High Precision Analog Magnetic Scale Sensor
Featured Product from MultiDimension Technology Co., Ltd.
TMR4101
The TMR4101 magnetic scale sensor contains two push-pull half-bridges, each consisting of two high-sensitivity tunnel magnetoresistance (TMR) elements. The layout of the TMR elements matches the width of the magnetic poles. When the sensor moves along the length of the scale, the sensor outputs two quadrature sine wave signals, each corresponding to the width of a pair of magnetic poles. By decoding these two sine wave signals, the relative displacement between the chip and the scale can be accurately measured.
The TMR4101 magnetic scale sensor chip uses a small package DFN4L (1.32 mm × 0.66 mm × 0.3 mm), which reduces the requirements for chip installation, making the structural design of the system more flexible and convenient for assembly in narrow spaces.
MultiDimension Technology can provide magnetic scale medium with customizable lengths as the accessory of TMR4101 to meet our customers’ needs.
Features and Benefits
Tunneling magnetoresistance (TMR) technology
Detects magnetic scale period of 0.8 mm
High sensitivity
Wide operating voltage range
Allows for larger air gap
Analog voltage outputs for A and B phases
Good temperature stability
RoHS & REACH compliant
Applications
Camera Autofocus System
Gear motion speed and direction detection
Linear and angular velocity sensing
Linear and curved displacement measurement
Magnetic scale and magnetic encoder
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MultiDimension Technology(MDT®) is a leading supplier of magnetic sensors specializing in Tunneling Magnetoresistance (TMR) technology. The company offers high-quality TMR magnetic sensors and system solutions for industrial and consumer sensor applications. MDT has corporate headquarters in Zhangjiagang Free Trade Zone, Jiangsu, China, with branch offices located in San Jose, CA, USA and Shanghai, China. MDT owns a unique portfolio of intellectual properties and state-of-the-art manufacturing facilities that support volume production of high-performance, low-power and low-cost sensors to satisfy the most demanding customer needs. Led by its founding team of elite experts and veterans in magnetic sensor technology and engineering services, MDT is committed to creating added values to its customers and ensuring their success.
