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Vibration Monitoring System

Monitoring System

ANGARA Technology has created a vibration monitoring system for use in research labs, accelerator complexes and medical physics facilities.

With appropriate accelerometers, it can continually record RMS displacement down to nanometres and generate real-time VC-curves with selectable frequency range.
The default control interface is EPICS, but other options such as TANGO are available, making the system easy to integrate into an existing control infrastructure.

Please contact us for specification options, ordering, and pricing information.


Vibration Monitoring System Specifications
Vibration Monitoring System Control Interface

Control Interface

The control interface is created using Control System Studio, which accesses the EPICS process variables (PVs). EPICS is a free and open-source physics and industrial control system. It’s the most used control system in experimental physics, and is continually being developed by a community from different institutes world-wide, so long-term support looks assured.
An EPICS archiver can record all data being produced. Other plots and status information can be easily added, either by the user or on request to ANGARA Technology.

AT-2501 Connectors

Optical Trigger Distribution Module

The AT-2501 is a CompactRIO module for distributing electrical and optical trigger signals between cRIO chassis and other instruments. Each output has adjustable delay, pulse-width, polarity and pulse-train generation. The optical connectors are configured as two inputs and two outputs.

Please contact us for specification options and ordering information.


· Fibre-optic input and output: trigger or data
· Impedance-matched trigger input and output
· Precise signal-based synchronisation (2.5 ns rms jitter)
· Minimal programming to build complex trigger regimes
· Can synchronise with precision clocks (GPS, White Rabbit etc)
· Choice of fibre-optic connectors: ST or SMA
· Optical communication distance greater than 1 km possible 

Application Examples

Trigger distribution with delay compensation

AT-2501 Trigger Module in Setup
Typical trigger distribution example

Digital communication bridging potential differences

AT-2501 Trigger Module Data Communication


  • Science research labs 
  • Large physics facilities
  • Energy/electrical network infrastructure
  • Test and measurement labs
  • Medical physics installations
  • Materials testing labs


  • Master trigger distribution
  • Trigger local instrumentation via electrical connection
  • Trigger remote cRIO chassis via fibre optic connection
  • Ground loop elimination
  • Electrical isolation between cRIO chassis at different potentials (HV applications)
  • DAQ synchronisation between multiple cRIO chassis with propagation delay compensation
  • Optically-coupled communication (RS232, RS485 etc) when using FPGA mode
  • Complementary to local cRIO master clocks
  • Optically-isolated high-speed digital IO
  • Time-based or signal-based synchronisation
  • Cost-effective method to synchronise (signal-based) with PXI chassis (SPEXI* and future FMC OTD card)
  • Generate delays, pulse trains etc with simple programming - no complex coding required

    *SPEXI: Simple PXI express FMC Carrier Board (SPEXI) CERN OHWR project


· TTL (50 Ohm switchable)
· Optical (1 or 2), 820 nm
· cRIO FPGA (via DIO) 

· TTL (can drive 50 Ohm)
· Optical (2 or 3) 820 nm
· cRIO FPGA (via DIO)

Maximum Symbol Rate
· 40 MBd (FPGA-controlled)

Pulse Width 
· 10 ns min, 42s max.  
· Width step size : 10 ns

· 10 ns min, 42s max 
·  Delay step size : 10 ns

Edge Jitter 
· 2.5 ns rms typical

Pulse Train
· 2 to 65536 pulses
· Adjustable delay, width and pulse rate

· Rising or falling edge triggered 

Electrical connectors

Fibre connectors 
· ST or SMA

Code librairies
· Library and examples provided for LabVIEW


    Rampe de Choully 2
    CH-1242 Satigny

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