reject is increased, low-level echoes and noise
are rejected and appear darker in the 2D image.
An index number is displayed in the status window to
indicate the relative level of rejection.
4.
Use the vertical arrows to select Tilt.
Use the horizontal arrows to adjust Tilt.
Tilts the axis of the 2D image to the left or right.
By using this control in combination with Angle control,
the image can be “aligned” to the direction of interest,
and frame rates be optimized.
By default the axis of symmetry of a 2D image is
vertical.