Articles: Materials
Articles: Photonics/Optics
Who's Who: Aerospace
On February 19, The Stratospheric Aerosol and Gas Experiment (SAGE) III instrument launched aboard a cargo capsule to the International Space Station....
Briefs: Sensors/Data Acquisition
A conventional Sun sensor determines the orientation of the Sun in two axes. If mounted on Earth in a known coordinate system, it can determine the azimuth and elevation of the Sun. When...
Application Briefs: Photonics/Optics
Color provides critical information that can improve the reliability of many machine vision inspection applications and make it possible to inspect many products that cannot be inspected...
Articles: Imaging
PCB manufacturing is a very competitive market, and manufacturers must be able to confidently ship accurate printed circuit board (PCB) products. Delivery of incorrect boards may...
Briefs: Physical Sciences
Preparation, Planning, and Concept Demo of a Technique to Find ≈7-to-10-m Near Earth Asteroids
A paper describes a new technique designed to increase significantly the sensitivity for finding and tracking small, dim, and fast-moving near Earth asteroids (NEAs). The technique relies on a combined use of a novel data processing approach and a...
Briefs: Physical Sciences
ISS Ammonia Leak Detection Through X-Ray Fluorescence
Ammonia leaks are a significant concern for the International Space Station (ISS). The ISS has external transport lines that direct liquid ammonia to radiator panels where the ammonia is cooled and then brought back to thermal control units. These transport lines and radiator panels are...
Briefs: Physical Sciences
A Tracking Sun Photometer Without Moving Parts
This innovation is small, lightweight, and consumes very little electricity as it measures the solar energy attenuated by gases and aerosol particles in the atmosphere. A Sun photometer is commonly used on the Earth’s surface, as well as on aircraft, to determine the solar energy attenuated by...
Briefs: Physical Sciences
Integrated Laser Characterization, Data Acquisition, and Command and Control Test System
Satellite-based laser technology has been developed for topographical measurements of the Earth and of other planets. Lasers for such missions must be highly efficient and stable over long periods in the temperature variations of orbit. In this innovation,...
Application Briefs: Sensors/Data Acquisition
Currently cruising through space at more than 10,000 mph, the Mars Science Laboratory (MSL) is scheduled to touch down on the red planet in August. The Mars Science Laboratory was...
Briefs: Physical Sciences
Computational Ghost Imaging for Remote Sensing
This work relates to the generic problem of remote active imaging; that is, a source illuminates a target of interest and a receiver collects the scattered light off the target to obtain an image. Conventional imaging systems consist of an imaging lens and a high-resolution detector array [e.g., a...
Briefs: Photonics/Optics
CCD Camera Lens Interface for Real-Time Theodolite Alignment
Theodolites are a common instrument in the testing, alignment, and building of various systems ranging from a single optical component to an entire instrument. They provide a precise way to measure horizontal and vertical angles. They can be used to align multiple objects in a desired...
Articles: Software
The Kepler mission Science Operations Center Science Pipeline Release 6.0 software system was named 2010 NASA Software of the Year by the NASA Software Advisory Panel. Designed, developed, and operated...
Articles: Sensors/Data Acquisition
e2v
Chelmsford, Essex, UK
+44 (0) 1245 493 493
www.e2v.com
Earlier this year, NASA’s MESSENGER became the first spacecraft to orbit the planet Mercury....
Articles: Photonics/Optics
Residual bulk image (RBI) is a phenomenon observed in certain types of front side-illuminated charge-coupled devices (CCDs). A CCD is an electronic light sensor used in digital cameras. In simplest terms,...
Application Briefs: Sensors/Data Acquisition
e2v Technologies
Elmsford, NY
914-593-6841
www.e2v.com
Briefs: Medical
A developmental instrument for assessment of radiation-induced damage in human lymphocytes includes an automated fluorescence microscope equipped with a one or more charge coupled...
Briefs: Physical Sciences
Stellar Gyroscope for Determining Attitude of a Spacecraft
A paper introduces the concept of a stellar gyroscope, currently at an early stage of development, for determining the attitude or spin axis, and spin rate of a spacecraft. Like star trackers, which are commercially available, a stellar gyroscope would capture and process images of stars...
Briefs: Physical Sciences
Progress has been made in continuing efforts to develop optical flight-control and navigation sensors for miniature robotic aircraft. The designs of these sensors are inspired by the...
Briefs: Electronics & Computers
A design concept for the receiver portion of a proposed free-space optical communication terminal calls for integration of its communication and pointing detectors. As explained...
Briefs: Photonics/Optics
The beamviewer is an optical device designed to be attached to a charge-coupled-device (CCD) image detector for measuring the spatial distribution of intensity of a beam of light (the...
Briefs: Photonics/Optics
An improved process that includes a high-temperature bonding subprocess has been developed to enable the fabrication of robust, flat, silicon-based charge-coupled devices (CCDs) for...
Articles: Photonics/Optics
No single image sensor will ever satisfy the diverse requirements of all industrial camera applications. The characteristics of higher resolution, faster speed, and a wide dynamic range are, however, increasingly...
Briefs: Photonics/Optics
Theodolite With CCD Camera for Safe Measurement of Laser-Beam Pointing
The simple addition of a charge-coupled-device (CCD) camera to a theodolite makes it safe to measure the pointing direction of a laser beam. The present state of the art requires this to be a custom addition because theodolites are manufactured without CCD cameras as standard...
Briefs: Photonics/Optics
Efforts are under way to develop back-surface-illuminated, thinned silicon charge-coupled devices (CCDs) with delta doping and integral optical filters to be used as image...
Briefs: Electronics & Computers
Innovative optoelectronic encoders for measuring absolute, linear or angular position with super-high resolution have been invented. The new encoders rely on a combination of high-accuracy...
Briefs: Photonics/Optics
High-Speed Image Detectors With Subelectron Noise Floors
Parallel ultra-low-noise hybrid detectors (PHUDs) are developmental image-detector devices for use in low-power, scientific-grade video cameras. The hybrid nature of a PHUD lies in the incorporation of both charge-coupled-device (CCD) image-detection circuitry and complementary metal...
Briefs: Electronics & Computers
Charge-coupled devices (CCDs) of a type developed previously for imaging in ultraviolet light have been found to be useful as detectors of electrons and other charged particles with kinetic...
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