High-power UV LED technology has been rapidly improved in recent years, which has led to the updating of many industries. In the UV curing industry, the original UV curing machine basically uses high pressure mercury lamp as the light source. The characteristics of high-pressure mercury lamp source are that 365 nm is the main peak of ultraviolet radiation, but there are many other sub-peaks. The ultraviolet wavelength of all high-pressure mercury lamp is multi-wavelength. Ultraviolet curing machine with high pressure mercury lamp as light source needs to measure the intensity of ultraviolet radiation in the UV curing furnace and the ultraviolet energy in the production process, so it needs a UV energy meter. At present, the brand UV energy meter
in the market is basically based on measuring the intensity and energy value of UV curing furnace with high pressure mercury lamp as light source.
With the rapid development of LED technology, the UV curing machine industry has undergone tremendous changes. As a light source, the UV curing machine of UV LED gradually occupies a dominant position in the market. But the UV energy meter has not kept up with the development of this technology. At present, the energy meter for measuring the UV curing furnace of LED light source still uses the instrument suitable for high pressure mercury lamp, and the measured data will certainly be quite inaccurate. What's the reason? The main reason is that the UV LED light source is a single wavelength light source, with 365 nm, 380 nm, 395 nm and other different wavelength models. The original UV energy meter, with high-pressure mercury lamp adjustment, measures the LED UV curing machine, the wavelength does not match. It would be quite inaccurate to use the measured data.
From the above review, we can understand that the current market of UV energy meters, can not meet the development needs of LED UV curing machine, let alone the various fake and inferior UV energy meters on the market, is completely unable to meet the requirements.
For the future of UV energy meter, there will be UV energy meter for LED UV curing machine. This energy meter chooses different measurement bands according to the wavelength of different UV LED light sources, so that the data can be accurate only when the measurement bands of the light source and the instrument are matched.
Unfortunately, there is no perfect national and international standard for measuring the light intensity of high-power UV LED at present, which leads to the lack of corresponding national standard for energy detection of LED UV curing machine. Therefore, for the measurement standard of UV LED light source intensity, it is also in urgent need of improvement.