Sensors with Digital Output – A Metrological Challenge
Sensors with Digital Output – A Metrological Challenge
复制标题
具有数字输出的传感器——计量挑战
DOI：
10.1051/metrology/201922002
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Philipp Begoff
中科院分区：
文献类型：
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作者：
M. Mende;Philipp Begoff
物联网(IoT)以及其他许多新的应用都要求传感器已经能够处理传感器内部的数据，并或多或少地直接与环境交换预处理数据。这类传感器通常具有数字输出，因此挑战了通常具有模拟输入通道的电流校准系统。此外，大多数校准标准都是为模拟世界编写的，不适合带有内部A/D转换器和数据预处理的传感器。根据作者在数字输出加速度计校准方面的经验，本文将概述在数字传感器世界中我们将面临的挑战。这类传感器的校准系统将是什么样子？如果传感器内部的信号处理是黑匣子，我如何计算测量不确定度？本文对这些挑战进行了分析，并对如何应对挑战进行了展望。
The Internet of Things (IoT) as well as many other new applications require sensors that can already process data inside the sensor and exchange the pre-processed data more or less directly with their environment. Such sensors typically have a digital output and thus challenge current calibration systems which usually have analogue input channels. Furthermore most calibration standards were written for an analogue world and do not fit to sensors with internal A/D converters and data pre-processing. Based on experiences of the authors with the calibration of accelerometers with digital output, the paper will give an overview over the challenges that we will face in a digital sensor world. How will calibration systems for such transducers will look like? How do I calculate a measurement uncertainty if the signal processing inside a sensor is a black box? The paper addresses the challenges and tries to give an outlook how to meet them.