该测温仪由光钎传感器和二次仪表两大部分组成。传感器采用了光钎耦合与传输的先进技术,用10m光钎作为耦合传输元件,将探头与光电元件分离。用压缩空气冷却光耦合器和光纤,并清洗光路,使探头能长期逼近被测铁水表面,光电元件离开测温现场,埋入地下,同时,大大地提高了抗干扰能力。测温仪信号处理与输出采用了模拟数字显示和单片机大屏幕显示装置,并配有记录仪,性能稳定可靠,漂移小,具有黑度系数补偿,峰值保持及峰值平均值,实现了仪表的智能化,为高炉炼铁计算机控制系统提供了先决条件。 该测量仪在承德钢铁厂炼铁厂2~#和3~#高炉安装运行了五个月。通过对铁水及炉渣温度测量的实践证明,仪表性能稳定可靠,测量准确,使用方便,能满足炼铁工艺生产要 The thermometer consists of two parts of optical fiber sensor and secondary instrument. The sensor uses the advanced technology of optical fiber coupling and transmission, with 10m optical fiber as the coupling transmission element, the probe and the photoelectric element separation. The compressed air is used to cool the optical coupler and the optical fiber, and the optical path is cleaned so that the probe can approach the surface of the tested hot metal for a long time. The photoelectric element leaves the temperature measuring site and buries into the ground. Meanwhile, the anti-interference ability is greatly improved. Thermometer signal processing and output using analog and digital display and single-chip large-screen display device, and with a recorder, stable and reliable performance, drift, with black coefficient compensation, peak hold and peak average, to achieve the instrument’s intelligence It provides the preconditions for blast furnace iron-making computer control system. The measuring instrument in Chengde Iron and Steel Plant Iron Works 2 ~ # and 3 ~ # blast furnace installed for five months. Through the practice of hot metal and slag temperature measurement proved that the instrument performance is stable and reliable, accurate measurement, easy to use, to meet the production process of ironmaking