How to Measure?





Contact RadTech

Profiling Radiometers

A profiling radiometer, in addition to measuring joules and watts as does a radiometer, generates an irradiance profile which is a plot of the irradiance as a function of time. These are sometimes referred to as Mapping Radiometers.

"Mapping" or “Profiling” Radiometers are sampling radiometers with on-board memory. After a test exposure, the instrument provides the entire exposure profile. Instruments are currently available that provide this information on either a small LCD display on the instrument or transfer the information to a computer for viewing and analysis. Files transferred to a computer can be shared via email. Earlier models that are still supported provided the irradiance profiles on thermal paper.

Single-band and multiple-band instruments are available. Since these record the "history" of a pass under lamps, they can provide data on the irradiance profile of each lamp in rows of lamps. Relating the time scale to distance requires only the knowledge of the precise speed of the measurement.

View a chart of Multiple Lamps with Profiling Radiometers

Profiling radiometers offer the following advantages:

With Multiple Lamp Systems:

Users most often think of using Profiling Radiometers on UV systems with conveyors. This is a common use for profiling radiometers but their versatility also allows for their use on other applications. Use your imagination for your application.

Some examples of their use other than on conveyors:

Multi-Band Profiling Radiometers:

Multi-band profiling radiometers have all the advantages of the profiling radiometers that are described above. Instead of having just one spectral response, multi-band radiometers measure in multiple areas of the UV spectrum. Up to four spectral response areas (UVA, UVB, UVC, UVV-near visible) are available on current multi-band profiling radiometers. Comparing the four different response areas allows the user to easily and quickly identify different types of bulbs. In a large production line with many UV systems and different bulb types, this check can confirm that the proper bulb has been installed in the correct location on the line. view the chart Mercury to Mercury-Gallium Comparison UVA_UVV.