摘要:由于地磁场具有长期稳定的特点,基于三轴磁传感器的地磁测量技术正成为国内外的研究热点。然而由于工艺水平的限制,磁传感器本身材料的限制和弹体本身铁磁材料的影响,导致地磁传感器会产生一系列误差,这些误差若不能校正,就会严重影响地磁场测量的准确度和精确度。因此,迫切地需要对误差因素进行研究,并建立误差模型和误差校正模型以获得更加准确和精确的地磁数据。27605
本文首先分析地磁传感器误差的来源并对对自身误差模型、环境误差模型和综合误差模型进行综述,用地磁场理论值加上综合误差模型得到地磁场的测量值。然后根据误差产生的原因综述软磁和硬磁误差校正数学模型,对地磁场测量值进行标定。 毕业论文关键词 地磁传感器 三轴磁传感器 误差模型 误差校正模型
毕业设计说明书外文摘要
Title Study on Calibration of Rotating Shells Sensor
Abstract
Due to the geomagnetic field has the characteristics of long-term stability, based on three axis magnetic sensor geomagnetic measurement technology is becoming a hot spot of research at domestic and abroad.However because of the limitations of technological level constraints and the materials of magnetic sensor itself, a series of errors will be caused to the geomagnetic sensor generates .It will seriously affect the accuracy and precision of the measurement of the geomagnetic field, if these errors not corrected . Therefore,it is urgent to study the error factors, and establish the error model and error correction model to obtain more accurate and precise geomagnetic data.
At first, this paper analyzes sources of the geomagnetic sensor error and overview its error model, environmental error model and comprehensive error model,and use geomagnetic field theory value and the comprehensive error model to get the value of measurement of the magnetic field. Then according to the reasons which cause the error to overview the error of soft and hard magnetic error correction model of magnetic field measurement calibration,and then correct the calibration results.
Keywords Geomagnetic Sensor Three Axis Magnetic Sensor Error Model Error Correction Model
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