rramesh Posted August 12, 2012 Share #1 Â Posted August 12, 2012 Advertisement (gone after registration) For those concerned about the future of Leica M sensors from Truesense, note that it was Truesense that supplied the sensors on the Curiosity rover sent to Mars. These were 2 megapixel sensors in the main cameras, something that would capture images small enough to be transmitted over UHF. Link to post Share on other sites More sharing options...
Advertisement Posted August 12, 2012 Posted August 12, 2012 Hi rramesh, Take a look here Truesense Imaging. I'm sure you'll find what you were looking for!
CalArts 99 Posted August 12, 2012 Share #2 Â Posted August 12, 2012 Truesense Imaging has been doing well in the industrial and scientific segments. They are certainly a very viable company. Â Although the sensors used by JPL were purchased when Kodak owned the company. And those sensors that were used in Curiosity were specified back in 2004 and locked in to the design back then, too. They aren't current sensors. Â Nonetheless, it's great press for Truesense. And I hope they can continue to provide products for NASA's projects. Link to post Share on other sites More sharing options...
Fotofanatiker Posted August 12, 2012 Share #3 Â Posted August 12, 2012 And no matter which company provided the lens - "red edges" shouldn't be a problem on Mars... Link to post Share on other sites More sharing options...
pico Posted August 12, 2012 Share #4 Â Posted August 12, 2012 Although the sensors used by JPL were purchased when Kodak owned the company. And those sensors that were used in Curiosity were specified back in 2004 and locked in to the design back then, too. They aren't current sensors. Â It appears the mission is over. Â Seriously, we should consider that the electronics have to be hardened - fault-tolerant and self-correcting. Good for Truesense and NASA. Â (It irritates me a bit when it is reported that Curiosity is sending the images and data to earth. Curiosity sends them to a Mars satellite which in turn sends to Earth. I'm fairly sure that Earth verifies reception so that Curiosity can refresh RAM.) Link to post Share on other sites More sharing options...
mjh Posted August 12, 2012 Share #5 Â Posted August 12, 2012 It irritates me a bit when it is reported that Curiosity is sending the images and data to earth. Curiosity sends them to a Mars satellite which in turn sends to Earth. NASA is using three channels, one directly to Earth, the other via two different orbiters. Link to post Share on other sites More sharing options...
mjh Posted August 12, 2012 Share #6  Posted August 12, 2012 In case anyone really wants to know, the direct Earth link via Curiosity’s high-gain antenna has the lowest bandwidth – a couple of kb/s (transmitting full-resolution image data would take a long time but this link is quite useful for sending commands to the rover). The link to Mars Odyssey has a bandwith of about 256 kb/s; this data is immediately relayed to Earth. The highest bandwidth link is the one to Mars Reconnaissance Orbiter (2 Mb/s) but the data received by the orbiter is just buffered and sent to Earth at a later time. If Mars Reconnaissance Orbiter should fail there is still the European orbiter, Mars Express, as a possible backup; that would be the fourth channel. As long as at least one of those links is functional NASA can talk to and receive data from the rover, but obviously the link via MRO is preferred for high-resolution image data. On the other hand the satellite links are only available for a couple of minutes while the orbiters pass overhead, whereas the direct link is available for the greatest part of each Martian day. Link to post Share on other sites More sharing options...
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