• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Proceedings of ESMATS 2011: 14th European space mechanisms and tribology symposium.;Proceedings of ESMATS 2011: 14th European space mechanisms and tribology symposium. >CONTACLESS LOW RESOLUTION ANGULAR SENSOR
【24h】

CONTACLESS LOW RESOLUTION ANGULAR SENSOR

机译：非接触式低分辨角传感器

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

Nowadays, low resolution angular sensors mounted onrnSADMs and APMs are more often potentiometers.rnInformation is supplied through a voltage proportionalrnto the measured angle. Because of its design, suchrndevice includes rubbing contacts and has a dead zonernfor which no voltage is transferred.rnIn order to remedy to these imperfections,rnCODECHAMP and CNES develop a contactless lowrnresolution angular sensor, including an electricrnredundancy. This type of encoder can be easilyrnintegrated into various telecommunication platforms.rnThe final encoder output can be:rn- a whole analog ramp over 360°;rn- or whole analog ramp over 180° with arnposition identification signal over half revolution ;rn- or a digital information.rnIt will have an accuracy of +/- 0.5% and a resolutionrnfrom 10 to 12bits. The power supply voltage will bern5V±5% and the consumption will not exceed 30mA.rnFirst, the principle of electro-optical signals modulatedrnby a polarimetric device was selected. A firstrnbreadboard has confirmed the encoder feasibility.rnSecond, the concept was adapted to the wavelength ofrnthe infrared LEDs and a digital calculation was chosenrnfor the signal processing. A second breadboardrnincluding the representative electro-optical componentsrnwas used as baseline for the assessment of accuracyrnbeginning of life and of sensitivity to the thermal andrnradiation environments.rnThird, an on-going research including an electroopticalrnmodel of the sensor will allow to manufacturernspecific photoreceptors and ASIC. After this, arnvalidation engineering model will be performed.rnThe works carried out in the frame of this project havernled to a registration of CODECHAMP-CNES inventionrnpatent on May 2010. The achievement of this projectrnwill be a potentiometer type sensor without dead zonernand particularly robust to geometrical defaults.
机译：如今，安装在SADM和APM上的低分辨率角度传感器通常是电位计。信息是通过与所测角度成正比的电压来提供的。由于其设计，这样的设备包括摩擦触点，并且具有不传递任何电压的死区。为了纠正这些缺陷，CODECHAMP和CNES开发了一种非接触式低分辨率角度传感器，包括电冗余。这种类型的编码器可以很容易地集成到各种电信平台中。rn最终的编码器输出可以是：rn-360°上的整个模拟斜坡； rn-180°上的整个模拟斜坡，带有半转的位置识别信号； rn-或数字信息。它将具有+/- 0.5％的精度和10至12位的分辨率。电源电压为5V±5％，功耗不超过30mA。首先，选择了由偏振器件调制的电光信号原理。第一个面包板已经确认了编码器的可行性。其次，该概念适应了红外LED的波长，并选择了用于信号处理的数字计算。第二个包含代表性光电组件的试验板被用作基线，以评估寿命的开始以及对热和辐射环境的敏感性。第三，正在进行的包括传感器光电模型的研究将允许制造商特定的感光器和ASIC。此后，将执行验证工程模型。该项目框架内的工作已于2010年5月获得CODECHAMP-CNES发明专利的注册。该项目的成果将是一种无死角的电位计型传感器，并且对几何形状特别坚固默认值。

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