It could then either decimate the data or zero pad the data as needed. Instead, I'd like to have the ability to choose a bin width and have it set the sample size. Currently, you have to set the sample size and then interpret what your frequency bin width will be based upon the FFT setup. I'd like to see a little more automation in the FFT setup. Even so, the WaveSurfer 3000 generates a clear FFT of the incoming signal. There is enough screen space that labels could be applied to the axis without diminishing what you want to see. Interpreting the FFT can be a bit challenging if the signal gets busy. For example, I'd like to see improved labeling. There are a few small things that can be improved in the way the FFT is implemented in the WaveSurfer 3000. This Screen shot shows a poorly zoomed 40 MHz signal from the Red Pitaya and the FFT confirming that the signal is indeed 40 MHz (10 MHz per horizontal division). Configuring them required just a few taps of the screen.įigure 4. The WaveSurfer provides a variety of windowing functions. Getting the basic FFT running was relatively painless. FFTs can be valuable, especially when trying to debug noise problems. With this, you set it up and leave.įor an initial test of the WaveSurfer 3000 math functions, I sent a 40 MHz sine wave from my Red Pitaya to the WaveSurfer and test some of the math functions, the first being FFT (fast Fourier transform) shown in Figure 4. No longer does the engineer or technician need to be recording many signal captures to hope to try and find a needle in a haystack. This can be great for finding intermittent faults. This window can then be used to trigger a signal capture once the signal falls out of this window. One of the smart-trigger functions lets you use a predefined window that was created from a previously recorded in-tolerance signal. Trigger configuration menu showing the various features that can be used for triggering the signal capture. Though, for those that are more “old fashion” they will be happy to know that there is still a physical knob that lets you set the trigger level.įigure 3. I tested this feature extensively and found it to be a nice, robust feature. There is a feature that allows the device to attempt to select a trigger level automatically for you. Here you can choose the source of your trigger, such as external triggers, edge detection method, and others. It can be configured using the dials and buttons, but it was much easier to just tap on the lower right corner of the screen to bring up the trigger configuration menu ( Figure 3 ). One of the things that immediately impressed me was the easy trigger setup. After that, the next step was to connect my Red Pitaya's output to the input of the WaveSurfer. Without reading the manuals, I started the oscilloscope and calibrated the probes, which seemed like a good first step. Test setup (From left to right): Laptop for any necessary manual reference, WaveSurfer 3054 with all 4 analog probes attached, Dell Venue 8 Pro for interfacing with the Red Pitaya in the foreground.īecause Teledyne LeCroy is touting this “simple to use” interface, I stopped reading the literature. In keeping with the beach theme, Teledyne LeCroy calls this interface Maui.įigure 2. It both allows the touchscreen fans to accomplish their tasks using touch, while allowing more seasoned users still interact with the physical interfaces of knobs and buttons. This touchscreen has enabled a hybrid interface that allows the mixed use of touch, knobs, and buttons. or larger than the other two products and it has a touchscreen (a feature that is not offered on either of the competitor’s products). What really makes this scope stand apart is the user interface. Each of these scopes are also mixed-domain scopes, though there is a distinct difference between the WaveSurfer 3000 and the competition. The WaveSurfer 3000 competes with both the Tektronix MDO3000 and the Keysight Technologies InfiniiVision 3000 X-Series oscilloscopes. Teledyne LeCroy needed to differentiate itself in the market. To complement the analog and digital inputs, there is a single channel, 25 MHz function generator. Along with the 2-4 channel analog inputs, there is also a 16-channel digital input that can be paired with device's ability to decode a wide variety of digital signal formats. The family spans the 200 MHz to 500 MHz range. WaveSurfer 3000 showing digital signal decoding.Įach member of WaveSurfer 3000 family is a multifunction test tool.
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