UV curing sensor XT for high irradiance and process temperatures
The UV curing sensors XT measure irradiance and dose directly in the UV curing process – up to 50,000 mW/cm² and at operating temperatures of up to 150 °C. This is made possible by separating light collection from evaluation: the sensor head guides the light through a light guide into the calibrated sensor electronics in the handpiece. Four designs cover spot bonding as well as measurements in places that are difficult to access.
For adhesive bonding and curing through UV radiation, LED spotlights and gas discharge lamps with liquid light guides, whose high irradiance enables curing and polymerization within seconds, are used.
Exact measurements for monitoring the irradiance and dose are required for process control. Here, the UV sensor is exposed to the high irradiances and temperatures, which could lead to an impairment of the measurement results. The sensor series XT („eXtrem Temperature“) has been developed for this critical application. The XT sensors are compact and thus flexibly usable where needed.
The XT sensor has an excellent cosine correction, and the calibrated sensor electronics are integrated in the handpiece. That way, just like with all our high-quality radiometers, several sensors can be connected to one hand-held meter.
For your application you can select between four sensor types. The XTR guides the light through a stainless steel rod into the handpiece and is quick and easy to use. Due to the distance between the sensor head and the handpiece, the user is protected from the radiation!
In the XTF, the sensor head is connected with the flexible light guide in order to enable measurements in places that are difficult to access. Both sensors have a height of 10 mm without any impairment of the measuring precision.
The diameter of the XTR and XTF sensors is 40 mm. By the way, sensor and handpiece are flat so that even here the measurement is optimal and reproducible. XTR and XTF are thus the first choice for UV spot bonding.
The XT sensors can be connected to the RMD Pro radiometer for irradiance and dose measurements. The RMD Pro features a high resolution, a large measuring range, data storage on an internal memory of 8 GB, a data interface and the illuminated graphic display.
Calibration
For precise measurements, we calibrate the sensors to the process light source or the used LED wavelength. For this, more than 20 radiation sources are available in our accredited laboratory. Of course, all our sensors are factory-calibrated, long-term stable and precise upon delivery. Optionally we deliver the XT sensors with a DAkkS calibration.
View the XT sensors as a 3D model
Look at both designs from every side, rotate and zoom – directly in your browser.
The XTF and XTR UV curing sensors can be viewed from all sides in the 3D product viewer – true to the original, generated from the CAD design data. Comparing both designs directly makes it easier to choose the right one for the installation situation.
