SaM - Characteristics of Different Kinds of LVDTs

IMPORTANTE There exists many different kinds of LVDT sensors, their characteristics vary a lot:

• They operate between $1$ Volt and $24$ Volts for instance.
  And the frequency we have already said it’s a range of this type, so from $50\text{Hz}$ to $20\text{kHz}$ in general.
• The full scale of this kind of devices can go from $\pm 100$ micrometers up to $\pm 25$ centimeters, so very different.
• The resolution can arrive to $0.1$ micrometer (precise devices).
• The non-linearity error is below $1\%$.
• Also here you see how the sensitivity is defined, not very useful.
  This way of defining the unit of measure of the sensitivity: $V/x/V$ or $V/V/\text{cm}$ means that the sensitivity also depends on the input voltage, the higher the voltage, the higher the sensitivity, ==the real unit of measure of the sensitivity is $\frac{1}{\text{m}}$==.
  Also remember we defined previously the input voltage for LVDTs as "$E_1$".