Abstract
A laser tracker measures an SMR; a target holder is what puts that SMR where the feature is. Holders are built to make holes, edges and derived vectors easier to measure, and they wear. Adam Warden works through what a target holder is and how it is measured, then what the errors mean in production – if three pads wear by the same amount the SMR drops by 1.414 times that amount, and everything measured with it moves. Brunson had been measuring returned holders since February 2009, and the talk reports what those years of data showed.
Cite this paper
Adam Warden. Brunson Instrument Company. Presented at the Coordinate Metrology Systems Conference 2011, Phoenix, Arizona, July 25-29, 2011. Coordinate Metrology Society, reference CMS-2011-018.