How does temperature affect the performance of an LVDT or LVIT linear position sensor? Temperature changes can influence both the mechanical and electrical characteristics of a position measurement system. In this video, we explain how thermal expansion, temperature coefficients, electronic drift, and sensor construction can affect LVDT and LVIT performance. We also discuss the differences between AC and DC-operated LVDTs. Traditional AC LVDTs keep signal-conditioning electronics separate from the sensing element, which can make them well suited for applications involving wider or more demanding temperature ranges. DC LVDTs and LVITs typically incorporate electronics within the sensor, providing convenient DC-in/DC-out operation while introducing additional temperature considerations. Learn why specifications such as temperature coefficient, zero shift, sensitivity, span change, and operating temperature range are important when selecting a linear position sensor—and why the thermal characteristics of the surrounding mechanical system should also be considered. Need help selecting an LVDT or LVIT for a demanding temperature environment? CONTACT the HGSI engineering team to discuss your application.
