How to Calibrate Cable Tensiometers Does the Type of Cable GAC versus SSAC Make a Difference? What is a Cable Tensiometer? Cable tensiometers are devices used to measure the tension or force in cables, wires, and ropes. They are commonly employed in engineering, construction, and industrial applications to ensure the proper tension of cables to […]
Lower Limit Factor Improve Calibration Accuracy for Load Cells and Other Force Measurement Equipment LLF, or Lower Limit Factor, is a statistical estimate of the error in forces computed from the calibration equation of a force-measuring instrument when the instrument is calibrated following ASTM E74 standard practice for calibration and verification for force-measuring instruments. The […]
Load Cell Reliability A customer asked us about the stability specifications of our load cells. The initial reaction was that no one does that because there are too many variables. Load cell reliability will depend on the complete system and use. These include using different adapters, different cables, changing thread engagement, overloading load cell, the […]
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 […]
Small Force Measurement: Understanding the Challenges and Solutions when Measuring Small Forces Measuring small forces accurately can be a significant challenge for calibration laboratories, researchers, and engineers. Small force measurement is crucial for many applications, such as testing materials, monitoring biomedical devices, and studying the behavior of cells and molecules. In this blog, we'll explore […]
Tension Link Calibration (3 Easy Steps to Yield Repeatable Results) Tension Link Calibration requires advanced knowledge of the calibration process to pass an instrument. There will be additional errors if there is any variation in the adapters used for calibration. Here at Morehouse, we have done testing using different pin sizes and adapters. Forged pins, […]
2 Facts About How a Force Transducer Measures Force #1 What is a Transducer? In the broad sense of the term, a transducer is a device that turns one type of energy into another type. Some examples are: What is a transducer, battery example A battery is a transducer that converts chemical energy into electrical […]
How to Comply with ILAC P14 when Reporting Expanded Uncertainty ILAC P14 is a mandatory policy document for calibration laboratories accredited to the ISO/IEC 17025 standard. How can a laboratory ensure that expanded uncertainty is reported in compliance with ILAC Policy Measurement Uncertainty in Calibration, ILAC P14? In ILAC P14, section 5 relates to calibration […]
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? […]
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 […]
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 […]
