Dr. Hetland is a recognized author of informative
articles in many leading publications. Below are samples
of these articles, which can be viewed by selecting the page
sample or the article title
links.
To read the articles you must have Adobe® Reader®. If
you need the free Adobe® Acrobat Reader®,
click here.
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ASME B89.7
Measurement Uncertainty
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Understanding and Economic Benefits
What is Measurement Uncertainty?
The B89.7 National Committee has published a guide to help understand and implement the Measurement Uncertainty principle. This reference guide compiles the documents available in ASME relating to Measurement Uncertainty.
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Select Version:
Short—9 Pages
Long—18 Pages |
Inertial Sensor Components Achieving Higher Mechanical Precision with Profile Tolerancing
December 2011 |
Profile Tolerancing
A commitment to precision GD&T using profile tolerancing and other geometric controls is essential for establishing a true partnership between OEMs and suppliers.
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Making Sense of analytical software
December 2010 |
Analysis of a cylindrical feature
A critical challenge facing medical OEMs and suppliers
is validating the “analytical” software that determines
compliance to Rule 21 CFR Part 11 regarding mechanical
drawings for components and assemblies.
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Providing expert insight on orthopaedic technology, development, and manufacturing
Spring 2010 |
Speaking a Precise Language
Orthopaedic component manufacturers should use profile
tolerancing to achieve high mechanical precision.
Dr. Hetland discusses the increased complexity of
surface geometries and the decreasing feature tolerances
of orthopaedic components that is driving the need for
unprecedented precision in product design definition. |
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Strategic Sourcing for the Orthopaedic Industry
Winter 2009 |
Software Validation Considerations within Medical Companies per "FDA 21 CFR PART 11"
Dr. Hetland discusses the critical challenges facing today’s medical OEMs and suppliers
in validating analytical software used for determining
compliance to mechanical drawings for components and
assemblies. This article will make visible some of the risks
and limitations in current software validation and provide
direction to simplify future validation initiatives. |
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Strategic Sourcing for the Orthopaedic Industry
Fall 2009 |
Mechanical Precision of Medical Components
Achieved with Profile Tolerancing
Dr. Hetland discusses how medical components are increasing in their complexity of surface geometries and decreasing feature tolerances, both of which are driving the need for unprecedented precision in product design. |
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Injection Molding
February 2004
Basic Elements: Zero tolerance: A new way of
looking at precision
To say we are all used to plus/minus tolerancing is a
drastic understatement, yet as demands on quality rise,
and many parts shrink and become more complex, our old ±
may not cut it anymore. |
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Twin Cities
Business Monthly
November 2003
Do you speak Y14.5?
Greg Hetland does, and he's making manufacturers more
competitive with it. |
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Minnesota
Technology
Summer 2003
Zero Tolerance
If Greg Hetland had his way, avoidable errors will soon
be a thing of the past for manufacturers. |