Product news

The palm-sized µUniDAQ, disynet’s 4-channel USB data acquisition and logging device, has now also been successfully used in the railroad sector. The recording of vibration measurement data with this compact data logger (≈12x11x4 cm) during the measurement run of rail vehicles is a very efficient solution for this application.

This is mainly due to its compact design and easy handling, as flexibility is essential for mounting on the various railway bogies. The very high sampling rates of up to 128 kHz with a resolution of 24 bits and galvanic isolation were also decisive factors in the choice of the system. This ensures reliable, low-noise and precise operation without ground loops and potential problems.

Another advantage is that operation with a battery pack is also possible without an external power supply. This significantly reduces the amount of cabling required and saves time during installation. Measurements during passenger operation are also made easier, as there is no need for an interface to the carriage body and passengers are therefore not obstructed.
The customer equipped the data logger with a mounting bracket so that it can be attached directly to the bogie. The positions for measurement are located on various components on and in the bogie. The focus here is on being able to alter the setup in the depot as quickly as possible after a measurement interval.

In order to optimise the measurement system for the customer, a number of customer-specific software and hardware adaptations were made under the disynet slogan "MADE TO MEASURE". In addition to the logger mode, the µUniDAQ supports the USB data acquisition mode. The USB connection renders an additional power supply superfluous. The two versions µUniDAQ-BR and µUniDAQ-IEPE can be used for a wide range of sensors, not just strain gauge and IEPE-based sensors. The ability to operate up to four µUniDAQ devices of both versions synchronously with in-phase sampling further increases flexibility.


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