Wavelength
NDT offer inspection services using industry standard flaw detectors
and phased array equipment. We can also develop bespoke equipment
for non standard inspections as part of our consultancy
service. All inspectors are Level II certified according to EN 4179,
NAS 410 and SNT-TC-1A. Inspectors are also trained in advanced techniques
including automated testing (e.g. immersion C-scan) and other computer
based inspection and analysis methods.
The
company is experienced in inspecting both composite and metallic
structures in a range of industries and environments (in-service,
production etc.) using standard and in-house inspection procedures.
Where required by the client, procedures developed by Wavelength
NDT can be approved by an independent Level III service provider.
Composite
components during manufacture and in-service.
Steel structure
for corrosion mapping/monitoring.
If
your application or requirement is not listed on this website
please contact
us - we have probably tested something similar and can advise
you on how to proceed.
We
travel extensively within the UK and worldwide. Our mission is
to offer a fast response to your enquiry, delivering a high quality
and reliable inspection service based on strong customer support
and technical rigour.
In-service
inspection
Wavelength
NDT routinely perform in-service inspection of composite and metallic
structures. Known production defects can be monitored and checked
during the service life of the structure. In-service damage can
be assessed and detailed information on the size, exact location
and type of defect can be provided. NDT can then be used to assess
the quality of repairs to the structure.
Production
inspection
Ultrasound
inspection of components during production can give reassurance
to both the manufacturer and customer that the structure has been
built as the designer intended. Inspection during prototyping can
also bring many benefits; allowing the manufacturer to quickly identify
potential production problems and assess various material properties
before full-scale production starts.
Inspection
equipment
Wavelength
NDT have a large inventory of inspection equipment including an
immersion scanning tank and a wide range of portable equipment.
We are utilising and developing inspection techniques for the following
equipment:
Ultrasonic
flaw detectors for high and low frequency inspections.
Ultrasonic
phased array equipment.
Immersion
ultrasonic scanning systems.
Bond
testing equipment (resonance, acoustic pitch-catch, mechanical
impedance).
Digital
tap tester.
Wavelength NDT
also regularly hire equipment from all the major NDT suppliers as
required by the customer or application.
Inspection
types
The following
flash movies aim to show the basic inspection types that are commonly
used for NDT of engineering structures.
A-scan
This is the
standard inspection method and relies on the operator to move the
ultrasound probe over the surface of the structure. At each measurement
location the operator checks the reading on the flaw detector and,
if required, marks the position of the defect on the structure.
B-scan
A B-scan is
constructed from a series of A-scan signals when the ultrasound
beam is moved over the structure by mechanical means or by using
an array of sensors. The B-scan image shows a cross-sectional view
through the structure and is particularly useful for analysing ply
orientation in carbon fibre laminates or recording wall loss on
corroding steel structures.
C-scan
A C-scan image
is constructed by moving the ultrasound beam over the surface of
the structure. At each measurement position, the depth and amplitude
of diagnostic echoes within the A-scan signal are recorded. The
C-scan image then shows a plan view of the recorded data revealing
the size, orientation and location of defects.