How Do I Calculate B Coefficients Using Data from My Force Calibration Report? At Morehouse, we generate calibration reports with both A and B coefficients. Any calibration performed following the ASTM E74 or ISO 376 standard will list both sets of coefficients. The A coefficients are used to solve for Response when the Force is […]
How to Gain Confidence in Your Measurements In the book Good to Great a concept is illustrated with three intersecting circles, which determine your company’s hedgehog concept. The hedgehog concept is based on asking three questions. “ 1. What are you deeply passionate about? 2. What can you be the best in the world at? […]
What is the Best Load Cell for a Reference Standard? What is the best load cell I can use as a reference standard? This question appears straightforward, but once we start to examine the issue, it takes a series of questions to answer. The most common answer is, "Well… that depends on what your expectations […]
How to Participate in an Interlaboratory Comparison (ILC) Many force calibration laboratories need help proving out their measurement capability. The ISO/IEC 17025:2005 listed interlaboratory comparisons (ILCs) in section 5.9.1. However, historically ILCs were not organized or completed because other less complicated methods were acceptable for monitoring the validity of the results. The current ISO/IEC 17025:2017 […]
How Do I Calculate TUR? How to Calculate TUR. Correctly calculating Test Uncertainty Ratio (TUR) is crucial because it is a commonly accepted practice when making a statement of conformity. It helps you analyze measurement risk and is often used in decision rules. Although TUR is defined in the ANSI/NCSL Z540.3 Handbook and ILAC G8, […]
Why Don’t My Load Cell Force Measurements Match My Calibration Report? You send your load cell out for calibration. When it returns, you begin using the load cell but notice that your measurements don’t agree with what the calibration lab reported. Why is there a discrepancy? This question has been posed to us in slightly […]
Top 5 Specifications to Consider for Load Cell Accuracy One of the most important considerations when purchasing a load cell is its accuracy. However, a load cell datasheet typically does not contain all the specifications needed to determine an accuracy statement. Which specification on a typical datasheet is most important? Do all specifications impact accuracy? […]
3 Ways to Prevent Damage to Your Force Calibration Equipment The purchase of force calibration equipment coupled with the calibration cost can be a large investment. Good, quality equipment provides a steady return on your investment for many years. Unfortunately, we see a lot of equipment damage such as broken connectors, severed cables, damaged load […]
The New Dimension to Resolution: Can it be Resolved? Our last blog, Device Resolution and the Impact on Consumer Risk, described why best practices should be followed for conformity assessments rather than drafting individual test protocols and standards. How should manufacturers and calibration laboratories correctly calculate both uncertainty and risk on equipment? Risk, Conformity Assessment, […]
