| 摘要 |
The invention relates to an ultra-violet radiation detector comprising a device for decomposing light into spectrum and a semiconductor detector set up in the path of the ultra-violet light beam behind the spectrum decomposing device, wherein the device decomposing the light into spectrum is a diffraction grating (2, 2'), behind which a detector (3) of the surface width of two or more refraction orders of the decomposed light beams and with a partly uncovered surface, uncovered on places adequate to the distance of refraction orders, is set up in the path of the light. The diffraction grating (2) is a translucent holographic picture, behind which a detector (3) with a surface of the same dimension as the surface of the diffraction grating (2) is set up, or the diffraction grating (2) is a light-reflecting holographic picture, above which, parallel with it and shifted in the direction of the incoming light is located the photosensitive detector (3) with a partly uncovered surface. Preferably the UV radiation detector has an incidence angle indicator for indication of the direction of the incoming light in relation to the diffraction grating (2). The invention further relates to a measuring equipment in which said UV radiation detector is applied, said detector being connected to an evaluating electronic device. The output of the photosensitive detector (3) is connected via analogue amplifier (4) to an analogue-digital converter (5), and an LCD display (6) is connected to the output of the analogue-digital converter (5). Preferably a comparator and an integrating circuit are also connected to the output of the analogue-digital converter (5) and the measuring equipment is materialised as an integrated circuit furnished with UV permeable window, which is built in a wrist watch. |
