LVDT has-

Explanation:

LVDT (Linear Variable Differential Transformer):

• LVDT (Linear Variable Differential Transformer) is to convert the rectangular movement of an object to the equivalent electrical signal.
• LVDT is used to calculate displacement and works on the transformer principle.
• The LVDT alters a linear dislocation from a mechanical position into a relative electrical signal including phase and amplitude of the information of direction and distance.
• The working principle of the linear variable differential transformer or LVDT working theory is mutual induction; The dislocation is nonelectrical energy that is changed into electrical energy.​​

• The inner coil is the primary, which is excited by an AC source as shown.
• Magnetic flux produced by the primary is coupled to the two secondary coils, inducing an AC voltage in each coil.

​Applications:

• This transducer can also work as a secondary transducer.
• LVDT is used to measure the weight, force and also pressure.
• Some of these transducers are used to calculate the pressure and load.
• LVDT’s are mostly used in industries as well as servomechanisms.
• Other applications like power turbines, hydraulics, automation, aircraft, and satellites.