1. Hoe werkt glasvezeltemperatuursensortechnologie??
De glasvezeltemperatuursensortechnologie van FJINNO werkt volgens het principe van fluorescentieverval. Het systeem stuurt lichtpulsen via een optische vezel naar een fosforsensortip die op het meetpunt is geïnstalleerd. Het fosformateriaal absorbeert dit licht en zendt fluorescentie uit. Wanneer het bekrachtigingslicht is uitgeschakeld, de fluorescentie blijft uitzenden, maar vervalt geleidelijk.
Het belangrijkste wetenschappelijke principe is dat dit verval tijd heeft (fluorescentie levensduur) varieert precies met de temperatuur: hogere temperaturen resulteren in kortere vervaltijden. Door deze vervaltijd nauwkeurig te meten, ons systeem bepaalt de exacte temperatuur op de sensorlocatie. Dit meetprincipe is alleen afhankelijk van de tijdskarakteristiek, geen signaalintensiteit, waardoor het immuun is voor vezelbuiging, connectorverliezen, of lichtbronvariaties.
2. Wat maakt glasvezelsensoren immuun voor elektromagnetische interferentie?
FJINNO's glasvezel sensoren zijn volledig immuun voor elektromagnetische interferentie (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), ons glasvezel sensoren 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.
Voor gespecialiseerde toepassingen, 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 glasvezel temperatuursensoren offer industry-leading performance specifications:
- Nauwkeurigheid: ±1°C across the entire measurement range (higher accuracy options available for specialized applications)
- Oplossing: 0.1°C allowing detection of minute temperature changes
- Reactietijd: Minder dan 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, ons fiber optic sensors can detect temperature changes almost immediately, providing crucial early warning of developing issues.
Glasvezel temperatuursensor, Intelligent monitoringsysteem, Gedistribueerde glasvezelfabrikant in China
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