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TRANSCRIPT
Significant Achievements
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xxxvi okf"kZd izfrosnu 2012-13 lh,lvkbZvkj&jk"Vªh; HkkSfrd iz;ksx'kkyk
New Standards Established
Quantum Metrology & Measurements
dimension
Fluid Flow
High Precision Roundness Measuring Machine: nominal Range : 0-4000 mm Working Range : 0-3700 mm Resolution : 0.01 µm Maximum error : 1.5 µm Repeatability : 0.1 µm
Newly Developed DN 100 Flow System
Programmable josephson voltage standard
(operating at minus 269 degree Celsius)
New DN100 Rig along with DN50 and DN200 Weighing Tanks, Fishtail, Nozzle and Diverter (designed and developed in NPL)
xxxviiAnnual Report 2012-13CSIR-National Physical Laboratory
New Standards Established Continued ...
temperature
time and Frequency
establishment of High temperature Blackbody source
(for the calibration of infrared total radiation pyrometers in the range 600 to 3000ºC.)
1. Generation of a stable UTC time scale linked to BIPM with a jitter of 0.3ns. The variation in the time scale UTC (NPLI) is within 10 ns over the last one year. Its frequency is stable to better than 1 x 10-14.
2. A new Time Service has been started over the Internet using the NTP protocol. This would enable time synchronization of Personal Computers connected to the Internet. The domain name is : time.nplindia.org
Fixed point realization facility for the new Co-C and Fe-C metal carbon eutectics using three zone heating furnace have been developed.
schematic of time scale utC(nPlI)
Establishment of High Temperature Blackbody Source for the
Temperature
calibration of infrared total radiation pyrometers in the range from 600 ºC to 3000 ºC.
d l f d l f l f h d We are developing fixed point realization facility for the new Co-C and Fe-C metal carbon eutectics using three zone heating furnace.
Time and Frequency1. Generation of a stable UTC time scale linked to BIPM with a jitter of 0.3ns.
The variation in the time scale UTC (NPLI) is within 10 ns over the last one year.The variation in the time scale UTC (NPLI) is within 10 ns over the last one year.Its frequency is stable to better than 1 x 10-14.
2. We have started a new Time Service over the Internet using the NTP protocol . This would enable time synchronization of Personal Computers connected to the Internet. The domain name is :
time.nplindia.org
Micro Phase Stepper
5 MHz
1PPS
5 MHz
IN
out
5 M
Hz
out
FREQUENCY DOUBLER
5 MHz
1PPS
To fountain lab
5 MHz
Distribution
To Calibration lab
Hydrogen Hydrogen
Schematic of Time Scale UTC(NPLI)
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Cs Clock 25071A-C001
Cs Clock 25071A-C001
Cs Clock 35071A-C001
Cs Clock 35071A-C001
Cs Clock 65071A-C001
Cs Clock 65071A-C001
resolution= 2 (2-32)rad.Freq. Resolution = 5E-19
Automatic Switching Unit
Time interval counter 1
(25psec resolution)
START
STOP
1
2
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1 PPS
1PPS
1PPS
1PPS
1PPS
IN
ou t
10 M
Hz
1PPS
Amplifier-1
1PPS
outMaser - HM1
MHM2010
Maser - HM1MHM2010
1PPS
@
Cs Clock 75071A5071A--C001C001
Cs Clock 75071A5071A--C001C001
Cs Clock 85071A5071A--C001C001
Cs Clock 85071A5071A--C001C001
5
7
Controller Workstation To To Satellite link lab.
1PPS
1PPS
xxxviii okf"kZd izfrosnu 2012-13 lh,lvkbZvkj&jk"Vªh; HkkSfrd iz;ksx'kkyk
Materials & Products
Free standing carbon based anode -for li – ion battery
csir – new Millennium indian technology leadership initiative
InnOvatIve sOlutIOn FOR sOlaR eneRgy stORage
carbon nanotube based anode carbon Fiber based anode
for clean energy generation -To be used for mobile communication towers (Reliance Industries)
nPl cecri ncl
reliance industries (industrial partner)
CSIR – TAPSUN Project
nPl – CeCRI Partnership
Discharge Capacity– 206 mAh/gDischarge capacity- 196 mAh/g
High Performing carbon Materials
development of Fuel cell
cnt incorporated carbon foam
• Porous conducting carbon paper of much better than International quality Developed by NPL Scientists
• Carbon composite bipolar plate of superb quality developed by NPL Scientists
• Fuel Cell Assembled by CECRI
• DuPont USA Polymer applied by NCL
applications EMI SHIELDING
Material for Aerospace Applications
ANODE MATERIAL for Lithium ion Batteries
Light weight Electrode for Lead Acid Batteries
advantagesSignificant weight
reductionSize reduction of batteryBetter current collection
efficiencyEasy recycling Higher energy & power
densities
Carbon foam : sponge-like rigid engineering materials low density, large surface area with open cell wall structure
Patent Applied : Light weight carbon foam as electromagnetic interference (EMI)shielding and thermal interface material for aerospace applications
xxxixAnnual Report 2012-13CSIR-National Physical Laboratory
Source materials: HVPE grown poly-crystalline GaN target & RF Nitrogen plasmaSubstrate : Sapphire (0001)Growth Temp : 720°C
laser Molecular beam epitaxy of gan based Materials
nano Fabrication
• High crystalline quality GaN epitaxial layers grown on sapphire (0001) - X-ray rocking curve FWHM of (0002) plane : 102 arcsec (Reported: ~200 arcsec)
• Low background impurity level, especially oxygen that alters the electrical property (below detection limit of sIMs : <ppm) (Reported: High Oxygen impurity level)
• Ferromagnetic (NiFe) nanorings by E-beam lithography
• Gold Break junctions < 5nm on Si/SiO2
Materials & Products Continued ...
xl okf"kZd izfrosnu 2012-13 lh,lvkbZvkj&jk"Vªh; HkkSfrd iz;ksx'kkyk
Maitri Station Since1981Ionospheric parametersRadio & microwave communicationStudies of Polar Environment
New Indian Research station ‘Bharati’ (69° 24’S, 76° 11’ E) at Larsemann Hills, Antarctica. The new station is 3000 kilometre away from the present Maitri station (70° 45’ S, 11° 44’ E) set up under the leadership of CsIR – nPl scientist set up for space physics Research
Estimated emission factor of ammonia from rice-wheat cropping system at IARI research farm, New Delhi. The average emission factor of ammonia was 96.7 gnH3-n/kg-n/ha for wheat and 82.9 g nH3-n/kg-n/ha for rice.
Estimation of Ammonia Emission from Agriculture field
radio & atmospheric sciences
Materials & Products Continued ...
Scientific facilities at Antarctica developed by CSIR-NPL