Дефектоскоп OmniScan™ X3 на фазированных решетках с методом TFM
Обнаружение микротрещин и пустот HTHA
Для повышения вероятности обнаружения высокотемпературной водородной коррозии на ранних стадиях, часто используют сразу несколько методов ультразвуковой дефектоскопии. Методы TOFD (дифракционно-временной метод), FMC (метод полноматричного захвата) и специальные DLA-преобразователи показали наибольшую эффективность в выявлении HTHA-растрескивания. Дефектоскоп OmniScan X3 поддерживает все эти технологии, а метод общей фокусировки (TFM) и программные инструменты облегчают настройку и анализ.
Серия специализированных HTHA-преобразователей Olympus и дефектоскоп OmniScan X3 образуют комплексное решение для обнаружения водородной коррозии на раннем этапе:
Интегрированная конфигурация DLA-преобразователя
Огибающая TFM в реальном времени, устраняющая колебания сигнала
TFM-изображение высокого разрешения (до 1024 × 1024 точек)
64-элементная расширенная апертура TFM
Probes
High-Sensitivity Probes for HTHA
Earlier and More Reliable Detection of High-Temperature Hydrogen Attack
Maximize Your Angle-Beam Coverage of the Weld and Heat-Affected Zone
A38 and A28 Dual Linear Array™ Angle-Beam Probes
High-sensitivity 10 MHz dual arrays in pitch-catch configuration
Small element pitch enables clear TFM imaging and wide-angle coverage of the weld and heat-affected zone (HAZ)
Patented pivoting housing allows closer positioning of the arrays, extending the probe’s through-thickness coverage
Dedicated wedge series covering pipe diameters from 4 to 48 in. OD and thicknesses up to 95 mm (3.74 in.)
64-element arrays of the A38 DLA enable sharper and deeper focusing, unlocking the full potential of the OmniScan™ X4 flaw detector
32-element arrays of the A28 DLA offer a smaller wedge footprint for easy access and coupling near the weld
Fast Scanning of Parent Materials for Reliable Detection of HTHA
Zero-Degree REX1 Dual Linear Array Probe
10 MHz dual 64-element arrays
Beam width coverage up to 30 mm (1.18 in.)
Adjustable stabilization and carbide wear protection system fits to the surfaces of pipes as small as 4 inches (101.6 mm) OD
Integrated wedges covering thicknesses from 4 mm to 95 mm (0.16 in. to 3.74 in.)
Provides clear C-scan images when used with an encoder or scanner
Leverage Multiple Inspection Methods for Reliable HTHA Detection
A31 and A32 Pulse-Echo Probes Optimized for HTHA
Offering high definition, these 10 MHz 64-element linear probes are optimized for efficient TFM and PWI inspections
Smaller element pitch of the A31 probe enables wide-angle coverage of the weld and HAZ
Wider total aperture of the A32 probe enables finer resolution and deeper focusing
Specifications
Part Number/Description
Item Number
Frequency (MHz)
Element Configuration
No. of Elements
Pitch (mm)
Active Aperture (mm)
Elevation (mm)
Roof Angle (deg)
Thickness Range (mm)
10DL32-9.6X5-A28
(FD25 wedge)
Q3301742
10
Dual 32
64
0.3
9.6
5
Set by wedge
4–45
10DL32-9.6X5-A28
(FD60 wedge)
Q3301742
10
Dual 32
64
0.3
9.6
5
Set by wedge
45–95
10DL32-19.2X5-A38
(FD25 wedge)
Q3302412
10
Dual 64
128
0.3
19.2
5
Set by wedge
4–45
10DL32-19.2X5-A38
(FD60 wedge)
Q3302412
10
Dual 64
128
0.3
19.2
5
Set by wedge
45–95
10DL64-32X5-1DEG-REX1-PR
Q3301737
10
Dual 64
128
0.5
32
5
1
30–95
10DL64-32X5-5DEG-REX1-PR
Q3301733
10
Dual 64
128
0.5
32
5
5
4–30
10L64-19.84X10-A31
Q3301607
10
Linear
64
0.31
19.84
10
N/A
3–90
10L64-32X10-A32
Q3300429
10
Linear
64
0.5
32
10
N/A
8–110
Although all Dual Linear Array probes are manufactured with 10 MHz piezo-composite, the tested center frequency specification of the REX1 models shifts down to ~9.0 MHz because of attenuation occurring in the integrated wedge.
These probes come standard with an OmniScan™ connector and a 2.5 m (8.2 ft) cable or can be specially fitted with other connectors and cable lengths.
Important note: Using phased array probes in direct contact with a surface during inspection can lead to permanent damage. A wedge should always be used.
Wedges for A38 and A28 Probes
The A38 and A28 DLA probes’ dedicated angle-beam wedge series are optimized for weld volume and heat-affected zone inspection. The angle of these wedges is set to generate L-waves at a 65-degree nominal incident angle in steel. They feature a roof angle calculated for each AOD diameter from 4 in. to 48 in. (101.6 mm to 1220 mm).
SA38 and SA28 wedges are available in two focus depths (FD) to cover a wide range of thicknesses, from 4 mm to 95 mm (0.16 in. to 3.74 in.). These wedges enable you to fully exploit the A38 probe’s extended focusing capabilities.
