Category: Scale Calibration and Weighing

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 […]

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. […]

Using Mass Weights to Calibrate Force Devices Can Result in a Large Measurement Error

Morehouse Benchtop 10,000 lbf Calibrating Machine When metrologists talk about measurement error, we’re talking about the difference between the nominal value and what the instrument is reading. If 10,000 lbf is applied to a force measuring device and the readout displays 10,002 lbf, then the device has a 2 lbf bias. If we load the […]

Adjusting lbf (pounds force) weights for gravity at the point of use

Adjusting lbf (pounds force) Weights for Gravity at Point of Use When weights are used to perform force calibrations they should be corrected for the gravity and air buoyancy at the point of use. Where the values of the weights are given in true mass the force in lbf is determined using the following formula: […]

Force Applications for Mass Reference Standards

Our good friend, Mark Ruefenacht of Heusser Neweigh and a Mass Metrology Instructor at NIST, pointed out that most mass calibration laboratories will issue certificates of calibration only listing conventional mass (unless True Mass is requested). This may create some confusion for those trying to convert the Conventional Mass of a mass reference standard to […]

Tension Link Good Measurement Practice

Tension Links: Are your measurements accurate? You are out in the field with a tension link, load link, or some type of digital dynamometer to use for a weighing application. You need pins to engage into the unit. What can you use? Slings? Maybe one size pin with one diameter on one end and another […]

How to Convert Weights to be used as Force Standards from Mass and Force Transducers to Mass

The mass of a body relates to the amount of material it contains. Forces are defined by Newton's second law of motion as expressed in the equation: F = kma Since it is impractical to make an accurate determination of force directly from this equation - at least as a routine procedure - it is customary to […]

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