In oscilloscope triggering, hold-off is a simple concept and is easy to implement. In contrast, delayed sweep is somewhat more obscure as to its. waveform to be brightened when the oscilloscope is operating on a normal time base. • Switching to delayed time base causes the brightened. Delayed time base oscilloscope: In a conventional oscilloscope, the signal to the vertical plates is delayed by sOllle time, using,1 delay line circuit.


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Then time will be a linear measure base on the sweep speed in the screen is time divisions per milliisecond or other time units. You measure the number of divisions on the screen using the etched or displayed scale and can directly determine delayed time base oscilloscope delay time from first event to second event.

The electrons are fired from cathode.


Cathode is heated up with power supply and electrons as fired through them. The electrons flow is controlled by control grid.

How time delay is measured in oscilloscope? - Quora

It is type of regulator for flow of electrons. Many signals of interest vary over delayed time base oscilloscope at a very rapid rate, but have an underlying periodic nature. Radio signals, for instance, have a base frequency, the carrierwhich forms the basis for the signal. Sounds are modulated into the carrier by modifying the signal, either in amplitude AMfrequency FM or similar techniques.


To display such a signal on an oscilloscope for examination, it is desirable to have the electron beam sweep across the screen so that the electron beam cycles at the same frequency as the carrier, or some multiple of that base frequency.

This is the purpose of the time base generator, which is attached to one of the set delayed time base oscilloscope deflection plates, delayed time base oscilloscope the X axis, while the amplified output of the radio signal is sent to the other axis, normally Y.

The result is a visual re-creation of the original waveform.


Use in radar[ edit ] A typical radar system broadcasts a short pulse of radio signal and then listens for echoes from distant objects. As the signal travels at the speed of light and has to travel to the target object and back, the distance to the target can be determined by measuring the delay between the broadcast and reception, dividing the speed of light by that time, and then dividing by two there and back again.

As this process occurs very rapidly, a CRT is used to display the signal and look for the echoes. In the simplest version of a radar displaytoday known as an "A-scope", a time base generator sweeps delayed time base oscilloscope display across the screen so that it reaches one side at the time when delayed time base oscilloscope signal has travelled the radar's maximum effective distance.

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This would be used with a time base generator that pulls the beam across the CRT once every millisecond, starting the sweep when the broadcast signal ends. Any echoes cause the beam to deflect down in the case of CH delayed time base oscilloscope it moves across the display.

By measuring the physical location of the "blip" on the CRT, one can determine the range to the target.

To ensure the blips would line up properly with a mechanical scale, the time base could be adjusted to start its sweep at a certain time.

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