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Sonemat Ltd

At Sonemat our goal is to deliver innovative ultrasonic NDT solutions to today’s Non-Destructive Testing (NDT) issues.

Product, Service

United Kingdom

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Overview

Sonemat Ltd. exists to provide ultrasonic testing equipment and measurement solutions to industry and research organisations.

Formed in 2005 as a spin-out from the University of Warwick, Sonemat specialises in a number of ultrasonic NDT methods with particular expertise in non-contact ultrasonics, including EMATs and laser based ultrasound. Sonemat has taken some of the novel laboratory based developments from leading research and has packaged them in a format suitable for industrial use.

At Sonemat, we provide economical, bespoke data acquisition and signal processing systems, with the flexibility to rapidly respond to changing customer requirements.

For more information on our products and services please contact us - we look forward to hearing from you.

Products & Services
EMAT Adapter GS2020

The EMAT Adaptor GS2020 provides NDT inspection with the advantages of non-contact EMAT transducers for pulse-echo flaw detection and thickness gauging, without the large capital outlay of replacing existing piezoelectric based flaw inspection systems and thickness/corrosion monitors.

The video gives a demonstration of our high temperature EMAT and standard EMAT working with our GS2020 EMAT adapter along with MITECH's ultrasonic flaw detector.

The EMAT Adaptor GS2020 provides:

  • A bridge between an EMAT probe and a flaw detector designed for piezoelectric transducers.
  • Low power averaging electronics, such that the signal-to-noise performance of the EMAT measurement is dramatically improved.
  • Automatic gain control (AGC), increasing reliability and inspection speed whilst eliminating the need for operators to adjust EMAT stand-off or the gain setting on the flaw detector.
  • Compatibility with almost all standard flaw detectors ― contact us for more information or a free trial with your flaw detector.

The GS2020 is designed to work with modern NDT inspection systems with a suitable EMAT (provided as part of the package). It has sufficient signal strength and resolving power to operate on:

  • Oxide coated ferritic steel components
  • Non-oxide coated ferritic steel components

In certain circumstances, measurement of austenitic stainless steel is possible as shown in the figures below:


Signal on Stainless Steel


Signal on Stainless Steel with Sonemat's GS2020

Sonemat's GS2020 EMAT adapters are sold with a standard bulk shear wave EMAT ( HWS2225-GC) for £2700.

GS2020 Specifications:

  • Dimensions                                191 X 137 X 37 mm approx.
  • Weight                                           1 kg (inc. battery)
  • Storage temperature                -10 °C – +60 °C
  • Operating temperature           0 °C – +40 °C
  • Operating humidity                  0 – 90%
  • Maximum Input voltage         1000 V, 100 ns  pulse width @ 1 kHz
  • Maximum Output voltage      +/- 500 mV
  • Bandwidth                                  500 kHz – 10 MHz
  • Power                                           4 X AA Battery (approx. 12hrs battery life)
  • Connections                               3 X LEMO 00 coaxial

Further details on Sonemat's GS2020 EMAT Adaptor can be found in the product brochure.

High Power Pulser HPP2000

Sonemat's High Power Pulser HPP2000 generates high power broadband pulses (~800V spike, subject to load) suitable for driving EMATs capable of generating guided waves such as:

  • Rayleigh waves
  • Lamb waves
  • Shear Horizontal (SH) waves

The types of guided wave modes that the HPP2000 is able to generate can be useful for inspecting difficult-to-access areas e.g.:

  • Pipes
  • Plates
  • Tanks
  • Reactors.

The HPP2000 features variable repetition rate, and internal or external triggering, which makes the HPP2000 a simple and robust solution to a wide range of EMAT inspection challenges.

Please note: The HPP2000 is designed for pulse generation only, and does not contain a pre-amplifier. See our complementary product the Standalone Amplifier - SAA1000 if you with to develop a pitch-catch inspection system.

Standalone Amplifier - SAA1000

Sonemat's Standalone Amplifier SAA1000 is designed to provide ultrasound signal amplification for detection of various wave modes using EMATs, such as:

  • Rayleigh waves
  • Lamb waves
  • Shear Horizontal (SH) waves

Sonemat's SAA1000 features 2 channels with variable gain of up to 80 dB. Multiple SAA 1000 units can be deployed where arrays of detection EMATs are required. The unit is mains powered and its analogue nature means it is compatible with any signal display or digitization device.

Although the SAA1000's primary function is as a complimentary product to Sonemat's High Power Pulser HPP2000, it is a useful general purpose development tool that no ultrasonics laboratory should be without.

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