JTW-XCD-SF800 Distributed Fiber Optic Linear Temperature Sensor is a continuous distributed fiber optic temperature sensing system. It measures temperature variations along the fiber using Optical Time Domain Reflectometry (OTDR) technology and Raman scattering effect. In this system, the fiber optic cable serves as both the transmission medium and the sensor. Laser pulses propagate forward along the fiber, interacting with the fiber medium to generate extremely weak backward Raman scattered light (temperature-sensitive anti-Stokes light and temperature-insensitive Stokes light). After separation by a wavelength division multiplexer, the high-sensitivity photoelectric detector detects the light intensity ratio and return time of the backward scattered light signal, thereby obtaining real-time temperature distribution information.

Product Features

The JTW-XCD-SF800 features various alarm algorithms such as fixed temperature, differential temperature, and temperature rise, offering sound, light, image, and relay alarm modes. It also provides abundant standard interfaces for easy connection with fire alarm controllers and other fire protection equipment, ensuring good compatibility and expandability.

Applicable Scenarios

The Distributed Fiber Optic Temperature Sensing System, as an advanced linear fire detector both domestically and internationally, boasts long measurement distance, no measurement blind spots, and real-time measurement capabilities. It is widely used in fields such as power, traffic tunnels, subways, petrochemicals, and dams.