: Unlike encoders that may need "homing" after a power loss, an LVDT provides an absolute position signal immediately upon power-up. Environmental & Physical Specifications
: For wet or corrosive environments, look for IP67 or hermetically sealed models to protect internal windings from moisture and contaminants.
If you are integrating into a modern PLC or digital system, a DC LVDT with a 4-20mA or 0-10V output is typically the easiest to implement. For extreme aerospace or vacuum environments where electronics cannot reside near the sensor, an AC LVDT is the standard choice. Linear Variable Differential Transformers - Analog Devices buy lvdt
: There is no physical contact between the movable core and the coil assembly. This leads to:
: Most industrial LVDTs offer linearity of ±0.25% or better over their full sensing range, ensuring a highly accurate proportional output. : Unlike encoders that may need "homing" after
: Often housed in stainless steel, LVDTs are resistant to shock, vibration, and extreme temperatures (standard ranges often cover -30°C to +85°C , with high-temp versions reaching +150°C or more).
: Ability to follow rapid movements without lag from friction. : Often housed in stainless steel, LVDTs are
: No parts to wear out during operation.