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

Explain output ce characteristics, Q. Explain output CE characteristics? ...

Q. Explain output CE characteristics? 1. In the active region ic increases slowly as Vce increases. The slope of the curved is greater than the CB output characteristics. In co

Linear and digital ics, write down the application of shift register and ex...

write down the application of shift register and explain it.

Explain memory mapped i/o scheme, Explain Memory Mapped I/O Scheme. Me...

Explain Memory Mapped I/O Scheme. Memory Mapped I/O Scheme: In such scheme there is only one address space. These address space is defined as all possible addresses which m

What do you mean by resistance, Q. What do you mean by Resistance? An i...

Q. What do you mean by Resistance? An ideal resistor is a circuit element with the property that the current through it is linearly proportional to the potential difference acr

Matlab program for niquit, how to write a matlab program for TITO system to...

how to write a matlab program for TITO system to draw nyquit plots.

What do you mean by source encoding, Q. What do you mean by Source Encoding...

Q. What do you mean by Source Encoding? After the quantization of message samples, the digital system will then code each quantized sample into a sequence of binary digits (bit

A synchronous motor with a synchronous reactance , A synchronous motor with...

A synchronous motor with a synchronous reactance of 12 ohms is operating with a current of 100 A at unity power factor supplying power to a large compressor. The phasor diagram for

Ac circuits, introduction for on ac circuits

introduction for on ac circuits

Write short note on common vs associated channel signalling, Q. Write short...

Q. Write short note on Common vs. associated channel signalling. Associated vs. Common channel signalling: Out band signalling suffers from very limited bandwidth. Both a

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