Linear Variable Differential Transformers (LVDTs) are critical components in many industrial measurement applications that require linear position feedback
In certain applications, adding an optional liner to the LVDT bore can enhance precision and longevity.
A bore liner is a tube, often made of PTFE, inserted into the LVDT during manufacturing. It reduces the core-to-bore clearance, which enhances operational efficiency by maintaining core alignment and increasing durability in demanding environments.
1. Core Alignment
Precise core alignment is essential for consistent output. The bore liner stabilizes the core’s motion along the sensor axis, reducing misalignment and improving measurement repeatability.
2. Wear Protection
Industrial applications demand durability. An optional bore liner prevents the LVDT core from coming into contact with the coil assembly, reducing frictional wear on both the core and coil assembly and extending the LVDT’s operational life.
If your LVDT does not have a bore liner installed by the manufacturer, an alternative solution is to apply shrink tubing over the LVDT core. This can be done in the field using a section of heat shrink tubing and a heat gun.
In rugged industrial applications, precision and durability are paramount. A bore liner can help to maximize the efficiency and lifespan of free-core LVDTs.
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