JRC Handy Search NJJ-95B Instruction Manual page 60

Remarks
• The display items at the bottom of the screen and their meanings are as follows:
• Peak manual: Peak processing for the result of manual surface wave processing
• Peak fixed: Peak processing for the result of fixed surface wave processing
• Peak deduction: Peak processing for the result of deduction processing
• If "Peak manual" or "Peak deduction" is set without manual surface wave processing or
deduction processing being performed after scanning, the same data as when "Peak fixed" is
set will be displayed.
• If reflected waves shaped as horizontal stripes appear near the surface of concrete after
scanning (with automatic real-time surface wave processing performed), the setting of "Peak
fixed" may cause waves reflected by the reinforcing steel bars to be invisible due to the
remaining horizontal stripes.
In this case, use the following method (1) or (2) to solve the problem:
1.
2.
A: Before processing
Perform manual surface wave processing for scanning results to eliminate
the reflected horizontal stripe waves from the data, and then perform "Peak
manual."
Perform deduction processing for scanning results to eliminate reflected
horizontal stripe waves from the data, and then perform "Peak deduction."
Figure 3-13 Peak processing
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B: After processing