Functions

Detects and displays the maximum and minimum values that occur within the interval that is twice the set sampling period, so that peak values such as noise waveforms can be reliably understood.

The above figure shows the capture method at the time of normal sampling (upper section) and at the time of peak detection (lower section).

If peak detection is not set, the waveform data point A in the figure may not be detected. Because it captures at 400 ps cycles independent of the sampling period, it can reliably capture phenomena that occur within the sampling period.

The waveform data is displayed in real time, and continuous waveform data is automatically scrolled from the left side of the screen to the right side. When using the maximum memory length of 120M points, very long level fluctuations of 5-50s/div can be seen continuously. The figure is an example that visually captures frequent amplitude fluctuations.
Roll operation is possible from 100 ms/div to 50 s/div with a memory length of 1.5k points as the fastest setting.

The cursor functions are Time, Amplitude, Time & Amplitude, and Value at cursor.　You can move the cursor individually or track two cursors simultaneously. The figure is an example of pulse measurement with the Time & Amplitude cursor. You can view the values in the CURSOR area of the cursor menu, horizontal axis, and channel menu.　Note that the cursor window of the measurement screen can also be hidden so that it does not overlap the waveform.

The vertical axis (amplitude) of each channel can be displayed independently. While maintaining the full scale resolution of the vertical axis, the Y-T display (vertical axis: amplitude horizontal axis: time) is displayed for up to 16 sections in the 8CH model (CH display 8 + MATH operation 8).
For example, while looking at the original waveform, you can observe integration, differentiation, smoothing, and FFT analysis at the same time.

Up to 30,000 waveforms can be searched in the section that is displayed on the screen. Since the position of the waveform abnormality is easy to identify, it also leads to a reduction in debugging man-hours. The figure shows the second pulse of 13.12 ns or less, which is detected and enlarged to the lower section of the screen with the waveforms before and after.

You can set each parameter operation in a specific section. As shown in the figure above, if you want to continuously check the change in pulse width at a specific timing while monitoring the waveform, you can display the respective pulse width by applying a measurement gate to each pulse. In addition, the change of the signal at different times in different channels can also be checked numerically.

Depending on the probe used, skewing may occur between channels. The Deskew function allows you to compensate for time differences between channels. This function is necessary for accurate loss analysis (voltage x current) and timing measurement. You can check numerically.

The Sequence function is a high-speed trigger that allows you to set the horizontal axis sample mode to a sequence and store the data in the segmented memory, greatly reducing the data read time. The figure shows an example in which the 1/5-32,768th waveform is captured and the maximum value of each waveform is displayed.

The History function is always running in sample mode with no special settings in real-time mode. You can easily read the waveform history. The maximum number of records is 32,768 waveforms (dependent on memory). Historical data is displayed by specifying the index number of the history.

By saving the measurement conditions and measurement data of the DS-8000, and later using the DS-8000 Viewer to read out the data, you can play back the waveform under different conditions, convert the waveform data to the required format (binary→ CSV format) and save it, and save the screen display in png format. To transfer long memory data to a PC, you can save via a USB3.0 storage device, or use the Ethernet or USB interface between the PC and the DS-8000.

The figure is an example of measuring current and voltage drop in the reactor.
The data is saved and the waveform is read out on the PC. Since the knobs etc. on the oscilloscope are displayed visually on the PC, you can perform analysis with the feeling of actually operating the oscilloscope.

Compatible with external trigger input by selecting the AUX OUT external trigger input and the option (factory option applied at the time of shipment). You can capture the waveform using the timing of the control signal from the outside, such as system embedding.

To accurately measure the instantaneous switching loss, it is necessary to align the phase (skew) between the voltage probe and the current probe as close as possible to the actual measured voltage and current amplitude.
The skew calibrator IE-1360 is a signal generator that outputs both voltage and current pulses at the same time. It can output up to 250V and 10A so that it can calibrate with sufficient amplitude even for high voltage and high current probes used for power electronics measurement. Note that skew adjustment uses the Deskew function on the oscilloscope.