Ofil’s inspection equipment deploy their ability to visualize solar blind ultra violet (UV) signals to detect corona and arcing emitted on high voltage equipment.
Categorized as non destructive remote sensing testing equipment, Ofil imagers utilize the fact that ultra violet between 240-280nm is being absorbed by the Ozone so that signals detected on earth in this spectral range originate on earth.
Processes involved with corona phenomena emit ultra violet light. To detect these emissions in daylight special UV cameras were developed with blocking and transmitting (filtering) capabilities. Ofil’s cameras are called solar blind bi-spectral UV-Visible cameras since they incorporate both filtering and transmitting qualities.
While the conventional available UV sensors and filters are blinded by normal daylight and cannot provide the required levels of sunlight blocking, Ofil’s solar blind filters, based on the company’s intellectual property (IP), enable absolute detection of weak UV signals in full daylight with high signal-to-background ratio and only negligible background noise.