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| learn:instrumentation:tutorials:analog-discovery-studio-spectrum-analyzer [2019/06/24 20:01] – Arthur Brown | learn:instrumentation:tutorials:analog-discovery-studio-spectrum-analyzer [2020/07/28 17:24] – Arthur Brown | ||
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| - | ======Using the Spectrum Analyzer====== | + | ======Using the Spectrum Analyzer |
| - | {{: | + | |
| - | ===== Introduction ===== | + | <WRAP round important 660px> |
| - | This guide explains the use of the //Spectrum// instrument in WaveForms. This instrument is used to measure different-frequency components of a captured analog input signal. | + | This guide has been replaced by [[learn/instrumentation/tutorials/waveforms-spectrum-analyzer/ |
| - | ---- | + | |
| - | ===== 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 the Test & Measurement Device, then start WaveForms | + | |
| - | + | ||
| - | If no device is connected | + | |
| - | + | ||
| - | **Note:** //" | + | |
| - | + | ||
| - | **Note:** //The Device Manager can be opened by clicking on the " | + | |
| </ | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
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| - | <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. | ||
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| - | === 1.3 === | ||
| - | Once the // | ||
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| - | ==== 2. Using the Spectrum Analyzer==== | ||
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| - | //This section walks through setting up the //Spectrum Analyzer// instrument to analyze a signal in the frequency domain.// | ||
| - | <WRAP group> | ||
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| - | === 2.1 Hardware Setup === | ||
| - | In order to measure a signal with the // | ||
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| - | Connect the Test & Measurement Device>' | ||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
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| - | === 2.2 Input Signal === | ||
| - | <WRAP group> | ||
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| - | 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> | ||
| - | {{ : | ||
| - | </ | ||
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| - | <WRAP group> | ||
| - | <WRAP column half> | ||
| - | === 2.3 Begin Capturing Data === | ||
| - | Click the Run button ({{: | ||
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| - | Since analog input channel 2 was left " | ||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
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| - | <WRAP group> | ||
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| - | === 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 [[learn: | ||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
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| - | <WRAP group> | ||
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| - | === 2.5 Quick Measure Cursors === | ||
| - | To take a quick measurement of the period and frequency of the sine wave, click the Quick Measure: Vertical icon ({{: | ||
| - | |||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
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| - | ---- | ||
| - | ====3. Spectrum Analyzer User Interface Overview==== | ||
| - | //This section describes the various controls present in the // | ||
| - | ---- | ||
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| - | ===3.1 Control Bar=== | ||
| - | The Control Bar is located above the plot plane. The Single and Run control buttons, located on the left side of the Control Bar, will start measurements with either a single acquisition or a continuous acquisition, | ||
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| - | Several fields, to the right of the control buttons, can be used to configure the //Spectrum Analyzer//. By default, the **Frequency Range**, **Start** frequency, and **Stop** frequency fields can be seen. These options also change the x-axis of the plot. | ||
| - | |||
| - | Additional configuration options can be found by clicking on the green down arrow ({{learn: | ||
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| - | Clicking on the Gear button ({{learn: | ||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{: | ||
| - | </ | ||
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| - | <WRAP group> | ||
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| - | ===3.2.1 Configuration Pane - Magnitude=== | ||
| - | To the right of the plot is the Configuration Pane. | ||
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| - | 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' | ||
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| - | /* Gear button has no relevant options? */ | ||
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| - | <WRAP column half> | ||
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| - | <WRAP group>< | ||
| - | ===3.2.2 Configuration Pane - Range=== | ||
| - | The **Range** field, below the Magnitude configuration options, can be used to specify the voltage range for the analog input channels. Selecting larger ranges may reduce the sample resolution. | ||
| - | </ | ||
| - | {{ : | ||
| - | </ | ||
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| - | <WRAP group> | ||
| - | <WRAP column half> | ||
| - | ===3.2.3 Configuration Pane - Channel Options=== | ||
| - | Clicking on the " | ||
| - | |||
| - | The //Trigger// section of the Channel Options menu allows the user to specify a trigger event, around which samples will be captured and analyzed in the plot pane. By default, the instrument is configured to capture and analyze data whenever the signal applied to analog input Channel 1 rises above 0V. | ||
| - | /* Cross Triggering */ | ||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
| - | </ | ||
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| - | <WRAP group> | ||
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| - | ===3.2.4 Configuration Pane - Traces=== | ||
| - | Additional Traces can be added to the //Spectrum Analyzer// instrument by clicking on the "Add Trace" button ({{learn: | ||
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| - | Below the Channel Options and Add Trace buttons are the Trace configurations. | ||
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| - | By default, Trace 1 and Trace 2 correspond to analog input Channel 1 and analog input Channel 2, respectively. To change the Trace' | ||
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| - | The **Type** drop-down is used to select how and when the data is updated, including various kinds of averaging schemes. By default the trace is updated whenever new data is captured. | ||
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| - | 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. | ||
| - | |||
| - | For more information on Trace configuration, | ||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
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| - | <WRAP group> | ||
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| - | === 3.3 Plot Pane === | ||
| - | The Plot pane displays the spectrogram. The horizontal axis of the plot represents the frequencies of measured components. The vertical axis represents the ratio between the input signal' | ||
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| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
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| - | <WRAP group> | ||
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| - | Capture status information can be found next to the channel select buttons, including a state string (Stop / Runnning / Busy). 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> | ||
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| - | Another set of buttons can be found in the upper right corner of the plot pane. | ||
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| - | Two "Quick Measure" | ||
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| - | The Gear button next to these 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 the Reference Manual. | ||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
| - | </ | ||
| - | <WRAP group> | ||
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| - | Normal and delta cursors are accessible by clicking on **X** button/ | ||
| - | </ | ||
| - | <WRAP column half> | ||
| - | {{ : | ||
| - | </ | ||
| - | </ | ||
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| - | ---- | ||
| - | <WRAP group>< | ||
| - | ===3.4 View Menu=== | ||
| - | 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 produces a screenshot of the entire //Spectrum Analyzer// instrument. Alternatively, | ||
| - | </ | ||
| - | {{ : | ||
| - | </ | ||
| - | ---- | ||
| - | <WRAP group>< | ||
| - | ===3.5 View Menu=== | ||
| - | A wide variety of different panes can be added to the user interface using the **View** menu in the toolbar above the Single/ | ||
| - | * //Time:// Used to view the captured signal in the time domain. | ||
| - | * // | ||
| - | * // | ||
| - | * // | ||
| - | * // | ||
| - | * // | ||
| - | * //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}} | + | {{tag>to-be-removed}} |