Webinar: High-voltage Pantograph Overhead-line Monitoring Using a Fiber-based Measurement Chain

There are two approaches:

1. Additional measurement sensors for determining the aerodynamic force/lift (and the vertical displacement) can be connected to the QuantumX module (ground potential). Due to the product family approach (it is hybrid), fully synchronized systems are no problem.
2. An additional optical force sensor can be used to measure the aerodynamic force instead of one of the accelerometers, also at high voltages.

The optical interrogators from HBK (DAQ) needs to be connected to a PC for configuring and data saving. There are models, however, that can be then disconnected from the PC and operate as standalone and record data internally (FS22 Static).

Check for further details on our product page FS22 Industrial BraggMETER.

The division by zero point is set to the last non division by zero value.

If you use the MXFS fibre optical Interrogator and IEEE1588:2008 (PTPv2), it is typically bellow 100ns.

By using IEEE1588:2008 (PTPv2). 

For more details please visit our website.

Yes, using an IMU is a possible solution.

All the sensors are available for sale and offered on a project basis, because of typically additional clarifications are needed for integration.

There is no protection for the sensors because of the fibre optical principle they are not influencing the measurement result.

Frequency of sensor calibration is necessary depends on the application and quality assessment requirements. In principle, it can be handled like all other force sensors.

The optical eight optical channels are recorded with 1kHz and stored in an 8 byte resolution.

Accurate and reliable data are the basis for these kinds of systems. The integration in the maintenance regime with a rapid response to trends and events is also very important. Starting with the biggest faults in the network, a relatively fast and higher general quality level can be reached.

HBM provides APIs for direct access to the data stream. For clock synchronization, PTP is recommended, but other protocols are also available.

For more details visit: Precision Time Protocol and Drivers for Compability with Third Party Software

We have observed, that the most robust approach to determine faults are the force values.

The thermal effect is compensated by the sensor body design.

A camera was not installed because of the issue of the lens soiling. But for other applications, using the QuantumX/catman product family, we do use cameras. Recording of compressed video streams from Ethernet cameras as well as Windows® DirectShow cameras are supported.

The products are available for sale on a project basis. Additional to the sensor’s connectors, connector boxes, etc. are also needed and differ depending on the integration possibilities. Please send us your project requirements.

This was not tested and needs additional consideration. If the force difference is big enough it should be possible in principle.