What is Ultrasonic Phased Array?

Phased Array technology is the ability to modify electronically the acoustic probe characteristics. Probe modifications are performed by introducing time shifts in the signals sent to and received from individual elements of an array probe. Any Ultrasonic techniques for flaw detection and sizing can be applied using Phased-Array probes.

Phased Array provides high speed electronic scanning without moving parts, improved inspection capabilities through software control of beam characteristics, inspection with multiple angles with a single electronically controlled probe, many configurations; P/E, T/R, TOFD and Tandem, and greater flexibility for inspection of complex geometries (optimized focusing and optimised beam angle).

Phased Array can be used for the following applications; raw material production, aircraft, naval, power generation, petrochemical and anything else that currently applies pulse-echo testing.

What are the responsibilities of a individual who is certified to Ultrasonic PA Level 2?

An individual certified to UT PA Level 2 has demonstrated competence to perform NDT according to UT PA procedures. Within the scope of the competence defined on the certificate, Level 2 personnel may be authorised by the employer to:

  • Select the UT PA technique for the test method to be used;
  • Define the limitations of application of the testing method;
  • Translate NDT codes, standards, specifications and procedures into NDT instructions adapted to the actual working conditions;
  • Set up and verify equipment settings;
  • Perform and supervise tests;
  • Interpret and evaluate results according to applicable standards, codes, specifications or procedures;
  • Prepare UT PA written instructions
  • Carry out and supervise all tasks at or below level 2;
  • Provide guidance for personnel at or below level 2, and
  • Report the results of UT PA test

UT Phased Array Level 2 training at Lavender International covers the following:

General Theory:

  • Principles of Phased Array probes
  • Principles of inspection sensitivity
  • Phased Array Instrument
  • Scanning with Phased Array probes
  • Calibration and checks
  • Software for data collection and data analysis
  • Principles of data analysis
  • Software familiarity
  • Use of software tools for defect detection and sizing
  • Data analysis
  • Procedures for verification of flaw existence and position
  • Reporting

We can provide Ultrasonic Phased Array training suitable for PCN/EN ISO 9712 Levels 2 and 3. Alternatively we can provide training suitable for candidates working to an employer written practice based on SNT-TC-1A; EN4179 and NAS410.

We provide examinations for Phased Array Testing, including PCN personal certification examinations to Levels 2 and 3, plus examination for employers based schemes such as SNT-TC-1A, NAS410 and EN4179.

Phased Array is an Advanced Level of Ultrasonic Testing; candidates must hold a current valid PCN Level 2 and 3 Certification in Ultrasonic Testing to be eligible for PCN Level 2 and 3 Phased Array examinations.

The PA Level 2 examination includes a specific paper, and a practical exam.

The PCN requirements for Level 2 PA are: 100 hours training and 3 months supervised work experience in using PA to be obtained either before the examination, or within 24 months after passing the exam.

Once the 100 hours training have been obtained, the examination passed, and 3 months supervised work experience obtained within 24 months of passing the exam, PCN will issue certification.

The options for PA Level 2 examinations are:

Initial Candidate
Resit (Theory)
Resit (Practical)

Please Note: PCN require that an exam levy is paid at an appropriate rate

To be eligible for the PCN Level 2 examination, an eye test must be passed (near vision and colour).

The PCN requirements for Ultrasonic Phased Array Level 2 are: 3 months supervised work experience in using PA to be obtained either before the examination, or within 24 months after passing the exam.

Once the 100 hours training have been obtained, the examination passed, and 3 months supervised work experience obtained within 24 months of passing the exam, PCN will issue certification.

For employer based schemes the expected amount of work experience should be determined in the written practice.

Accelerated Practical Work Experience

Under a procedure approved by PCN and in accordance with EN ISO 9712 a candidate can attend a Lavender accelerated work experience programme and claim of the total work experience requirement.Candidates who have successfully completed a PCN Level 2 Phased Array course and exam but do not have the work experience necessary for certification are eligible for the new accelerated practical work experience programme initiative from Lavender International.

The programme can be conducted in one block of 5 days or in individual days.

Practical training on flawed samples provides more significant opportunities for finding and sizing flaws than in many work placed environments. and during the 5 days work experience programme the candidate will test a large variety of samples.

To claim 50% of the work experience for UT Phased Array a candidate must attend a 5 day work experience programme. The remaining time must be gained under the candidate’s usual industrial environment with appropriate supervision.

For further information or to book your place, contact us today.



Ultrasonic Phased Array courses are taking place around the world with Lavender international.


UK office – Penistone USA office – Houston, Texas On-site locations
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UK office – Penistone USA office – Houston, Texas
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If you would like further information about this course, please contact us or enquire.

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Safety Boots Overalls/Lab Coat

If you wish to bring your own UT PA set this must be approved by the tutor prior to commencement of the course.

Candidates MUST bring their PCN Wallet Card.
If you do not have a wallet card bring some other form of identification showing a photograph, i.e. Passport or Photo Driving Licence.

All other equipment and training materials (with the exception of Level 3 Text Books) are provided by Lavender International.

Protective gloves, protective eye glasses and plastic aprons are also available for the use of students if required.

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