Circuit Board Quality Control Calibrator
by Andrew Brookes, National Physical Laboratory/science Photo Library
Title
Circuit Board Quality Control Calibrator
Artist
Andrew Brookes, National Physical Laboratory/science Photo Library
Medium
Photograph - Photograph
Description
Circuit board quality control calibrator. Physicist adjusting a calibrating machine that uses an X-Y (two-dimensional) optical position standard. The X-Y standard (centre) is a flat plate made from glass or quartz that has a reflective chromium-coated pattern of many crosshairs spanning its surface. These crosshairs are designed to calibrate measuring machines that use a viewing system to locate features. Such machines are used in the automated optical inspection (AOI) of circuit boards, where a camera autonomously scans the boards for faults such as missing components. Photographed at the National Physical Laboratory in Teddington, UK.
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February 25th, 2021
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