Terms Related to Measurement Methods:

Density: 
- The density of a body describes its mass in relation to its volume 
- “Pseudo-density” can be calculated from the dimensions and weight of the object in question
- Every material has a specific density 

Conductivity: 
- Conductivity refers to a material’s ability to transmit energy (e.g., electricity, heat) 
- Conductivity is measured in megasiemens per meter 
- Our devices measure conductivity using inductive eddy current measurement 

Magnetism: 
- Diamagnetism = the occurrence of a magnetic field (magnetization) when an external magnetic field is applied to a substance, whereby the magnetization is directed opposite to the external field 
In short: Diamagnetic materials are repelled by a magnet. 
- Paramagnetism = a form of magnetism in which a material exhibits no measurable magnetic moment in the absence of an external magnetic field, but becomes magnetized in the presence of an external field. 
In short: Paramagnetic materials are slightly attracted to a magnet. 
- Ferromagnetism = When an external magnetic field is applied, the elementary magnets align in the same direction. The ferromagnetic material itself becomes a magnet. 
In short: Ferromagnetic materials are attracted to a magnet. 

Susceptibility properties: 
- Describe the ratio of a material’s magnetization to the magnetic field strength 
- This so-called magnetic susceptibility can be measured using a magnetic balance