Functional Diagram Of Lvdt. Ad2s93 one technology way p o. Ad598 functional block diagram an external sine wave reference source two secondary windings connected in series and the moveable core to couple flux be tween the primary and secondary windings.
Inside the sensor there is a coil system consisting of a primary winding and two secondary windings which converts the linear displacement into an electronic signal. The primary coil of linear variable differential transformers winding is wound on the entire length of non ferromagnetic liner or bobbin which is typically made of some ceramic or plastic material. The typical output of ac an lvdt is shown in figure 2.
A lvdt linear variable differential transformer is an analogue sensor for measuring displacement.
The coil assembly is typically mounted to a stationary form while the core is secured to the object whose position is being measured. The primary winding is connected to an alternating current source. Lvdt is used to calculate displacement and works on the transformer principle. The lvdt transformer consists of a single primary winding p1 and two secondary windings s1 and s2 wound on a cylindrical former.
