R&D for an innovative acoustic positioning system for the KM3NeT ...
R&D for an innovative acoustic positioning system for the KM3NeT ...
R&D for an innovative acoustic positioning system for the KM3NeT ...
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Time synchronization measurements<br />
Measurement of offshore electronics latency = 170 ± 1 µs <strong>for</strong> all boards<br />
Time of Trigger known<br />
(accuracy < ns )<br />
FCM off-shore<br />
Inserts time in<br />
<strong>acoustic</strong> data<br />
Optical link<br />
FCM<br />
on-shore<br />
Acoustic<br />
Data<br />
Server<br />
Trigger<br />
Signal<br />
Signal<br />
generator<br />
Acou<br />
Board<br />
Test set-up<br />
Received signal. Trigger Signal sent at T=0<br />
Sinusoidal<br />
wave<br />
preamp<br />
preamp<br />
∼100 ns delay with<br />
respect to trigger signal<br />
Giorgio Riccobene, LNS-INFN VLVnT 2009, A<strong>the</strong>ns October 13 –15 ,2009
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