Wavesurfer mxs12/28/2023 My measurement showed a difference between min and max of 15 μs. Note that the min and max readouts tend to stay near the mean value of 323 μs until several hundred measurements are accumulated. Press the Clear Sweeps button on the front panel to restart the measurement acquisition. This means that the 20 μs minimum value doesn’t occur with any regularity. The histicon of width, right below the parameter readout, shows a distribution that is centered about the mean value with a rarely occurring outlier with a lower measured value. The width measurement shows a mean of 323 μs with a maximum of 338 μs and a minimum of 20 μs. Viewing parameter statistics and histicons The histicons are iconic histograms which show the distribution of measured values for each displayed parameter. Parameter statistics include the last measured value, the mean, minimum (min), maximum (max), standard deviation (sdev), and the number of measurements included in the statistics (total population). Similarly, Set up P4 to measure the rise time of C1.Ĭlick the check boxes on the right to turn on statistics and Histicons. Go to the P3 setup filed and set up P3 to measure the width of C1. The scope will display parameters P1 (amplitude of C1) and P2 (frequency of C1). Turn on parameter measurements (Measure pull down> Measure Setup>check the Show Table box. We are currently triggering on a signal which is a 1.5 kHz square wave. This tutorial will try to provide methods which will give insight in setting up trigger in the absence of specific knowledge about unknown components within the signals. One of the crucial issues in setting up a trigger is having knowledge of the signal you are trying to trigger on. The Trigger dialog box showing the Trigger Type selections The scope display should be similar to Figure 2. Set Time/Division: 500 s, Select Set Maximum Memory and set Maximum Sample Points to 1MS. Touch or click the Timebase annotation box on the display of the oscilloscope. Press the Normal trigger mode button in the Trigger area on the oscilloscope’s front panel.Press the front panel AutoSetup twice to automatically setup the scope.Verify that the input coupling on channel 1 is DC 1 M: Touch or click the channel 1 annotation box>touch or click on the coupling field >select DC 1M.Connect the probes ground clip to the ground pad shown in Figure 1. Ch2 is the SIG2 signal which contains a glitch and a non-monotonic edge anomaly. Connect the passive probe to Channel 1 of the scope and the probe tip to Ch2 of the WS 100.Select S6 (SIG) of the WaveSource100 using the small pushbutton switch on the circuit board. If the Found New Hardware Wizard appears press the cancel button. Connect the WS 100 to a front panel USB connector.Turn off channel 2 by pressing the 2 button in the Vertical control group on the front panel twice.Recall the default setup: File pull down > Recall Setup> Recall Default. The Signal Outputs Available from the WS 100 Demonstration Signal Sourceĭisplays shown in the tutorial are based on the following initial setup on a WaveSurfer Xs-B series scope: In this tutorial we will use selection S6 (SIG) and the Ch2 output. Table 1 summarizes all the available outputs. There are two sets of duplicate output connections on the WS 100 are marked Ch1, Ch2, and Trig. The WS 100 signal source is a USB powered circuit board which has 6 sets of output waveforms. WaveSource 100 demonstration signal source The WS 100 Demonstration Signal Source Equipment RequirementsĪ LeCroy WaveSurfer Xs-B series oscilloscope. All the triggers are easy to access and easy to set up. The exclusion trigger allows the DSO user to have a maximum chance of capturing rare events by keeping the trigger circuit active nearly 100% of the time. For that situation, LeCroy offers exclusion triggering based on signal timeout, glitch/pulse width, pattern width, or signal/pattern interval. There are also times when an oscilloscope user knows the shape of a typical signal but wants to trigger on abnormal wave shapes. Standard triggers include edge, glitch, width, window, interval (period), drop out, logic pattern, runt, slew rate and multistage cascade and state and edge qualified. LeCroy oscilloscopes includes a powerful set of SMART Triggers that are based on timing and amplitude parameters of the trigger signal.
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