Introduction to Fluorescent Fiber Optic Sensing Probe
The fiber optic probe consists of three parts: ST connector, fiber optic cable, and end temperature sensing end. The ST connector is the connection part with the optoelectronic module; Fiber optic cable is the transmission part, with quartz fiber inside. The quartz fiber has a coating and cladding on the outside, and a PTFE protective sleeve on the outermost part; The temperature sensing end contains temperature sensing rare earth materials, which are used to generate optical signals containing temperature information; The overall temperature resistance of the optical fiber is 200 ℃, with an outer diameter of 3mm. The long-term bending radius is 13.2cm. The short-term bending radius is 4.4cm. When the distance between the optical fiber lead and the ground is 0.4m, it can withstand a power frequency voltage of 100KV for 5 minutes.
Fluorescent fiber optic temperature sensing probes have many advantages that other temperature sensing probes cannot compare with, such as good electrical insulation, resistance to electromagnetic interference, resistance to chemical corrosion, and no pollution. This makes fluorescent sensing probes widely used not only in many fields such as biology and medicine, but also in the power industry. They are mainly used for temperature measurement of high-voltage instruments in electrical equipment, temperature measurement between generator diagnostic systems and transformer windings, temperature measurement of high-voltage circuit breaker contacts, and temperature measurement of high-voltage cable joints.
