Types of sweeps, Electrical Engineering

Assignment Help:

There are four basic types of sweeps:

(a)                                Free Running or Recurrent Sweep: in the free running or recurrent sweep, the sawtooth waveform is repetitive. A new sweep is started immediately after the previous sweep is terminated and the circuit is not initiated by any external signal.

(b)                                Triggered Sweep: A waveform to be observed on the CRO may not be periodic by may perhaps occur at irregular intervals. In this case, it is desirable that the sweep circuit remain in-operative and the sweep be initiated by the waveform under examination under examination. In some cases the waveform may be periodic, but it may be that the interesting part of the waveform is of a very short duration compared to the period of the waveform. Under such cases a triggered sweep is used. In triggered sweep or single sweep, the spot is swept once across the screen in response to a trigger signal. The triggered sweep is used for examination of transients or one time signals and the waveform is photographed for record. The trigger can be obtained from the signal under investigation or by an external source.

(c)                                Driven Sweep: In most cases, a driven sweep is used where the sweep is recurrent but trigged by the signal under test.

(d)                                Non saw-tooth Sweep:  for some application like comparison of two frequencies or for finding phase shift between two voltages, non sawtooth sweep voltages are utilized for the sweep circuit. Sweep frequencies vary with the type of oscilloscope. A laboratory oscilloscope may have sweep frequency upto several MHz. A simple oscilloscope for audio work has an upper limit of 100 kHz. Most TV services require a sweep voltage frequency upto 1 MHz.

 

 


Related Discussions:- Types of sweeps

3-phase 120 degree mode vsi , 3-phase  120 0 Mode VSI In 1200 mode ...

3-phase  120 0 Mode VSI In 1200 mode VSI each thyristor  conducts for 1200. At a  time only  thyristor  one form  upper  group  and another  form group will conduct.  Only th

Development of PLC- controlled crystallization model, 1.Describe the techno...

1.Describe the technological process of crystallization. 2. Compose the requirements to developed crystallization model.stion..

Define shunt var compensation, Define Shunt VAr Compensation? Shunt cap...

Define Shunt VAr Compensation? Shunt capacitors absorb leading VArs (i.e. they are used to supply lagging VArs) whereas reactors are used to absorbs lagging VArs. Capacitors an

Lica, advantages of constant current bias

advantages of constant current bias

Explain continuous-data and discrete-data systems, Q. Explain Continuous-da...

Q. Explain Continuous-data and discrete-data systems? A continuous-data system is one in which the signals at various parts of the systemare all functions of the continuous-tim

Evaluate the travel time of signal, Suppose that the length of a 10Base-5 ...

Suppose that the length of a 10Base-5 cable is 2500 metres. If the speed of propagation in a thick co-axial cable is 60% of the speed of light, how long does it take for a bit to

Signals, Using the audiorecorder() function in MATLAB, make a recording of ...

Using the audiorecorder() function in MATLAB, make a recording of your voice. Use a sample rate of 8kHz, 16 bits per sample, and aim to record around 2 seconds worth. Quantize th

Working of equalizer circuit, Q. Working of Equalizer circuit? Equalize...

Q. Working of Equalizer circuit? Equalizer circuit: Equalizers are combination of passive components (capacitors, resistors and so on) that are used to regulate the amplitude a

Serial input output ports , Serial Input output Ports For serial  inpu...

Serial Input output Ports For serial  input  and output  there are  two pins  in 8085 microprocessor

Technology options for metering, Technology Options for Metering Energ...

Technology Options for Metering Energy meters classically consist of an energy measurement apparatus for measuring energy consumption and a gauge in which is visible outside t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd