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Guidance on Uncertainty Budgets for Force Measuring Devices Part 2. Calculating Uncertainty in Accordance with ASTM E74 Standard

Guidance on Uncertainty Budgets for Force Measuring Devices Part 2. Calculating Uncertainty in Accordance with ASTM E74 Standard Calculating Uncertainty in accordance with ASTM E74 Standard Background: ASTM E74 Standard Practice of Calibration of Force-Measuring Instruments for Verifying the Force Indication of Testing Machines is the standard followed by many in North America for the […]

Guidance on Uncertainty Budgets for Force Measuring Devices Part 1. Why Do We Need a Solid Guidance Document?

Guidance on Uncertainty Budgets for Force Measuring Devices Part 1. Why Do We Need a Solid Guidance Document? Uncertainty Budgets for Force Measuring Devices Introduction: All calibration laboratories accredited to ISO/IEC 17025 must submit uncertainty calculations for the Calibration and Measurement Capability uncertainty claims included in the scope of accreditation. The assumptions made to determine the uncertainty […]

What Happens When You Overshoot a Test Point? (How Bad Could it be?)

What Happens When You Overshoot a Test Point? Various calibration laboratories use hydraulic, screw, and other force calibration machines where it is difficult not to overshoot a test point.  By talking about overshooting a test point, we are referring to loading past the desired point and then letting the creep in the hydraulic system naturally […]

The Top 5 Costly Force Measurement Mistakes

The Top 5 Costly Force Measurement Mistakes #1 of 5 Costly force measurement mistakes Most calibration laboratories will say a device is "In Tolerance" without considering the uncertainty of their measurement process. This equates to you not using a calibration laboratory that has standards to meet your needs and accounts for measurement risk properly. Most […]

Presenting a Tutorial at NCSL International

Presenting a Tutorial at NCSL International Presenting a Tutorial at NCSL Step 1. Write an abstract and state the learning objective.    The abstract is the summary of the class. The learning objectives are concise statements about what students will be able to do when they complete instruction. T17 — Fundamentals of Torque Calibration – […]

How to Calibrate Button Load Cells and Achieve Solid Results

How to Calibrate Button Load Cells and Achieve Solid Results How to Calibrate Button Load Cells - Intro Anyone that has tried to calibrate button-type load cells knows they do not repeat well in the rotation.  The sensitivity to off-axis or side-loading conditions is quite high.  High enough that 0.1 % of misalignment is going […]

Proving Ring Tare Load Correction Proof

Proving Ring Tare Load Correction Proof This blog post is on the strange side. I was rummaging through some of the work I did back in 1999 and found a proving ring tare load correction proof. I probably never published it as we were all waiting for the world to end at the turn of […]

lbf calculator - Adjusting lbf (pounds-force) weights for gravity at the point of use

lbf calculator - Adjusting lbf (pounds-force) Weights for Gravity at the Point of Use Morehouse lbf calculator or force to mass.  When weights are used to perform force calibrations they should be corrected for the gravity and air buoyancy at the point of use. Where the values of the weights are given in true mass […]

Digital Force Gauge Retrofit Options for Existing Morehouse Analog-Type Force Gauges

Digital Force Gauge Retrofit Options for Existing Morehouse Analog-Type Force Gauges Morehouse Instrument Company has introduced new types of Digital Force Gauges and digital force gauge retrofit options.  These new digital gauges offer improved performance and accuracy specifications such as: At 0.5 % of full scale, the new or upgraded digital force gauge is two […]
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