Difference Between LVDT & RVDT

Hello, friends, I hope you all are doing great. In today’s tutorial, we will discuss the Difference Between LVDT & RVDT. LVDT transforms the linear motion in the ac electric signal while RVDT transforms the angular motion into the electric signal.

In today’s post, we will have a detailed look at both LVDT and RVDT with the detailed and find their different parameter to compare them. So let’s get started with the Difference Between LVDT & RVDT.

LVDT

The device that changes the linear motion in the electric signal is called LVDT.
Its full form is Linear Variable Differential Transformer.

Its core exists in rectangular form.
Its input voltage is from one volt to two forty volts root mean square.
It also called differential transformer used to finds the value of linear displacement.
It is called position transducer offered the infinity cyle life.
It operating temperature range is twelve hundred Fahrenheit
Its operating frequency is fifty to twenty kilohertz
Its core structure is like rectangle
work on voltage range of one to twenty volts
It used in power turbines, aircraft, satellites.
Their hysteresis value is less and has good repeatability
Its operating based on electromagnetic connection and no need of physical connection

RVDT

The device that used to measure the angular motion by transforming it into the electric signal
It consists of a rotor that is operated through outer force application.
Its output is ac which is the result of the angular motion.

Its operating frequency is from four hertz to twenty kilohertz
Work on three volts
Its operation is easy
Due to linear output can be used for a certain application
It used in different weapon system
The full form of RVDT is Rotatory Variable Differential Transformer.
Its input voltage value is three volts root mean square.
It works on ac and its primary side gets energized.

Its operating life is larger
It shows linear operation when ac is given to it for certain angular motion
Its main parts are a laminated stator, and a rotor having two poles.
Its stator has 4 slots used in primary and secondary sides.
Accuracy is good
Its price is a less small structure and less sensitivity
The physical dimension of its core is cam.
It provides sensitivity two to three millivolts per volt per degree of rotation.
Its measurable range is Upto the ± forty degrees.
It uses connectionless coupling so its operation lasts for a longer time interval.