5-4 Image Optimization
5.2.3 B Mode Image Optimization
Frequency
Description This function is used to select the operating frequency of the current
probe, the real-time value of which is displayed in the image parameter
area in the upper left corner of the screen, where “F” represents B mode
frequency.
Operation You can select a harmonic frequency or a B mode frequency.
Adjust the frequency value through the [Freq] item in the soft menu, “H”
indicates harmonic frequency. Values of frequency vary depending upon
the probe types.
Select the frequency according to the detection depth and current tissue
characteristics.
Effects The higher the frequency the better the near field resolution but the worse
the force of penetration.
Harmonic imaging enhances near field resolution and reduces low-
frequency and large amplitude noise, so as to improve small parts
imaging.
Gain
Description To adjust the gain of the whole receiving information in B mode. The real-
time gain value is displayed in the image parameter area on the top-right
corner of the screen.
Operations Rotate the <B> knob clockwise to increase the gain, and counter-
clockwise to decrease it.
The adjusting range is 0-100 in increments of 1.
Effects Increasing the gain will brighten the image and you will see more received
signals. However, noise may also be increased.
Depth
Description This function is used to adjust the sampling depth, the real-time value of
which is displayed in the image parameter area on the top-right corner of
the screen.
Operations Use the <Depth> deflector rod in the bottom-right part of the control panel
to adjust the depth.
The adjustable depth values vary depending on the probe types.
Effects Increase the depth to see tissue in deeper locations, or decrease the
depth to see tissue in shallower locations.
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