In industrial inspection scenarios such as petrochemicals, power, aerospace, and pressure vessels, defects such as incomplete welding, tiny cracks, pores, and leakage points in the internal welds of pipes, cavities, and precision components have always been the core pain points for inspection personnel. Although conventional white light sources can clearly present the internal morphology, when it comes to subtle opening defects with smooth surfaces and minimal color differences with the background, they are prone to missed detections due to insufficient contrast and reflection interference; especially in complex pipelines and narrow cavities, micro-level defects are almost impossible to identify under white light, which poses a significant threat to the safe operation of equipment. How to efficiently and accurately identify these concealed and subtle defects has become an urgent need in industrial non-destructive testing.
In industrial inspection scenarios such as petrochemicals, power, aerospace, and pressure vessels, defects such as incomplete welding, tiny cracks, pores, and leakage points in the internal welds of pipes, cavities, and precision components have always been the core pain points for inspection personnel. Although conventional white light sources can clearly present the internal morphology, when it comes to subtle opening defects with smooth surfaces and minimal color differences with the background, they are prone to missed detections due to insufficient contrast and reflection interference; especially in complex pipelines and narrow cavities, micro-level defects are almost impossible to identify under white light, which poses a significant threat to the safe operation of equipment. How to efficiently and accurately identify these concealed and subtle defects has become an urgent need in industrial non-destructive testing.
Core Differences and Scene Value of Ultraviolet Fluorescence Inspection
The conventional white light endoscope mainly relies on LED fiber lighting technology, using reflected light from the object surface to form images, presenting surface morphology, color and texture. The limitation lies in that it mainly relies on the naked eye for identification, resulting in low recognition ability for fine opening defects (such as ≤ 10μm cracks, tiny pores); the metal surface is prone to reflection, masking the defects; in complex weld seam textures, the contrast between the defect and the background is poor, leading to a high rate of missed detection.
Applicable scenarios: Suitable for routine surface inspections, such as obvious cracks, corrosion, carbon deposits, defects and other intuitive defect detections.
VSNDT UV borescope uses a 365nm ultraviolet light source to excite the fluorescent penetrant at the defect site. The remaining fluorescent substances emit high-intensity fluorescence, forming high-contrast fluorescent spots, enabling the visualization of defects.
Core advantages: Not affected by the surface texture or color, minute defects are clearly visible.
Special application scenarios： Precise detection of surface openings such as pipe welding joints， pressure vessel weld seams， internal of precision components， and cavities of aviation engine parts for minor cracks， incomplete fusion， pores， leakage， corrosion cracks， etc.
VSNDT UV borescope: Scene-oriented Technical Advantages
In response to the core demands of industrial inspection for high sensitivity, flexible adaptation, and precise excitation, VSNDT UV borescope deeply aligns with the usage scenarios in terms of the light source, specifications, and functions, addressing the practical detection pain points:
By using high-purity ultraviolet light sources and professional filtering technology, 99% of visible light interference is eliminated, ensuring stable and compliant ultraviolet light output. Even 1μm-level fine cracks and pinhead-sized pores can be excited to emit bright fluorescence, completely solving the problem of "invisibility and indistinguishability" under white light, especially suitable for high-pressure scenarios such as nuclear power and petrochemicals that have zero tolerance for safety.
Supports two configurations: ultraviolet single light source and ultraviolet + white light dual light source. During detection, you can switch between them with one click. The white light mode quickly locates the internal structure of the equipment and preliminarily checks macroscopic defects; the ultraviolet mode precisely locates minute defects without the need to replace the probe. One set of equipment covers the entire process of "routine inspection + detailed flaw detection", reducing equipment procurement and operation costs.
Strictly uses the industrial flaw detection gold wavelength of 365nm UVA ultraviolet light. This wavelength has moderate penetration power and high safety. It perfectly matches the excitation characteristics of mainstream fluorescent penetrants, with strong fluorescence signals and low background interference. It meets the requirements of non-destructive testing standards for pressure-bearing equipment, and the detection results are authoritative and reliable.
The probe diameter covers 2.8mm - 8mm. All specifications support dual light sources or single ultraviolet light source. It can easily enter pipes, the inner cavities of precision castings, aviation components, etc., with a 360° turning design without any detection dead zones. It can cover complex welds and internal defects of curved pipelines.
The core of industrial inspection lies in not missing any minor defect that threatens safety. VSNDT UV borescope with its precise ultraviolet light source, high sensitivity detection, and flexible specification configuration, compensates for the shortcomings of light source detection and is specifically designed for concealed defects such as pipeline welds and internal fine cracks. From petrochemical pipelines to pressure vessels, from aviation precision components to nuclear power equipment, it provides a reliable solution for industrial non-destructive testing that is "visible, accurate, and flexible", safeguarding equipment safety and production stability.
Industrial borescope
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