Oscilloscopes on parade at Sensor & Test exhibition

13th May 2015

Mick Elliott

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Oscilloscopes will take centre stage on Rohde & Schwarz’s stand at the Sensor & Test exhibition in Nuremberg (May 19-21). Products range from three HMO entry-level oscilloscopes with bandwidths of 50MHz to 500MHz to the mid-range RTM2000 and RTE with up to 2GHz bandwidth and the high-performance RTO oscilloscopes with up to 4GHz bandwidth.

A high definition mode increases the vertical resolution of the RTO and RTE digital oscilloscopes to up to 16 bits, a 256-fold improvement over the 8-bit resolution available in standard mode. To achieve this higher resolution, the signal is low pass-filtered directly after the A/D converter. This reduces the noise, while increasing the signal-to-noise ratio.

The higher resolution leads to sharper waveforms, showing signal details that would otherwise be masked by noise. The high dynamic range is especially important for measurements on power electronics and for analysing small sensor signals. The solution allows the bandwidth, and therefore the vertical resolution, to be flexibly adjusted based on the application.

A new spectrum analysis and spectrogram option allows spectrum analysis to be performed simultaneously alongside time domain, logic and serial protocol analysis. Interactions such as occur in electronic devices with RF components can be quickly analysed with a single measurement.

Featuring hardware-assisted implementation of this function for extremely fast analysis, operation oriented on that of spectrum analysers and a waterfall function, the R&S RTM universal oscilloscope is ideal for EMI debugging applications when used with appropriate near-field probes.

For the first time, Rohde & Schwarz will be presenting the new RTx-K50 trigger and decoding option for Manchester and NRZ coded serial protocols. The option now makes it possible to use the RTO and RTE oscilloscopes to debug various common serial protocols such as Profibus, Dali and MVB. Thanks to the flexible configuration of the telegram structure, the solution is also ideal for proprietary serial buses such as are commonly used in industrial, aerospace and defence applications. Users can define their own preamble, frame ID, data, CRC and other telegram fields.

New is also the RTO-K52 decoding option, which allows the RTO oscilloscope to analyse data from up to 6.25 Gbit/s 8b10b-based interfaces. These types of buses are used in a variety of applications such as the common 8b10b coded USB 3.0 and PCIe interfaces as well as the MIPI M-PHY bus used in smartphones and display interfaces such as HDMI and DisplayPort.