How To Select The Camera Module for The Internal Inspection Endoscope of High-temperature Industrial Pipelines?
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How To Select The Camera Module for The Internal Inspection Endoscope of High-temperature Industrial Pipelines?

Views: 0     Author: Site Editor     Publish Time: 2025-04-21      Origin: Site

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In high-temperature operation scenarios such as petrochemical and power energy industries, the new type of industrial endoscope is becoming a "powerful tool" for pipeline safety inspection. Its high-temperature-resistant probe can withstand short-term temperatures of 800℃, and with a 3.9mm ultra-thin diameter design, it can penetrate into the blind spots of pipes such as bends and weld seams that traditional equipment cannot reach, and capture real-time defects like corrosion and cracks.

 

How to select the camera module for the internal inspection endoscope of high-temperature industrial pipelines?


  • CMOS Sensor Selection

    A sensor similar to the GC030A image sensor can be adopted. It should have a working temperature range of -20℃ to 85℃ to ensure image stability in high-temperature environments. Combined with a 1/5-inch photodetector chip, it can balance resolution and volume requirements, and support 720P/30fps video output to meet industrial inspection standards.

  • Optical System Configuration

    Lens Angle: Select a 90° to 120° wide-angle lens, balancing field coverage and distortion control. In pipeline inspection scenarios, a single image can cover over 80% of the cross-sectional area of a DN150 pipe diameter.

    Focal Length Parameters: The recommended fixed focal length is 5-50mm, corresponding to a working distance of 20-300mm. The depth of field range should be ≥ 15mm to accommodate the curved surface detection of pipelines.

    Aperture Design: A combination of F1.4 to F2.8 large apertures to enhance light intake in low-light conditions and to solve the overexposure problem in the alternating bright and dark areas within the pipeline. This is achieved through the HDR technology.

  • Mechanical Structure and Process Requirements

    Module Size: A tungsten steel sealed housing with a diameter of ≤ 6mm, certified for IP67 protection, and a 3.9mm ultra-thin probe can penetrate pipes with a diameter of DN50 or smaller.

    Lighting System: Must integrate 6 high-brightness LEDs (each ≥ 50 lumens), support PWM dimming to adapt to the reflective environment of oil stains, and the spacing between the light beads needs to be ≤ 1.2mm to ensure uniform illumination.

  • Suggestions for Expanding Functionality

    It is recommended to choose models that support dual LVDS/USB3.0 output and are equipped with a two-way 360° steering mechanism. The crack detection accuracy can reach 0.05mm. For extreme environments, it is suggested to select endoscopy camera modules with active cooling slots.

 


Conclusion

Endoscope camera modules are indispensable in industrial pipeline inspection due to their ‌non-invasive inspection capabilities‌. With a 3.9mm ultra-slim probe and an 800°C high-temperature-resistant design, they access hard-to-reach pipeline corners without disassembling equipment, minimizing downtime costs. Integrated ‌HDR imaging and polarized light technology‌ overcome challenges like glare and oil contamination, achieving a defect detection accuracy of 98.6%. In the petrochemical industry, this technology has reduced pipeline leakage risks by 75% and saved millions in maintenance costs per inspection.

To learn more about sewer endoscope cameras and other inspection tools, visit www.endoscope-cameras.com for detailed product information and purchase options.

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