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NextGen ScopeCorder Supports SiC/GaN Inverters

Yokogawa Test & Measurement has added another new instrument to its ScopeCorder family of portable multi-channel data-acquisition recorders, extending and improving their speed, channel count and data acquisition features. The DL950 is designed to offer manufacturers a highly detailed view of an application’s electrical and mechanical behavior.

“With the DL950, the ScopeCorder family attains new levels of data acquisition speed and greatly improved usability”, says Terry Marrinan, Yokogawa Test & Measurement’s Vice President for Europe & South East Asia. “Offering the versatility to discover more from a large number of input types, the insight available from a high bit resolution and a high level usability from easy set-up, the DL950 gives developers the tools they need to gain detailed information on the behavior of energy efficient and new renewable energy technologies and devices.”

The new ScopeCorder is inteded for many markets, including transportation for applications such as testing electric vehicles and SiC/GaN inverters. Uses in the power and energy sector include capturing data on renewable energy systems, while in industrial equipment it can be used for testing high efficiency motors, robots and sensors. For power and harmonics analysis the G05 option is available. Here a single DL950 can evaluate a system with battery-driven motors, such as an EV. The DL950 calculates the conversion efficiency from the input and output power of the inverter and analyzes the effects of harmonics caused by external disturbances while capturing mechanical variations in motor speed and torque.

The DL950 is easy to use via a large 12.1 inch touch screen, providing convenient access to its features. Yokogawa’s power analyzers and a selection of other instruments can be time synchronized through the device’s integrated IEEE1588 PTP master function and the IS8000 Integrated Software Platform. The units can also be controlled remotely, allowing home workers to continue conducting tests while working away from the test laboratory. Dedicated application menus simplify the setup. Touching an application icon brings up the graphical setup screen for the application, while users can also register frequently used applications as favorites.

Providing a combination of high-speed sampling and signal fidelity of an oscilloscope and the long-term data recording capabilities of a recorder, the DL950 measures signals at a high bit resolution while securing data in harsh environments. Building on the capabilities of the DL850E, the new DL950 ScopeCorder can handle larger amounts of data at a faster sample rate and with a longer recording time. It has a large acquisition memory up to 8 Gpoint, and a 200 MS/s sample rate at 14-bit, compared to the DL850E’s 100 MS/s at 12-bit. Up to 32 isolated analog channels with 10 MS/s at 16-bit or up to 128 digital channels can be provided.

The dual capture feature offers both data acquisition recorder functionality and the sample speed and trigger features of an oscilloscope. This allows developers to analyze the finest waveform details while observing multi-channel measurements over longer periods. Five options for acquiring data, allowing users to choose the best method for their application are offered. They can opt for normal acquisition into the fast internal acquisition memory, recording to flash memory (coming soon), recording to the internal hard disk (SSD) or directly to the PC via normal Ethernet or opt for 10 Gigabit Ethernet. Data can be captured to a PC streaming over a very long time at up to 160 MB/s, with data volumes limited only by the PC’s storage. Using 10 Gigabit Ethernet, data can be transferred from the DL950 to a PC at 50 times the speed of its predecessor. A fiber optic cord and the Yokogawa’s IS8000 PC software are used for transmission. The DL950 will also feature Flash Acquisition (coming soon), used to store data when a PC cannot be used, for example when capturing data from within a vehicle, power plant or other similar applications. In this case data can be captured over a long time with a high-speed sample rate of 20 MS/s (8 CH) and 10 MS/s (16 CH).

The 512 GB internal SSD can record up to 50 days. Depending on the sample rate it can record for five hours on one channel at up to 2 MS/s, or record at 200 kS/s for 20 hours with 16 channels. Waveforms from dual capture can also be recorded, useful for in-vehicle endurance testing and capturing rare spontaneous events.

21 types of input modules are available, including 12-, 14- and 16-bit isolation modules, universal voltage/temperature modules, acceleration/voltage modules, strain modules and frequency modules.

Up to five DL950s can be synchronized to allow the use of up to 160 voltage channels. Alternatively, up to 640 temperature channels can be used, employing 16 channels with eight slots for each of five DL950 units. The subunits can be synchronized to start and stop their measurements via signals from the main unit. AS

For further information on the DL950 click here.

 



 
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