| 基于单片机的数字微加速度计静态测试平台设计 |
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| 引用本文： | 李振波,李疆,刘北英.基于单片机的数字微加速度计静态测试平台设计[J].传感器与微系统,2009,28(2):87-90. |
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| 作者姓名： | 李振波 李疆 刘北英 |
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| 作者单位： | 北京科技大学,机械工程学院,北京,100083 |
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| 摘 要： | 设计了一种新型的PWM数字微加速度计自动测试平台。该技术基于AT89S52单片机，适用于重力场条件下PWM数字输出的加速度计的快速测试。系统脱离了计算机的辅助计算和控制，利用单片机自动控制测试过程，并独立完成数据的拟合计算，极大地简化了测试系统，并利用此平台完成了ADXL202E数字加速度计静态模型的辨识任务，标定了加速度计的标度因数和零偏2个重要的性能指标。该测试平台测试精度优于2mgn。
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| 关 键 词： | 单片机 数字微加速度计 静态模型辨识 |
Design of measuring platform for static performances of digital micro-accelerometers based on single-chip microcontroller |
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| LI Zhen-bo,LI Jiang,LIU Bei-ying.Design of measuring platform for static performances of digital micro-accelerometers based on single-chip microcontroller[J].Transducer and Microsystem Technology,2009,28(2):87-90. |
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| Authors: | LI Zhen-bo LI Jiang LIU Bei-ying |
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| Affiliation: | ( School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China) |
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| Abstract: | A new automatic test platform for micro-accelerometers with PWM digital output is designed.The platform,based on an AT89S52 single-chip microcontroller,is able to perform fast test of PWM output micro-accelerometers at gravitational field.This platform carries out automatic control and test only with a single-chip,and completes relative calculation alone without computer's aid.It simplifies the test system considerably,and accomplishes identification of the static model for ADXL202E,a PWM output digital micro-accelerometer.And two important parameters,scale factor and bias instability,can be derived from the model.The precision of the platform is above 2 mgn. |
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| Keywords: | single-chip microcontroller digital micro-accelerometer static model identification |
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