Topic: Hydrogen flame detection | UVTRON™ Flame/discharge sensors

UVTRON is a sensor sensitive only to UV light with wavelengths of 185 nm to 260 nm (*1).

Featuring high sensitivity and quick response, UVTRON is ideal for detecting flame and electrical discharge.

 

*1: For nickel (Ni) electrodes

Hydrogen is attracting attention around the world as a next-generation energy source for a decarbonized society with the goals of zero emissions and carbon neutrality.

Ensuring safety when producing, transporting, storing, and utilizing hydrogen requires the monitoring of hydrogen flames.

However, hydrogen flames are nearly invisible and conventional methods that rely on infrared sensors and flame rods lack the high sensitivity needed to detect them. This has led to a demand for high-performance sensors suitable for monitoring hydrogen flames.

Production

Petroleum, natural gas, and other chemical fuels

By-products from steel mills, chemical plants, etc.

Natural energy

Biomass industry

Transportation and storage

Tanker trucks

Tanker ships

Pipelines

Storage tanks

Utilization

Fuel cell vehicles

Hydrogen fuel stations

Hydrogen boilers

Hydrogen power generation

Features

Hamamatsu Photonics offers UVTRON flame/discharge sensors that are highly sensitive to the weak UV light emitted from hydrogen flames and ensure quick and accurate flame detection.

Spectral distribution (our measured values)

NOTE: Relative intensity is normalized to the peak intensity of the sunlight spectrum, which is defined as 100 %.

High sensitivity and long-range detection

UVTRON accurately detects the weak UV light emitted from hydrogen flames. It can detect flames from a hydrogen burner about 10 m away. This long-range detection allows greater flexibility for UVTRON installation locations.

Range characteristics (Typ.)

Solar blind characteristics

UVTRON has a spectral response range of 185 nm to 260 nm, making it sensitive to UV light from hydrogen flames but insensitive to UV light from the sun. Therefore, it can accurately detect UV light from hydrogen flames while disregarding sunlight without the need for an optical visible-light cut filter.

Spectral distribution (our measured values)

Quick response

UVTRON quickly senses UV light within a few ms to detect a hydrogen flame as soon as it ignites. It also instantaneously detects when a hydrogen flame fizzles out, which is nearly impossible with indirect detection and other methods utilizing thermal sensing. UVTRON therefore provides a quick response ensuring a high level of safety management.

Compact and lightweight

The compact and lightweight features enable freedom of design, contributing to smaller devices and higher performance.

Demonstration video

You can see how UVTRON detects hydrogen flames that are difficult to view with the naked eye.

Compatible products

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