[8] - How much data is enough Article from Manufacturing...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
How much data is enough? Article from: Manufacturing Engineering Article date: November 1, 2002 Author: Knebel, Richard More results for: coordinate measuring machine cmm probe touches Coordinate Measuring Machines (CMMs) come in many types, but one important area of distinction is the method of data acquisition. There are two basic methods: touch-trigger probing and scanning. Today, the touch-trigger CMM is the most common. It measures features by contacting individual points on the workpiece. The scanning probe CMM uses a probe sensor that is, by itself, a small measuring machine . Linked to the larger CMM with advanced control technology, it continuously scans the contour of the workpiece surface. Scanning CM Ms can collect hundreds or even thousands of independent points to define a part feature in the same time it takes touch-trigger probe CM Ms to measure only four to eight points. When choosing a CMM , it's common practice to obtain the machine 's measurement uncertainty from the manufacturer. The data are compared to part size and tolerances to determine the suitability of a particular
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/24/2009 for the course MAK mak420 taught by Professor Tevfik denir during the Spring '09 term at University of Economics and Technology.

Page1 / 2

[8] - How much data is enough Article from Manufacturing...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online