二、原理及结构产品特点

全自动跟踪太阳辐射仪主要由光筒和自动跟踪装置组成。光筒内部是由七个光栏、内筒、热电堆及干燥剂筒等组成。七个光栏是用来减小内部反射、构成仪器的开敞角并且限制仪器内部空气的湍流。在光栏的外面是内筒，它使光栏内部和外筒的干燥空气密闭，以减小环境温度对热电堆的影响。在外筒口装有JGS3石英玻璃片，它可透过0.27—3.2µm波长的辐射光，便于太阳直辐射测量。筒内装有干燥剂，以防止水汽凝结物生成。

直接辐射表的感应部件是光筒的核心部分，它是由响应快速的线绕电镀式热电堆组成。感应部件对着太阳一面涂有无光黑漆，下面是热电堆的热接点，当有阳光照射到热接点时，温度升高，它与另一面的冷接点形成温差，从而产生电动势，该电动势与太阳直接辐射强度成正比。

三、技术参数

测量范围：0～2000 W/m2

信号输出：0～20mV

测量精度：工作表＜5%；标准表＜2%

灵敏度：7～14μV∕W.m-2

时间常数：≤15S(99%)

内阻：约80欧姆

跟踪精度：＜168h±1°

供电：DC 12V

输出：0-5V

年稳定性：±1%(灵敏度变化率)

工作环境：-45℃～+45℃

仪器线长：2.5米

敞开角：4°

产品重量：5Kg

产品功耗：50 mW

计算公式：电压型(0~2.5V)，F=V/2.5×2000（F：辐射值，单位W/m2，V：输出电压，单位V，辐射测试量程0~2000W/m2）

四、公司介绍

　　山东风途物联网科技有限公司成立于2017年，注册资金300万元，公司总位于山东省潍坊市高新区光电路155号潍坊高新区光电产业加速器（一期）1号楼209，公司以气象环境监测、食品快检、土壤养分检测等农业应用仪器的研发、生产、销售、服务为目的，公司具有完整的生产链、实力雄厚的技术团队和凝聚力强的营销团队，自主研发生产的气象环境监测系统已广泛应用到气象监测、城市环境监测、风力发电、航海船舶、航空机场、桥梁隧道等域，客户遍布国内各地，并取得了良好的社会效益和经济效益。山东风途物联网科技有限公司作为一家ISO9001认证企业，始终坚持以市场为导向，以质量为根本的原则，秉承匠心精神，严谨、用心、坚持的态度，风途物联网志在用心做仪器，为客户提供有价值的思想和方案作为企业的理念，经过多年的技术沉淀积累与不断创新，客户涵盖国内的气象、矿业、农业、林业、水利水电、畜牧、植物保护等域，并获得广大用户一致好评。

Shandong Fengtu Internet of Things Technology Co., Ltd. was established in 2017 with a registered capital of 3 million yuan. The company is headquartered in 209, Building 1, Weifang High-tech Zone Optoelectronics Industry Accelerator (Phase I), No. 155, Optical Circuit, High-tech Zone, Weifang City, Shandong Province. The company has a complete production chain, a strong technical team ａnd a cohesive marketing team for the purpose of research ａnd development, production, sales ａnd service of agricultural application instruments such as environmental monitoring, food rapid inspection, ａnd soil nutrient testing. The monitoring system has been widely used in meteorological monitoring, urban environmental monitoring, wind power generation, marine ships, airports, bridges ａnd tunnels, etc., with customers all over the country, ａnd achieved good social ａnd economic benefits. Shandong Fengtu Internet of Things Technology Co., Ltd., as an ISO9001 certified enterprise, always adheres to the principle of market-oriented, quality-based, adhering to the spirit of ingenuity, rigor, dedication ａnd persistence, Fengtu Internet of Things aims to make instruments with heart, Providing customers with valuable ideas ａnd solutions is the concept of the company. After years of accumulation ａnd continuous innovation in technology, customers cover domestic meteorology, mining, agriculture, forestry, water conservancy ａnd hydropower, animal husbandry, plant protection ａnd other fields, ａnd have won the majority of users. Unanimously praised.