5-30 Image Optimization
5.7.3
PW/CW Mode Image Optimization
Gain
Description
This function is intended to adjust the gain of spectrum map. The real-time gain value is
displayed in the image parameter area in the right corner of the screen.
Operation
Rotate the <PW> knob clockwise to increase the gain, and anticlockwise to decrease.
The adjusting range is 0-100 dB in increments of 2 dB.
Gray Map
Increasing the gain will brighten the image and you can see more received signals.
However, noise may also be increased.
PW Sampling Gate
Description
Adjusts the SV position and size of sampling in PW mode, the real-time value of SV
and SVD are displayed in the image parameter area in the right corner of the screen, in
which SV represents the size of the sampling gate, and SVD represents the sampling
depth.
SV size
Rotate the knob under [SV] on the touch screen to adjust the SV size.
Value: 0.5-30 mm.
SVD
Roll the trackball to select the SV depth.
Gray Map
The smaller the SV size becomes, the more accurate the result is; and more
information can be obtained when selecting large SV size.
CW focus position
Description
To adjust the focus position of CW mode.The real-time focus position value is displayed
on the image parameter area in the right corner of the screen in SVD.
Operation
Roll the trackball to select the focus depth.
Image quality
Description
Refers to the transmitting frequency in Doppler mode of the probe, the real-time value of
which is displayed in the image parameter area in the right corner of the screen.
Operation
Rotate the knob under the [Image Quality] on the touch screen to select the different
fundamental wave value.
The adjusting range of basic frequency values can be divided into penetration preferred
(Pen), general mode (Gen), resolution preferred (Res).
Please select the frequency according to the detection depth and current tissue features.
Gray Map
The higher the frequency and the better the force of penetration is, the poorer the axial
resolution becomes.
Scale
Description
This function is used to adjust the speed range of color flow, which is adjusted through
PRF in the system.The real-time PRF value is displayed in the image parameter area in
the right corner of the screen.
Operation
Turn the knob under [Scale] on the touch screen to complete the adjustment.
