Data Acquisition Toolbox
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Data Acquisition Toolbox Connect to data acquisition cards, devices, and modules Data Acquisition Toolbox™ provides functions for connecting MATLAB® to data acquisition hardware. The toolbox supports a variety of DAQ hardware, including USB, PCI, PCI-Express®, PXI, and PXI-Express devices, from National Instruments, Measurement Computing, Advantech, Data Translation, and other vendors. With the toolbox you can configure data acquisition hardware and read data into MATLAB and Simulink® for immediate analysis. You can also send out data over analog and digital output channels provided by data acquisition hardware. The toolbox’s data acquisition software includes functions for controlling analog input, analog output, counter/timer, and digital I/O subsystems of a DAQ device. You can access device-specific features and synchronize data acquired from multiple devices. You can analyze data as you acquire it or save it for post-processing. You can also automate tests and make iterative updates to your test setup based on analysis results. Simulink blocks included in the toolbox let you stream live data directly into Simulink models, enabling you to verify and validate your models against live measured data as part of your design verification process. Key Features ▪ Support for a variety of industry-standard data acquisition boards and USB modules ▪ Support for analog input, analog output, counters, timers, and digital I/O ▪ Direct access to voltage, current, IEPE accelerometer, and thermocouple measurements ▪ Live acquisition of measured data directly into MATLAB or Simulink ▪ Hardware and software triggers for control of data acquisition ▪ Device-independent software interface

Using Data Acquisition Toolbox to acquire an input signal from a data acquisition board directly into MATLAB. The acquired data is displayed simultaneously as a time-domain signal, an instantaneous FFT, and a waterfall plot, making use of MATLAB signal processing and visualization capabilities. Supported Hardware Devices and Vendors Data Acquisition Toolbox supports PC-compatible data acquisition hardware from multiple vendors, including Advantech, Measurement Computing, and National Instruments. The toolbox also supports Microsoft ® Windows® compatible sound cards. In addition, it is...

microphones, current-based sensors, or bridge-based sensors. To facilitate making measurements directly from MATLAB, Data Acquisition Toolbox supports the following measurement types: Voltage — Data from general purpose A/D cards and sound card recording devices Current — Data from current-based sensors, such as 4-20 mA sensors commonly used for process control IEPE accelerometer — Data from IEPE accelerometers that need a constant excitation current source on the same wire on which you measure the acceleration IEPE microphone — Data from IEPE microphones that need a constant excitation...

In either interface, you create device or session objects to provide a gateway to the hardware's functionality and to control the behavior of your acquisition. For example, you can execute any supported analog input task via an analog input object created in MATLAB or Simulink. By adding channels or lines to your device or session object, you can synchronize the collection of your data. The toolbox supports an unlimited number of channels or lines, enabling you to use as many as your hardware permits. Analog Input Analog input functions let you acquire signals from your hardware. You can...

Using SoftScope SoftScope is a graphical tool for selecting and configuring data acquisition sources in MATLAB. You can acquire, view, and analyze data using a familiar, oscilloscope-like interface. Through a library of built-in measurement functions, SoftScope lets you verify hardware operation and perform live data analysis. You can extend SoftScope with your own analysis functions and export data from SoftScope to the MATLAB workspace. SoftScope is available on the 32-bit version of MATLAB only. File Edit Help Channel Scaling Offset Scale Condition: Rising " Two channels of live audio...

■ Number of samples acquired ■ Number of output samples Events may result in one or more callbacks. In MATLAB, these event types execute a MATLAB function that you The session-based interface provides functions for both foreground and background data acquisition. Foreground data acquisition blocks the MATLAB command line; background acquisition does not. Background acquisition enables you to collect data continuously and plot or process the data while you are collecting it. A listener is available to flag session events. When an event occurs, the specified callback function is executed....

Performing Data Acquisition in Simulink Data Acquisition Toolbox provides Simulink blocks for acquiring live or measured data directly into your models, or for configuring hardware interfaced to data acquisition devices. These blocks are only available using the Legacy interface and the 32-bit version of MATLAB. You can use the blocks to quickly evaluate the response of your Simulink models and algorithms with real-world data instead of designing systems against static data sets, such as those saved in files. You can also use the blocks to verify and validate models against live, measured...

ft| Source Block Parameters: Analog Input | £3 | Analog Input Acquire block of data from multiple analog channels of a data acquisition device every simulation time step. Acquisition Mode Asynchronous - Initiates the acquisition when simulation starts. The simulation runs while data is acquired into a FIFO buffer. Synchronous - Initiates the acquisition at each time step. The simulation will not continue until all data is acquired. Device: |winsound 0 (Internal Microphone (Conexant 2) Hardware sample rate (samples/second): SQQQ Actual rate will be S000 samples per second. Input type:...