摘要
加速度是研究汽车安全的重要数据来源,而要获得可靠的加速度参数则要求加速度传感器有较高的精确性,针对三轴加速度传感器基本标定和坐标轴不垂直的校正问题,设计了相应的加速度传感器校正模型和模型求解算法,并通过实际测试对比加速度传感器在校正前和校正后的精度,从而来验证校正方法的可用性。经过该方法校正的多轴加速度传感器可以将不垂直性带来的测量误差减小到±2%以内,能满足多种实际工程测量的需求。
Acceleration is the important data sources of vehicle safety study, and the acquisition of reliable acceleration parameter requires the high precision acceleration sensor. The corresponding acceleration sensor calibration model and model solution algorithm are designed for the basic calibration of three-axis acceleration sensor, aiming at the revising problem of axis not vertical. The precision of acceleration sensor after calibrated and before calibrated are compared through the actual test to verify the availability of calibration method. After the calibration, the multi-axis acceleration sensor error caused by axis not vertical to each other can be reduced to less than 2 %, and this meets the needs of a variety of practical engineering measurement.
出处
《传感器与微系统》
CSCD
北大核心
2011年第11期72-74,78,共4页
Transducer and Microsystem Technologies
关键词
传感器校正
加速度传感器
垂直性
sensor calibration
acceleration sensor
verticality
