What is a Cosine Weighing Error? A cosine weighing error is an error that results from the load not aligning perfectly with the weight axis. The weight axis is a component that is perpendicular (at 90-deg) to the scale/load cells (see black arrow in diagram below). Cosine errors result from 2 possible conditions: 1) the load has a slight sideways force being applied to it, or 2) the load cells (scale) are not on level ground Let’s take a look at an example with no cosine error. This illustration shows how our cosine error is zero when the weight is aligned perfectly with the weight axis. Since they are both parallel, the angle between them is 0. The cosine(0) is 1, which means there is no cosine weighing error. This is the ideal scenario for weighing. Now let’s look at when the load has a slight sideways force on it. When a sideways … Continue reading aabWhat is a Cosine Weighing Error?