09-05-2023, 02:04 AM
#imu (English Inertial measurement unit) is a device used to measure object’s three-axis attitude Angle and acceleration. Common IMUs include a three-axis gyroscope and a three-axis accelerometer, and some 9-axis IMUs also include a three-axis magnetometer.
Get product reference: https://www.ericcointernational.com/iner...ment-units
The main disadvantage of using IMU navigation is that they usually accumulate errors, including Abbe errors. Because the guidance system will continue to add the position results calculated by the detection to the original position information (see trajectory calculation), although the errors in the measurement are small, these errors continue from one position to another. Accumulation leads to “drift”, or the difference between the system’s perceived location and the actual location becomes larger and larger. Location tracking systems (such as the Global Positioning System (GPS)) can be used to continuously correct offset errors.
#aviation #aerospace #inertialnavigation #automation #maritime #gps
❓ Why IMU has such weakness?
As we can see, common IMU include a three-axis gyroscope and a three-axis accelerometer. What’s the model and measuring principle of gyroscopes and accelerometers?
? ? ?
https://www.ericcointernational.com/info...95405.html
P.S. Read the reference ? and get the model. Don’t miss it!
Get product reference: https://www.ericcointernational.com/iner...ment-units
The main disadvantage of using IMU navigation is that they usually accumulate errors, including Abbe errors. Because the guidance system will continue to add the position results calculated by the detection to the original position information (see trajectory calculation), although the errors in the measurement are small, these errors continue from one position to another. Accumulation leads to “drift”, or the difference between the system’s perceived location and the actual location becomes larger and larger. Location tracking systems (such as the Global Positioning System (GPS)) can be used to continuously correct offset errors.
#aviation #aerospace #inertialnavigation #automation #maritime #gps
❓ Why IMU has such weakness?
As we can see, common IMU include a three-axis gyroscope and a three-axis accelerometer. What’s the model and measuring principle of gyroscopes and accelerometers?
? ? ?
https://www.ericcointernational.com/info...95405.html
P.S. Read the reference ? and get the model. Don’t miss it!