In this Issue    • Encoder Sensors    • Application Papers   Encoder Sensors AET-Series sensors are versatile, wide-airgap sensors used with multipole disk magnets or magnetic linear scale tape. Full- and Half-Bridge Configurations The sensors are Wheatstone bridges comprised of tunneling magnetoresistance (TMR) elements. Both full-bridge and half-bridge versions are available. Half-bridge versions have a simple interface and smaller packages. Full-bridge sensors offer enhanced noise immunity and large differential output signals, and fully cancel common-mode interference fields. A Range of Pole Pitches Versions are optimized for a wide range of pole pitches from 0.5 mm to 5 mm, in packages as small as a 2.5 by 2.5 mm DFN:   Part No.  (click for more information)  Bridge Config-  uration   Pole Pitch   Package       Breakout Board       Compatible   Scale Tape AET050F-00E Full 0.5 mm MSOP8 Coming Soon 0.5 mm pitch AET075F-00E 0.75 mm AET100F-00E 1 mm AET100F-00E-EVB01 1 mm pitch AET120F-00E 1.2 mm Coming Soon    NEW!  AET200-10E Half 2 mm 2.5 x 2.5 mm DFN6 AET200-10E-EVB01 2 mm pitch AET500-02E 5 mm SOIC8 AET500-02E-EVB01 5 mm pitch   Design Support Breakout boards are 0.8 x 0.4 inch (21 x 10 mm) and have pre-soldered sensors, a standard 0.1" (2.54 mm) header and 1 mm pitch card-edge connectors. Popular scale tape pitches are in stock. An evaluation kit and demonstration board are also available. This video demonstrates a mechatronic piano player using one of these unique sensors as a linear position sensor:   And this video demonstrates ultra-precise rotation sensing with an AET-Series sensor and a multipole disk magnet:       Application Papers Neves, et. al., “Development of a proximity contactless ammeter based on GMR sensors for measuring direct currents,” Measurement: Sensors, January 2025. Summary: “...this manuscript describes the development and experimental results of a prototype of ammeter that enables the measurement of direct currents with high resolution, in relation to the one presented by ammeters, clamp meters based on coils and Hall sensors. It is a proximity sensor based on two [NVE] GMR sensors and precludes the need for involving the conductor in a magnetic ring (as is the case of conventional clamp ammeters). The proposed system was developed with the purpose of also estimating the distance between the instrument and the conductor, in specific applications, as in the case of conductors installed behind walls.” More Application Papers »

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