MultiDimension Technology Co., Ltd. TMR Geartooth Sensor TMR4M04B

Description TMR4M04B geartooth sensor is composed of a dual-channel push-pull Wheatstone full bridge including eight high sensitivity tunneling magnetoresistance (TMR) sensing elements. The placement of TMR sensing elements is designed for specific gear pitches in different gear modules. The dual-channel Wheatstone full bridge outputs two orthogonal sine and cosine signals with the rotation of the gears. The period of this signal equals to the gear pitch to measure the rotation position and direction of the gear. TMR4M04B is available in compact LGA6L (3mm × 6mm × 0.9mm) package, fit 0.4 module gear. LGA6L Features and Benefits Tunneling magnetoresistance (TMR) technology Adapt to gears of different modules High saturation field DC (zero speed) operation Sine/cosine signal output with accurate phase difference Excellent thermal stability Excellent resistance to external magnetic field interference RoHS & REACH compliant Applications Gear speed and direction measurement Linear and angular speed sensing Linear and angular displacement sensing