1
00:00:04,100 --> 00:00:05,600
This video will show you

2
00:00:05,600 --> 00:00:08,033
how to perform stereo measurement

3
00:00:08,033 --> 00:00:10,400
with the iPLEX NX videoscope.

4
00:00:10,400 --> 00:00:12,266
When you find damage in places

5
00:00:12,266 --> 00:00:14,066
like the inside of a turbine engine,

6
00:00:14,066 --> 00:00:15,866
you need to measure it.

7
00:00:15,866 --> 00:00:17,733
The most important thing
you need to do

8
00:00:17,733 --> 00:00:20,800
is take a good image
from the right distance.

9
00:00:20,800 --> 00:00:27,100
First, I’ll turn on the
spot ranging feature.

10
00:00:27,100 --> 00:00:29,200
These 5 points tell me the distance

11
00:00:29,200 --> 00:00:32,933
from the surface
to the tip of the scope.

12
00:00:32,933 --> 00:00:34,600
The spot ranging is green,

13
00:00:34,600 --> 00:00:36,866
so I’m good to go.

14
00:00:36,866 --> 00:00:38,233
I can freeze the image

15
00:00:38,233 --> 00:00:40,233
to determine if it's
good enough to measure

16
00:00:40,233 --> 00:00:42,600
or go straight to measurement.

17
00:00:42,600 --> 00:00:46,966
First, I need to find
the length of this crack.

18
00:00:46,966 --> 00:00:49,533
Now, I’ll go into measurement mode.

19
00:00:49,533 --> 00:00:50,666
Because I want to measure

20
00:00:50,666 --> 00:00:52,033
the length of this crack,

21
00:00:52,033 --> 00:00:54,433
I’ll select distance measurement.

22
00:00:54,433 --> 00:00:57,066
This box tells me what steps to take.

23
00:00:57,066 --> 00:00:59,000
So now, I’ll place the first point

24
00:00:59,000 --> 00:01:02,133
And fine-tune the placement
with subpixel zoom.

25
00:01:02,133 --> 00:01:05,766
Tapping the arrows moves the cursor.

26
00:01:05,766 --> 00:01:07,800
Here is where I want my first point.

27
00:01:07,800 --> 00:01:10,233
Press Enter to select.

28
00:01:10,233 --> 00:01:12,500
The point I selected
is correctly matched

29
00:01:12,500 --> 00:01:14,833
on the second image, so I’ll continue.

30
00:01:14,833 --> 00:01:17,233
This center box is
telling me to select

31
00:01:17,233 --> 00:01:19,400
my second measurement point.

32
00:01:19,400 --> 00:01:22,866
Press enter to select.

33
00:01:22,866 --> 00:01:24,566
Check that the points are matched

34
00:01:24,566 --> 00:01:27,533
on both images.

35
00:01:27,533 --> 00:01:29,600
Here are my results.

36
00:01:29,600 --> 00:01:31,700
My stereo measurement
result is green,

37
00:01:31,700 --> 00:01:33,866
so I know it’s reliable.

38
00:01:33,866 --> 00:01:36,800
If my stereo measurement
result is yellow

39
00:01:36,800 --> 00:01:39,833
and I can’t get closer
to the surface for green,

40
00:01:39,833 --> 00:01:42,133
the best practice is to
repeat the measurement

41
00:01:42,133 --> 00:01:44,466
a few times and take an average.

42
00:01:44,466 --> 00:01:46,833
Now I’ll take a picture
of the results.

43
00:01:46,833 --> 00:01:49,233
My stereo image is saved.

44
00:01:49,233 --> 00:01:51,266
I’ll be able to see the results later,

45
00:01:51,266 --> 00:01:52,500
repeat my measurement,

46
00:01:52,500 --> 00:01:53,833
and even perform other modes

47
00:01:53,833 --> 00:01:56,000
of measurement on this image.

48
00:01:56,000 --> 00:01:57,400
Thanks for watching.

49
00:01:57,400 --> 00:01:58,866
To learn more about how to use

50
00:01:58,866 --> 00:02:00,866
the iPLEX NX videoscope

51
00:02:00,866 --> 00:02:02,600
contact your local representative,

52
00:02:02,600 --> 00:02:05,500
or visit our website.