Checker

Checker 200 Series
The simple, powerful vision sensors from Cognex

The Checker 200 series are all-in-one vision sensors with built-in lighting and a variable working distance, capable of inspecting over 6,000 parts per minute — all in a package small enough to fit into tight spaces. They pack a host of new advantages into a small size.

• Inspects features that other sensors cannot. Checker actually understands what your part looks like.
• Inspects unlimited multiple part features simultaneously with a single Checker.
• Overcomes varying part positions. Parts on a line typically vary in position, and Checker tracks all of them without requiring precise part handling.
• Detects a part by finding an actual part feature. This provides extremely reliable part detection unattainable with photoelectric sensors.

Most Checker models are available with the Cognex SensorView^TM 350, a compact, industrial, panel-mount display.

Models

Vision sensors are used to automate simple visual inspections where common photo-electrics cannot. Industrial application of vision sensors include: detection of missing parts, gauging incorrect size, orientation of parts and alignment and basic flaw detection.

Important specifications to consider when searching for vision sensors include number of images stored and maximum inspection rate.  The number of images stored represents captured images that can be stored into on-board memory or non-volatile storage.  The maximum inspection rate is the maximum number of parts or process steps that can be inspected or evaluated per unit time.  This is usually given in units of inspections per second.  Other important parameters include horizontal resolution, maximum frame rate, shutter speed, sensitivity, and signal to noise ratio.

About Checker:

The overriding principle of Checker is simplicity.  Because of Checker’s speed, processing at 500 frames per second, Checker is able to detect a part without a photoelectric sensor, and can precisely determine when the part was detected.  This allows Checker to have deterministic output timing, which makes Checker very simple to integrate on a production line.

Checker doesn’t have ‘‘vision tools’‘, Checker has sensors designed to detect the presence of parts and part features.  Checker’s Part Finding and Inspection sensors were designed to look and feel like photoelectric sensors so the user would be immediately comfortable using them.