Application Briefs

Position Sensors Help Cameras Focus on Mars

Hall Effect position sensors Micropac Industries Garland, TX 972-272-3571 www.micropac.com Micropac’s hermetic Hall Effect devices are being used by Alliance Spacesystems, LLC and Malin Space Science Systems in camera mechanisms on the Mars Science Laboratory (MSL) Rover. Malin Space Science Systems’ Mast Camera (MastCam) and the Mars Hand-Lens Imager (MAHLI) will use focus, filter wheel, and cover mechanisms produced by Alliance Spacesystems. The Hall Effect position sensors are used in the focusing mechanisms on both cameras.

Posted in: Application Briefs

Read More >>

Devices Execute Critical Separations for Phoenix Lander

Hi-Shear separation devices Hi-Shear Technology Corp. Torrance, CA 310-326-8110 www.hi-shear.com Hi-Shear separation nuts and pressure cartridges recently were used on the Phoenix Mars lander after being exposed to the cold temperatures and harsh environments of space for nine-and-a-half months. The Phoenix lander landed on Mars on May 25, 2008, and the Hi-Shear devices executed the Critical Cruise Stage Separation, Backshell Separation, and Heatshield Separation for a successful landing and operation on the surface of Mars. The spacecraft targeted the circumpolar region using a robotic arm to dig through the protective top soil layer to the water ice below, and to ultimately bring both soil and water ice to the lander platform for analysis.

Posted in: Application Briefs

Read More >>

Tactile Feedback for Touch-input Devices

As products become more featurerich, manufacturers are looking at ways to improve the human-computer interface (HCI). Touchscreens, with intuitive operation and software flexibility, and screen-printed touch surfaces, with refined aesthetics and better sealing, have become extremely popular. But what these touch-input devices do not supply is tactile confirmation of (1) a button’s location and (2) pressing it. The loss of this tactile information can be detrimental to user engagement and understanding, productivity, completion of transactions, safety, and satisfaction. In some applications, the lack of tactile feedback has been enough of a problem to prevent the conversion from mechanical switches to digital controls. The solution is simple — add tactile feedback to secure the best features of touch-input devices.

Posted in: Application Briefs, Applications, ptb catchall, Photonics

Read More >>

Seven Practical Steps for Designing Networking Enclosures

The design of enclosures to house networking servers and components should be guided by one overriding concern — heat. Servers, in particular, generate a great deal of heat, so an enclosure must be capable of dissipating that heat to ensure that the components deliver their expected life.

Posted in: Application Briefs, Application Briefs

Read More >>

Powered by Lithium-Ion Batteries, NASA Spacecraft Explore Mars and the Moon

Lithium-ion batteries Yardney Technical Products Pawcatuck, CT 860-599-1100 www.yardney.com NASA’s Phoenix Mars Lander landed safely near the planet’s north polar icecap in May. Phoenix relies on advanced lithiumion batteries from Yardney Technical Products to dig and look for water, seeking a habitable environment. The Phoenix batteries provide power at night when there is no sunlight for the solar panels to convert to electricity. They can also be used any time when a task requires more power than the primary power source can deliver.

Posted in: Application Briefs

Read More >>

NASA’s Next-Generation Space Suit Built for Orion Spacecraft

Constellation Space Suit Station (CSSS) Oceaneering International Houston, TX 281-228-5300 www.oceaneering.com Oceaneering International has secured a contract from NASA to design and build the agency’s next-generation space suit, known as the Constellation Space Suit System (CSSS). During the initial contract term of six years, Oceaneering will design and build highly reliable, operationally efficient, and simple-to-maintain suits for use during launch, abort, and reentry of the new Orion spacecraft and for all contingency Extravehicular Activity (EVA). The contract includes options to provide ongoing operational and training support, and to design and build suits for use during lunar surface activities.

Posted in: Application Briefs

Read More >>

QuickSilver Servo Motors Drive Autonomous Vehicles

The design of remotely operated, autonomous battery-powered vehicles places special requirements on motion control systems. High torque at low speeds is needed to climb over obstacles, while higher speed operation is needed for cruise speed. Efficient operation from lower voltages (12V to 48V) reduces battery size and weight requirements, while regenerative drives maximize the operating time and distance by recharging the batteries while braking.

Posted in: Applications, Application Briefs

Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.