What is a linear variable differential transformer?

Linear variable differential transformer is a special electrical transformer that has an output voltage and phase, which is determined by the linear position of its core. It uses two secondary windings that share a common core. When the core material is exactly between two secondary winding, there is an overall abolition of outputs, if the two windings are connected in series optics mode. If there are two insulated and the same secondary windings, the output voltage will be the same, and if the two secondary windings are connected in the series, there is a possibility that these two phases are added or canceled. DOT convention is used to simplify phase considerations. The dot and no winding dot will be everything needed to connect the outputs because the series helps or compared to the series. With the help of series, the voltage is doubled by the output of one winding, while in the series against, the voltage is canceled and produced almost no output.

2 whenThe core is located in the center, the outputs are the same and completely canceled if the series is against. Once the core moves from the center, it will be on one output winding. The result is the output voltage with a voltage and phase, which is determined by the position of the core.

The rotary variable differential transformer (RVDT) can be used to monitor the angular shift. The inner core can be rotated at an angle to create a different output for both windings. The linear relocation is monitored by a linear variable differential transformer, while the rotary variable differential transformer uses a rotatal or angular shift. For example, the angle position of the booster radar antenna can be generated by RVDT.

Linear variable differential transformer only works with AC current. It can be used as a sensor for monitoring linear position in certain applications. Further designs of linear converters are simplified by digital techniques. For example, the horizontal position of the print head along orderKU on the page can be coded with sensors referred to as optically affected converters. These field converters produce the impulses of a specific relationship to each other, so the detectable left and right bound shift is detectable.