cosmosite.blogg.se - Digital cathode ray oscilloscope

For example, a twelve bit digitizer can resolve one part in 4096. The analog to digital converter used in a digital storage oscilloscope also gives it a higher resolution than an analog oscilloscope(cro).The time base in a digital storage oscilloscope is generated by a crystal clock so that it is more accurate and stable than a CRO, where the time base is generated by a ramp circuit.The digital storage oscilloscope is not, however, capable of functioning in a variable persistence storage mode. Furthermore, it can operate with a constant CRT refresh time, so giving a bright image even at very fast signal speeds.This textbook “ Electrical and Electronics Measurements by S. The digital storage oscilloscope is also capable of an infinite storage time, using its digital memory. The digital storage oscilloscope has a CRT which is much cheaper than an analog storage oscilloscope, making replacement, more economical.

For a dot display C should be about 25, to give an eligible display: for straight line interpolation it should be about 10, and for sinusoidal interpolation, C should be about 2.5.

The value of constant C is dependent on the interpolation method used between the dots.

Aliasing effects also limit the useful storage bandwidth (USB) of the oscilloscope to a value given by the ratio.

The digital storage oscilloscope is primarily limited in speed by the digitising capability of the analog to digital converter.

The advantage of the analog storage oscilloscope(cro) is that it has a higher bandwidth and writing speed than a digital storage oscilloscope, being capable of operating speeds of about 15 GHz.

The following points will make you understand the basic difference between cathode ray oscilloscope and digital storage oscilloscope.

Difference between Cathode Ray Oscilloscope(CRO) & Digital Storage Oscilloscope(DSO): As this is a digital world digital storage oscilloscope has more advantages over analog oscilloscope. We know that cathode ray oscilloscope (CRO ) is an analog oscilloscope. Now here we are going to know the differences between cathode ray oscilloscope(cro) and digital storage oscilloscope(dso).