Table of Contents
Advertisement
2.7.5.2 Reform Echo: Smooths jagged peaks in the echo profile. Reforms fragmented echos into one echo
2.7.5.3 Average Amount: The fraction of the old shot data that is kept for averaging purposes. A higher value will
give a smoother profile at the expense of a slower echo profile response.
Values: 0.0 to 1.0; Default 0.75
2.7.6 Echo Quality
2.7.6.1 Confidence: Indicates echo reliability: higher values represent better echo quality. The display shows the
echo confidence of the last measurement. Echo Threshold (2.7.3.2) defines the minimum criterion for echo
confidence.
Values: 0 to 99
2.7.6.2 Echo Strength: Displays the absolute strength in dB above 1 uV rms) of the echo selected as the .......
measurement echo.
Values: -20 to 99
2.8 TVT Setup
2.8.1 Auto False Echo Suppression: Recommend setting via local operation using the Auto False Echo Suppression
Wizard. Used together with Shaper Mode (2.8.4) to screen out false echos in a vessel with known obstructions. A '
learned TVT (time varying threshold) replaces the default TVT over a specified range.
2.8.2 Auto False Echo Suppression Range: Defines the endpoint of the Learned TVT distance. Units are defined in
Units (2.2.1) Used in combination with Auto False Echo Suppression.
Value Range: 0.00 to 45.00 or 105.00 m (depending on model); Default 1.00 m
2.8.3 Hover Level: Defines how high the TVT (Time Varying Threshold) is placed above the noise floor of the echo
profile, as a percentage of the difference between the peak of the largest echo in the profile and the noise floor.
Value Range: 0 to 100%; Default 40%
2.8.4 Shaper Mode: Enables/Disables the TVT shaper. ON or OFF; Default is OFF
2.9 TVT Shaper:
Adjusts the TVT (Time Varying Threshold) at a specific range (breakpoint on the TVT). This allows you to
reshape the TVT to avoid unwanted echoes. There are 120 breakpoints.
Value Range: -50 to 50 dB; Default 0 dB
To use via LDI
1. Go to Shaper Mode (2.8.4) and Select ON
2. Go to Breakpoint 1-9 (2.9.1)
3. Open Shaper 1 and enter the TVT Offset value (between -50 and 50)
4. Go to the next Shaper point and repeat steps 3 and 4 till all desired breakpoint values have been entered.
2.9.1 Breakpoint 1-9
2.9.2 Breakpoint 10-18
2.9.3 Breakpoint 19-27
0 = OFF
greater = wider
Range: 0 to 255 samples
Recommended 10 samples
26
www.bindicator.com
MPR180416 Rev. B
Advertisement
Table of Contents
