Everand Logo

Welcome to Everand!

  • Discover millions of ebooks, audiobooks, and so much more with a free trial

    From $11.99/month after trial. Cancel anytime.

    Introduction to N.C.M., a Non Contact Measurement Tool
    Introduction to N.C.M., a Non Contact Measurement Tool
    Introduction to N.C.M., a Non Contact Measurement Tool
    Ebook145 pages1 hour

    Introduction to N.C.M., a Non Contact Measurement Tool

    By Dennis R. Branch

    ()

    Read preview

    About this ebook

    This book is designed for the quality professional and student. It explains what a non contact measurement tool is, what it does, how it takes a measurement, why it would be used, how to utilize the data, what the benefit of using it is, how the measurement is made within a coordinate measurement grid and compares it to other coordinate measurement tools. With examples and visual aids throughout, under standing what is read is simplified.

    Examples include algorithms, measurement data, comparing measurements, root causing dimensional problems based on the data, data comparisons to other measurement tools, and correlation to other measurement tools.

    With a better understanding of the source of the data and how is it derived, the quality professional will have an improved ability to be proactive in preventing a quality issue from becoming another scrap part.


    LanguageEnglish
    PublisherTrafford Publishing
    Release dateDec 22, 2005
    ISBN9781466957381
    Introduction to N.C.M., a Non Contact Measurement Tool
    Author

    Dennis R. Branch

    The author has accumulated over twenty years of hands on experience working with laser measurement systems. He has obtained, technical training from two different manufactures of this type of measurement equipment and is recognized as one of the most proficient users of this measuring tool by Perceptron Inc., a manufacturer of the equipment. It had become apparent there was a lack of basic knowledge concerning the use of this type of measurement tool, and the ability to trust the measurement data it generated. Most of this misunderstanding stemmed from the attitude " If I cannot see it measure, then I cannot trust the data" and some mistrust of the data, came from the lack of not understanding how it performs the measurement within a coordinate grid measurement system. He has also noted the interest of this type of measuring tool from a local collage in his home state and other companies that came to tour his place of employment were referred to him for assistance in answering questions about the equipment. Over the years, he has transformed the use of the equipment at his employer from being used as a source of reference only measurement data to the intended decision making data. The need to educate others on the basics of this type of measuring tool became apparent with every lost opportunity of product quality improvement, improper usage and misunderstood expectations of the equipment. By increasing the awareness, understanding, and confidence in the equipments ability to provide the much-needed measurements, he has been able to improve his quality departments' response to preventing minor issues from becoming major ones and solving major quality issues in far less time than is required with a manual measurement method. Improved utilization of the equipment has also been realized. By continuously providing familiar statistical data, proving the equipments capability, and reliability, he continues to educate others that the data provided by a Non-Contact-Measurement system, is very reliable and highly beneficial to the company.

    Related to Introduction to N.C.M., a Non Contact Measurement Tool

    Related ebooks

    Teaching Methods & Materials For You

    View More
    View More

    Related podcast episodes

    Related articles

    • UNLIMITED

      Inner Vision

      Oct 7, 2022

      Inner Vision
      8 min read

    • UNLIMITED

      Strategic Command

      Nov 4, 2022

      Strategic Command
      9 min read

    • UNLIMITED

      Make Time For Tech

      Aug 29, 2019

      Make Time For Tech
      4 min read

    • UNLIMITED

      Facilities Systems

      Oct 21, 2018

      Facilities Systems
      5 min read

    • UNLIMITED

      Know Limits

      Jul 13, 2022

      Know Limits
      3 min read

    • UNLIMITED

      The Backwards Evolution

      May 7, 2021

      The Backwards Evolution
      8 min read

    • UNLIMITED

      AI, Digital Twins And IoT

      Apr 11, 2018

      AI, Digital Twins And IoT
      4 min read

    • UNLIMITED

      All In One Control

      Aug 18, 2019

      All In One Control
      2 min read

    • UNLIMITED

      Future Perfect

      Jan 3, 2021

      Future Perfect
      3 min read

    • UNLIMITED

      Is It Time For AI?

      Jul 2, 2021

      The upper echelons of motorsport are riddled with vast amounts of complex technology, both on and off the cars. Onboard contemporary high-end race machines, especially in the hybrid categories, you’ll find an array of electronic systems. And for effi

      3 min read

    • UNLIMITED

      A Fraction Too Much Friction?

      Sep 2, 2020

      A Fraction Too Much Friction?
      3 min read

    • UNLIMITED

      Robo-marshal

      May 3, 2019

      Robo-marshal
      8 min read

    • UNLIMITED

      The Not-so-distant Future

      Apr 11, 2018

      The Not-so-distant Future
      4 min read

    • UNLIMITED

      DIY HVAC Monitoring

      Jun 12, 2020

      In these dog days of summer, it is more important than ever for AC units to function properly – especially where social distancing efforts make in-home repairs increasingly difficult. SmartAC.com has officially launched with $10 million in funding fo

      2 min read

    • UNLIMITED

      Networking

      May 7, 2021

      Networking
      9 min read

    • UNLIMITED

      Integrated Workplace Management Systems

      Dec 23, 2018

      Property and facilities management are data-rich operating worlds. This is becoming even more complex as the Internet of Things (IoT) provides the capability to imbed sensors and diagnostic tools to monitor the use and performance of everything in re

      4 min read

    • UNLIMITED

      Network monitoring 2022

      Feb 10, 2022

      Network monitoring 2022
      4 min read

    Related categories

    Reviews for Introduction to N.C.M., a Non Contact Measurement Tool

    0 ratings

    0 ratings0 reviews

    What did you think?

    Tap to rate

    Review must be at least 10 words

      Book preview

      Introduction to N.C.M., a Non Contact Measurement Tool - Dennis R. Branch

      © Copyright 2005 Dennis R. Branch

      All rights reserved. No part of this publication may be reproduced, stored in a retrieval

      system, or transmitted, in any form or by any means, electronic, mechanical, photocopying,

      recording, or otherwise, without the written prior permission of the author.

      Note for Librarians: A cataloguing record for this book is available from Library and Archives

      Canada at www.collectionscanada.ca/amicus/index-e.html

      ISBN 1-4120-6910-6

      ISBN 978-1-4669-5738-1 (e)

      Image422.JPGImage431.JPG

      Offices in Canada, USA, Ireland and UK

      This book was published on-demand in cooperation with Traff ord Publishing. On-demand

      publishing is a unique process and service of making a book available for retail sale to the

      public taking advantage of on-demand manufacturing and Internet marketing. On-demand

      publishing includes promotions, retail sales, manufacturing, order fulfi lment, accounting and

      collecting royalties on behalf of the author.

      Book sales for North America and international:

      Traff ord Publishing, 6E–2333 Government St.,

      Victoria, BC vt p CANADA

      phone 250 383 6864 (toll-free 1 888 232 4444)

      fax 250 383 6804; email to [email protected]

      Book sales in Europe:

      Traff ord Publishing (uk) Limited, 9 Park End Street, 2nd Floor

      Oxford, UK x hh UNITED KINGDOM

      phone 44 (0)1865 722 113 (local rate 0845 230 9601)

      facsimile 44 (0)1865 722 868; info.uk@traff ord.com

      Order online at:

      trafford.com/05-1821

      10 9 8 7 6 5 4 3 2

      Table of Contents

      Preface

      CMM-NCM comparison

      Introduction

      Acknowledgements

      Terms and Concepts

      Theory Of Sensor Operation

      Types of Sensors

      Using a Dimensional NCM system Over View

      What to Measure

      Selecting a sensor for the measurement

      Selecting the fixture method

      Sensor / Algorithm Basics

      Algorithm Measurement Results

      Relationship measurements

      Data Analysis; Utilizing and comparing the data

      Dimensional Correlation Verification

      Calibration / Correlation to Other Measurement Tools Theodolite Calibration

      Correlating to a C.M.M

      Using a master part for measurement verification

      Correlating to a manual measurement

      Trouble Shooting Measurement Errors

      Evaluating Correlation Measurement Data

      Evaluating Manual Correlation data

      Evaluating Measurement Results of the Product

      Setting the limits

      Replacing a sensor

      Relocating / adding a new sensor

      List Of Examples

      Test Questions

      Answer Guide

      PREFACE

      By combining personal experience with technical information in this manual, the reader will have a comprehensive understanding of what Non Contact Measurement is, how it can best be utilized, understand the measurement data to make a sound quality decision and be able to establish a regular quality data monitoring system that will be of greatest benefit.

      Over the years, the utilization of N.C.M. equipment has been altered from a reference measurement only tool to a decision making measurement tool. In some cases replacing the use of C.M.M. equipment as the decision making tool.

      This is largely due to the accuracy and the speed at which the information can be obtained and provided by N.C.M. over C.M.M.

      N.C.M. is a computerized measurement tool that has been developed for use in a production facility that fabricates their products at a high rate of production per hour. It was developed in the early 1980s.

      As the name indicates the actual measurement does not require that the product be in physical contact with the measuring tool as you would with a height gauge, micrometer or other mechanical means.

      In order to maintain a high quality level of the product being fabricated it is required to measure the product on a regular basis. The data must also be reviewed, stored, readily accessible for future reference and monitored.

      With productivity increasing every year it is no longer enough to simply measure a single product one day then respond to the data the next or even several days later. By that time, it would be possible to have built several thousand defective products.

      The N.C.M. tool can measure a product on a moving production line equipped with a stop station, within seconds without interrupting the flow of production. There is no need to remove the product from production and reinsert it later as is required with a mechanical measurement method. It can be utilized with parts designed on a coordinate grid or the more standard isometric design system.

      Before this measurement tool was available, the measurements were taken by a mechanical means and required that the product be removed from a certain stage of production, set up for measurements, then measured and the data accumulated over a period and then evaluated. In the case of an automobile, this may have taken up to five days to complete the entire process, from acquiring the products to evaluating the measurement results, and then implementing a corrective action to a dimensional problem. All based on a maximum sample size of 10 units, sometimes less.

      With the use of statistical reporting requiring several units to be measured before we see a measurement trend that indicates a possibleproblem, there is no way to effectively prevent the problem from occurring with manual measurement data in a high volume production facility.

      With mechanical measurements we could be reacting to a dimensional problem that may have already occurred, and previously fixed. The data being reviewed may lead to an improper decision to again make a fix, thereby compounding the problem.

      With a computerized method of measurement, we would have the statistical data required (100% of production) to prevent the problem from exceeding the control limits in a matter of seconds. The storage and retrieval of the data from the computer makes monitoring and follow up of the quality level of the product easier and faster.

      To keep up with customer demand, N.C.M. equipment and its’ computing ability is always improving over time. It is important that the equipment manufacturers’ manuals are followed and that all equipment specific questions, are referred to their respective service departments.

      Each improvement to the system, such as changing from analog to a

      Enjoying the preview?
      Page 1 of 1