What is An LVDT?
LVDT stands for Linear Variable Differential Transformer. An LVDT is also referred to as a linear displacement transducer, or linear position transducer. This sensor device measures linear displacement (or linear position) very accurately. The basic technology behind an LVDT is described below.
Technology: the typical LVDT sensor consists of a primary coil and two secondary coils wound on a coil form. A ferromagnetic core links the electromagnetic field of the primary coil to the secondary coils. Differencing the output of these coils will result in a voltage proportional to the relative movement of the core versus the coils.
|Fact||What this means to you|
|No contact between sensing elements||Infinite Life|
|Extremely rugged transducer||Can operate in harsh environments|
|Infinite resolution||Very small increments of movement are measured|
|Absolute measurement||No loss of position upon power down|
|Analog input and output||Signal conditioning compatible with most systems|
|Excellent repeatability||Can perform very precise go/no-go applications|
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