Applicazione e miglior produttore di sistemi distribuiti di misurazione della temperatura in fibra ottica

What are the advantages of using optical fibers for temperature measurement
Temperature is a very important physical quantity in engineering technology and scientific research, therefore temperature measurement technology has been continuously studied and developed. Traditional temperature measurement often uses temperature sensors such as thermistors and optical pyrometers. Tuttavia, for certain special industrial environments (come infiammabili ed esplosivi, alta tensione, corrente elevata, forti interferenze elettromagnetiche, ecc.), temperature sensors based on electrical signals are usually greatly limited in terms of safety and signal stability. Perciò, in order to achieve safe and effective temperature measurement in various situations, the development of new temperature measurement systems has become an inevitable trend. The advantages of optical fiber such as electrical insulation, geometric variability, and inherent large signal transmission bandwidth, as well as the development of grating sensors, have enabled optical fiber temperature sensors to break through the limitations of traditional temperature sensors and provide very effective means for temperature measurement in harsh environments such as strong electromagnetic interference. Allo stesso tempo, optical fiber temperature measurement systems can overcome the limitations of traditional point sensors and measure temperature field information distributed along the optical fiber.

Le caratteristiche di misurazione della temperatura distribuita in fibra ottica

After more than ten years of development, fibra ottica distribuita temperature measurement systems have been widely used in fields that require temperature measurement, allarme antincendio, and energy conservation and emission reduction, such as power cable tunnels, comprehensive pipe galleries, coal industry, e data center, due to their advantages of long measurement distance, alta precisione, nessun punto cieco nella misurazione, and strong resistance to electromagnetic interference. Based on Raman DTS (Sistema di misurazione della temperatura in fibra distribuita), temperature information is obtained by comparing the intensity of Stokes light and anti Stokes light.

The working principle of distributed fiber optic temperature measurement

The distributed fiber optic temperature measurement device is made using the spontaneous Raman scattering effect. Its anti Stokes signal is temperature sensitive, while the Stokes signal is temperature insensitive. The temperature values at each point along the fiber optic can be calculated using its ratio of light intensity, and precise positioning can be achieved using its Rayleigh scattering technology. Perciò, its spatial resolution and temperature measurement accuracy are important characterization parameters.

Negli ultimi anni, distributed fiber temperature sensing (DTS) sistemi basati sullo scattering Raman sono stati ampiamente studiati e sviluppati. Grazie alla sua resistenza alle interferenze elettromagnetiche e alla lunga distanza di misurazione, la misurazione distribuita della temperatura in fibra ottica è ampiamente utilizzata in molti campi industriali, come l'allarme antincendio, monitoraggio della sicurezza dei cavi, E rilevamento perdite di oleodotti.

IL sistema di misurazione della temperatura distribuito in fibra ottica può monitorare la temperatura dell'oggetto misurato in tempo reale. Non solo è in grado di rilevare il verificarsi di eventi di incendio in tempo reale, ma forniscono anche posizioni accurate dell'incendio, guadagnare tempo per intervenire immediatamente sugli incendi e ridurre al minimo le perdite dovute a incidenti. FJINNO’s distributed fiber optic temperature measurement system eliminates the safety hazards of traditional temperature monitoring systems and greatly improves the availability of monitoring systems for temperature monitoring of temperature objects. IL sistema di misurazione della temperatura distribuito in fibra ottica is widely used by many large construction and subway companies, greatly reducing the occurrence of various fire accidents. Inoltre, distributed fiber optic temperature measurement systems also have important and extensive application prospects in fields such as geothermal development and application, oil and gas extraction, and chemical production.

Sensore di temperatura a fibra ottica, Sistema di monitoraggio intelligente, Produttore di fibra ottica distribuito in Cina