MKS Instruments，Inc。介绍了Newport 818-RAD光电二极管传感器with 8 mm aperture and cosine corrected diffuser for precise irradiance and dosage measurements. The 818-RAD enables more accurate measurements of LED light sources than standard photodiode sensors. It also offers calibration over a broad spectral range and is designed to replace traditional radiometers, which are only calibrated to a single wavelength.
其光谱范围为200 - 850 nm，辐照度测量范围为100 nw/cm2– 250 mW/cm2，Newport 818-RAD是真正的通用圆形几何辐照和剂量传感器。确保良好的余弦校正响应，将扩散器放在光电二极管的前面，以将定向光转换为兰伯特扩散的光，从而消除了对方向的任何敏感性。这允许精确测量高度分歧的光源，例如LED。
The calibrated photodiode sensor features a full spectrum response calibration, utilizing NIST-traceable standards with high-precision equipment maintained at the MKS Newport optical detector calibration facility. Each sensor is shipped with the calibration data electronically stored inside the detectors EPROM. A certificate of calibration and the calibration data are shipped with each detector.
The new Newport 818-RAD photodiode sensor is compatible with a wide range of Newport and Ophir power meters.
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