Optical Sensors & Detector – UV Sensors
Radiometric UV Sensor – UV Cosine
UV Cosine – High-Precision Radiometric UV Sensor with Cosine Correction for Accurate Irradiance Measurement
The UV Cosine from SGLUX GmbH is a high-precision radiometric UV sensor designed for accurate irradiance measurement of UV radiation across industrial, scientific, and environmental applications.
Its defining feature is the cosine-corrected diffuser, which ensures accurate angular response according to the cosine law of irradiance, making it ideal for applications requiring precise directional light measurement.
Equipped with a solar-blind Silicon Carbide (SiC) or Gallium Nitride (GaN) detector, the UV Cosine measures specific UV spectral bands (UVC, UVB, UVA) with excellent selectivity and stability.
The sensor delivers a 0–5 V linear analog output, compatible with standard controllers, PLCs, and data acquisition systems.
Factory-calibrated and traceable to NIST / PTB standards, the UV Cosine guarantees reliable, reproducible results in UV curing, solar simulation, photobiology, and environmental radiometry.
Understanding Radiometric UV Sensor - UV Cosine
The UV Cosine measures the radiometric irradiance of ultraviolet radiation while compensating for variations in the angle of incident light.
Its cosine diffuser ensures uniform sensitivity regardless of beam direction, enabling accurate readings under natural sunlight, artificial UV sources, or LED arrays.
The SiC or GaN photodiode provides solar-blind performance, rejecting visible and infrared interference.
Compact, robust, and factory-calibrated, the UV Cosine is a trusted reference sensor for scientific research, calibration labs, and industrial process control, where angular accuracy and spectral precision are essential for UV exposure validation and performance monitoring.
Technical Specifications
| Feature | Specification |
|---|---|
| Function | Radiometric UV sensor with cosine correction for angular irradiance measurement |
| Detector Type | Silicon Carbide (SiC) or Gallium Nitride (GaN) solar-blind photodiode |
| Spectral Range | 200 – 400 nm (model dependent: UVA, UVB, UVC) |
| Peak Wavelength | 254 nm (UVC) / 310 nm (UVB) / 365 nm (UVA) |
| Cosine Correction | Integrated PTFE diffuser (compliant with cosine response law) |
| Output Signal | 0 – 5 V DC (linear with irradiance) |
| Accuracy | ±5 % of reading |
| Response Time | < 1 s |
| Visible / IR Rejection | > 10¹⁰ (solar blind) |
| Operating Voltage | 5 – 24 V DC |
| Operating Temperature | −20 … +85 °C |
| Housing Material | Anodised aluminium or stainless steel, IP65 / IP67 |
| Optical Window | UV-grade quartz / PTFE diffuser |
| Connector | M8 / BNC / custom cable output |
| Calibration | Factory-calibrated, traceable to NIST / PTB |
| Compatibility | SENSOR MONITOR 5.0 / VOLTCON / SGCD4 systems |
| Applications | UV curing, solar simulation, photobiology, environmental UV monitoring, and calibration setups |
Key Features and Advantages
Cosine-Corrected Accuracy
The UV Cosine uses an integrated diffuser element that ensures accurate angular response according to the cosine law, providing true irradiance values even under oblique light incidence.
Spectral Flexibility
Available in UVA, UVB, and UVC variants, it covers a wide range of UV measurement applications, from solar monitoring to sterilisation process validation.
Solar-Blind Performance
The SiC / GaN detector guarantees high UV selectivity, eliminating interference from visible and infrared light sources.
Traceable Calibration
Each sensor is factory-calibrated to NIST / PTB standards, ensuring consistent and reliable radiometric results for regulated or scientific use.
Rugged Design and Environmental Protection
The IP65/IP67-rated aluminium or stainless-steel housing offers protection against humidity, dust, and outdoor exposure.
Plug-and-Play Integration
Outputs a 0–5 V DC linear signal, easily compatible with industrial control systems and data loggers.
Fast, Stable Response
Provides sub-second response time and long-term output stability, essential for continuous process monitoring.
The UV Cosine offers unmatched angular precision, spectral selectivity, and calibration reliability, making it indispensable for applications that demand true irradiance measurements under variable light conditions.
Applications Across Industries
Environmental and Solar Radiation Monitoring
Measures ambient UV irradiance and supports research in atmospheric UV exposure, climate studies, and photobiology.
Industrial UV Curing and Printing
Ensures accurate UV dose control in printing, coating, and adhesive curing processes.
Scientific and Photobiological Research
Used in laboratories and universities for UV exposure validation in biological, optical, and chemical experiments.
Calibration and Reference Measurement Systems
Acts as a standard reference detector in calibration laboratories and metrology setups.
Semiconductor and Optical Manufacturing
Monitors UV intensity during photoresist processing and wafer cleaning operations.
Solar Simulation and Material Testing
Validates UV exposure in accelerated aging tests for polymers, coatings, and photovoltaic materials.
The UV Cosine delivers traceable, cosine-corrected UV irradiance data, making it essential for precise UV measurement and calibration across environmental, industrial, and scientific applications.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX UV Cosine sensors in India
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Expertise in UV measurement, calibration, and environmental monitoring systems
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Local calibration traceable to NIST / PTB standards
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Competitive solutions for research, OEM, and industrial sectors
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Pan-India technical assistance, installation, and after-sales support
FAQs
What makes the UV Cosine different from other UV sensors?
It features cosine correction, ensuring accurate irradiance readings independent of the light’s angle of incidence.
Which UV bands can it measure?
It’s available in UVA, UVB, and UVC variants.
Is it suitable for outdoor monitoring?
Yes – its IP65/IP67-rated housing allows reliable outdoor and environmental measurements.
Is it calibrated?
Yes – every sensor is factory-calibrated and traceable to NIST/PTB standards.
How does United Spectrum support Indian users?
Through integration, calibration, and nationwide service for UV measurement and monitoring systems.
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FAQs
What makes the UV Cosine different from other UV sensors?
It features cosine correction, ensuring accurate irradiance readings independent of the light’s angle of incidence.
Which UV bands can it measure?
It’s available in UVA, UVB, and UVC variants.
Is it suitable for outdoor monitoring?
Yes – its IP65/IP67-rated housing allows reliable outdoor and environmental measurements.
Is it calibrated?
Yes – every sensor is factory-calibrated and traceable to NIST/PTB standards.
How does United Spectrum support Indian users?
Through integration, calibration, and nationwide service for UV measurement and monitoring systems.
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