GT sensors

NVE's GT Sensor products are based on a Low Hysteresis GMR sensor material, and are designed for use in industrial speed applications where magnetic detection of gear teeth and magnetic encoder wheels is required.


GMR sensor technology NVE


GT Sensors with both analog and digital outputs are available. The analog parts feature the large signal and robust characteristics which NVE's GMR materials are known for (NVE's GMR sensors are not damaged by extremely large magnetic fields). The sensor elements themselves are designed to provide usable output with even the smallest gear teeth. Single and double output versions are available; the second output is phase shifted with respect to the first, to provide quadrature for determining direction.

The digital sensors take advantage of the high performance characteristics of GMR sensors to provide a 50% duty cycle output with a wide tolerance in airgap and temperature variations.

GT Sensors are available in low profile MSOP8, TDFN SO8, and TDFN6 packages, in order to fit into the tightest possible spaces. An evaluation kit is available, containing a selection of sensors, magnets, and PCBs, so that the user can test the parts in their application.

Kits and documentations

AG920-07 - GT Sensor Evaluation Kit
NVE's newest evaluation kit includes analog and digital version of the GT sensor product line, plus our DD001-12 stand alone signal processing IC. A variety of PCB configurations are provided so that the parts can be tested in different housing and barrel sizes, including the M8 housing. Magnets for biasing are also included, along with NVE's catalog and application notes on CD ROM.

GT sensor catalog (En)

GMR catalog (En)

Evaluation kits (En)