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Ultraviolet


Measure ultraviolet radiation


The SU-100 is a photodiode- based UV sensor sensitive to radiation from approximately 250-400 nm (see figure 1). This spans the UV-A, UV-B and UV-C wavelength ranges and provides a measurement of total UV radiation. The calibration is NIST- traceable.


The SU-100 cannot be used to selectively measure the different UV radiation bands because the photodiode is not equally sensitive to all UV wavelengths; it is calibrated to measure total UV radiation.


Figure 1 Full Sunlight (170 µmol m-2 s-1 )


Applications include:


• instantaneous and daily total UV radiation dosage monitoring in biological studies


• determining the UV filtering capacity of transparent plastic and glass barriers


UV Radiation


= sensor output * conversion factor = 26 mV * 5 = 170 µmol m-2


Example Conversion Factor: 5


s-1


Sensor Output (26 mV)


Conversion from mv signal to µmol m-2 12


s-1


.


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