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Time Scaling on Oscilloscope and function generator to triangular wave

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Electrical Engineering

Time Scaling on Oscilloscope

and function generator to triangular wave

Answer & Explanation Solved by verified expert
4.5 Ratings (638 Votes)
A time base generator or timebase is a special type of function generator an electronic circuit that generates a varying voltage to produce a particular waveform Time base generators produce very high frequency sawtooth waves specifically designed to deflect the beam in cathode ray tube CRT smoothly across the face of the tube and then return it to its starting position Time bases are used by radar systems to determine range to a target by comparing the current location along the time base to the time of arrival of radio echoes Analog television systems using CRTs had two time bases one for deflecting the beam horizontally in a rapid movement and another pulling it down the screen 60 times per second Oscilloscopes often have several time bases but these may be more flexible function generators able to produce many waveforms as well as a simple time base DescriptionEdit A typical oscilloscope with a time base controlled on the top dial and the amplification of the signal on the bottom dial A cathode ray tube CRT consists of three primary parts the electron gun that provides a stream of accelerated electrons the phosphorcovered screen that lights up when the electrons hit it and the deflection plates that use magnetic or electric fields to deflect the electrons inflight and allows them to be directed around the screen It is the ability for the electron stream to be rapidly moved using the deflection plates that allows the CRT to be used to display very rapid signals like those of a television signal or to be used for radio direction finding see huffduffThe electrons are fired from cathodeCathode is heated up with power supply and electrons as fired through themThe electrons flow is controlled by control gridIt is type of regulator for flow of electrons Many signals of interest vary over time at a very rapid rate but have an underlying periodic nature Radio signals for instance have a base frequency the carrier which forms the basis for the signal Sounds are modulated into the carrier by modifying the signal either in amplitude AM frequency 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 of deflection plates normally the X axis while the amplified output of the radio signal is sent to the other axis normally Y The result is a visual recreation of the original waveform Use in    See Answer
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