How to Calculate Load Cell Specific Risk Step-by-Step Instructions Many people struggle with decision rules and how to calculate risk. This article provides step-by-step instructions to calculate Measurement Uncertainty, Guard Band Acceptance Limits, and Probability of False Acceptance (PFA). Load Cell Specific Risk Example Calculation: To Calculate PFA, the Excel function is NORM.DIST. Risk upper […]
Videos on How to Correct Load Cell Measurement Errors Are you struggling with load cell calibration? Are you making critical errors? You are not alone! But worry no more because we have a treasure trove of video resources to help you conquer load cell measurement errors, calibration challenges and achieve accurate force measurements. Browse our […]
6 Things Everyone Should Know About NIST Traceable Force Measurements Many organizations with people in them still use outdated terminology. Such terminology uses the term NIST traceable force measurements or requests that calibration be NIST traceable. In measurement standards, the term "traceability" often invokes thoughts of the National Institute of Standards and Technology (NIST), […]
Guarded rejection: 1 Valuable Tool for Reducing the Risk of False Rejection When assessing the conformity of a product or service to a specified requirement, it is crucial to have a high degree of confidence in the decision. This is especially true when the consequences of a false rejection or false acceptance are high. Guarded […]
A Simplified Global and Specific Risk Example A company has hired us to measure the speed of cars on a stretch of a single-lane road. The customer wants options using both Global and Specific Risk examples as they are unsure what method will give them what they need to meet the specification as they know […]
Understanding Global Risk in Simple Terms In the world of engineering and product design, there's a concept that Henry Petroski discusses in his book, "To Engineer is Human: The Role of Failure in Successful Design." He suggests that engineers and companies might become complacent when things are going well. They might not take the necessary […]
Delving into Specific Risk: A Comprehensive Understanding of PFA and PFR Specific risk in metrology, mainly focusing on the Probability of False Acceptance (PFA) and Probability of False Rejection (PFR). These concepts are crucial in the decision-making process based on measurement results. Specific Risk Specific risk, as the term suggests, is a risk that is […]
A Simplification of the Differences Between Specific and Global Risk Understanding the Differences Between Specific and Global Risk is a complex topic. For this article, we are going to explain the difference between specific and global risk without getting into too much detail. In metrology, risk is a crucial factor influencing the decision-making process based […]
Decision Rules - Our Top 10 Recommended Reading Many people struggle with decision rules and implementing decision rules. At Morehouse, we have been privileged to be part of the Metrology Handbook 3rd Edition, where we helped write a chapter on decision rules. Though it was an honor to write that and other chapters, there are […]
Morehouse MURA Metrology Chatbot Morehouse has launched our Metrology Chatbot. The bot is found on our website and is active on every page. The major advantage of our MURA (Measurement Uncertainty Resource Assistant) is it is trained using all of the material from our website and more. See our official press release here. This might […]
What can happen when we use an accuracy specification and assume all the measurements are centered in relation to the specification limits? It is a typical problem in the metrology community, where many papers assume a centered process or Measurement. When the Measurement deviates from the true value, it is said to have a bias […]
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, […]
