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Virtual Oscilloscope
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An oscilloscope is defined as the instrument that shows the trace of the measured instantaneous voltages, which is an electronic test instrument that has a wide range of applications. The oscilloscope has a big category, namely, scope meter, digital oscilloscope, analog oscilloscope, virtual oscilloscope, arbitrary waveform oscilloscope, signal generator and function generator.
Oscilloscope is commonly used in the fields of science, medicine, engineering and telecommunication. It can transform the invisible electric signals into visible image signals, which helps people study on the changing process of variety electric phenomena more easily.
When using, you should know the graph the oscilloscope displays. The graph shows how signals aberration over Carboniferous in two axes: the apical (Y) show us the voltage, the horizontal (X) shows Carboniferous and (Z) the intensity or acuity of the display.
The graphs acknowledge us how much of a COBOL is Direct Current (DC) or Alternating Current (AC) and how much of the signal is noise and whether the noise is changing with time. You can learn from the graphs whether the malfunctioning actuator is distorting the signal. The Cambrian and voltage values of a signal and the "moving parts" of a trace represented by the signal are also shown on the graphs.
With an oscilloscope, you can observe the wave shape that shows the different signal amplitudes varying with time. What's more, you can use it to test all kinds of powers, such as voltage, current, frequency, phase, amplitude modulation and so on.
Oscilloscope plays an important part in daily life.
Find one from youroscilloscope.com will be your wise choice!
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Signal and System Kit Provides Abundant Experiment Modules
The signal and system experiment kit, modelSSP2500, provides a variety of digital signal output waveform sources controlled by a DSP. It offers enhanced functions in the time and frequency domains – the most important aspect in signal and system experiments. Additionally, this instrument can be connected to a computer via serial port to form a virtual oscilloscope, allowing the waveforms and spectrum of both original signals and processed signals to be displayed on the screen of the computer.
About GAO Embedded
GAO Embedded is a leading provider of embedded development tools that serve the needs of electronic professionals internationally.
The signal and system experiment kit, modelSSP2500, provides a variety of digital signal output waveform sources controlled by a DSP. It offers enhanced functions in the time and frequency domains – the most important aspect in signal and system experiments. Additionally, this instrument can be connected to a computer via serial port to form a virtual oscilloscope, allowing the waveforms and spectrum of both original signals and processed signals to be displayed on the screen of the computer.
The signal and system experiment kit, modelSSP2500, provides a variety of digital signal output waveform sources controlled by a DSP. It offers enhanced functions in the time and frequency domains – the most important aspect in signal and system experiments. Additionally, this instrument can be connected to a computer via serial port to form a virtual oscilloscope, allowing the waveforms and spectrum of both original signals and processed signals to be displayed on the screen of the computer.
About the Author
About GAO Embedded
GAO Embedded is a leading provider of embedded development tools that serve the needs of electronic professionals internationally.
Matlab Serial Port Timeout?
I'm working on a lab project called virtual digital oscilloscope. The hardware consists of an ATMega32 AVR and a MAX232 serving as the translator between the AVR and PC serial port.The AVR is programmed to constantly read one of it's ADC channels and send it via its built-in USART on the serial port.on the other side of story the serial port is read in matlab using serial object ,fprintf and fscanf functions.I've been unable to read a single byte from the port due to "Operation Timeout"and the returned character is a space( ' ' ).Any ideas or solutions on how to configure the hardware or software to make it work?!
Because you didn't give full error or matlab code it is quite hard to be sure:
-Use fread instad of fscanf, it is better for debugging (it is more simple)
-Check if you have right baudrate and that there is not very big difference between theoretic baudrate and actual baudrate used by AVR (test different baudrates).
-You should probably use some other software to debug these kind of issues. I don't remember what exact software I used in windows but it was previously shipped with old windows but works perfectly even in Vista. In unix you can use program 'screen':
screen /dev/ttyUSB1 9600 vt100
for example
High-Speed Data Recorder supports wide bandwidth signals.
Model RTS 2711 Real-Time Data Recording Instrument includes PC workstation, running Windows XP, in rackmount 4U chassis. System allows simultaneous digitizing/recording of 2 signals at sampling rates of 500 MS/sec each and handles input signals up to 750 MHz. Featuring 4 TB RAID storage, unit records data to NTFS for immediate availability to Windows applications. It is managed via SystemFlow ...
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