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Category: Force Calibration Standards

How to Calibrate Cable Tensiometers: Addressing Error Sources and Promoting Standardization

How to Calibrate Cable Tensiometers: Addressing Error Sources and Promoting Standardization Figure 1: Henry Zumbrun uses a Morehouse Cable Tensiometer Machine (PCM-2MD-T1). How to Calibrate Cable Tensiometers: Introduction Cable tensiometers are precision instruments used to measure cable tension in aerospace, industrial, and structural applications. Accurate calibration of these devices is essential to ensure reliable force […]
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TUR and Picking the Right Load Cell Distributor (UPC vs. PC vs. Calibration Cells)

TUR and Picking the Right Load Cell Distributor (UPC vs. PC vs. Calibration Cells) The Question That Keeps Coming Up A customer recently asked: “The quote earlier was for Ultra-Precision load cells. Do we need to go for that grade to calibrate devices known to within 0.1 %, or is there an alternate model that […]
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Deadweight vs Hydraulic Force Calibration: Understanding the Difference

Deadweight vs. Hydraulic Force Calibration: Understanding the Difference  Selecting between Deadweight vs Hydraulic Force Calibration is one of the most critical decisions in any force calibration laboratory. The choice directly impacts measurement uncertainty, productivity, and compliance with international standards such as ISO 376 and ASTM E74.  This document explains how each method realizes force, the […]
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Understanding the Normal Distribution Made Easy

Understanding the Normal Distribution   The normal distribution, sometimes called the bell curve or Gaussian distribution, is one of the most important concepts in statistics. It describes how values of a variable are spread, and it often appears in nature, science, and everyday life. What is the Normal Distribution? At its core, the normal distribution […]
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The Role of the En Ratio in Force Calibration Confidence

The Role of the En Ratio in Force Calibration Confidence In the world of calibration, proving that your measurements are both accurate and defensible goes beyond simply watching control charts. While control charts are powerful for spotting drift or unusual trends, they don’t answer a critical question: are our stated measurement capabilities truly valid? To […]
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The Ultimate Standard: Why Deadweight Force Machines Deliver Unrivaled Stability and Ultra-Low Measurement Uncertainty

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Deadweight Force Machine Stability: Long-Term Reliability in Force Calibration Morehouse has a new paper on Deadweight Force Machine Stability titled "Deadweight Primary Standards: Best Practices and Their Associated Risks for Stability Determination in Compliance with ISO/IEC 17025" Overview Deadweight force machines are considered the pinnacle of force calibration standards, delivering the lowest possible measurement uncertainties […]
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High Capacity Force Calibration Above 4.4 MN (1,000,000 lbf)

High Capacity Force Calibration Above 4.4 MN (1,000,000 lbf) Figure 1 Picture of Morehouse High Capacity Force Calibration 10MN System UCM Using Three Symmetrical Morehouse Load Cells In previous posts, we have discussed ASTM E74 requirements for secondary standards. However, we have not discussed what happens when primary standards cannot calibrate the secondary standards. Such […]
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Load Cell Accuracy: What is Hysteresis?

What is Hysteresis? Almost any load cell specification sheet has a term called Hysteresis. This particular article hopes to explain what the term load cell hysteresis is. Load Cell Accuracy: Simple Definition In a simplistic sense, hysteresis is a way to measure how well a load cell returns to its starting point when force is […]
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Understanding Load Cell Specifications from the Specification Sheet

Load Cell Specifications Explained Figure 1 Example of a Typical Morehouse Load Cell Specifications Sheet   Load cells are precision devices used to measure force or weight, and their performance is defined by various specifications. The purpose of this article is to explain the typical load cell specifications sheet. Let's break down the key parameters […]
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Understanding Load Cell Resistance and Its Impact on Performance

Understanding Load Cell Resistance and Its Impact on Performance: A Comparison Between 350 OHM and 2800 OHM Load Cells At Morehouse, we have been asked about the differences between load cell input and output resistances, which typically range from 350 OHM to 2800 OHM. This blog aims to provide a deeper understanding of load cell […]
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Expressing SI Units on a Keyboard: Rules and Keyboard Shortcuts

Expressing SI Units on a Keyboard: Rules and Keyboard Shortcuts Anyone who has ever written an article, manuscript, website copy, copy for their calibration certificates, or any writing involving proper SI usage has likely had some confusion on how to make sure what they are writing is technically correct.   We see it all of […]
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Accuracy and Precision in Force Measurement Simplified

Accuracy and Precision in Force Measurement Simplified When taking measurements, two critical concepts to understand are Accuracy and Precision. While related, Accuracy and Precision describe different aspects of measurement quality. Accuracy refers to how close a measurement is to the true value. A measurement is considered accurate if it is close to the actual or […]
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 Morehouse Instrument Company, Inc.
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