ISSN No.: 2455-6130 Special Issue: I, 2022, pp. 16-22 International Journal of Emerging Trends in Research 16 Website: www.ijoetr.com International Journal of Emerging Trends in Research Abstract Many times in an industry the angle needs to be measured of reference disc or button, which is very vital. In order to measure this angle the proposed changes are made to the existing LVDT and with these changes we can measure the change of angle in degrees on electronic display. The name given to the arrangement is Angular Variable Differential Transformer (AVDT). Keywords: Linear Variable Differential Transducer, Primary Winding, Secondary Winding 1. Introduction As explained in Fig.1 [1], small shift in the core results in change in voltage induced in two secondary windings. This result into displaying the difference in the voltage induced in secondary windings. When core moves to right side from the null position then the difference in the voltage is positive and when core is moved to the left side from the null position then the difference in the voltage is negative[2]. 2. Theory As shown in Fig. 4, the rack and pinion gear mechanism is introduced and angular movement of the disc is converted into linear displacement in arm. This results in linear displacement of core. When the disc is rotated clockwise then the arm will move to the right hand side of null position and the difference between voltages induced is positive. When the disc is rotated in anti-clockwise direction then the arm moves to the left hand side of the null position.The display unit will record and display the angle movement. This display is scaled according to the movement of arm and ultimately core to display angle. Reference Measurement Instrument: Linear Variable Differential Transformer (LVDT) LVDT stands 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. The transformer's internal structure consists of a primary winding centered between a pair of identically wound secondary windings, symmetrically spaced about the primary. The coils are wound on a one-piece hollow form of thermally stable glass reinforced polymer, encapsulated DESIGN OF ANGULAR VARIABLE DIFFERENTIAL TRANSDUCER Charlie Dadaji Fulzele 1 Assistant Professor, Mechanical Engineering Department, RGCER Nagpur, India charliefulzele@gmail.com