The three-axis accelerometer is based on the basic principle of acceleration to achieve work. Acceleration is a space vector. On the one hand, to accurately understand the motion state of an object, the components on its three axes must be measured. On the other hand, When the direction of motion of the object is known, only the three-axis acceleration sensor is used to detect the acceleration signal, and since the three-axis acceleration sensor is also based on the gravity principle, the three-axis acceleration sensor can realize two-axis plus or minus 90 degrees or two-axis 0- The 360 degree inclination angle is higher than the two-axis acceleration sensor by the correction angle of 60 degrees.
The three-axis gyroscope is also called “micro-mechanical gyroscope”, and the “micro-mechanical gyroscope” can also be called “MEMS gyroscope”, that is, the position of six directions is simultaneously measured, the moving track is accelerated, and the single-axis can only be measured. The amount in one direction, that is, one system requires three gyroscopes, and one of the three axes can replace three single axes. The 3-axis has a small volume, light weight, simple structure and good reliability, and is a development trend of the laser gyro. In short, the biggest role of a three-axis gyroscope is to “measure angular velocity to determine the motion state of an object, so it is also called a motion sensor.” In other words, this thing allows our device to know where it is and where it goes. where”
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