U L T R A S O N I CP O R T A B L E

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UUDD33��7711FLAW DETECTOR

IT IS APPLIED IN THE FOLLOWINGBRANCHES OF INDUSTRY

PURPOSE UD3�71 flaw detector is an ultrasonic gener�al�purpose flaw detector which is intended for:• manual non�destructive testing of products

for detection of defects such as discontinu�ity and inhomogeneity of material in rawstock, finished items, in�process goods, wel�ded, soldered, bolt, riveted and other joints;

• measurement of defects depth and depthcoordinates;

• measurement of various items thickness atone�way access to them;

• measurement of signals (reflected fromdefects) amplitudes ratio;

• measurement of equivalent defects dimen�sions;

• assessment of sound velocity in sundrymaterials.Flaw detector is able to test materials and

products with sound velocity from 1500 m/s to12 000 m/s.

UD3�71 ultrasonic flaw detector providesthe testing of weld joints and base materials, andalso thickness measurement of monometals,bimetals in correspondence with the regulatorydocuments requirements in various industrialsectors.

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• testing of aeronautical engineering parts and ele�ments (area of two eyes of "Actuator Beam Arm"undercarriage component, carriage spindles,walls of the front pressure bulkhead, mail wheelhub, shock�absorber pistons of the main under�carriage, fastener assemblies of the undercar�riage suspension, blades of "AB" propellers,studs of "АB" and "CB" products bodies, cou�pling bolts of the wheel hub, tool interface of thehub unit bearings etc.);

• AIRCRAFT

• RAILWAY TRANSPORT

• OIL�AND�GAS

• CHAMICAL

• ENGINEERING

• testing of rail parts and car units (parts of thewheel pair and axlebox unit, load trolleys,refrigerated carriages and coaches, automaticcoupler, bolts, suspension brackets etc.);

• testing of pipelines, vessels etc.;

• testing of pipelines, industrial tanks etc.;

• testing of metalwares, forming rolls, sheet metalsetc.

• Min. instrument dimensions � no more than188х107х78 mm � assure high instrument ergo�nomics and operation simplicity.

• Various A�scan display forms: RF/full wave/ +half wave/�half wave;

• Dynamic change of generating path characte�ristics depending on the switched�on frequencyfilters;

• Information display forms: А�scan, B�scan, orthogonal views, corrosion map;

UD3�71 FLAW DETECTOR ADVANTAGES

• USB slave;• Flaw detector can be operated at the ambient tem�

perature from minus 30 to +50 0С.• Flaw detector case protection level from solid

bodies and water penetration corresponds toIР65; flaw detector is also resistant to ionizingradiation impact and is meant for operation inincreased humidity conditions.

• Availability of two independent measurement gateswith the defects alarm system (sound and light)by each gate. At the same time, every gate has:

"REFLECTIONS MARKING" mode helps toimagine the detected defect location in the testingitem in the same direction as ultrasonic beams(straight and multiple�reflected beam).

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DAC mode is an alternative to TCG mode andenables to plot the curve which connects points (cor�responding to signals peaks) on the screen, and alsoto plot up to 2 additional curves which is the presetvalue dB distant from the base one. DAC mode alsoallows quick and convenient TCG curve plotting.

• "REFLECTIONS MARKING" MODE

• DAC AMPLITUDE CURVES MODE

THREE GOING�OFF LEVELS: "ACCEPTANCE"; "REGISTRATION"; "SEARCH" are marked on flaw detector screen in

"RED", "BLUE" and "GREEN" color. The colors of lightALARM by every gate correspond to them. Applicationof three�level gates makes it possible to estimate therisk of detected defects.

• the sound alarm going�off level is set up byan operator by a specific gate.• the mode (when the preset level is transcend�ed or not) is set up by an operator for every gateindependently.

When using three�level gates it is possible to reg�

ister echo�signals at different levels relative to the

acceptance level. It will permit to record echo�signals

from developing defects and monitor defects in the

program of testing results viewing what is necessary

for carrying out ultrasonic testing (UST) of important

objects. Three�level gates as well as convenient sound

and light defect alarm system allow to assess the

detected discontinuity dimensions quickly and qualita�

tively.

TCG level is set up in the point grid connectedby linear sections, i.e. it is possible to set sundryTCG curve forms � piecewise�linear, step etc. TCGlevel corresponds to the signal attenuation in thegiven point relative to the set gain value. This optionallows to test long�length items and items madefrom materials with great attenuation, it is also usedfor sensitivity setup when testing weld joints with wallthickness of more than 12 mm.

• TIME CONTROL GAIN (TCG) MODE

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• SPECIAL PROGRAM INTERFACE MODE

This mode is applied for solving special�purpose

tasks. For example, when testing various single�type

parts or when the part has many testing area. For

solving this task "Special program interface" system is

used in UD3�71. The necessary standard setups and

program interface of "Special program interface" enter

flaw detector from PC. The input setups are protected

from illegal change by NDT inspector (operator).

Mode of connection to PC is essential for datatransmission from the flaw detector memory to thecomputer memory and vice�versa. It is used for trans�mitting "А�scans" and "B�scans" to PC for reportscreation on the basis of testing results or databases.

If required, the user can input setups for specific test�ing types in flaw detector from PC via in�built USBport what considerably reduces the time of flawdetector preparation for testing execution.

• MODE OF CONNECTION TO PC

• MEASUREMENT OF EQUIVALENTDEFECTS DIMENSIONS (DGS DIAGRAMS)

"Peak" mode is indispensable during small

defects search, operation in unstable acoustic cou�

pling conditions. Upon that, the current signal value is

displayed on the screen concurrently with the max.

signal envelope of all observable echo�signals (dis�

played in red color). This mode is applied for max.

echo�signal amplitude determination and conditional

length estimation. It can be used for testing results

registration both for rejected and in�order items, what

will confirm the presence or absence of defects

throughout the whole scanning perimeter.

Thus, "Peak" mode application increases results

reliability and reduces testing time.

• "PEAK" MODE

UD3�71 flaw detector distinctive feature is the

measurement of equivalent defects dimensions.

Using DGS diagrams UD3�71 flaw detector enab�

les to measure equivalent defects dimensions in the

range from 0,8 to 20,0 mm (equivalent defect diame�

ter) with relevant error which does not exceed 15 %.

Availability of the algorithm (built in flaw detector

software) of automatic plotting of DGS diagrams for

various probes types makes it possible to analyze the

received data quickly and qualitatively and determine

equivalent dimensions of the detected discontinuities

with their further registration. To save the time which

is used for the instruments setup, UD3�71 instrument

software contains the function of automatic TCG curve

plotting by DGS diagram plotted for a specific probe.

EXAMPLES OF THE FLAW DETECTORAPPLICATION IN THE AIRCRAFTINDUSTRY

• ULTRASONIC TESTING OF THE FAS�TENER ASSEMBLIES OF UNDER�CARRIAGE SUSPENSION OF BOE�ING�737 AIRCRAFT:

• ULTRASONIC TESTING OF THEBLADES OF "AB" PROPELLERS:

• ULTRASONIC TESTING OF THE STUDS OF "АB" AND "CB"PRODUCTS BODIES:

When carrying out routine maintenance of the

fastener assemblies of undercarriage suspension of

BOEING�737 aircraft, ultrasonic testing of parts is

performed from the cylindrical surface with a special�

purpose probe, which comprises several wedges with

different refracted angles of transverse ultrasonic

waves in the part under inspection, and a special�

purpose small�sized probe with frequency of 5 MHz.

Ultrasonic testing of the blades of "AВ" propel�

lers for detection of surface and subsurface defects,

such as fatigue cracks, mechanical damages, non�

metallics and corrosion damages, is performed with

the usage of P121�1,25�90�003(004) and P121�1,8�

90�003(004) contact single crystal probes of surface

wave having frequencies of 1,8 MHz and 1,25 MHz

and wedge angles of 600 and 630, respectively. The

whole screw surface is inspected in several stages by

the areas ≈ 400 mm.

Ultrasonic testing of the studs of "АB" and "CB"

products bodies in operation during motor�bench

tests and repair can be carried out without disman�

tling of studs from the products.

P111�5�К6�ММ�003(004) special�purpose

small�sized ultrasonic contact probe was specially

developed and produced for this purpose. An addi�

tional bracket�holder of the probe allows the probe

placement on the testing surface of studs without

removing terminal caps, what enables the manhours

reduction during routine maintenance.

Ensounding of studs metal is performed with

longitudinal ultrasonic waves. The equipment is set

up using the enterprise calibration block made from

18Х2Н4ВА grade steel. The block has testing reflec�

tors of 1,0 mm, imitating the cracks located at vari�

ous depth.

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ADDITIONAL SOFTWARE

Ultra UDх�7х � the program intendedfor processing testing results of UD3�71 ultrasonic flaw detector and servesfor functionality extension and increaseof instrument operation comfort. Thepresent program assures operationwith the data stored on PC

Memory elements operation enables toperform the following functions:

• VIEW: setups, А�Scans and B�Scans• CREATION AND EDITING: Setups• REPORT PRINTING BY: А�Scans and B�

Scans

А�Scans SetupsB�Scans

• REPORT PRINTING BY: А�Scansand B�Scans

• TESTING OF THE WALL THICKNESSOF HOLLOW COOLING BLADES:

The testing of one of the most crucial elementsof the engine (stator and rotor blades of gas turbine)is the task of the increase of reliability and lifetime ofgas�turbine engines. They should survive high tem�perature for many hours without loosing its mechan�ical strength. First of all, it concerns the turbineblades they receive the flow of burning hot gases,heated to the temperature of more than 1600?K. Thecooling hollow of irregular shape is created for theblade to be operated under such conditions. The taskof wall thickness testing of hollow cooling bladesbecomes particularly urgent. P112�10�2?3�004 spe�cial probes with frequency of 10 МHz were developedfor this purpose, allowing the testing of wall thicknesson 1,5?6 mm blade area. At the same time, the wallthickness can be inspected from 0,6 mm to 4 mmboth from convex, and concave surfaces.

• Max. scan range inch 236,22;mm 6000;

• Min. scan range inch 0,039;mm 1;

• Velocity in the material inch/μs from 0,0025 to 0,0375;m/s from 1000 to 15000;

• Scan delay inch 472,44;mm 12000;

• Delay (in the wedge) μs from 0 to 100;• Frequency МHz from 0,4 to 20;• Initial pulse frequency Hz from 30 to 1000;• Operating modes А�scan, B�scan;• Gain dB from 0 to 100;• Signal detection radio signal (without detection);

double half�wave;positive half�wave;

negative half�waves;• Noises cutoff % from 0 to 80;• Gates Two independent three�level

measuring gates;Two additional special gates;

• Measurement modes Peak, Front;• Reconfigurable readings in А�scan distance by the beam;

amplitude in gates;defects depth coordinates;

equivalent defect dimensions

• Measurement resolution inch 0,00039;mm 0,1;

• Defect alarm sound, light, visual;• Setups quantity 100;• Languages and interfaces English, Russian, Chinese;

(additional languagesare possible to the customer's order);

• Units SI system units;• Connection to PC USB port;• Battery Storage battery Hi�MH;

12V/2500 mА.h;• Operation time from the battery hour at least 8;• Power supply from AC network single�phase network;

230 V, 50 Hz.;• Screen Color TFT;• Screen size, W x H inch 2,756 х 1,969;

mm 70 х 50;• Screen resolution, W x H pixel 320 х 240;• А�scan size, W x H x D pixel 320 х 200;• Overall dimensions inch 8,27 х 3,94 х 4,33;

mm 210 х 100 х 110;• Weight lb 1,764;

kg 0,8;• Operating temperature 0F from �22 to +122;

0C from minus 30 to +50;• Protection from environmental impacts IP 65 according to GOST 14254;

TECHNICAL SPECIFICATIONSparameters units values

“PROMPRYLAD” P.O.Box 43, Kiev 04080, Ukraine,tel./fax: +38 044 467�51�38(39)

E�mail: ndt@In.com.ua www.ndt.com.ua

parameters units values

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