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In today’s world, inspectors in the field of 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 refers to the ability to collect information without direct physical access. The primary purpose 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 issues that may require further examination or maintenance.
One example of an advanced RVI tool is Flyability’s Elios 2 drone, which is designed for internal inspections. However, RVI can also be as simple as a camera attached to a rope. Regardless of the tool used, the main goal is to allow inspectors to gather essential data without putting themselves at risk by entering confined spaces or standing on scaffolding.
Indoor drones, in particular, offer several advantages for NDT in confined environments. Here are the top seven benefits:
**1. Enhanced Safety**
Confined space inspections pose serious risks, including falls, entrapment, and exposure to harmful gases. Using a drone eliminates these dangers. For instance, in grain bin inspections, where falling into the grain can be fatal, drones provide a safe alternative. By collecting high-quality visual data remotely, drones reduce the need for human entry, significantly improving safety.
**2. Cost Savings and ROI**
Drones can save companies substantial money by eliminating the need for expensive scaffolding, reducing downtime, and lowering insurance costs. For example, one energy company saved $420,000 using the Elios 1, while another saved $2 million during an oil tanker inspection. These savings make drones a cost-effective solution for regular inspections.
**3. Increased Inspection Frequency**
Because drones are more affordable, companies can conduct more frequent inspections. This early detection of defects leads to longer asset life and improved environmental performance. A study found that drone inspections of boilers could cut CO2 emissions by up to 649 metric tons annually.
**4. Accurate Data Localization**
Modern software like Inspector 3.0 allows inspectors to pinpoint defect locations with precision. This makes it easier for maintenance teams to locate and address issues quickly, improving overall efficiency.
**5. Comprehensive Historical Records**
Drones capture detailed visual data, creating a historical record of an asset’s condition over time. This data can be converted into 3D models or point clouds, offering valuable insights for future maintenance and accident investigations.
**6. Improved Access to Hard-to-Reach Areas**
Drones can access areas that are too dangerous or physically impossible for humans. In sewer systems, wind turbines, and bridges, they provide access to tight spaces, ensuring thorough inspections that would otherwise be missed.
**7. Higher Quality Data Collection**
With modern drone technology, inspectors can record video footage that can be reviewed later. Advanced software even enables precise measurements, resulting in more accurate and detailed data for long-term asset monitoring.
By leveraging these benefits, indoor drones are revolutionizing the way NDT is conducted, making inspections safer, faster, and more efficient.
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