Linear Differential Transformer(LVDT) - Its structure is as shown below. Three sets of coils are wound around the outside of a hollow cylinder. Inside the cylinder is a movable conductive magnetic core. The primary coil is supplied with alternating current to provide magnetic The movement of the iron core will affect the reluctance of the secondary coil, thus causing the magnitude of the induced voltage to change.
Overview
Differential transformers are widely used in the measurement and measurement of various linear displacements in electronic technology due to their simple structure, good environmental adaptability, high sensitivity, high measurement accuracy, good linearity, stable output and smooth output curve, and small driving force. conversion, instrumentation and sensor technology. A differential transformer is introduced to output a certain controllable electrical quantity under the condition of given linear displacement, so as to realize the application of master command control. In view of various problems that arise during the design, manufacturing, trial production and debugging, the causes of the zero-point residual voltage of the differential transformer and its impact on actual electrical control are analyzed, as well as the geometric shape, size, electrical and magnetic characteristics of the differential transformer. The effect of the symmetry of the parameters on the zero-point residual voltage.
STR25-5
Load Cell sensor