Optical Sensors & Detector – UV Calibration
UV Calibration, Irradiance
Precision UV Calibration and Irradiance Measurement System for Accurate Ultraviolet Source Characterisation and Traceable Standards
The UV Calibration and Irradiance Measurement System is a precision-grade photometric solution designed for accurate quantification and calibration of UV radiation sources across UVA, UVB, and UVC spectral regions. Equipped with high-stability reference detectors, the system ensures traceable measurements aligned with NIST or PTB standards, supporting calibration of radiometers, UV lamps, LEDs, and exposure systems. It measures irradiance (mW/cm²) and total UV dose (mJ/cm²) with exceptional accuracy and repeatability. The system integrates temperature-stabilised SiC or GaP photodiodes, interchangeable optical filters, and advanced electronics for low-noise signal processing. Compact yet versatile, it is suitable for laboratory, industrial, and field calibration applications. Used in photonics, semiconductor, medical, and sterilisation industries, the UV Calibration System ensures compliance with international safety and performance standards for UV-based instruments and processes.
Understanding UV Calibration, Irradiance
The UV Calibration and Irradiance System provides absolute and relative calibration for UV measurement instruments by comparing test sensors against reference photodiodes traceable to international metrology standards. It accurately measures irradiance (power per unit area) and dose (energy per unit area) under controlled conditions, ensuring precise UV output characterisation. By using SiC or GaP detectors with calibrated spectral responsivity, the system covers UVA (315–400 nm), UVB (280–315 nm), and UVC (200–280 nm) ranges. Its integrated control software records real-time intensity, lamp stability, and calibration curves, ensuring repeatable and verifiable UV measurements in industrial, laboratory, and certification environments.
Technical Specifications
| Feature | Specification |
| Measurement Parameters |
Irradiance (mW/cm²), Dose (mJ/cm²)
|
| Spectral Range |
UVA (315–400 nm), UVB (280–315 nm), UVC (200–280 nm)
|
| Detector Type |
SiC or GaP Photodiodes (calibrated)
|
| Detector Active Area |
1 – 10 mm² (model-dependent)
|
| Calibration Reference |
Traceable to NIST / PTB Standards
|
| Accuracy | ±2–3% of reading |
| Measurement Range |
0.1 µW/cm² – 20 W/cm²
|
| Spectral Responsivity Tolerance |
< ±5% across bandwidth
|
| Optical Input |
Collimated or Fibre-Coupled Input
|
| Response Time | < 100 ms |
| Operating Temperature | 0 … +60 °C |
| Data Interface |
USB / RS-232 / Ethernet
|
| Power Supply |
5–12 V DC / USB powered
|
| Software Compatibility |
Windows / Linux / LabVIEW API
|
Key Features and Advantages
Traceable UV Calibration
The system is fully calibrated against NIST or PTB standards, ensuring traceable UV irradiance measurements for compliance and certification purposes.
Multi-Spectral Measurement
It supports UVA, UVB, and UVC detection through modular filters and reference-grade detectors, covering full industrial and scientific needs.
Precision and Stability
Temperature-compensated detectors and precision amplifiers guarantee high stability, minimal drift, and excellent signal linearity over long durations.
Fast and Accurate Response
With sub-100 ms response times, the system delivers real-time feedback for lamp or LED calibration and process control.
Interchangeable Detectors and Filters
Modular design allows switching between calibrated heads for different UV bands or intensity levels.
Software Integration and Data Logging
User-friendly software provides real-time irradiance display, dose integration, data recording, and export for validation reports.
Industrial Durability
Encased in rugged housing with optical shielding, the calibration setup withstands demanding laboratory and production environments.
By combining traceable calibration, broadband sensitivity, and precision electronics, the system guarantees accurate UV source validation across industries.
Applications Across Industries
UV Lamp and LED Calibration
Used for characterising output power and stability of UV LEDs, mercury lamps, and excimer light sources.
Radiometer and Sensor Calibration
Calibrates portable or inline radiometers used in curing, sterilisation, and semiconductor inspection systems.
Medical and Sterilisation Applications
Ensures accurate UV dose control in phototherapy, disinfection, and UVC sterilisation systems used in healthcare and pharmaceuticals.
Semiconductor and Electronics Industry
Supports photolithography, wafer processing, and surface treatment calibration where UV intensity precision is critical.
Research and Metrology Laboratories
Used as a reference setup for photonics research, UV material studies, and detector responsivity validation.
Environmental and Safety Monitoring
Verifies UV index sensors and environmental monitoring devices ensuring regulatory compliance and accurate reporting.
By offering traceable calibration, real-time measurement, and multi-spectral accuracy, this system sets the benchmark for UV source validation and irradiance standardisation.
Why Choose United Spectrum Instruments?
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Official distributor of precision UV calibration and measurement instruments in India
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Local stock ensures fast delivery and traceable certification options
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Competitive pricing for industrial, metrology, and research applications
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Expert consultation for UV calibration setup, integration, and compliance standards
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Nationwide after-sales service, technical training, and annual re-calibration support
FAQs
What does the system calibrate?
It calibrates UV lamps, LEDs, radiometers, and detectors for irradiance and dose accuracy.
Which UV regions are covered?
UVA (315–400 nm), UVB (280–315 nm), and UVC (200–280 nm).
Are the measurements traceable to standards?
Yes, all detectors are calibrated to NIST or PTB reference standards.
Can it measure both irradiance and total dose?
Yes, the system supports real-time irradiance and cumulative UV dose integration.
How does United Spectrum support Indian customers?
Through local stock, certified calibration assistance, expert training, and nationwide service support.
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Have Any Questions ?
FAQs
What does the system calibrate?
It calibrates UV lamps, LEDs, radiometers, and detectors for irradiance and dose accuracy.
Which UV regions are covered?
UVA (315–400 nm), UVB (280–315 nm), and UVC (200–280 nm).
Are the measurements traceable to standards?
Yes, all detectors are calibrated to NIST or PTB reference standards.
Can it measure both irradiance and total dose?
Yes, the system supports real-time irradiance and cumulative UV dose integration.
How does United Spectrum support Indian customers?
Through local stock, certified calibration assistance, expert training, and nationwide service support.
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