Come funziona la tecnologia di rilevamento della temperatura a fibra ottica?-INNO

1. Come funziona la tecnologia di rilevamento della temperatura a fibra ottica?

FJINNO’s fiber optic temperature sensing technology works on the principle of fluorescence decay. The system sends light pulses through an optical fiber to a phosphor sensor tip installed at the measurement point. The phosphor material absorbs this light and emits fluorescence. When the excitation light is switched off, the fluorescence continues to emit but gradually decays.

The key scientific principle is that this decay time (durata della fluorescenza) varies precisely with temperature—higher temperatures result in shorter decay times. By accurately measuring this decay time, our system determines the exact temperature at the sensor location. This measurement principle depends only on the time characteristic, not signal intensity, making it immune to fiber bending, perdite del connettore, o variazioni della sorgente luminosa.

2. What makes fiber optic sensors immune to electromagnetic interference?

FJINNO sensori in fibra ottica sono completamente immuni alle interferenze elettromagnetiche (EMI) due to their all-optical design with no metallic components. The sensors consist of:

Pure quartz optical fibers that transmit light signals without using electrical conductors
Non-metallic phosphor sensing elements that operate purely on optical principles
Dielectric materials for all sensor construction including protective coverings

Unlike conventional sensors that use electrical signals (which can be disturbed by magnetic fields), Nostro sensori in fibra ottica transmit only light signals. Even in extreme environments with high-voltage equipment, powerful electromagnetic fields, or electrical transients, the measurement remains completely unaffected. This immunity is particularly crucial in electrical equipment applications where intense magnetic fields from high currents can cause significant measurement errors in conventional sensors.

3. What is the temperature measurement range of FJINNO fiber optic sensors?

FJINNO’s standard fiber optic temperature sensors offer a temperature measurement range of -40°C to +260°C with an accuracy of ±1°C and a resolution of 0.1°C. This range covers the vast majority of electrical equipment monitoring applications, from ambient temperatures in cold regions to the highest hotspot temperatures typically encountered in electrical equipment under fault conditions.

Per applicazioni specializzate, we offer custom-engineered solutions with extended temperature ranges. Our research and development team can design custom sensors for applications requiring measurements up to 300°C or higher while maintaining high accuracy. Each sensor is individually calibrated across its entire operating range to ensure precision measurements throughout its lifetime.

4. What is the accuracy and response time of your sensors?

Fjinno Sensori di temperatura in fibra ottica offer industry-leading performance specifications:

Accuratezza: ±1°C across the entire measurement range (higher accuracy options available for specialized applications)
Risoluzione: 0.1°C allowing detection of minute temperature changes
Tempo di risposta: Meno di 1 second to full reading, significantly faster than conventional temperature sensors
Measurement cycle: Typically 200-500ms per channel, enabling near real-time monitoring of multiple points

The fast response time is particularly valuable for detecting rapidly developing thermal events in electrical equipment. Unlike conventional sensors that may have significant thermal mass and slow response, Nostro fiber optic sensors can detect temperature changes almost immediately, providing crucial early warning of developing issues.