Features

NASA, UCF Professor Send Sensor to Stratosphere

Planetary Atmospheres Minor Species Sensor (PAMSS) University of Central Florida Orlando, FL www.ucf.edu Using a high-altitude balloon, NASA and a team led by University of Central Florida physics professor Robert Peale sent an experimental sensor about 20 miles above the Earth. The flight demonstrated the sensor’s ability to function in the perilous conditions found in the stratosphere, where the temperature can plummet to -75 degrees Fahrenheit.

Posted in: Application Briefs, Sensors

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Glaucoma Sensor Monitors Eye Continuously

More than three million Americans are currently living with glaucoma, an eye disorder with few symptoms in its early stages. Globally, the number may increase to almost 80 million by 2020, according to the British Journal of Ophthalmology. Glaucoma eventually leads to damage of the optic nerve.

Posted in: Articles, Sensors

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New Control Possibilities for Wireless Switches

Wireless controls have been widely accepted and embraced in the industrial community. Widespread use of monitoring devices in the process industry, the deployment of RFID components in a variety of industry segments, and the demonstrated performance of a large, installed base of the technologies serve as evidence of their viability.

Posted in: Articles, Sensors

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The Strain Gauge Gets an Upgrade

The strain gauge, a device commonly used in the aerospace industry to detect stress and deformation, has its limitations. The three copper wires of the strain gauge often lead to labor-intensive efforts; a large, complicated structure requiring 100 strain measurements, for example, means 300 lead wires. As the implementation becomes more complex, the wire bundle itself gets bigger and heavier. Strain gauges are also susceptible to electronic magnetic interference, and the sensors must be spaced out at distant intervals.

Posted in: Articles, Sensors

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Samarium Oxide Glaze

Developed for high-energy pulsed Q-switching infrared laser applications, a new, high-absorption samarium oxide glaze from Morgan Advanced Materials (Windsor, UK) means it is now able to offer three grades of glaze for laser systems. The samarium glaze absorbs radiation at the Nd-YAG lasing wavelength of 1064nm, and its further transitions near 940nm, 1120nm, 1320nm and 1440nm. A significant amount of fluorescent radiation at the lasing wavelength escapes laterally from the laser rod into the surrounding pumping cavity. Absorbing this radiation prevents it from being reflected back into the laser rod, which would in turn stimulate decay from the upper laser transition level, thereby limiting the number of excited ions which can occupy that level.

Posted in: Products, Photonics

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sCMOS Cameras

With the addition of two new models, PCO (Kelheim, Germany) now provides eight sCMOS-cameras. The new pco.edge 3.1 and pco.edge 4.2LT are now the company’s entry-level cameras. pco.edge 3.1’s features include: 2048 x 1536 pixels resolution; 50 frames per second; 1.1e- med readout noise; 27000 : 1 dynamic range; >60% quantum efficiency; global and rolling shutter readout; and small form factor. pco.edge 4.2LT’s features include: 2048 x 2048 pixels resolution; 40 frames per second; 0.8e- med readout noise; 36000 : 1 dynamic range; >70% quantum efficiency; and a small form factor.

Posted in: Products, Photonics

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Deep UV Luminescence Spectrophotometer

McPherson (Chelmsford, MA) has announced a new vacuum ultraviolet universal spectrophotometer, an optical test system optimized for emitting samples like phosphors or photo- and electro-luminescent crystals. It can measure reflectance, transmission and fluorescence emission over its complete working range, 120 nanometers to 2.2 microns. The sample chamber includes high efficiency toroidal optics for focused excitation and sensitive detection. It can operate purged or under vacuum and can interface to commercial cryogenic and heated sample mounts.

Posted in: Products, Photonics

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