...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Instrumentation and Measurement, IEEE Transactions on >A microprocessor-based system for adaptable calibration and linearization of hall-effect position sensors
【24h】

A microprocessor-based system for adaptable calibration and linearization of hall-effect position sensors

机译：基于微处理器的系统，用于霍尔效应位置传感器的自适应校准和线性化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Wide use of the Hall effect in position sensing has been hindered not only by the nonlinearity of the transducer's output with respect to position, but also because the linearization techniques presently used require an accurate knowledge of each transducer's transfer function characteristics. This imposes severe constraints on sensor design and mandates very tight sensor manufacture tolerances. The proposed system demonstrates a method that adapts to relatively unpredictable transducer output characteristics and produces a calibrated, linear output. Little a priori knowledge or assumptions concerning the transducer's characteristics are required. An external reference transducer is used as input to a microcontroller-based signal-processing system that implements a real-time calibration procedure whereby the reference sensor and the Hall sensor measure position in tandem. The unique and variable characteristics of each transducer are converted to an accurate and predictable position measure via a look-up table that is automatically generated during the calibration procedure. An 8031 microcontroller-based prototype was developed for angular sensors and is programmable to maximize resolution for any angular range between 0 and 360°. The proposed system is discussed with regard to applications in transducer manufacturing and biomedical engineering.
机译：霍尔效应在位置传感中的广泛使用不仅受到传感器输出相对于位置的非线性的阻碍，而且还因为目前使用的线性化技术需要对每个传感器的传递函数特性有准确的了解。这对传感器设计施加了严格的限制，并要求非常严格的传感器制造公差。拟议的系统演示了一种方法，该方法适用于相对不可预测的换能器输出特性，并产生校准的线性输出。几乎不需要有关换能器特性的先验知识或假设。外部参考换能器用作基于微控制器的信号处理系统的输入，该信号处理系统执行实时校准程序，参考传感器和霍尔传感器可同时测量位置。通过在校准过程中自动生成的查找表，每个换能器的独特和可变特性被转换为准确且可预测的位置测量值。开发了基于8031微控制器的原型，用于角度传感器，并且可进行编程以最大程度地提高0至360°之间任何角度范围的分辨率。讨论了提出的系统在换能器制造和生物医学工程中的应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号