Data acquisition

times the speed of its predecessor. A fibre 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 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. The DL950 provides ultimate versatility,

as it can be connected to 21 types of input modules. These include 12-, 14- and 16-bit isolation modules, universal voltage/ temperature modules, acceleration/voltage modules, strain modules and frequency modules. Up to five DL950s can also be synchronised

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 synchronised to start and stop their measurements via signals from the main unit. The DL950 is also easy to use via a large

12.1 inch touch screen, providing convenient access to its wealth of features. Yokogawa’s power analysers and a selection of other instruments can be time synchronised 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 favourites. “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.”

Yokogawa Test & Measurement

Instrumentation Monthly March 2021 multiple measurements on one software platform

Yokogawa Test & Measurement’s IS8000 Integrated measurement software offers multiple measurements on one software platform, accelerating development. Integrated measurement software brings together data from different instruments, producing a clearer view of how devices under test respond to events and control signals.

data from several test instruments on the same screen, giving developers a clearer picture of the timing of control signals and switching events and how products being tested react to them. The Yokogawa IS8000 Integrated


Measurement software platform solves the challenge of developing sophisticated products such as motor inverters, which often need several instruments to capture all the test data. Oscilloscopes offer high sample

speed and in-depth views of waveforms, Yokogawa’s ScopeCorder can display many types of signals in high resolution, while power analysers offer unrivalled accuracy in power measurements. However, operating these multiple instruments can be difficult due to the different user interfaces and the need to correlate the timing of the various input signals. The IS8000 software platform meets this

challenge by tightly integrating the timing, control, and data collection from several instruments using an IEEE1588 PTP protocol, USB or Ethernet, creating a comprehensive measurement suite. Allowing instruments to work together as a

whole ensures coherent measurements during product development, making it easier to debug and analyse data by viewing all measurements on a single display. It also allows data to be shared easily throughout an organisation. Using the IS8000 leads to greater efficiency,

as it ensures less time is spent developing test methods and more time devoted to gathering actual test data. The software provides scalability, offering

optional software packages to achieve more in- depth data analysis as users’ needs evolve. Example uses for the IS8000 include the testing

of motors and inverters for products such as vehicles, elevators, air conditioners and power generating equipment. To capture rapidly changing waveforms,

IS8000 can work with Yokogawa’s DL950 ScopeCorder to store up to eight channels of data in real time on a PC at a sampling rate of up to 10 MS/s, through the 10 Gigabit Ethernet. This means that longer recording times are now possible for high-speed, multi- channel inputs such as gate signals and switching waveforms of multi-phase inverters. IS8000 can be used to remotely operate

Yokogawa’s high-precision power analyser, high- speed recorder and oscilloscope, which can all be monitored and configured from the software. Additionally, third-party high-speed

cameras can also be controlled, making it easier to operate and manage various instruments for measuring power, physical phenomena, video, and control signals. The software allows users to run up to

16 independent FFT processes for calculation of frequency and integrated value and filter processing. Customised reports are easy to generate simply by dragging and dropping measurement data and waveforms onto the report sheet. An IS8011/IS8012 software package is available,

allowing harmonic and flicker tests to be performed in accordance with IEC61000-3-2, 3-3, 3-11 and 3-12 standards using the WT5000 precision power analyser. Users can easily set the conditions and output the test report without any specialised knowledge. Although a power analyser can analyse the

power efficiency, it is optimised for accuracy of power reading rather than capturing the detail of waveforms. The ScopeCorder can capture the switching waveform with high-speed sampling and high resolution, but this requires correlating the data between the ScopeCorder and the power analyser. The IS8000 simultaneously provides both the precise power analysis and the accurate waveform. Another application is motion analysis using

video and sensor signals of processes and events such as combustion, cutting and vibration. Some mechanical motions are controlled by or closely related to electrical signals and both video images and signal waveforms may be needed to adjust all machine parameters. High speed camera and DAQ systems share

the trigger signal only, meaning that video image and waveform data are captured individually. The IS8000 synchronises with each instrument at any point in time, allowing physical events to be matched exactly to waveform timings.


okogawa Test & Measurement has introduced an integrated software platform that synchronises the

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