LVDTs and linear potentiometers are two types of position sensors within our wide portfolio of Sensor products.
Although LVDTs and linear potentiometers have many similarities, they also have a few key differences which make them more suited to certain industries and applications.
Potentiometers are often used in factory automation, process and automation control as well as general industrial applications. Linear potentiometers are also widely in Motorsport.
LVDTs are more suited to Aerospace applications or instrumentation/test where vibration or dither may be a key aspect. LVDTs also offer advantages in sealing to IP68.
LVDTs and Linear potentiometers both measure displacement of an object in a linear fashion. They both offer fast response, particularly in the case of Potentiometers with real time measurement. Both technologies are highly reliable, well suited to extreme environments and offer long operational life.
The main difference between LVDTs and Linear Potentiometers is that LVDTs are a non-contacting sensor whereas Linear Potentiometers sensors, unless specified as a non-contacting linear potentiometer, are not. LVDTs use a nickel-iron core surrounded by coils to determine the voltage change inside the LVDT which is then converted into an output AC signal where magnitude represents the amount of movement from the centre position of the nickel-iron core.
Our Linear Potentiometers use elastomer damped wipers to improve the life span and combat shock and vibration. LVDTs being contactless do not suffer from mechanical wear and therefore offer a very high operational life. However, although linear potentiometers are not friction free, they do offer the absence of electronics meaning they tend to be a more cost effective solution.////////////////
For more information please contact: Variohm EuroSensors Ltd Email: firstname.lastname@example.org Tel:+44 (0) 1327 351004 Fax: +44 (0) 1327 353564
Article date: 26 / Mar / 2018
LVDT vs Linear Potentiometer
Published by: Variohm EuroSensor
From 20th January 2017 Variohm Eurosensor Ltd is part of the discoverIE plc Group of companies
Variohm EuroSensor,Williams' Barn, Tiffield Road,Towcester, Northants NN12 6HP.
Tel: +44 (0) 1327 351004.
Fax: +44 (0) 1327 353564.