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Low-cost photonic sensors for carbon dioxide exchange rate measurement

机译：用于二氧化碳交换速率测量的低成本光子传感器

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摘要

Carbon dioxide (CO_2) measurement has an important role in atmosphere monitoring. Usually, two types of measurements are carried out. The first one is based on gas concentration measurement while the second involves gas exchange rate measurement between earth surface and atmosphere [1]. There are several methods which allow gas concentration measurement. However, most of them require expensive instrumentation or large devices (i.e. gas chambers). In order to precisely measure either CO_2 concentration or CO_2 exchange rate, preferably a sensors network should be used. These sensors must have small dimensions, low power consumption, and they should be cost-effective. Therefore, this creates a great demand for a robust low-power and low-cost CO_2 sensor . As a solution, we propose a photonic sensor that can measure CO_2 concentration and also can be used to measure gas exchange by using the Eddy covariance method .
机译：二氧化碳（CO_2）的测量在大气监测中具有重要作用。通常，执行两种类型的测量。第一个是基于气体浓度的测量，第二个是基于地球表面和大气之间的气体交换率的测量[1]。有几种方法可以测量气体浓度。然而，它们中的大多数需要昂贵的仪器或大型设备（即，气室）。为了精确地测量CO_2浓度或CO_2交换率，最好应使用传感器网络。这些传感器必须具有小尺寸，低功耗的特点，并且应该具有成本效益。因此，这对鲁棒的低功耗和低成本CO_2传感器提出了很高的要求。作为解决方案，我们提出了一种光子传感器，该传感器可以测量CO_2浓度，也可以通过使用涡度协方差方法来测量气体交换。

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