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He was honoured by the [[Government of India]] in 2003 with [[Padma Shri]], the fourth highest Indian civilian award.<ref name="Padma Awards">{{cite web | url=http://mha.nic.in/sites/upload_files/mha/files/LST-PDAWD-2013.pdf | title=Padma Awards | publisher=Padma Awards | date=2015 | accessdate=February 6, 2015}}</ref> |
He was honoured by the [[Government of India]] in 2003 with [[Padma Shri]], the fourth highest Indian civilian award.<ref name="Padma Awards">{{cite web | url=http://mha.nic.in/sites/upload_files/mha/files/LST-PDAWD-2013.pdf | title=Padma Awards | publisher=Padma Awards | date=2015 | accessdate=February 6, 2015}}</ref> |
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<ref name="The Hindu">{{cite web | url=http://www.thehindu.com/todays-paper/tp-national/tp-kerala/honorary-doctorate-for-space-scientist-nagarajan-vedachalam/article162753.ece | title=The Hindu | publisher=The Hindu | date=16 October 2009 | accessdate=February 12, 2015}}</ref> |
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<ref name="The Hindu" /> |
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Thiruvananthapuram: Madurai Kamaraj University has conferred the degree of Doctor of Science (honoris causa) on Nagarajan Vedachalam who played an important part in the development of key technologies used in India’s space programme. For many years, Mr. Vedachalam led a team that produced several devices essential for the country’s launch vehicles and satellites. The group was initially part of the Vikram Sarabhai Space Centre (VSSC) in Thiruvananthapuram and later became the ISRO Inertial Systems Unit. |
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It was this team that indigenously developed dry-tuned gyroscopes that are still used to control the orientation of both launch vehicles and satellites. When the two star-sensors onboard India’s Chandrayaan-1 probe failed, its onboard control system used the gyros to keep the spacecraft correctly oriented. Given international export control laws, such gyros cannot be imported. |
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The team also developed momentum wheels that help to hold a spacecraft’s orientation. The IISU also makes the drives that rotate a spacecraft’s solar array and keep it pointed towards the sun. |
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Mr. Vedachalam was subsequently Director of the Liquid Propulsion Systems Centre that had been given the task of developing the indigenous cryogenic engine and stage for the Geosynchronous Satellite Launch Vehicle (GSLV). The GSLV, equipped with the indigenous cryogenic stage, is expected to make its first flight in December. |
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Mr. Vedachalam joined the Indian space programme in 1969 and served for over 35 years. After retirement, he was appointed by the Department of Space to its K.R. Ramanathan Distinguished Professorship. He is a visiting scientist at the VSSC. |
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The honorary doctorate was conferred on Mr. Vedachalam at a convocation on October 13. |
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<ref name="Times of India">{{cite web | url=http://timesofindia.indiatimes.com/home/In-the-wake-of-Kalki-Mail-accident-recommendations-by-the-Commission-on-Rail-Safety-led-by-Noted-Scientists-including-Nuclear-Scientist-Anil-Kakodkar-and-Space-Scientist-Nagarajan-Vedachalam-constituted-during-former-Union-Railway-Minister-Dinesh-Trivedi-are-yet-to-see-the-light-of-day-Even-when-opting-for-German-designed-coaches-with-centre-buffer-coupling-to-prevent-collision-in-some-trains-the-same-conventional-ICF-doors-are-retained-which-could-get-jammed-due-to-heat-or-pressure-/articleshow/15480640.cms | title=Times of India | publisher=Times of India | date=13 August 2012 | accessdate=February 12, 2015}}</ref> |
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<ref name="Times of India" /> |
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In the wake of Kalki Mail accident, recommendations by the Commission on Rail Safety led by Noted Scientists including Nuclear Scientist Anil Kakodkar and Space Scientist Nagarajan Vedachalam constituted during former Union Railway Minister Dinesh Trivedi are yet to see the light of day. Even when opting for German designed coaches with centre buffer coupling to prevent collision in some trains, the same conventional ICF doors are retained which could get jammed due to heat or pressure |
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<ref name="Fresh Patents">{{cite web | url=http://www.freshpatents.com/Nagarajan-Vedachalam-TamilNadu-invdirv.php | title=Fresh Patents | publisher=Fresh Patents | date=2015 | accessdate=February 12, 2015}}</ref> |
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<ref name="Fresh Patents" /> |
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Archived* |
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(*May have duplicates - we are upgrading our archive.) |
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20120233130 - System and method for archiving emails |
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### |
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The bibliographic references displayed about Nagarajan Vedachalam's patents are for a recent sample of Nagarajan Vedachalam's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Nagarajan Vedachalam filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website. |
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==See also== |
==See also== |
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Revision as of 17:07, 12 February 2015
Nagarajan Vedachalam | |
|---|---|
| Born | India |
| Occupation | Space scientist |
| Awards | Padma Shri |
| Website | web site |
Nagarajan Vedachalam is an Indian space scientist
He was honoured by the Government of India in 2003 with Padma Shri, the fourth highest Indian civilian award.[1]
[2] [2] Thiruvananthapuram: Madurai Kamaraj University has conferred the degree of Doctor of Science (honoris causa) on Nagarajan Vedachalam who played an important part in the development of key technologies used in India’s space programme. For many years, Mr. Vedachalam led a team that produced several devices essential for the country’s launch vehicles and satellites. The group was initially part of the Vikram Sarabhai Space Centre (VSSC) in Thiruvananthapuram and later became the ISRO Inertial Systems Unit.
It was this team that indigenously developed dry-tuned gyroscopes that are still used to control the orientation of both launch vehicles and satellites. When the two star-sensors onboard India’s Chandrayaan-1 probe failed, its onboard control system used the gyros to keep the spacecraft correctly oriented. Given international export control laws, such gyros cannot be imported.
The team also developed momentum wheels that help to hold a spacecraft’s orientation. The IISU also makes the drives that rotate a spacecraft’s solar array and keep it pointed towards the sun.
Mr. Vedachalam was subsequently Director of the Liquid Propulsion Systems Centre that had been given the task of developing the indigenous cryogenic engine and stage for the Geosynchronous Satellite Launch Vehicle (GSLV). The GSLV, equipped with the indigenous cryogenic stage, is expected to make its first flight in December.
Mr. Vedachalam joined the Indian space programme in 1969 and served for over 35 years. After retirement, he was appointed by the Department of Space to its K.R. Ramanathan Distinguished Professorship. He is a visiting scientist at the VSSC.
The honorary doctorate was conferred on Mr. Vedachalam at a convocation on October 13.
[3] [3] In the wake of Kalki Mail accident, recommendations by the Commission on Rail Safety led by Noted Scientists including Nuclear Scientist Anil Kakodkar and Space Scientist Nagarajan Vedachalam constituted during former Union Railway Minister Dinesh Trivedi are yet to see the light of day. Even when opting for German designed coaches with centre buffer coupling to prevent collision in some trains, the same conventional ICF doors are retained which could get jammed due to heat or pressure
Archived* (*May have duplicates - we are upgrading our archive.)
20120233130 - System and method for archiving emails
The bibliographic references displayed about Nagarajan Vedachalam's patents are for a recent sample of Nagarajan Vedachalam's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Nagarajan Vedachalam filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.
See also
References
- ^ "Padma Awards" (PDF). Padma Awards. 2015. Retrieved February 6, 2015.
- ^ a b "The Hindu". The Hindu. 16 October 2009. Retrieved February 12, 2015.
- ^ a b "Times of India". Times of India. 13 August 2012. Retrieved February 12, 2015.
- ^ a b "Fresh Patents". Fresh Patents. 2015. Retrieved February 12, 2015.