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首页> 外文学位 >Development of a wireless sensor network equipped with ISFET pH measurement technology to facilitate monitoring of microalgae cultivation processes.
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Development of a wireless sensor network equipped with ISFET pH measurement technology to facilitate monitoring of microalgae cultivation processes.

机译：开发配备ISFET pH测量技术的无线传感器网络，以促进对微藻培养过程的监控。

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摘要

In response to the continuing high demand for transportation fuel in the 21st century, microalgae cultivation has emerged as one technology that could supply fuel derived from renewable sources. To ensure proper health and optimal production in a microalgae culture, several environmental parameters such as temperature, pH, dissolved oxygen, nutrient content, and other factors should be monitored continuously. In a large scale cultivation facility, the problem of developing an appropriate instrumentation and control system is compounded by the need to collect sensor information from many different locations simultaneously.;In this work, a wireless sensor network is proposed and demonstrated for the measurement of pH, dissolved oxygen, and temperature in a microalgae cultivation system. ISFET (Ion-sensitive field-effect transistor) technology is selected for pH measurement in this system, due to its advantages over traditional glass pH electrodes in durability and stability. The development of this sensor network is described in three main experimental phases: preliminary experimental work, a proof of concept experiment using a single pH sensor, and a performance evaluation using three pH sensors, one temperature sensor, and one dissolved oxygen sensor. The first two phases were designed for and tested at the NASA OMEGA (Offshore Membrane Enclosures for Growing Algae) project, and the third phase, the performance evaluation, took place in the open raceway ponds used for algae cultivation at the University of Nevada, Reno. A full description of each experiment is given, and the performance of the sensor network is described in terms of system reliability and drift characteristics.
机译：为了响应21世纪对运输燃料的持续高需求，微藻栽培已成为一种可以提供可再生资源燃料的技术。为了确保微藻培养的健康和最佳生产，应连续监测几个环境参数，例如温度，pH，溶解氧，营养成分和其他因素。在大型养殖设施中，由于需要同时从许多不同位置收集传感器信息，因此开发适当的仪器和控制系统的问题变得更加复杂。；在这项工作中，提出并演示了用于测量pH值的无线传感器网络。 ，溶解氧和微藻培养系统中的温度。由于ISFET（离子敏感场效应晶体管）技术在耐用性和稳定性方面优于传统玻璃pH电极，因此被选择用于该系统中的pH测量。该传感器网络的发展在三个主要实验阶段中进行了描述：初步实验工作，使用单个pH传感器的概念验证实验以及使用三个pH传感器，一个温度传感器和一个溶解氧传感器的性能评估。前两个阶段是为NASA OMEGA（用于生长藻类的离岸膜外壳）项目设计和测试的，而第三阶段是性能评估，是在里诺内华达大学用于藻类培养的开放水道池塘中进行的。给出了每个实验的完整描述，并根据系统可靠性和漂移特性描述了传感器网络的性能。

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  • 作者

    Malinowski, John Daniel.;

  • 作者单位

    University of Nevada, Reno.;

  • 授予单位 University of Nevada, Reno.;
  • 学科 Engineering Mechanical.;Chemistry Analytical.;Engineering Electronics and Electrical.
  • 学位 M.S.
  • 年度 2012
  • 页码 83 p.
  • 总页数 83
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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