Label: Multi-axis sensor |
Category: Popular Science Library |
Article interpretation of six-axis sensor and nine-axis sensor
Six-axis sensor
Six-axis sensor generally refers to three-axis gyroscope + three-axis accelerometer.
Six-axis sensor manufacturers:
Yingmeisheng: ICM-20608, MPU-6555, MPU-6500, MPU-6000, MPU-6050...
MPU-6500 featured on HTC Vive VR and Oculus Rift VR
ST: 6-axis sensor module LSM330DL......
Fairchild: 6-axis inertial detection unit (IMU) "FIS1100". The FIS1100 consists of a 3-axis MEMS angular velocity sensor (gyroscope), a 3-axis MEMS acceleration sensor, and a motion processing coprocessor "AttitudeEngine".
Nine-axis sensor
Nine-axis sensor generally refers to three-axis gyroscope + three-axis accelerometer + three-axis geomagnetometer, there are also six-axis accelerometer + three-axis gyroscope, and there are also six-axis gyroscope + three-axis accelerometer.
The so-called nine-axis sensor is actually a combination of three sensors: a 3-axis acceleration sensor, a 3-axis gyroscope, and a 3-axis electronic compass (geomagnetic sensor). The three parts have different effects and cooperate with each other. They are commonly used motion sensing and tracking elements in electronic products such as mobile phones, tablet computers, and game consoles. They are used for interactive control in various software and games.
As an integrated sensor module, the nine-axis sensor reduces the circuit board and overall space, and is more suitable for use in light and portable electronic devices and wearable products. In addition to the accuracy of the equipment itself, the data accuracy of the integrated sensor also involves correction after welding and assembly, as well as matching algorithms for different uses. Appropriate algorithms can fuse data from multiple sensors, make up for the lack of a single sensor in calculating accurate orientation and orientation, and then achieve high-precision motion detection.