Block Diagram Dso
Below drawn is the block diagram of a dso.
Block diagram dso. In an oscilloscope the crt generates the electron beam which are accelerated to a high velocity and brought to focus on a fluorescent screen. As we can see from the above figure above a cro employs a cathode ray tube crt which acts as the heart of the oscilloscope. Block diagram of digital storage oscilloscope dso video lecture of oscilloscope chapter in subject electronic instrumentation and measurement for electrical electronics extc instrumentation. In dso the waveform to be stored is digitized stored in a digital memory and retrieved for display on the storage oscilloscope.
Ch 1 ch 2 ch 3 ch 4 menu. The figure below shows the block diagram of a general purpose cro. As the data in memory is stored in digital form the signal is reconstructed in analog form in order to be displayed on the screen of crt. The resulting waveform is then passed to the analogue to digital converter adc.
A basic block diagram of a conventional dso can be seen in fig 1. This provides functions like attenuation gain ac dc coupling and impedance matching etc. Selects vertical scale factors. In this method the waveform to be stored is digitized stored in a digital memory and retrived for display on the storage oscilloscope.
A digital storage oscilloscope digitises the input signal so that all subsequent signals are digital a conventional crt is used and storage occurs in electronic digital memory the figure below shows a constructional block diagram of a basic digital storage oscilloscope the input signal is. It consists of data acquisition storage and data display blocks. Basic block diagram of a generic digital oscilloscope. The figure below shows the block diagram of the digital storage oscilloscope here the crt employed in the circuit displays the data stored in the electronic digital memory.
The block diagram of digital storage oscilloscope is shown in above figure. Displays the vertical menu selections which move the waveform vertically. When the resulting voltage crosses a threshold set by. Digital storage oscilloscope dso working principle.
Block diagram of dso. The analogue signal being monitored is fed into a pre amp which changes it s amplitude so that it falls within the input range of the analogue to digital converter adc and the trigger detector. Front panel of dso. Adjust the horizontal position of waveform.
Volts div ch 1 ch 2 ch 3 ch 4.