Measurements and insights from precision weighing

There are many questions that can be answered and insights that can be derived from an object’s weight or the variance from its expected weight. Some are based on simple physics, while others come from industry-specific knowledge. Changes or variations in weight, while sometimes very small, can be the easiest measurements to capture and analyse meaningfully. This makes it worthwhile to find ways of deriving key metrics from the weight – or weight variance – of products, components or subassemblies:

Contaminant

Comparing the expected weight of a product or component with its actual weight can indicate that a contaminant is present:

Air bubbles in a liquid or solid
Other contaminants present
Dust or residue has accumulated or not been properly cleaned

Absorption

Where other parameters are known, the weight of an item can provide a measure of:

Absorption of liquid or gas
Saturation of a solution

Weight sorters and checkweighers for small parts from CI Precision

Yield

In agritech or horticulture, the weight of a seed, or other natural products can provide direct insights into its state:

Developmental stage
Energy or protein content
Expected yield

Not picked up by visual inspection

The weight of items can indicate problems that could not be picked up with visual inspection, including:

It is deformed or broken
A part or subassembly is missing
It has been over or under-filled
It has been incorrectly filled (with something of a different density)

Processes

Certain additive or subtractive processes can be verified in part by the weight of the final item, including:

A drilling, grinding or etching process has been missed
A coating has been left off, or is too thick or too thin
Drying, baking or heat treatment was not consistent

Help Topics

Measurements and insights from precision weighing
Driving process improvement
Quality control applications
Research and development applications

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