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learn:instrumentation:tutorials:analog-discovery-studio-spectrum-analyzer [2019/06/10 20:54] – [3. Spectrum Analyzer User Interface Overview] Arthur Brown | learn:instrumentation:tutorials:analog-discovery-studio-spectrum-analyzer [2023/02/13 22:36] (current) – Arthur Brown | ||
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- | ======Using the Spectrum Analyzer (Under Construction)====== | + | ======Using the Spectrum Analyzer (Redirect) ====== |
- | {{: | + | ~~REDIRECT>test-and-measurement: |
- | + | ~~NOSEMANTIC~~ | |
- | ===== Introduction ===== | + | {{tag>redirect}} |
- | This guide explains the use of the // | + | |
- | ---- | + | |
- | ===== Prerequisites ===== | + | |
- | * A Digilent Test & Measurement Device with Analog Input and Output Channels | + | |
- | * A Computer with WaveForms Software Installed | + | |
- | + | ||
- | ---- | + | |
- | + | ||
- | ==== 1. Opening the Spectrum Analyzer==== | + | |
- | + | ||
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | == 1.1 == | + | |
- | Plug in your Test & Measurement Device, then start WaveForms and make sure your device is connected. | + | |
- | + | ||
- | If no device is connected to the host computer when WaveForms launches, the **Device Manager** will be launched. Make sure that the device is plugged in and turned on, at which point it will appear in the Device Manager' | + | |
- | + | ||
- | **Note:** //" | + | |
- | + | ||
- | **Note:** //The Device Manager can be opened by clicking on the " | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group>< | + | |
- | == 1.2 == | + | |
- | Once the Welcome page loads, in the instrument panel at the left side of the window, click on the **Spectrum** button to open the //Spectrum Analyzer// instrument. | + | |
- | </ | + | |
- | {{ : | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | == 1.3 == | + | |
- | Once the // | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | </ | + | |
- | </ | + | |
- | + | ||
- | ---- | + | |
- | ==== 2. Using the Spectrum Analyzer==== | + | |
- | + | ||
- | //This section walks through setting up the Spectrum Analyzer tool to analyze the frequency response of a simple signal.// | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | == 2.1 Hardware Setup == | + | |
- | In order to measure a signal with the // | + | |
- | + | ||
- | Connect the Test & Measurement Device>' | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | == 2.2 Input Signal == | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | With the loopback circuit set up, a signal must now be applied to the analog output pins. WaveForms' | + | |
- | + | ||
- | From the // | + | |
- | + | ||
- | For more detail on how to use the //Wavegen// instrument, please see the [[learn: | + | |
- | + | ||
- | Return to the // | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | == 2.3 Begin Capturing Data == | + | |
- | Click the Run button ({{: | + | |
- | + | ||
- | Since analog input channel 2 was left " | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | == 2.4 Plot Pane Axes == | + | |
- | By default, the plot vertical axis units are decibel volts (dBV) from -200dBV to 0dBV and the horizontal axis is frequency from 0MHz to 1MHz. To change these values, use the Control Bar located above the plot plane or the Configuration Panel located to the right of the plot plane which are discussed in subsequent sections. With the Spectrum tool running, the plot should show a large " | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | == 2.5 Quick Measure Cursors == | + | |
- | To take a quick measurement | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | ====3. Spectrum Analyzer User Interface Overview==== | + | |
- | //This section describes the various controls present in the // | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | ==3.1 Control Bar== | + | |
- | The Control Bar is located above the plot plane. Located on the left side of the Control Bar, the Single and Run control buttons will start measurements with either a single acquisition or a continuous acquisition, | + | |
- | + | ||
- | Several fields, to the right of the control buttons, can be used to configure the algorithm used to determine the spectral composition of the sampled waveform. By default, the " | + | |
- | + | ||
- | Additional configuration options can be found by clicking on the drop down arrow to the right of these fields. These options include alternate Center/Span frequency range configuration parameters, Logarithmic/ | + | |
- | + | ||
- | Clicking on the gear button allows the user to select the acquisition algorithm (FFT or CZT). | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | ==3.2.1 Configuration Pane - Magnitude== | + | |
- | To the right of the plot is the Configuration Pane. | + | |
- | + | ||
- | In the Magnitude section of the Configuration Pane, the plot's vertical axis units and range can be changed by selecting a value out of the particular field' | + | |
- | + | ||
- | /* Gear button has no relevant options? */ | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group>< | + | |
- | ==3.2.2 Configuration Pane - Range== | + | |
- | The " | + | |
- | </ | + | |
- | {{ : | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | ==3.2.3 Configuration Pane - Channel Options== | + | |
- | Clicking on the Channel Options options button opens a menu that allows the user to configure the analog input channels and trigger condition. The voltage offset, voltage range, attenuation, | + | |
- | + | ||
- | The " | + | |
- | /* Cross Triggering */ | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | ==3.2.4 Configuration Pane - Traces== | + | |
- | Below the " | + | |
- | + | ||
- | By default, Trace 1 and Trace 2 correspond to analog input channel 1 and analog input channel 2, respectively. To change the Trace' | + | |
- | + | ||
- | The Type dropdown is used to select the how and when the acquired data is updated, including various kinds of averaging schemes, by default the trace is updated whenever new data is captured. | + | |
- | + | ||
- | The gear icon in the top right of the Trace window can be used further configure the Trace, with color, name, label, and windowing technique options. To remove a Trace, click the red X to the right of the gear icon. | + | |
- | + | ||
- | Additional Traces can be added to the //Spectrum Analyzer// instrument by clicking on the "Add Trace" button. Adding a " | + | |
- | + | ||
- | For more information on Trace configuration, | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | == 3.3 Plot Pane == | + | |
- | The Plot pane displays the spectrogram, | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | Capture status information can be found next to the channel select buttons, including a state string (Stop / Runnning). Information about the capture being displayed can be found to the right of the channel select buttons, including the sample rate, and timestamp for the latest capture (when the instrument is stopped). | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | Another set of buttons can be found in the upper right corner of the plot pane. The two "Quick Measure" | + | |
- | + | ||
- | The gear button next to the previous five buttons can be used to change how the plot is displayed, including adding labels, changing the background between light and dark, and others. For more information on these options, refer to the WaveForms Help menu or Reference Manual. | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | <WRAP group> | + | |
- | <WRAP column half> | + | |
- | Vertical reference cursors can be added to the plot using the " | + | |
- | </ | + | |
- | <WRAP column half> | + | |
- | {{ : | + | |
- | </ | + | |
- | </ | + | |
- | + | ||
- | ---- | + | |
- | <WRAP group>< | + | |
- | The file menu can be used to save or load configurations of the //Spectrum Analyzer// instrument, export acquired data, or close the instrument. | + | |
- | + | ||
- | Saving a project (with or without any acquisitions) allows the user to close WaveForms without losing the instrument configuration. In addition to this, projects can be shared with others to aid in group projects and guided learning. | + | |
- | + | ||
- | Exporting data as an image allows the user to produce a screenshot of the entire //Spectrum Analyzer// instrument. Alternatively, | + | |
- | </ | + | |
- | {{ : | + | |
- | </ | + | |
- | ---- | + | |
- | <WRAP group>< | + | |
- | A wide variety of different view panes can be added to the user interface using the " | + | |
- | * **Time:** Used to view the captured signal in the time domain. | + | |
- | * **Measurements: | + | |
- | * **Components: | + | |
- | * **Cursors: | + | |
- | * **Markers: | + | |
- | * **Logging: | + | |
- | * **Notes:** Creates a text editor pane that can be used to document configuration choices, or whatever other information could be useful to remember. | + | |
- | </ | + | |
- | {{ : | + | |
- | </ | + | |
- | ---- | + | |
- | + | ||
- | ==== Next Steps ==== | + | |
- | + | ||
- | /* | + | |
- | If voltage values seen in the // | + | |
- | */ | + | |
- | + | ||
- | For more guides on how to use the Digilent Test & Measurement Device, return to the device' | + | |
- | + | ||
- | For more information on WaveForms visit the [[reference: | + | |
- | + | ||
- | For technical support, please visit the [[https:// | + | |
- | + | ||
- | {{tag>analog-discovery-studio tutorial}} | + |