ویژگی های سیستم تشخیص حریق با سنسور دما فیبر براگ گریتینگ

The necessity of using fiber optic temperature measurement system in fire warning system

با توسعه مستمر شهرنشینی, کابل ها و تابلو برق فشار قوی در ساخت و ساز شبکه برق بیشتر و بیشتر می شود, و احتمال خطا نیز در حال افزایش است. According to fault statistics, it was found that the failure rate of cables and switches has been increasing year by year. علاوه بر این, بیشتر حوادث آتش سوزی ناشی از دمای بالا است. بنابراین, before a fire occurs, timely and accurate monitoring of temperature changes in cables and switchgear and issuing alarms allows users sufficient time to take corresponding measures, which is particularly important for avoiding accidents or causing fires. با این حال, the current main use is traditional temperature measurement systems, where the detection points of the sensor distribution are intermittent, و فقط نقاط در تماس با کاوشگر تشخیص قابل تشخیص است. محدوده تشخیص کوچک است, and the detection signal output is a weak electrical signal, که بسیار مستعد تداخل الکترومغناطیسی است; Using circuits as signal channels requires particularly high insulation requirements for high-voltage equipment, تعمیر و نگهداری را دشوار می کند. برای آزمایش جامع سیستم های دما مناسب نیست.

Fiber Bragg Grating Temperature Sensing Fire Detection System

Fiber optics have been widely used in automatic fire detection سیستم ها, especially in narrow spaces such as tunnels and comprehensive pipe galleries. با این حال, due to the continuous improvement of traditional inspection methods that only focus on the characteristics of easy construction and laying in space, and neglect the importance of temperature detection systems in monitoring, this has led to inconvenient monitoring, high maintenance costs, and even system paralysis due to long-term disrepair, posing a fire hazard to people’s lives. To address the aforementioned deficiencies in existing technologies, FJINNO has made significant breakthroughs in the structure of its fiber optic fire warning system products, effectively addressing the aforementioned issues.

1. Being able to accurately locate the exact location of temperature changes and achieve precise positioning, a precise fiber optic linear temperature detection system is formed, which integrates computer, fiber optic communication, حسگر فیبر نوری, fiber optic transmission, optoelectronic control and other technologies. Based on the temperature measurement principle of fiber optic backscatter with temperature changes, OFDR advanced technology is used to monitor the feedback information on the fiber optic in real time through temperature sensing optical cables, measure the temperature changes at various points on the fiber optic, and monitor the temperature status of the detected area in real time;

2. مناسب برای نظارت از راه دور, سیستم بسیار ساده و قابل اعتماد است, بدون تعمیر و نگهداری, and extremely convenient to install. بدون تأثیر بر نصب و گسترش تجهیزات جدید می توان آن را معلق و در یک خط مستقیم گذاشت;

3. عمر طولانی, intrinsic safety of optical fiber, بدون تداخل الکترومغناطیسی, قضاوت هوشمند جامع بدون هشدارهای کاذب, and it is not charged, suitable for special dangerous situations.

سنسور دمای فیبر نوری, سیستم مانیتورینگ هوشمند, تولید کننده فیبر نوری توزیع شده در چین