Borescopes
A borescope is a remote inspection tool used to illuminate and magnify objects that are hard to reach or impossible to see directly.
Borescopes are composed of an optical lens or camera attached to the end of a rigid or flexible tube. The tube feeds into an eyepiece or display that allows the user to see the remote object. In a flexible borescope with an inspection camera, an electrical cable transmits the image of the object to the display.
Modern borescopes allow technicians to capture still images, record video, and change the viewing position with remote controls. Many are battery-powered for field use, with small displays and low resolution suitable for most applications. High-end borescopes have sophisticated controls, enhanced viewing and capture features, and high-resolution displays.
Types of Borescopes
Borescopes support maintenance inspections by providing visual access to confined or hard-to-reach areas. They can help confirm conditions without extensive disassembly.
- Flexible borescopes designed to navigate around obstacles.
- Camera-based borescopes for viewing and documentation.
- Compact borescopes intended for portable inspection workflows.
For complementary inspection workflows, teams may also use thermal imaging cameras to identify abnormal thermal patterns and thermometers for temperature verification.
Key Selection Criteria for Borescopes
- Probe length, flexibility, and tip diameter for access constraints.
- Camera resolution and image clarity for your inspection needs.
- Lighting and visibility in dark environments.
- Field of view and focus behavior for close-range inspection.
- Image or video capture needs for documentation.
Selecting a borescope that matches the access requirements and documentation needs helps support efficient inspections.
Frequently Asked Questions
When is a borescope useful in industrial maintenance?
A borescope is useful when you need to visually inspect areas that are difficult to access without disassembly, such as inside enclosures, conduit paths, or machinery cavities. For inspection workflows where heat signatures are relevant, thermal imaging cameras can also help.
What probe features matter most when choosing a borescope?
Focus on probe length, flexibility, and tip diameter first, then compare lighting, field of view, and image quality based on the inspection environment. If documentation is required, consider whether you also need supporting measurements, such as temperature readings from thermometers.
Should I choose a borescope with image capture?
Image or video capture is helpful when you need to document findings for maintenance records, reporting, or sharing observations with other team members. For broader documentation workflows, data acquisition may be relevant when paired with sensors and repeatable logging.
