The Standard Morehouse Proving Ring The calibration standard against which all others are measured is available in digital versions. Digital versions have proven to be more accurate, easier to use, and are the preferred option. Proving rings are often the choice for those wanting stability. This page is kept up for reference only. Morehouse Proving […]
Guidance on Uncertainty Budgets for Force Measuring Devices - A2LA: This provides guidelines for identifying all significant contributions to measurement uncertainty in the calibration of force-measuring instruments. It serves as a means for laboratories to be compliant with A2LA R205 – Specific Requirements: Calibration Laboratory Accreditation Program. If you enjoyed this content, check out our […]
TAR versus TUR: Why TAR should RIP ASAP In our last blog, Examining the History of TAR and TUR, we examined several outdated, and to some extent wrong, practices, such as Test Accuracy Ratios (TARs) and requesting NIST traceable calibrations. Remember when they buried the word "DEF"? Maybe we, as metrologists, need to do that […]
Digital Proving Ring Reduces Error The Morehouse digital proving ring reduces operator error and maintains the known stability of a Morehouse analog proving ring. These rings measure the deflection of the ring in digital "counts" rather than by a mechanical micrometer. Calculations can be faster, with less operator action. Proving Rings are known for: Stability: […]
The Design, Development, and Commissioning of a 2kNm Torque Standard Machine for Highly Accurate Torque Calibrations: This is a 2007 article detailing the world's second-most accurate torque machine at Morehouse. Here at Morehouse, we provide torque calibration from 1Nm to 2kNm. For more details on our torque calibration service, click here. If you enjoyed this […]
Examining the History of TAR and TUR Why examine TAR and TUR? Hasn’t each topic been covered for decades now? When we look at TAR and TUR concepts, we find that many in the metrology community have adopted TUR. Both guidance documents and standards have moved away from TAR. However, when we look at the […]
Morehouse Brinell Calibrator Specifications: Overall Dimensions: Standard Version 5.25” x 2” x 5.875” high. A special Low Profile version is offered at a height of 4 " Certified accuracy: 0.1% Weight of Calibrator: 4 lbs Calibrated Loads: 500 kgs.; 1,000 kgs.; 1,500 kgs.; 2000 kgs.; 2,500 kgs.; and 3,000 kgs. Approx. deflection at capacity in […]
Calculating Force Uncertainty for force machines. This free document identifies all significant contributions to measurement uncertainty when using a force calibrating machine. Calculating Force Uncertainty describes what is needed to achieve a measurement uncertainty of better than 0.02 % of the applied force.
Torque Calibration: Why Torque Control is Important - Intro At Morehouse we teach torque classes, give webinars on torque, and perform torque calibrations on reference standards. We strive to create a safer world by helping companies improve their force and torque measurements. However, we are not immune to the safety hazards that can result from […]
