Synchronization - HBM FS22 SI User Manual

Single interrogator
Multiple
interrogators
FS22 SI
3.5.3

Synchronization

In order to achieve synchronous measurements between
different devices the NTP (Network Time Protocol) syn­
chronization via Ethernet must be used.
Each optical Interrogator can synchronize its internal
clock with an NTP server. It is possible to achieve accu­
racies of 1ms or higher, depending on whether or not a
dedicated NTP server is being used.
Further information about NTP can be found at
http://www.ntp.org.
Measuring Systems Typology
A measurement system can be as simple as a single
interrogator or a bit more complex with combined inter­
rogators with the same or different sampling rates, and
interrogators combined with other equipment.
For the usage of a single interrogator no special synchro­
nization is needed.
BraggMONITOR SI software can only operate one inter­
rogator at a time. If an NTP server is running on the
same PC as the BraggMONITOR SI, the interrogator
internal clock – hence BraggMONITOR SI – will sync.
If more than one interrogator is used, synchronization
becomes important and if an NTP server is running the
equipment will start synching as soon as a first communi­
cation from the server is received.
A4249-8.0 HBM: public
Operation
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