|Mrs. A. Chatterjee/ Mr. A. K. Suri|
|Room: 34, Main Building|
|CSIR – NPL, Dr. K. S. Krishnan Marg|
|New Delhi – 110012|
|Ph: +91 4560 8601|
|Fax: +91 4560 9240|
Precise Timing Systems
CSIR-NPL Stands as TIME KEEPER of the COUNTRY
CSIR-NPL is the responsible for highest level of time and frequency measurements in India and keeping it traceable to the international standards. Time is one of the three primary units of physical measurement that has been maintained at NPL since its inception Since 1974, the time keeping has been based on one or more Cesium (Cs) atomic clocks.
The major activities in timekeeping at NPL comprise the following:
- Maintaining the group of several Cs atomic clocks with stringent environment control and clean uninterrupted power.
- Establishing a precise time transfer link (or traceability) between this time and the international time at International Bureau of Weights and Measures (BIPM), Paris using a continuous satellite link.
- Disseminating the precise time and frequency to users within the country via teleclock and NTP server.
- We undertake calibration of various frequency standards, clocks and timers.