What are LVDT sensor used for?
What are LVDT sensor used for?
An LVDT is an electromechanical sensor used to transform mechanical motion into a variable electrical signal (current or voltage) and is used for measurement of displacement. They function as actuators for automatic control systems or as mechanical motion sensors in measurement technologies.
What is LVDT and its working?
The LVDT full form is “Linear Variable Differential Transformer” is LVDT. Generally, LVDT is a normal type of transducer. The main function of this is to convert the rectangular movement of an object to the equivalent electrical signal. LVDT is used to calculate displacement and works on the transformer principle.
What is the range of LVDT?
200 μm to 50 cm
LVDTs are one of the most popular position sensors. They are available in measurement ranges from 200 μm to 50 cm, the resolution is from 1 μm, and linearity up to 0.05%.
What is the output of LVDT?
The LVDT’s electrical output signal is the differential AC voltage between the two secondary windings, which varies with the axial position of the core within the LVDT coil. Usually this AC output voltage is converted by suitable electronic circuitry to high level DC voltage or current that is more convenient to use.
How is LVDT used to measure displacement?
An LVDT measures displacement by associating a specific signal value for any given position of the core. This association of a signal value to a position occurs through electromagnetic coupling of an AC excitation signal on the primary winding to the core and back to the secondary windings.
What is LVDT in control system?
LVDT is an acronym for Linear Variable Differential Transformer. It is a common type of electromechanical transducer that can convert the rectilinear motion of an object to which it is coupled mechanically into a corresponding electrical signal.
What is LVDT formula?
The formula for the LVDT output voltage is the differential voltage between the two secondary windings. Usually, the output voltage is converted by using suitable electronic circuitry. You can use a high-level current.
Where are LVDT used?
LVDTs have been widely used in applications such as power turbines, hydraulics, automation, aircraft, satellites, nuclear reactors, and many others. These transducers have low hysteresis and excellent repeatability.