Monday , August 19 2019
Home / africa / Take Mars Vital Signs with CCD image sensors

Take Mars Vital Signs with CCD image sensors



Mars' research deepens with the successful arrival of US Mars InSight in Morocco on November last year. InSight, which stands for interior research using seismic research, geodesy, and heat transport, will study Mars' interior rather than its surface.

To fulfill his mission, check the inside of Mars to determine how it is formed and maybe the Earth formed, the landowner's scientific instruments must have direct contact with the surface of Mars. Thus, the instrument deployment camera on the globe handheld, together with what is called the "instrument context camera", includes advanced color CCD image sensors.

NASA, Mars(Image courtesy: NASA)

The mission controllers said that the color enhancement of the blank and white image sensors used in previous Mars missions provides more detailed information about the surroundings of InSight. This truth is critical to the proper placement of experiments.

During previous Mars missions, sensor technology was used to precisely position the experiments to obtain data for the Red Planet. NASA's Jet Propulsion Laboratory (JPL) and contractor Teledyne DALSA improved imaging sensor technology to survey the InSight landing site and determine the optimal location for the first deployment of another planet, seismometer, and heat probe capable of drilling 15 feet down the Mars land. (Apollo astronauts managed to throw a deep hole about 10 feet in the early 1970s.)

Teledyne DALSA, Ontario Digital Imaging Specialist, provided that color imaging sensors used to assist mission scientists use two major experiments that will utilize Mars' essential features: Seismic Experiment for Internal Structures (SEIS) and Heat Flow package of physical properties (HP3). Prior to the activation of HP3 and SEIS, the instrument deployment camera mounted on the robotic arms of the unloading device provided landing sites, Elysium Planitia, color stereo images between the Mars volcanic activity centers. These images help mission scientists identify the best places for a heat probe and seismometer. The context camera is designed to capture wide-angle views of the surrounding area where the instruments are located.

JPL mission controllers said that SEIS was successfully deployed on 22 December. "Since then, it has completed extracts, leveled with three motorized feet, and collected data from various sensors for about 12 hours each step," or Mars Day, "Rick Welch, Head of InSight Mission, explained in an email.

SEIS is designed to detect Mars attacks, meteor effects, and other events that cause seismic waves. When the link between the ground and the seismometer is adjusted to reduce the noise transmission through the connection, SEIS is placed on the windshield. Thereafter, the heat probe will be placed on the surface, based on color CCD image sensors, where the "mole" will be released to begin blocking off the surface. Welch said the probe should reach its maximum depth about two months after the mole is activated.

The original design of the InSight camera began with full-frame CCD detector blocks developed by NASA's "dual robot geologists", rovers Spirit and Opportunity, unloaded in 2003.

Justin Maki, head of the camera team at InSight, said the exact deployment of the seismometer and heat probe required a larger surface detail, requiring color image sensors. JPL decided to upgrade the same reliable detector used in previous Mars missions in collaboration with Teledyne DALSA to add a color microfilter to highlight surface details.

The company did not respond to the interview requests, but the announcement indicated that the instrument deployment chamber at the unloading hand will provide "three-dimensional color views at the unloading site, instrument deployment, and actions to inform engineers and scientists. best spots for seismometer and heat flow probe to collect measurements from inside Mars. "" We're basically moving our hands to get stereo images, "Maki said in an interview.

At the same time, the contextual camera provides a view of the fish eye in the area around it, including 3-D relief. Teledyne has previous experience in supplying JPL with electronic eyes that provide people with telecommunications in our Solar System. The company also provided a dozen black and white CCD image sensors for NASA's brave Mars Rover's "curiosity."

– George Leopold is the former CEO of EE Times and author of calculated risks: Gus Grissom's Excessive Life and Times (Purdue University Press, Updated, 2018).


Source link