Blanking in the dual-echo mode:
1. Initial-blanking: red blanking line indicated on the screen, starting at
zero, so named initial blanking. Waveform with the scope of red strip is
invalid, for omitted the clutter between the starting point and the first
echo.
2. E-blanking (echo-blanking): blue blanking line indicated on the
screen, only appearance when successful measuring. Starting at the
first echo measurement point, so named echo-blanking. Waveform
within the scope of blue stripe is invalid, for omitted the clutter between
the first echo and secondary echo.
3.8 Interface wave-Echo Mode
Interface wave mode makes use of interface wave and echo to
measure the thickness of the work piece. This method has wide-range
of measuring, the upper limit can reach to 27mm.
3.9 Multiple-wave check method(High Precision Mode)
PM-5 series provides Multiple-wave check method, the measurement
range is 0.2mm-10mm. According to 3(Min. times) to 9Max.times) times
echos every time when measuring, the more measuring times, the
higher precision will get. Furthermore the reading values are all through
checkout, to make sure the results are accurate.We recommend to use
this mode when measuring super thin and high precision work piece.
3.9.1 Illustration of Multiple-wave check mode
3.17 Multiple-Wave Check Mode
1
—
Identification of multiple-wave mode 2
—
red arrow indicates the
first echo that participates in verifying 3
—
blue arrow indicates the last
echo that participates in verifying 4
—
M indicates the numbers the
participates in verifying
This picture shows A-scan snapshot wave of measuring the wall
thickness of fire extinguisher under Multiple-wave check mode. The wall
of the fire extinguisher is very thin and has paint coating as well, which
make it difficult to measure by using the normal thickness gauge.
Through using Multiple-wave check mode of PM-5DL, we can see from
the picture that there are 9 verifying waves to make sure the measuring
result accurate and stable.
3.10 AUTO Mode
The unique Auto mode of PM-5 series measurement range is from
0.2mm-27mm. On the basis of thickness, it selects the measuring
model automatically. When H≤10mm, it adopts ME-E measuring mode;
when 0.2mm<H<=15mm, it adopts I-E measuring mode; and when
H>2mm, it adopts P-E mode. Under this mode, the user only needs to
adjust the Gain. It is easy to operate, we recommend the common users
to adopt this mode. H is the thickness of the material to be measured
4.Date Storage Function
（
PM-5DL
）
PM-5DL adopt the storage mode of micro-grid format, it can save one
hundred thousand thickness values and one thousand A/B-scan
wave-forms, waveform and thickness values can be mixed stored in the
same file. The measurement data files can be transferred from the
instrument to a PC via USB communication to generate EXCEL or TXT
format files. Using our powerful Data View software to statistical and
analyze measurement, report via connect printer.
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