Recent Posts

Evaluating the "Usefulness" of force calibration equipment

Usefulness may be the one word we often neglect to consider when purchasing force-measuring equipment, or any test equipment. Let's think about that for a bit and let it sink in. Most people I have run across seem to be concerned with price, a manufacturer's specification sheet, and maybe the physical size of the force-measuring […]

Specifying a Tolerance, the Difference Between Percentage of Indicated Value vs % of Full-Scale Output

In looking at various equipment, it seems the force equipment in the test and measurement industry specifically has mainly specified tolerances as a percent of full scale. Several crane scales, tension links, hand-held force gauges follow this trend when determining accuracy or tolerance. There are a few manufacturers who use % Indicated Value (IV). My […]

Converting an mV/V load cell signal into Engineering Units: Why this may be the most accurate and cost-effective way to use a calibration curve

Understanding what mV/V is and how does it relate to load cells Most bridge-based sensors typically specify a rated output Sensitivity (R.O.) shown in figure 1 below. This Rated Output is generally found under Electrical specifications. It is usually in mV/V, where mV/V is the ratio of the output voltage to the excitation voltage required […]

About Morehouse

This article is intended to give a brief history of Morehouse Instrument Company and Information about what Morehouse is beyond force and torque measurement. Morehouse has been in business since March 15, 1920. The company started as a local machine shop. Mr. Morehouse owned the company, and Harry E Zumbrun worked with him. When Mr. […]

How to Calculate the Resolution of a Load Cell

Per Section 4.14 of JCGM 200:2012, Resolution is the “smallest change in a quantity being measured that causes a perceptible change in the corresponding indication.” Over the years, this simple definition has become a topic of confusion amongst the metrology community. We are hoping to simplify how to calculate the resolution of the Unit Under […]

The Importance of Considering Reproducibility in the Measurement Process Uncertainty

Most people in the metrology community will agree that a calibration laboratory's ability to reproduce measurement results belongs in an uncertainty budget. Several Accreditation Bodies require reproducibility to be at least considered as part of a calibration laboratory's Calibration and Measurement Capability (CMC). The question on Reproducibility is, does it only apply to my equipment, […]

Morehouse Has an App to Convert Force to Mass, Mass to Force and it uses NOAA so it should be known to within 5 ppm!

When someone asks us about converting force to mass, Morehouse can now say we have an app for that. Not only will our app convert force to mass, but it will convert mass to force as well as convert units. It will convert force, torque, and pressure units. Anyone interested in downloading the app can […]

How to Calibrate S-Beam or S-Type Load Cells

How to Calibrate S-Beam or S-Type Load Cells and Achieve Good Results Figure 1 General S-Beam Load Cell General Overview of S-beam or S-Type load cells S-beam or S-Type load cells were designed for several weighing applications. Most were designed to be mounted in a scale, used as a lifting system, or process weighing for […]

Aircraft and Truck Scale Calibration Tips

Figure 1: Example of Aircraft Weighing Aircraft and Truck scales come in all different shapes and sizes and typically serve one purpose, to approximate the weight of an aircraft or truck. Why might that be important? For Aircraft's it's about knowing the center of gravity CG. The center of gravity will influence stability and performance. […]

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