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temate PowerBox H

High-Powered Portable

Ultrasonic Instrument

ATA-NDT Forum,

September 28, 2011

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Table of Contents

Introduction to EMAT

Design Objectives and Equipment Specifications

Existing and Future Applications Normal Beam Inspections Guided Waves Properties Measurement Non-EMAT Applications

Innerspec Technologies, Inc.

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Introduction to EMAT

Technology

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Electromagnetic Acoustic Transducer (EMAT) is a fairly recent

ultrasonic technique that is rapidly growing

History:

First recorded Ultrasonic Testing experiment conducted

by Russian scientist J.Y.

Sokolov in 1929. First patent

for UT equipment in 1931

Initial experiments with EMAT UT in the 70s

First commercial applications of EMAT in the 90s

Great recent growth thanks to advancements in technology

and equipment

temate PowerBox H Introduction to EMAT Technology

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While Piezoelectric UT uses a crystal to generate the ultrasound,

an Electro Magnetic Acoustic Transducer (EMAT) generates the

sound in the part inspected

temate PowerBox H Introduction to EMAT Technology

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EMAT enjoys all the benefits of UT plus other particular

advantages

Dry Inspection

(no couplant)

Insensitive to

Surface

Conditions

Unique Wave

Modes Self-Calibration

Easy to Automate and Integrate in

Production

No Couplant Induced Errors

High Inspection Speeds (up to 60

m/s)

Capable of High and Sub-Zero

Temperatures

Capable of Inspecting

Rough, Dirty

(Oily/Wet),

Oxidized or

Uneven Surfaces

Capable of Generating

Horizontally

Polarized Shear

Wave Energy

Guided Waves (Especially

Advantageous for

Weld Inspection)

Sample to Sample Self-Calibration of

Signals on

Guided Waves

Accurate and Repeatable

Inspections

No need for Operator

Interpretation

Ultrasound is Generated in the Part Inspected

Easier Probe

Deployment

The angle of incidence does

not affect the

direction of

propagation

No Signal Variations from

Probe to Probe

Ultrasonic Technique

Volumetric Inspection Easy One-Side Access to

Difficult to Reach Areas

Meets UT Standards Safe

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EMAT can be used on most metals and geometries for all the

standard UT applications

Type of Inspection Material Geometries

Flaw Detection

Points Seams Surfaces Volumes Thickness &

Distances

Material Properties

Nodularity Anisotropy Stress

Electrical

Conductors

Ferrous: Carbon Steel, Stainless

Steel, Nickel, Cobalt

Non-Ferrous: Aluminum, Copper,

Brass, Uranium and

most other metals

Discrete and

Continuous

Geometries

Plates (thin and thick)

Cylinders, Rods Tubes (round,

square or others)

Structural Elements

temate PowerBox H Introduction to EMAT Technology

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EMAT can generate unique wave modes such as Shear Horizontal

and Lamb

1 Practical generation is restricted to EMAT

2 Very efficient generation with EMAT

Boundary Beam

Orientation

Wave

Mode Technique

Main

Applications

Bulk

Normal

Longitudinal Piezo

EMAT Thickness and Velocity Measurements Flaw Detection Properties Measurement Shear

Horizontal EMAT1

Angled

Shear

Vertical

Piezo

EMAT Flaw Detection

Shear

Horizontal EMAT1

Flaw Detection, including austenitic materials

Guided

Surface Rayleigh Piezo

EMAT2 Flaw Detection (surface)

Volumetric

Lamb Piezo

EMAT2

Flaw (including Corrosion) Detection Velocity and Properties Measurements

Shear

Horizontal EMAT1

Flaw (including Corrosion) Detection Velocity and Properties Measurements

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Design Objectives and

Equipment Specifications

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The goal was to develop the first high-power ultrasonic handheld

instrument with the capabilities of a high-end flaw detector

Design Goals

Capable of running any EMAT wave mode including:

Normal Beam (SH and L) Guided Waves (Rayleigh,

SH, Lamb)

Angled Beams (SH and SV)

Capable of multiplexing up to 8 sensors, EMAT and non-

EMAT sensors

Software and hardware features available in high-end

flaw detectors

Handheld and battery operated

temate PowerBox H

1 Channel tone burst (up to 5 cycles) with 8kW of power in two power settings (600Vpp and 1200Vpp)

100kHz to 6MHz Bandwidth Pulse/Echo and Pitch/Catch operation

Built in pulse/echo signal conditioning for 1.5-3MHz Signal conditioning attachment with independent tuning

modules to adapt to any type of coil configuration

1:8 Multiplexer attachment with slot for tuning module Tuning Modules permit matching any transducer including EMAT,

PZT (PVDF), air-coupled

A, B, C and Line Scan formats Amplitude, TOF and velocity readouts 3 Gates (Calibration, Flaw, Backwall) DAC Curves PC software to display and analyze results Remote control operation through ethernet Optional software modules for Stress, Bolt Load and multi-

channel measurements

2.72 Lbs (6Kgs) 4-8 hours of battery time

temate PowerBox H Design Objectives and Specifications

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Design Objectives and Specifications

temate PowerBox H System without and with Signal Conditioning

Attachment/Multiplexer

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Existing and Future

Applications

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Existing Applications

UT Type Wave Type Applications

EMAT

Normal Beam

Thickness Measurement High and low temperatures (-30C to 650C) Coated, painted and rough surfaces (3-4mm lift-

off)

Flaw and corrosion detection

Guided Waves

Corrosion under supports with Shear and Lamb waves

Thin weld inspection (under 6mm) Surface inspections (strip, rolls, tubes, billets, weld

overlays)

Multi-Sensor

Normal Beam

Stress/anisotropy measurement Bold load with single and double wave mode (L and

SH)

Nodularity measurements Corrosion monitoring (8 Channel BAND)

Non-EMAT All High-power PZT (e.g. PVDF) Air Coupled

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Summary and Future Applications

First handheld ultrasonic instrument capable of generating up to 5 cycle tone-bursts at 1200Vpp30 times more power than a 400V high-end flaw detector!

Permits running all EMAT applications including normal beam and guided wavesreclaim surface waves!

Runs PVDF (polyvinylidene fluoride) sensors and air coupled transducers

Potential applications discussed during the show: Scribe lines Surface inspections Thin welds (engine casings) Thickness and corrosion measurements

temate PowerBox H Existing and Future Applications

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Innerspec Technologies, Inc.

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Our Company

Innerspec Technologies, Inc.

US company located in Lynchburg, VA with offices in Europe and China and representatives and distributors throughout the world

First EMAT (NASA) in 1989. First commercial EMAT in 1994

56 patents for EMAT applications and equipment

World leader in commercial applications of EMAT with over 200 integrated systems installed in 27 countries and the most complete line of equipment

temate and Rollmate product lines

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Questions?