Linear position sensors are devices that connect to an object or piece of machinery and convert the linear displacement of the object into an electrical signal that is proportional to the object's displacement. Linear position sensors are available in many mechanical styles and mounting configurations, with a variety of measurement (stroke) lengths.
Linear position sensors convert the linear displacement of an object into a proportional electrical signal. Linear position sensors are available in many mechanical styles and mounting configurations with a variety of measurement (stroke) lengths.
Types of linear position sensors include linear potentiometers that convert the linear displacement to a resistance value via the use of an internal variable resistor or linear position transducers that convert the linear displacement to an analog signal such as 0-10VDC or 4-20mA. The latter are more specialized and used when higher accuracy is required.
Linear potentiometers use resistance between the wiper terminal and end terminals to provide a distance measurement.
Linear Variable Inductance Transducers LVITs are contactless devices with no friction issues or moving parts that can wear out. LVITs exhibit outstanding repeatability, with resolution limited only by the electronics used with them. All of these transducers have a single output of 0-10V or 4-20mA (depending on model).
Contactless magnetostrictive linear position transducers operate on the same principle as other linear transducers, but since they are contactless, they offer a longer mechanical lifetime and their technology provides immunity to electromagnetic interferences.