Last updated on 2024年6月20日

How do you handle the safety and environmental issues of laser scanning for NDT in different settings?

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Laser scanning is a powerful technique for nondestructive testing (NDT) of various materials and structures. It can provide high-resolution, accurate, and fast data for inspection, analysis, and evaluation. However, laser scanning also poses some safety and environmental challenges that need to be addressed in different settings. In this article, you will learn how to handle the safety and environmental issues of laser scanning for NDT in different settings.

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1 Laser hazards and protection

Laser scanning involves the emission of laser beams that can potentially cause eye or skin damage, fire hazards, or interference with other devices; therefore, it is essential to take precautions to protect yourself and others from laser hazards. These include wearing appropriate personal protective equipment (PPE), such as goggles, gloves, and clothing that can block or reflect the laser radiation; using laser safety signs, labels, and barriers to warn and restrict access to the laser scanning area; aligning and positioning the laser scanner carefully to avoid direct or reflected exposure to the beam or its scattered radiation; and following the manufacturer's instructions and local regulations for the safe operation and maintenance of the laser scanner and its accessories.

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Ratinder Kaur

Marketing & Branding Architect | 3D Technology Expert for AEC (BIM, Laser Scanning, MEP, Structural)
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When conducting laser scanning for NDT in various settings, ensuring safety and environmental protection is prominent. The laser scan technician should undergo training in laser safety protocols and wear appropriate PPE such as laser safety goggles. Access to scanning areas should be restricted, and thorough risk assessments should be conducted to mitigate hazards. Environmental considerations should include adhering to emission standards, proper waste management and optimizing energy efficiency.

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2 Environmental factors and calibration

Laser scanning can be impacted by various environmental factors, such as temperature, humidity, air pressure, dust, smoke, fog, rain, snow, vibration, wind, movement, sunlight, artificial light and reflections. To reduce the influence of these factors on the quality and accuracy of the data, it is important to calibrate the laser scanner before and during the scanning process. Calibration involves adjusting the settings and parameters of the laser scanner to fit the specific conditions and requirements of the scanning site and target object. Furthermore, calibration can help to fix any errors or distortions in the data caused by the laser scanner itself or its accessories.

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3 Data processing and storage

Laser scanning generates large amounts of data that need to be processed and stored efficiently and securely. Data processing involves transforming the raw data into meaningful and useful information for NDT purposes, such as filtering, smoothing, and denoising the data to remove any unwanted or irrelevant signals or noise; registering, aligning, and merging the data from multiple scans or viewpoints to create a complete and coherent representation of the target object; segmenting, classifying, and analyzing the data to identify and quantify any defects, damages, or anomalies in the target object; and visualizing, reporting, and communicating the data to present and share the results and findings of the NDT inspection. Data storage involves saving and managing the data in a way that ensures its integrity, accessibility, and security by selecting an appropriate format, compression, and encryption for the data; using reliable and compatible devices, software, and platforms for its transfer, backup, and retrieval; and following ethical and legal standards for respecting its ownership, confidentiality, and compliance.

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4 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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How do you handle the safety and environmental issues of laser scanning for NDT in different settings?

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1 Laser hazards and protection

2 Environmental factors and calibration

3 Data processing and storage

4 Here’s what else to consider

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