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An LVDT is much like any other transformer in that it consists of a primary coil, secondary coils, and a magnetic core. An alternating current, known as the carrier signal, is produced in the primary coil. The changing current in the primary coil produces a varying magnetic field around the core. This magnetic field induces an alternating (AC) voltage in the secondary coils that are in proximity to the core. As with any transformer, the voltage of the induced signal in the secondary coil is linearly related to the number of coils. The basic transformer relation is: (1)


Products & Services
Linear variable differential transformer (LVDT) linear position sensors have a series of inductors in a hollow cylindrical shaft and a solid cylindrical core. These devices produce an electrical output proportional to the position of the core Search by Specification | Learn more about LVDT Linear Position Sensors
Motor coils are used with motors, generators, stators, and armatures. Learn more about Motor Coils
Power transformers convert power-level voltages from one level or phase configuration to another.  They can include features for electrical isolation, power distribution, and control and instrumentation applications. Search by Specification | Learn more about Power Transformers
AC motors include single, multiphase, universal, induction, synchronous, and gear motors. They also include servomotors.   Search by Specification | Learn more about AC Motors
Toroidal transformers typically consist of copper wire wrapped around a cylindrical core. This design prevents the magnetic flux that occurs within the coil from leaking. Search by Specification | Learn more about Toroidal Transformers

Product Announcements
Ohio Semitronics, Inc. - Rogowski Coils for AC Current Measurements
Measure AC current from mA to hundreds of kA... (read more)
Hsiang Cheng Electric Corp. - Clamp on type CT - Taiwan made
Conforms to BSEN 60044-1 / IEC60044-1 Split-core transformer Clip on feature for easy installation Total isolation based on IEC 60044-1... (read more)
Micro-Epsilon - eddyNCDT 3700: High Resolution Displacement Sensor
Non-Contact Displacement Sensors, series NCDT 3700 are based on the eddy current principle and are used for measurements against electrically conductive materials. They measure with extreme resolution... (read more)
Triad Magnetics - Step Up/Step Down Leaded Autotransformer
50-2000VA Single Primary and Secondary The Triad Autotransformers Series is designed as a single-winding transformer in which the primary coil is a fraction of the entire winding for voltage... (read more)

Topics of Interest
Another means of changing output voltage in a transformer is to alter the physical orientation of the primary and secondary relative to each other. In a transformer the primary windings produce a... (Read More)
A transformer is an energy transfer device. It has an input side (primary) and an output side (secondary). Electrical energy applied to the primary is converted to a magnetic field which in turn,... (Read More)
15.1 Winding Polarity A transformer consists of two windings viz., primary and secondary coupled to a common magnetic core. International standards define the polarity of the primary and secondary... (Read More)
Transformers are electromagnetic devices that transfer electrical energy from one circuit to another by mutual induction. Mutual induction is the coupling of inductances by their mutual magnetic... (Read More)
A. White 13.1 Introduction The tremendous development and progress in the transmission and distribution of electrical energy during the past 100 years may not have been possible but for the... (Read More)
See more product announcements for LVDT Linear Position Sensors
SubSea High-Pressure - Temperature Postion Sensor

SubSea High-Pressure - Temperature Postion Sensor
Macro Sensors, A Division of Howard A. Schaevitz Technologies


AC- LVDT Position Sensor / LVDTs PR 750

AC- LVDT Position Sensor / LVDTs PR 750
Macro Sensors, A Division of Howard A. Schaevitz Technologies


Compact LVDT

Compact LVDT
RDP Electrosense


11 See more product announcements for LVDT Linear Position Sensors