Choosing the correct inspection system for your application can be an intimidating task. For industrial applications, three types of check-up systems are generally used. This guide describes these systems, their typical applications along with pros & cons.
Stereo Zoom Microscope
The stereo zoom microscope is the most usually used in industrial applications. A stereoscope normally consists of a primary objective lens, two eyepieces for viewing with a magnification range that tends to top out at 200x.
Common applications:
- numerous types of precision assembly work, including but not limited to soldering, a medical device developed, and laboratory use.
Pros:
- More significant working distances permit the user to work with tools (soldering iron, cutters, etc.) under the microscope.
- Live 3-D View and excellent depth of field making precision assembly easier.
- little first cost.
Cons:
- figure Capture and Digital Measurements are not possible.
- Eye fatigue from constant use
- Limited Magnification Range generally up to 200x
Trinocular Stereo Zoom Microscope Inspection System
This scheme features a stereo zoom microscope as described above, with an additional third port to support a camera for image capturing. The camera can then be linked to a computer (USB Type Cameras) or directly to a monitor (VGA, SXGA, HDMI type cameras).
Common Applications:
- Assembly applications that do not require a constant 3-D image with a considerable depth of field.
- Assembly applications where image capture and Measurement may be necessary.
- Quality Inspection where some assembly/rework/repair may be necessary.
Pros:
- 3-D View visible when working underneath the scope and an additional 2-D Screen monitor view that helps reduce eye fatigue. No eyepieces are required for this View.
- Image Capture and Measurement capabilities when paired with a USB/Digital Camera.
Cons:
- Loss of 3-D Depth of Field when viewing on Monitor
- The higher first cost then Stereo Zoom Microscope.
Video Lens Inspection System
Systems consist of a single lens paired with a USB/HDMI/Analog camera attached to a monitor or computer. Systems can be built piece by piece or are pre-configured and pre-assembled like the Aven Mighty Scope or Cyclops. Magnification ranges for video inspection systems can go up to 3000x.
Common Applications:
- Excellent Inspection and Documentation.
- Performing Measurement and other analysis when paired with a USB Camera.
- Elevated Magnification Applications.
- Light Assembly employment at low magnifications.
Pros:
- flexible systems can be configured in multiple ways to provide a wide range of magnifications.
- simple Image Capture and Analysis when paired with a USB Camera.
- considerably reduces eye fatigue when used instead of a traditional microscope.
- Priced for approximately any budget
Cons:
- The 2-D only image significantly reduces Depth of Field at a higher magnification than a traditional stereo microscope.
- When paired with a USB Camera, the image may "lag" when moved.
When considering an inspection system that is accurate for you, evaluate your specific application needs, budget allotment, and comfort levels.
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