mx2 training program 06 intro to sector scan display

8/19/2019 MX2 Training Program 06 Intro to Sector Scan Display

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OmniScan MX2 Training Program

Introduction to the MX2 S-scan Display


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Introduction to the S-scan Display – S-scan Overview The true depth S-scan display is the primary display used in phased

array inspection for flaw characterization, volumetric location, depthand height sizing

The S-scan allows all focal laws !"-scans# for the group to $e viewed

in one display corrected for true depth or uncorrected, and

superimposed over a weld overlay


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Introduction to the S-scan Display – S-scan Overview cont

The S-scan display interacts directly with the "-scan display through

movement of the $lue data cursor They are lin%ed together "ll of the information availa$le in the "-scan is availa$le in the S-scan

&othing is lost

The S-scan is necessary $ecause it is not possi$le to interpret many

individual "-scans simultaneously


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S-scan Display !T Modes – True Depth vs !ncorrected In the e.ample $elow we see two identical sector scan groups !34-56 degrees# 0ne

displayed with *T mode uncorrected !1eft# and the other displayed in true depth

!7ight#

"dvantages of the uncorrected S-scan display is that it uses (66+ of the availa$le

pi.els in the window, all focal laws have the same range, and gates on this display

have the same affect as $eing in sound path

" disadvantage of the uncorrected S-scan is that it does not allow for weld overlays

and can $e difficult to orientate the data to the component without more practice ande.perience

!T Mode "

!ncorrected!T Mode "

True Depth


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S-scan Display !T Modes – True Depth vs !ncorrected cont

"n e.ample of an application that $enefits from the uncorrected S-scan

display is the phased array version of the 8S9 ID creeping wave crac%detection

Multiple signals are reuired !1-wave, :(, :2# for flaw interpretation that

are much easier to identify and measure when not in true depth mode


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S-scan Display Depth Modes – #urrent $aw vs %ll $aws

8hen the S-scan *T mode is set to true depth, the interaction with the *T range

can $e set to the following two options under depth'( urrent focal law !ictured left#

2 "ll focal laws !ictured right#

8hen the depth mode is set to

current focal law, the range is

set for the current law !"-scan#

and e.trapolated in sound path

to the rest of the laws

8hen the depth mode is set to

all focal laws, the range is set

so that all laws terminate at

the selected depth entered :ach mode has advantages

for optimum use of window for

data and how gates can $e

positioned


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S-scan Display - S-scan and %-scan Interaction Overview

The S-scan and "-scan interact directly with one another They are lin%ed

together 8hen the $lue data cursor on the S-scan scan is moved, the "-scan display

will update to the same focal law

There are 3 ways to manually manipulate the data cursor on the S-scan

display

; Drag and drop it directly on the display with the touch screen !"lways active regardless oftouch screen mode#

; Drag and drop it with a *S< mouse !"lways active regardless of touch screen mode#

; Move it $y use of function %ey and rotary %no$ !referred method#

; Move it $y entering the angle or focal law in Menu=Measurement=ursor=ategory=Data=

"ngle

&ormally the "-scan display displays only one "-scan "ll "-scans within thegroup can $e displayed simultaneously as a function of the data source

e.plained later in this section

"dditionally, there is a data source option that allows auto "-scan update

$ased on gate " !7ed# data for highest amplitude or shortest time of flight


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S-scan Display - S-scan Data Selector &unction 'ey In addition to dragging the data cursor on the touch screen or with a *S< mouse,

the ne.t easiest way to manipulate it is with the data selector function %ey and scroll

%no$ This is the preferred method " short stro%e of the data selector function %ey displays and ena$les the angle

window in the upper left hand corner of the MX2 display

:.pert use of the MX2 reuires familiarity and fast interaction with the function %eys

and scroll %no$

*se of the function %eys

and scroll %no$ is the

fastest easiest way to

perform many functions

and can $e done at any

time without changing the

current menu ractice

with the function %eys is

highly recommended


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S-scan and %-scan Interaction – %uto Data Source (ighest)Thinnest

8hen the data source is set to highest or thinnest, the S-scan data cursor

will automatically trac% display the "-scan of ma.imum amplitude !>ighest#or shortest time of flight !Thinnest# signal in gate "


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S-scan and %-scan Interaction – Data Source (ighest Movie


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S-scan and %-scan Interaction – Data Source %ll $aws

8hen data source is set to all laws, the S-scan data cursor will

dynamically trac% the highest amplitude signal in gate ", and the "-scan will display the sum of all focal laws in the group

%ll laws*ormal +One law,


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OmniScan MX2 Training – S-scan and %-scan Interaction Practice

The following e.ercise demonstrates the display and data cursor functions of the S-

scan with "-scan interaction, and use of the data selector function %ey

*sing the same pro$e, wedge and configuration from the previous section, place the

pro$e on any reference standard with a SD> or notch and move the pro$e so that

the target is in the middle of the display and inside the red gate "

rior to starting the e.ercise your display should loo% similar to $elow


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( Select Menu=Display=1ayout=S-scan

2 hange the S-scan display to uncorrected $y selecting Menu=Display=*TMode=*ncorrected &otice the display change

) hange the S-scan display $ac% to true depth

3 Select Menu=Display=1ayout="-S-?@ &otice the display change

4 hange the range depth mode $y selecting Menu=Display=Depth="ll 1aws

A hange the depth mode $ac% to current law

5 Move the $lue data cursor on the S-scan display $y dragging and dropping it directlyon the touch screen to a different focal law &otice the "-scan display change

B Move the data cursor $y selecting Cunction %ey=Data selector and the movescroll %no$ Select enter to accept the position

hange the data source $y selecting Menu=Display=Data Source=>ighest+

(6 The display will provide a warning that current data is erased Select 9es

(( Move the pro$e and o$serve the S-scan data cursor and "-scan automaticallytrac%ing the target in gate "

(2 hange the data source $y selecting Menu=Display=Data Source="ll 1aws &oticethat all "-scans are visi$le in the "-scan display

() hange the data source $ac% to normal

OmniScan MX2 Training – S-scan and %-scan Interaction Practice cont


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OmniScan MX2 Training – Introduction to S-scan Movie


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mx2 training program 06 intro to sector scan display

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