4 ms·
As a user of WhiteRabbit, I can confirm a sub-10ps sync (two clocks phase lock) over 50km fiber connection for variable temperature of fiber (biggest problem of
by nuccy 9mo ago
As a user of WhiteRabbit, I can confirm a sub-10ps sync (two clocks phase lock) over 50km fiber connection for variable temperature of fiber (biggest problem of clock sync over fibers is temperature induced length change of the fiber itself, which needs to be measured and compensated).
- RossBencina 9mo agoOut of interest, how do you measure a sub-10ps phase lock between devices 50km apart?
- willis936 9mo agoThe standards-compliant endpoints do all of the work. They count clock cycles for ping pong messages and share with each other the length of time so time-of-flight is tracked and compensated for.
- deleted 9mo ago[deleted]
- namibj 9mo agoRun 2 or 3 separate concurrent sync's and statistically compare the resulting clocks, for example.
- nuccy 9mo agoAs of now, for testing, the two WR endpoints are sitting on the same desk with 50km fiber in a thermal chamber (simulating temperature changes in the soil), but in future they will be separated indeed.