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measurement White Papers
Surface Characterization of Tribological Coatings: Wear Properties, Thickness and Roughness
With the S mart 3D profilometer, it is possible to more precisely measure the volume loss of the wear tracks after the friction and wear tests, since it measures the real shape of the wear track. There are many parameters that are important to study the tribomechanical properties of a surface or a coating such as nano-hardness, adhesion between the coating and the substrate, roughness, thickness of the layers or wear properties. Sensofar’s optical profiler can assess all these properties, as...
Measuring and Correcting MicroLED Display Uniformity
MicroLEDs unlock next-level display performance, but inherent variability between LEDs can result in visual quality issues that impede production volumes needed for commercialization. Imaging systems have been proven for microLED test and...
Defining and Describing Surface Error
Controlling optical component performance requires well-defined measurement processes. Analysis software can help by guiding users through the steps of the measurement process (geometry fitting, filtering, and defining parameters) and by making it...
Performing Differential Noise Figure Measurements
In recent years, numerous improvements have been made in noise figure measurements through better algorithmic understanding of the measurements, more sensitive receivers, and less error-prone methods of processing noise power measurements. Anritsu...
Electrical-to-Optical and Optical-to-Electrical Converter Measurements
As fiber and free-space optical communication bandwidths increase, the need for very high speed optical modulators and detectors has also increased. The frequency response characterization of these electrical-to-optical (E/O, modulators sometimes...
Gas Purging Keeps UV Spectrophotometers Healthy
Measuring in the far-UV (FUV) 120-220 nm presents unique challenges. The high energy that makes UV light interesting can cause photochemical formation of organic films on optical surfaces. These films cause increasing, wavelength-dependent loss of...
Noncircular in Perfection - Production Accompanying Measurement of an Asphere
Independent of the application, whether in satellite optics, video lenses or endoscopes - aspheres have already become indispensable in a wide range of highly versatile technical fields of application. Regardless of the system’s size, they all have...
Lateral-Effect Photodiodes
As the number of applications requiring mechanical alignment increases, the demand for new types of position-sensing detectors, specifically Lateral-effect PSDs is on the rise. These position sensors feature state of the art lateral technology to...
When Smart Sensors Require Smart Sources
RGB sensors are calibrated to predict the indoor or outdoor ambient lighting conditions and are used to make appropriate corrections and trigger functions like auto adjusting display brightness. To do this effectively requires a smart calibration...
Optical Power Meter
An optical power meter measures the photon energy in the form of current or voltage from an optical detector. Newport’s 1936/2936-R Series Optical Power Meters are among the most versatile power meters in the market, and the electronics adapt to a...
Infrared Camera Accuracy and Uncertainty in Plain Language
How accurate are thermal imaging cameras, and how are they calibrated? Understanding infrared camera accuracy and sensitivity can help clarify the value of well-calibrated thermal imaging cameras. In this paper, we use layman’s terms to explain how...
(11 results found)
April 2024
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