February 1, 2009 NASA Tech Briefs - February 2009 - Vol. 33 No. 2 Here are links to this issue's Features, Tech Briefs, Products and more. You can download the complete issue, LOGIN TO DOWNLOAD Don't have an account? Sign up here. Subscribe to future issues. SUBSCRIBE Inside this issue Supplements Features Eye on Innovation An Innovative Approach to Shaker Testing Application Briefs Communications and Tracking Services Support Near-Earth Missions Measurement Systems Aid NASA in Study of Space Station Solar Array Anomaly Who's Who Glenn Rakow, SpaceWire Development Lead, Goddard Space Flight Center Articles Medical Design Advances Provide New Diagnostic and Treatment Options Tech Briefs Physical Sciences Measuring Low Concentrations of Liquid Water in Soil Compact Microwave Fourier Spectrum Analyzer Non-Contact Measurement of Density and Thickness Variation in Dielectric Materials The Mars Science Laboratory Touchdown Test Facility Grooved Fuel Rings for Nuclear Thermal Rocket Engines Pulsed Operation of an Ion Accelerator Manufacturing & Prototyping Composite Layer Manufacturing With Fewer Interruptions Improved Photoresist Coating for Making CNT Field Emitters Software Combinatorial Generation of Test Suites Autonomous Instrument Placement for Mars Exploration Rovers Mission and Assets Database Trajectory Calculator for Finite-Radius Cutter on a Lathe Materials A Simplified Diagnostic Method for Elastomer Bond Durability Very High Output Thermoelectric Devices Based on ITO Nanocomposites Complex Multifunctional Polymer/Carbon-Nanotube Composites Information Sciences Integrated System Health Management Development Toolkit TCP/IP Interface for the Satellite Orbit Analysis Program (SOAP) Mechanics & Machinery Ultrasonic/Sonic Anchor Reducing Unsteady Loads on a Piggyback Miniature Submarine Semiconductors & ICs InP Heterojunction Bipolar Transistor Amplifiers to 255 GHz Electronics & Computers In-Phase Power-Combined Frequency Tripler at 300 GHz Smaller But Fully Functional Backshell for Cable Connector Electronic System for Preventing Airport Runway Incursions Glove-Box or Desktop Virtual-Reality System Products Model RPM10 Photo/Contact Tachometer LED Optometer Corrective Lens Photonics Tech Briefs LOGIN TO DOWNLOAD Subscribe to future issues. SUBSCRIBE Applications Using Vision Sensors to Eliminate Manufacturing Defects Articles Specialty Fibers Guide Light When the Going Gets Tough Products Product of the Month: Infrared Camera Large Format MWIR Lens Light Measurement System Optical Fibers and Cables Laser Diode Video Microscope Sampling System Optical Transmittance Spectrometer Laser Beam Shaping Module Hydrogen Sulfide Gas Analyzer 4K Resolution Camera White LEDs Light Source Software Motion Control Technology LOGIN TO DOWNLOAD Subscribe to future issues. SUBSCRIBE Products Accelerometer Optical Encoder 24Vdc Gearmotor Ball Valve Hydraulic Power Pack Servo Motors Clean Room Motor Micro Manipulator Position Sensor Voice Coil Actuators Choke Coil Integrated Motor/Drive Rod Clamp Smart Motor Controller Nano Positioner Robotic Gripper Oxygen Flow Meter Servo Coupling Servo Motor Control Bearing Monitoring Module Motion Card AC Gearmotor Linear Drive System Applications Yaskawa Controllers Help Echo Hill Upgrade Grinding Operation Renishaw Encoder Improves Positional Accuracy for CNC Optical Maker Articles Magnetostrictive Sensing Ensures Accurate Level Monitoring Multi-turn Encoders Find Home in Industrial Applications Safely Stopping Motion Using Discrete Wiring View the discussion thread.