6 Acquiring Images
Basic User Manual 91
■ Scale
Scale is used to adjust the velocity scale.
You can press the Scale switch to adjust the value.
NOTE:
The value of wall filter may change with the scale value.
■ Baseline
Baseline represents the position of zero velocity or frequency. The velocity range in one
direction can be increased or decreased by adjusting the baseline.
You can press the Baseline switch to adjust the value.
■ Wall Filter
Wall filter is used to filter the low frequency noise from tissues, such as the vascular wall.
To adjust the wall filter:
1. Press the function key to select WF.
2. Rotate the function key to adjust the value.
■ Display Format
Display format is used to view the image better.
To set the display format:
1. Press the function key to select Display Form
2. Rotate the function key to adjust the settings.
■ Chroma
Chroma is used to colorize the gray scale image to enhance the discrimination capability.
To adjust the chroma:
1. Press the function key to select Chroma.
2. Rotate the function key to choose a color scheme.
■ Frequency
The probe is capable of receiving a broadband signal with a certain frequency and
bandwidth.
To adjust the frequency:
1. Press the function key to select Frequency.
2. Rotate the function to adjust the value.