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No. 99MBC095A
5.3.2 Measurement of magnet coil wire that runs at high speed
This instrument makes 1600 scans per second, which makes it possible to make high accu-
racy measurements of workpieces that move at high speed and vibrate.
In the wire drawing process or coating process in which the wire OD must be precisely
controlled, it is usual to feed back the OD measurement data so that the diameter of the wire
can be controlled to within the tolerance limits. To avoid a significant change in the feed-
back, it is most common to use the moving average.
Below is an example of magnet coil wire with a diameter of ø0.05
± 0.001
mm (50 ± 1 µm):
• Basic setup
1. GO/NG judgment and analog output specification in the ready state
In the ready state, specify that GO/NG judgment and analog output be performed.
2. Averaging method
Specify the moving average.
3. Method of GO/NG judgment
Specify (target value + tolerance)
In addition, set so that the target value can be copied onto the reference value.
4. Other settings
Set as required for the operation environment.
• Function setup
1. Segment = 2
2. Number of scans for averaging = 512 (or, 1024 or 2048 times)
3. GO/NG judgment
a. Target value = 0.05 mm
The same value will be automatically set for the reference value. If the scale number
has not been set (i.e. 0), it is set to “1”. If it has been set, it is not changed.
b. Lower tolerance limit = -0.001 mm
c. Upper tolerance limit = 0.001 mm
• Measurement
PROG
BUSY
RUN
+NG
GO
-NG
If the power is on, measurement automatically starts
after the internal error checks have been performed. The
measured data will be displayed. At the same time the
GO/NG judgment result will be outputted for the GO/
NG LEDs and I/O interface. The difference from the
target value will also be outputted as analog signals.
Record of analog output
Record of analog output will facilitate process analysis.
