User Manual

35
Velocity
Resume Showing the velocity range of blood flow, for this product, is actually regulating
the measurable range of blood flow velocity.
Effect After adjustment, the color blood flow image can be displayed more clearly and
accurately.
A lower velocity range should be used to measure low velocity blood flow, andahigher
velocity range should be used to measure high speed blood flow.
Influence Aliasing is easy to occur when measuring high-speed blood flow using a lower
velocity range.
If the speed scale is too high, it will result in the loss of smaller blood flowsignals.
Deflection
Resume Used to tilt left and right color blood flow images to obtain more
information without moving the probe.
Effect Changing the incident direction of the acoustic beam in color mode,
thus changing the angle between the acoustic beam and the direction of
blood flow, is only effective for the linear array probe.
Wall filter
Resume The low frequency noise caused by vessel wall vibration is filtered out to display
the image information effectively. This function is used to adjust the cut-off
frequency of the wall filter in WF-1v Veterinarian Pocket Ultrasound System.
Influence May cause loss of blood flow signals.
Colour frequency
Resume Toggles the probe frequency in Doppler mode.
Effect The higher the frequency, the higher the resolution and sensitivity, but the lower the
penetration force.
Afterglow
Resume Time smoothing is performed to optimize the image.
Base line
Resume An area of zero speed is displayed on the ruler. Adjust to the needs of different tests
to make the blood flow more clear.
Influence This function is effective for real-time, frozen and movie playback images.