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MKS Instruments Announces Ophir® PD300RM-UVA, Irradiance and Dosage Sensor

MKS Instruments, Inc. (NASDAQ: MKSI), a global provider of technologies that enable advanced processes and improve productivity, has announced the Ophir® PD300RM-UVA Irradiance and Dosage Sensor.

Image Credit: MKS Instruments

Calibrated over the UVA and violet spectral range (350-450 nm), the sensor provides a flat spectral response that is forgiving of inexact wavelengths, wide bandwidths, and wavelength shifts (e.g. due to heating). This allows for measuring both narrowband (lasers) and broadband sources, such as LEDs, without the need to know the exact wavelength. The sensor also supports measuring sources at different wavelengths simultaneously. It is designed to analyze light sources, including for UV curing and drying of polymers, paints, and other UV responsive materials that are used in industrial applications, such as semiconductor processing and additive manufacturing.                                                

"UV LEDs are being put to work in a variety of industrial processes and medical applications, but accurate measurement in the UV range faces challenges, such as not knowing the precise bandwidth of the light, uneven illumination, steep angles, and wavelength shifts due to heating," said Reuven Silverman, General Manager Ophir Photonics. "The PD300RM-UVA sensor, with its small form factor, UV-resistant design, and NIST-traceable calibration over the UVA and violet spectrum, generates accurate and reproducible irradiance and dosage measurements that are in high demand in the industrial and medical applications that rely on UVA LEDs. When used in conjunction with Ophir meters, the sensor can be employed in early R&D projects, used for calibration and maintenance at customer sites, or incorporated into fully-operational machines."

Traditional radiometers are calibrated to a single wavelength (e.g. 365nm). The Ophir PD300RM-UVA sensor employs a high-quality UV-enhanced silicon photodiode design that is calibrated over a broad spectral range (350-450nm) and delivers superb linearity and sensitivity. The sensor features a small 2.75mm aperture for more precise mapping of irradiance at different positions and a cosine-corrected diffuser for eliminating angle sensitivity. Its irradiance measurement range is 1.5 μW/cm² – 15 W/cm².

The Ophir PD300RM-UVA sensor, like all Ophir sensors, features a "Smart Connector" interface that operates with the company's StarBright and StarLite smart displays, and Juno+ compact USB PC interface. Users can choose between a variety of data display formats, including Digital with Bargraph, Line Plot, Pulse Chart, and Real-Time Statistics. The displays also feature sophisticated logging of power and energy, statistics, histograms, and more, as well as advanced math functions. The display is automatically configured and calibrated when plugged into one of the company's laser measurement heads.

Availability

The Ophir PD300RM-UVA irradiance and dosage sensor is available now.

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