Fourth generation ScopeCorder boosts capture rates and synchronisation
Yokogawa has launched its fourth generation of ScopeCorder with a boost in data resolution and capture rates.
The DL950 is aimed at developers testing electric vehicles and SiC/GaN inverters, capturing data on renewable energy systems and testing high efficiency motors, robots and sensors both in the lab and remotely.
The DL950 has an acquisition memory up to 8 Gpoint, and a 200 MS/s sample rate at 14bit resolution, compared to the DL850E’s 100 MS/s at 12bit. This is twice the sample rate but with much more detail. The DL950 can run up to 32 isolated analog channels with 10 MS/s at 16-bit or up to 128 digital channels. This allows a wide variety of electrical signals, mechanical performance parameters from sensor data to be captured and displayed alongside decoded vehicle and network bus signals.
The dual capture on the ScopeCorder enables 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. The DL950 offers five options for acquiring data, allowing users to choose the best method for their application. 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.
“With the DL950, the already excellent 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 behaviour of energy efficient and new renewable energy technologies and devices.”
Next: ScopeCorder sychronisation
Data from the ScopeCorder 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 size. 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 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 these applications the unit would usually need to be switched off before moving it to an office to save data on a PC. Using Flash Acquisition, data can be captured over a long time with a high-speed sample rate of 20 MS/s (8CH) and 10 MS/s (16CH).
The 512GB 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.
Up to five DL950s can be synchronized via a proprietary optical cable or IEEE1588 link 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.
The IS8000 Integrated Software Platform allows multiple Yokogawa units such as power analysers or MSO oscilloscopes to be connected and synchronised with a ScopeCorder, again using 1588 links. This allows systems acorss the R&D and produciton development cycle to be used together with the synchronised data form all systems displayed on a single screen. All the test units can be controlled remotely, allowing home workers to continue conducting tests while working away from the test laboratory.
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