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Low-Frequency 3D Tomography TFM Phased-Array Instrument LPA70

CTS-LPA70 Low-Frequency 3D Tomography TFM Phased-Array Instrument, it is a low-frequency phasedarray detector specially designed for inspecting highattenuation materials such as concrete and wind turbine blades.

Product Intro

CTS-LPA70 Low-Frequency 3D Tomography TFM Phased-Array Instrument, it is a low-frequency phasedarray detector specially designed for inspecting highattenuation materials such as concrete and wind turbine blades.

This intrument have parallel fullmatrix acquisition and multimodal TFM imaging, it supports flexible and adaptable for rectangular array transducers consisting of up to 64 shearwave DryPoint Contact (DPC) sensors, it can operate visual and realtime three-dimensional imaging inspection for internal structures of highattenuation media including concrete, stone and refractory bricks, it accurately identify typical defects such as reinforcing bars, cables, voids, gaps, layers, cracks, fillers and inclusions. This product overcomes key core technologies in the field of concrete nondestructive testing, its technical indicators have reached International advanced level, successfully resolved the chokepoint technical challenges and realises domestic substitution for high-end imported equipment.

Feature
  • Self-developed Dry Point Contact (DPC) Sensor:Equipped with wear-resistant ceramic sensing tips, it enables efficient acoustic wave transmission without couplant, greatly improving equipment durability and engineering applicability.

  • Single-sided Inspection:Only single-side contact with the concrete structure surface is required to complete 2D/3D imaging inspection, which significantly enhances inspection convenience and operability.

  • Adaptive Surface Coupling Mechanism:Integrated with an independent spring suspension structure, it automatically adjusts to rough and uneven concrete surfaces to guarantee stable inspection performance.

  • Shear Wave Excitation for High-resolution Inspection:An optimized acoustic excitation mechanism delivers shear-wave-dominated inspection, markedly boosting the resolution for tiny internal defects.

  • Real-time 3D Imaging System:Based on the DPC sensor array and total focusing method (TFM), it dynamically generates 3D tomographic images of the internal concrete structure.

  • Multi-dimensional Visual Analysis:Supports multi-plane slice views and 3D panoramic reconstruction images, providing multi-angle data support for defect localization and morphology interpretation.

  • Innovative Split Architecture Design:Adopts a split architecture for the main unit and array transducer. Via the IPEX phased-array interface, the main unit can flexibly match DPC sensor arrays, conventional phased-array probes and other types of array transducers.

Parameter

CTS-LPA70主机性能指标:

Basic Parameters
Number of Channels32:64 channels (supports max 64-channel TFM)
Transmitter Parameters
Pulse ModeBipolar square wave
Transmit VoltageUp to ±200V
Pulse Width500ns ~ 50μs
Receiver Parameters
Bandwidth20kHz ~ 2MHz (-3dB), multi-stage FIR filter supported
Sampling Frequency / Bit Depth20MHz / 14bit
Analog Gain Range0 ~ 70dB
Detection Capability
Maximum Detection Depth≥0.8 m
Maximum ResolutionRebar with diameter >10 mm, sphere of 20 mm detectable
Physical Parameters
Data CommunicationWired Gigabit Ethernet / Wireless Wi-Fi
Power SupplyDC 13.5V / Battery 11.1V
Battery Endurance≥4 hours
Temperature CharacteristicsOperating temperature: -10℃ ~ 45℃; Storage temperature: -20℃ ~ 60℃
Main Unit Dimensions320mm×260mm×106mm (including frame rubber pad)
Main Unit Weight4.1 kg (excluding battery)
Software Functions
Data Acquisition3D FMC data acquisition
Imaging Mode2D, 3D TFM imaging
Number of Focal PointsUp to 1,000,000 points
Image Frame Rate3D imaging > 1 Hz
Display ModeA-Scan, B-Scan, C-Scan, 3D, 3D MAP
Analysis SoftwareDefect locating and quantitative measurement functions available


CM-48阵列换能器性能指标:

Receiver Parameters
Quantity of TransducersDPC × 48
Nominal Frequency50 kHz Shear Wave
PreamplifierReplaceable low-noise preamplifier module
Physical Parameters
Dimensions320mm×150mm×90mm (including handle width)
Weight3.7 kg
Acquisition ModeAuto / Manual
Auxiliary PositioningLaser assisted positioning
Operation MethodDual handles, multi-angle adjustable
Scope

Case 1 | Inspection of Wind Turbine Hybrid Tower Segment Components

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Segment inspection of hybrid tower — Imaging of dense reinforcing bars and φ12 mm voids

Single-sided inspection from the extrados of segment; clear discrimination of φ12 mm diameter voids, with simultaneous imaging of near-surface dense reinforcing bars.


Case 2|Wind Hybrid Tower Mock-up: Timber Strip Detected

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Imaging of mock-up specimen: rebars and timber strip (33×25×420 mm) are clearly distinguishable.

Grid-based 3D image stitching scan generates a full-view 3D MAP. Information such as the timber strip’s dimension, buried depth and orientation can be detected and analyzed, with well-separated imaging of rebars and timber strip.


Case 3 |Track Slab Void Model

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Track Slab Void Model Inspection — Rebars, Secondary Concrete Interface & Void Defects

Grid 3D stitching scan generates a full-view 3D MAP, visually presenting the internal rebar distribution and secondary concrete interface. Based on the strength of bottom-echo reflection signals, the void locations at the secondary concrete interface can be indirectly determined.


Track Lining Physical Model

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Lining Model: φ5 Rebar (buried 100 mm) & φ50 Void (buried 550 mm) Detected

Single-sided inspection performed from directly above the specimen: both the φ5 rebar at 100 mm depth and the φ50 void at 550 mm depth are clearly imaged, demonstrating excellent deep-penetration capability.


Case 5|Carbon-Based High-Attenuation Composite Inspection

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Void Defect Identification — Three φ18 mm Transverse Holes at Different Depths in a 200 mm Thick Specimen

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Edge Stitching Detection — Simultaneous Identification of φ13 mm Drilled Holes at 60 mm / 300 mm Depth

3D imaging intuitively presents the internal void defects of a 200 mm thick carbon-based composite specimen; three φ18 mm transverse holes at different depths are precisely identified and quantitatively located. Grid-based 3D image stitching scanning forms a full-view 3D MAP, enabling simultaneous identification of the φ13 mm drilled holes at depths of 60 mm and 300 mm.


Case 6 | Bridge Box Girder Specimen Inspection

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Box Girder Inspection & Stitching Imaging — φ50 mm Corrugated Duct Clearly Visible

On-site inspection detects a φ50 mm hollow corrugated duct and φ8 mm rebars inside the box girder web, with the duct outline appearing clear and complete in the stitching image.

Overview
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