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Geomagnetic sensors, often known as electronic compasses, are devices that can sense the Earth’s magnetic field. Geomagnetic sensors can detect the geomagnetic field and determine direction.
Geomagnetic Sensor ICs are three-axis magnetic sensors that combine a control IC with magneto-impedance (MI) components to detect magnetic fields in a compact package. The MI sensor is ideal for both ordinary ecompass applications and sets demanding even higher precision because it consumes less current and produces less noise than conventional techniques.
Two-axis (X and Y) and three-axis devices including a Z axis that monitors the magnetic force in that direction are both used in geomagnetic sensors.
Only the X and Y axes are employed in simple compasses because slope (inclination) is not a factor. The results of the three axes from the geomagnetic sensor must be combined with an accelerometer to correct the compass when tilted in the right direction.
The global geomagnetic sensor IC market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
The 3-axis MI type magnetic field sensor from ROHM is intended to identify weak magnetic fields.Photo of the 3-Axis Magnetic Sensor IC ROHM BM1422AGMV. In order to detect weak magnetic fields, the BM1422AGMV from ROHM is a 3-axis magnetic sensor that combines magneto-impedance (MI) components and a control IC in a tiny package.
The MI sensor is ideal for both ordinary e-compass applications and products demanding even higher precision because it has much lower current consumption and noise than devices utilizing other common technologies. The MI sensor is ideal for both ordinary e-compass applications and products demanding even higher precision because it has much lower current consumption and noise than devices utilizing other common technologies.
The low-power, low-noise BMM150 from Bosch Sensortec GmbH is a three-axis digital geomagnetic sensor that is ideal for compass applications. The BMM150 provides absolute spatial orientation and motion vectors with high accuracy and dynamics using sensor data fusion software tailored to the hardware.
The BMM150 is also well-suited to assisting drones with accurate heading. The BMM150 can be used in conjunction with an inertial measurement unit consisting of a 3-axis accelerometer and a 3-axis gyroscope, such as the BMI055 from Bosch Sensortec.
MEMSIC Inc. has announced the availability of the MMC3630KJ, an ultra-small magnetometer with a BGA package for portable devices. MEMSIC is introducing the MMC3630KJ series of highly accurate, dependable, and ultra-small package 3-axis AMR magnetometers.
This new AMR magnetometer series is aimed at major global mobile device designers and manufacturers, as well as other industry verticals that require high performance motion sensing.
The magnetometer in the MMC3630KJ series contains an integrated monolithic 3-axis AMR sensor and a signal conditioning ASIC in an ultra-small (1.2×1.2×0.5mm) BGA package. With a magnetic sensing bandwidth of 600Hz, the MMC3630KJ can provide better than 10% accuracy in eCompass applications. The design also significantly reduces system power consumption and processing time.
