Principles of Good Measurement: Density

 

DENSITY 

If there are changing weights, for a fixed volume, then density measurement is what you need. This will depend on the industry, application and product requirements, for example if you need to reduce the water content to increase concentration, or add heavier solids to the liquid to produce slurry, then this will change the density of the product you want to measure.

Instruments that measure density work by either measuring the weight of an known quantity, or by how the signal conveys the weight – the less of a signal, the more dense, or the more of a signal would be less dense. Obviously, you would need to understand this signal, and automate the process, so you don’t have to sit there and watch it 24/7. These measurements will often ensure the quality of your product.

This measurement principle is widely used for detecting changes in switching and measuring density itself. VEGA have a range of instruments, with different techniques, that detect the differences in density either at a switch point, or as a continuous measurement. These instruments are listed below:

Hydrostatic – VEGABAR/WELL Range

Nucleonic – VEGA OHMART Range

Digital Communications – DATAWARE

Related posts:

1. Principles of Good Measurement: Level Switching
2. Principles of Good Measurement – Conductance Level Switches & Probes
3. Principles of Good Measurement: Level Interface
4. Principles of Good Measurement – Nucleonic Non Contact Continuous Level Measurement
5. Drilling Mud Density Measurement Solutions