The Centre of Excellence is based at Taylor Hobson's
headquarters in Leicester and offers a comprehensive
metrology service for customers. These services include:

1. Product and theory training either at Taylor Hobson or your premises.
2. Instrument and metrology advice.
3. A trial measurement service to help customers decide which product to buy.
4. Lectures and presentations

The Centre of Excellence team has access to various Taylor Hobson instruments to measure surface texture, roundness, form, squareness, etc. This allows them to provide the metrology solutions for all kinds of problems, enabling them to advise you which intrument you need.

Metrology Solutions
The Centre of Excellence runs customised training courses for all Taylor Hobson customers.

General Roundness and Surface Courses
Run to give you an insight into the measurement of surface finish and roundness.

Instrument Training
Essential for the customer who wants to get the most from their Taylor Hobson instruments.

Metrology Solutions

Taylor Hobson's Centre of Excellence provides a measurement service which develops solutions to your metrology problems. Some examples include:

• Erosion of the human tooth by orange juice
  - A customer was carrying out research, investigating the amount of erosion by acidic foodstuffs. By using a Form Talysurf Series with Y-Stage and Talymap 3D software, it was possible to view the erosion after a short period of time.
  
  
• Minute devices designed to keep arteries open - called Stents
  - The customer required various measurements of diameter, strut dimensions, angle etc. They also asked for particular requirements, such as an automated process, and a pass or fail system. The measurements were carried out on a Primus using the camera with zoom lens option, and a rotary table.
  
  
• The glaze defects on ceramic tiles
  - The customer required 3D analysis of the surface finish of several ceramic tiles. The solution to this problem was to use a Talyscan 150 measuring system.
  
  
• Explosive fuses
  - The explosive was not firing fully, and the customer suspected a problem with the fuse body. They decided that this would need to be checked, and required measurements of cylindricity, straightness and parallelism. These measurements were carried out on a Talyrond 265

For help with your metrology problems, contact the Centre of Excellence on

Tel: +44 (0) 116 276 3779
Fax: +44 (0) 116 246 0579
email: cofe@taylor-hobson.com

For one-off measurements, see

UKAS Measurement Services

2008 General Courses

Surface Finish and Roundness Metrology course details

These courses are specifically aimed at users, managers and designers who are seeking a practical, “hands on” knowledge of the subject from the experienced user’s perspective.

Taking place at our Centre of Excellence in Leicester, England, the courses are being given bythe Centre’s Metrology Engineers - experts who have many years’ experience in solving real measurement problems.
Our engineers have access to the latest measurement technology and surface finish roundness instruments.

Bring your own measurement query
We invite all attendees to bring their measurement problems along for discussion during the “hands on” sessions which form part of the courses. For any solutions that we can’t identify at the time, we can arrange for a measurement report at a later date.

A. Surface Finish Metrology

• Why do we need to measure Surface Finish?
  Identifying the reasons for surface finish measurement.
• Measurement Methods
  Explanation & discussion of different types of contact & non-contact measurement methods.
• Instrument Datum's
  Examination of the different types of measurement datum's used in instrumentation.
• Reproducing the Surface
  Discussion of stylus tip geometry and stylus effects on measurements.
• Surface Finish Terminology
  What are Form, Waviness and Roughness?
• Filters
  Methods of filtering, different filter types and their effects on analysis.
• Parameters
  Parameter types, definitions and common applications.
• Material Ratio Curve (Bearing Area)
  Derivation of the MR Curve, it's uses and associated parameters.
  
• The Rk Parameter
  How are the Rk parameters derived? What are they used for?
  
• Form Measurement
  Measurement and analysis techniques for Straightness and Radius - Form Errors.
  
• Calibration Methods
  Various methods of instrument calibration - Which is best?
  
• Drawing Indication
  How to specify and interpret surface finish on a technical drawing.
  
• Further content if required on the day:
  Basic Introduction to Conics and Aspherics
  What are Conics and Aspherics?
  Measurement and analysis techniques.
  
• Basic Introduction to 3D Measurement
  3D Measurement methods, analysis and parameters.

B. Roundness Metrology

• Methods of roundness measurement
  Looking at different in measurement techniques and types of roundness instrument.
• Reference circles
  What are reference circles? How are they calculated? Which should we use?
• Eccentricity and Run-out
  What are they? How are they calculated?
• Filters and Harmonics
  Filters and their effects. How to relate the harmonic content back to the profile.
• Flatness Measurement
  How is flatness measurement assessed? How does this relate to Squareness and Run-out?
• Straightness Measurement
  Measurement and analysis of straightness.
• Magnification and its effects
  Explanation of the effects of magnification and how to prevent misinterpretation of graphs.
• Measurement - Sources of Error
  Cosine errors, stylus force, asperities etc.
• Data Points
  What do we mean by data points? What is their relevance to the integrity of results?
• Measurement of Interrupted Surfaces
  Techniques for hole, hill and asperity removal.
• Kinematic mounting
  How to hold the part, prevention of movement during measurement without distortion.
• Cylindricity
  Instrument axes requirements for measuring cylindricity.
• Reference Cylinders
  What are reference cylinders? How are they calculated?
• Cylindricity Terminology
  Discussion on the various cylindricity parameters including Parallelism, Co-axiality, and Total Run-Out.
• Cylindricity Measurement Technique
  How to measure a cylinder - do's and don'ts!
• Further Analysis of the Component Including:
  What is slope analysis and DFTC? Where is it used? Error separation - What does this do?
  Enhancing results by measurement technique for roundness, straightness and cylindricity.

Dates 2008

Course Fee

Standard course prices are £650 + VAT.

Taylor Hobson are also able to schedule One Day courses
on request, when individual institutions have specific requirements.
If these two day courses do not meet your needs, please contact:

Darian Mauger
Centre of Excellence Manager
Tel: 0116 - 276 3779
email: dmauger@taylor-hobson.com

All courses include a notes folder, Taylor Hobson's Surface Finish or Roundness Guides, Course Content CD with PowerPoint Presentations as used in the Training sessions and a light buffet lunch. Courses run from 9am until 4pm with 30 minutes for lunch and two 20 minute coffee breaks.

These courses are held in the lecture theatre at Taylor Hobson's headquarters in Leicester.
Taylor Hobson subsidiaries also offer training courses - see local websites or contact your local representative for full details. Or the Leicester Centre of Excellence on:

Tel: +44 (0) 116 276 3779
Fax: +44 (0) 116 246 0579
email: cofe@taylor-hobson.com

Are you getting the most from your Taylor Hobson instrument?
Do you need more information on data sampling, applying filters or maybe the correct use of parameters?

Taylor Hobson's team of experts run regular courses on individual instruments which are tailored to help you get the maximum from their instrument.

Due to detail, these courses have a maximum class size of three people. To get the most out of these courses, you are invited to bring along components that you need to measure..

For more information, contact the Centre of Excellence on:

Tel: +44 (0) 116 276 3779
Fax: +44 (0) 116 246 0579
email:cofe@taylor-hobson.com