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In today's world, inspectors working in Non-Destructive Testing (NDT) rely on a variety of tools to gather data from a distance. These tools are commonly known as Remote Visual Inspection (RVI), which allows for the collection of information without direct physical access. The primary goal of RVI is to capture visual data—such as images and videos—that show the condition of critical parts of an asset. This helps identify potential defects that may require further examination or maintenance.
One example of an advanced RVI tool is Flyability’s Elios 2 drone, designed specifically for internal inspections. On the other hand, simpler tools like a camera suspended from a rope can also be used depending on the situation. Regardless of the tool, the main objective is to ensure that inspectors can collect necessary data without entering hazardous environments.
Indoor drones offer numerous advantages for NDT, especially when inspecting confined spaces such as boilers, pressure vessels, chimneys, or similar structures. They eliminate the need for inspectors to physically enter these areas, reducing risks associated with falls, entrapment, and exposure to harmful gases. In industries like grain bin inspection, where the risk of being submerged in grain is high, drones provide a safer alternative.
NDT, or Non-Destructive Testing, involves various techniques that allow inspectors to assess the integrity of materials or equipment without causing damage. While visual inspection is the most common form, other methods like ultrasonic or radiographic testing may also be used.
Here are seven major benefits of using indoor drones for NDT:
1. **Improved Safety**
Drones eliminate the need for human entry into hazardous environments, significantly reducing risks such as falls, entrapment, and exposure to dangerous substances. By collecting high-quality visual data remotely, they make inspections safer and more efficient.
2. **Cost Savings and ROI**
Using drones reduces costs associated with scaffolding, downtime, and liability insurance. Companies have reported significant savings, such as $2 million saved in oil tanker inspections and $420,000 in energy company tests.
3. **Increased Inspection Frequency**
With lower costs, companies can perform more frequent inspections, leading to earlier detection of defects and longer asset life. It also supports greener operations by reducing emissions.
4. **Data Localization**
Advanced software like Inspector 3.0 allows for precise mapping of defects, helping maintenance teams quickly locate and address issues.
5. **Historical Record Keeping**
Drone footage provides a detailed record of an asset’s condition over time, enabling better tracking of defect development and aiding in accident investigations.
6. **Better Access to Hard-to-Reach Areas**
Drones can navigate tight spaces like sewers, wind turbines, and bridges, where human access is limited or impossible.
7. **Higher Quality Data**
Modern drones capture high-resolution video and images, which can be analyzed later. Specialized software enhances the accuracy of measurements and improves long-term asset monitoring.
By leveraging drone technology, NDT professionals can enhance safety, reduce costs, and improve the overall quality of their inspections.
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