High Temperature Sensor Based on Tapered Few Modes All-Solid Photonic Bandgap Fiber

Monitoring high-temperature sensor with optical performance in Terahertz Using graphene in power plant industries

“…Graphene is one of the most important substances especially in optical engineering over the last years. [3] Ease of use in various types of applications such as medical sensors (blood component and diseases), physical sensors (strain, pressure, temperature, humid), and chemical sensors (oil, gas) enable researchers to overcome the di culties of electrical and electronic sensors like large size, large weight, instability, power loss, leakage current, vulnerable to the hazardous environment and other problem [4,5] One of the most important sensors among all other sensing strategies is the optical ber sensor which has achieved a high impact in the last decades. These sensors offer several advantages over electronic sensors, additionally, optical ber sensors are light and small, resistant to harsh environments and high temperatures.…”

“…[13,14] A soft sensor was introduced to predict the oxygen content of the steam boiler ue gas in a gas-red boiler system [15]. In [16] a soft sensor measuring oxygen content in ue gases at an oil re nery using a Zirconia oxygen analyzer was offered and later in [4], the sensitivity of 4.7 pm/℃ was obtained by the tapered PCF (Photonic Crystal Fiber) in a range of T = 20℃ to T = 930℃. Four ber sensors were dropped into a heated furnace to simulate a step transient in temperature from room temperature to various nal temperatures of 700-1100 ℃ [17].…”