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The magnitude of the output voltage is proportional to the distance moved by the core (up to its limit of travel), which is why the device is described as having a "linear" response to displacement.

The coils are connected in reverse series, so that the output voltage is the difference (hence "differential") between the two secondary voltages.

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Q: Why LVDT is called linear and differential?
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Related questions

What does the abbreviation LVDT stand for?

The abbreviation LVDT stands for "Linear Variable Differential Transformer". In common usage, it is also just called a differential transformer, and measures linear displacement, i.e. movement.


What is lvdt?

The linear variable differential transformer (LVDT) is a type of electrical transformer used for measuring linear displacement.


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What is transducer and how it may be used to measure displacement?

Transducer is a device which convert physical signal into electrical signal ( current/voltage/resistance). for linear measurement we can use LVDT (Linear Variable Displacement Transducer/ Linear Variable Differential Transformer). and for rotary measurement we can use RVDT (Rotary Variable Differential Transformer)


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The Linear Variable Differential Transformer is a type of electrical transformer used for measuring linear displacement. A counterpart to this device that is used for measuring rotary displacement is called a Rotary Variable Differential Transformer.


Why linear variable differential transformer is called variable?

The clue is in the name - variable.


Use of linear variable differential transducer?

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