1. Omniscan Setup - Basic Setup

8/12/2019 1. Omniscan Setup - Basic Setup

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Basic Steps for Setting up

Phased Array Scan on

OmniScan 2.0 SoftwareBy: Nick Bublitz


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Group Wizard

The best place to start is the Group Wizard as it will set many

parameters from other menus in one easy step by step process. The

Group Wizard encompasses the parameters contained in the

Probe/Part menu.


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3

Choose to Modify or Add a Group

Choose modifyto setup first scan or change an existing

group, addto

add another scan using

MultiGroup if you have

this option. With

MultiGroup you can set

up to 8 simultaneous

scans as well as

multi-probe applications.


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4

Define Your Part

Choose plate if flat. Select material for anapproximate velocity determination. Enter part thickness.

By entering a true part thickness you enable the Omniscan

to calculate true depth/thickness readings off of leg skips

and multiples.


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5

Select Group Type

PA for phased array, UT for conventional

ultrasound connected through the phased array connector.

To use the PA channels as conventional channels off of the

PA connection you will require an adapter to break out the

individual PA channels.


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6

Choose Connection

Choose applicable pulser/reciever connections. If youhave one probe connected via the PA connection, the

OmniScan will disable this selection. With an extension

cable or Y-adapter you can choose the connection.

When using multiple probes on a

16:128 via the Y-adapter, probe 1

will be elements 1-64,(con. 1),

probe 2 will be 65-128 (con.65).


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7

Select Probe

OmniScan probes willAuto detect.

If using a non-OmniScan

connector probe-you must

toggle off auto detect first

and then select your probe.

Select probe by case style,

then by model number-(inscribedon probe case).


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Select Wedge

Select your wedge fromthe list.

Select wedge by case style then model number-

labeled on wedge

Custom Wedge files entered

into the OmniScan will appear

in the User field selection.


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Define Offsets

Useful for taking readings froma reference position, ex: side

of plate and weld centerline.

Input offsets in applicable axis

as needed.

Skewchange to reflect side

from which inspection is done

from.

Proper offset input is critical

for data correlation in encoded

scans and volumetric

readings.


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End of Wizard

Press Continue tocontinue

into the Law (Focal) Wizard

The Focal Law

Wizard willencompass the

Focal Law menu

parameters.


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Choose Your Scan Type

Sectorial Scan-multiple angleinspection ex: 35-70 degree

shear wave with an angle

beam wedge

Linear Angle-1 fixed angle

being rastered through the

probe- ex: 45 degree SW that

begins in the back of the

probe and rasters forward

to the front. Mimics moving

a 45 degree conventional probe

forward and aft.

Linear at 0- For o degree

encoded scans where you

will overlap in the index axis


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Choose Wave Type

Shear Wave orLongitudinal Beam- the

approximate values will

be displayed based on

your material selectionin the last wizard.


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Select Probe Elements-Sectorial Scan

Must define Aperture Size(element quantity)

-groups of elements that will

fire together to form an

individual beam.

As well as where in the

probe to start firing-element 1

is almost always

in the back of the probe.

In Sectorial scans we choose 1 group of elements that will be

repeatedly pulsed to form our entire angular sweep.Ex:35-70

-the aperture will fire a beam at 35, then 36, there is nomovement along the probe


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Select Probe Elements-Linear Scan

In addition to aperture (element Qty.) and a start element (firstelement), in Linear scans we must also define where to

stop the electronic raster (Last Element). We must also

define how to move through the probe between pulses

(element step).With an Element Qty. of 16, first element of 1, last element 64,

and Element step of 1 the Omniscan will:

First pulse: fire elements 1-16 to form a beam at chosen angle

Second Pulse: move 1 and fire 2-17 ,Third pulse: move1 and fire 3-18

This will continue until we reach our stop (49-64) and repeat.


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Choose Your Angle(s)

Sectorial Scan-choose astart (min) and stop (max)

angle for the scan. ex: 35 min

70 max will create a 35-70

Degree Sectorial scan.

Linear Scan-choose 1 angleto be rastered through the

probe. Ex: 45 degree linear

Scan.

Angle Step-1 degree step for the above Sectorial

will fire a beam at and display data from every1 degree between 35 and 70 degrees.= (.1, .5, 1 degree options are

common) 1 degree step is usually sufficient. Angular distance between

beams fired. This will be disabled for Linear scan.

Focus Depth- Choose a depth to focus at, limited to Near Field for

true focus.


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Generate Focal Law


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Data- File/Save Mode Menu

Choose how you would liketo record data.

Inspection Data-full a-scaninfo for post processingetc, larger data files-

recommendedScreen- Jpg. of screen for

custom report

Also indication table and

report options but thesecan be generated from theInspection Data duringpost analysis.


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Format Report- File/Format and File/Report Menus

Choose the items to beincluded in the report

if one is generated.

For most detailed report turn on allfields and choose table for defect

table and screen shots of each

indication selected by the operator..

Can also add notes, headers, and

user fields to meet your specific needs.


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Display-Display/Selection Menu

Choose the display youwant to view whilescanning.

If using c-scan define the

type.

With a MultiGroup filedefine whether onlythe selected group(current) or all groupswill be displayed.


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Display-Display/Overlay Menu

Turn on/off useful features like reference lines(overlay), analysis cursors, gates, sizing

curves etc. Also change the UT unit- true

depth, sound path, time, to fit yourinspection.


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Choose an Inspection Range-UT Settings/General

Menu

Define the start and width of your range. Gain can also be

adjusted from this menu.


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Pulser-UT Settings/ Pulser Menu

Configure Pulser settings.For most inspections set

voltage to low at first.

Can usually leave PRF and

PW to optimum as the softwarewill optimize based on

scan setup parameters.


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Receiver-UT Setting/ Receiver Menu

Usually set receive filter to Autofor most inspections and the

software will narrow the

bandwidth to the probe

connected.Choose rectifier.

Choose averaging if needed.

Video filter will clean up

both A-scan and imagedisplays. Video filter can

not be used for RF

selection.


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Preferences-Pref. Menu

Can adjust screenbrightness (up to 75%

on battery, 100%

on AC),

indoor/outdoor

scheme, and choose

English or metric units


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Readings Fields-Measurements/Reading Menu

There are two lists toconfigure with real time

readings that will also be

included in the report and

defect table.Predefined groups have

been formed for many of

the common inspections.

Toggle between lists


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Gate Settings-Gate/Alarm- Gate and Alarm Menu

3 gates- A,B, I available witha variety of ways to configure

Including alarms and operators

for and/or type situations.

In the gate menu toggle

parameters setting to switch

between position or mode

parameter adjustments.


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Scan Menu-For Encoded Scans

Encoder Menu-choose encoder, set polarity (direction oftravel), type of encoder, resolution, start point of scan.

Inspection Menu-Choose type of scan, clock or encoder, and

view scan speed.

Area menu- define length and width of scan in each axis andset resolution.

Start Menu-Define what to do upon start acquisition input

Data Menu- Define data parameters for storage


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Calibrations

Add Calibrations to yoursetup and you are

ready to go!

Velocity

Wedge Delay

Sensitivity

DAC/TCG

Code Dependant


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Documents

1. Omniscan Setup - Basic Setup