High-definition oscilloscopes span 500MHz and 350MHz

The compact and lightweight multi-channel DLM3000HD meets market demand for high-precision, high-speed measurement of complex digital waveforms during inverter/motor development and testing.

With a lineup spanning 500 MHz and 350 MHz frequency bandwidth models, the combination of proprietary low-noise detection and high resolution allows technicians to perform studies in minute detail, faster than ever before. The new IS8002CDV software further supports expediency with its rapid response times, swift analysis of measurement data, and advanced algorithms.

Development Background

Building on the existing DLM3000 mixed-signal oscilloscope series launched in 2018, Yokogawa applied its 100+ years of expertise and innovation in measuring instrument technology to develop the DLM3000HD.

The product stems from requests made by customers for a lightweight, compact oscilloscope with higher precision and rapid start-up speed that supports the ongoing requirement for more energy-efficient and sustainable motors and inverters. Adopting the DLM3000HD to capture highly accurate voltage and current waveforms with high sample rates addresses the capabilities of electric motors and drives to ensure efficiency in transportation sector applications, for example.

Another development driver is next-generation power devices deploying silicon-carbide (SiC) technology, which can switch on and off in a few nanoseconds. Oscilloscopes offering bandwidths of 350 MHz or greater are necessary to capture the fast rising and falling edges of the transient (high-intensity voltage spike during switching).

Thanks to its multi-channel measurement, wide bandwidth capabilities and vastly improved vertical axis resolution compared with the existing-generation oscilloscope, the DLM3000HD series steps up to the challenge of performing high-precision parameter measurements, statistical analysis, and real-time mathematical functions.

Main Features

In comparison with the existing DLM3000, resolution some 16 times greater (12 bit) in the vertical axis captures waveform overshoot and ringing for more accurate observation of tiny changes in high-speed signals.

A long 1 Gpoint memory (double the 0.5 Gpoint memory of the DLM3000) supports the development and evaluation of next-generation inverter devices by recording multiple channels simultaneously, greatly increasing work efficiency. Engineers can make accurate observations of subtle changes in measurement target signals over a long period of time (even at high sample rates up to 2.5 GS/s), confirm signal waveforms, and detect signals causing unexpected anomalies.

Another feature of the DLM3000HD series is the pioneering auto set-up function for in-vehicle serial bus development and evaluation, a capability that is also possible during post data acquisition analysis. This time-saving function, which automatically configures the optimal bit rate and threshold level, accelerates the delivery of secure, reliable measurement results in the automotive industry.

Users can take advantage of 4-channel synchronous measurement with the DLM3000HD, while the optional dual-unit synchronous measurement (DLMsync) function facilitates a unified system of eight channels at the touch of a button via the connection of two units. In addition, the DLM3000HD supports time synchronization with power analyzers and other waveform measuring devices, providing time-correlated measurements.

High noise immunity allows operation even in the harsh environmental conditions often prevalent in development and testing areas, meaning the touch panel is far less likely to malfunction. It is possible to disable the touch panel and use only the buttons if absolutely necessary.

With its updated UI, IS8002CDV software offers easy remote control without the need for any programming. There is no learning curve thanks to emulation of the instrument on the PC, allowing operation as normal. The offline analysis of files also allows engineers and researchers to use the instrument for other measurement tasks, increasing its utilization.

Target markets are electronics in transportation sectors such as automotive and rail, including electric and autonomous vehicles and power/energy sectors such as renewable energy, smart cities/homes, and data centres