Components, Electronics & Scientific Guide

What is an Oscilloscope?

It is a quasi artificially composed from the Latin oscillare = rocking and the old Greek skopein = consider.

The oscilloscope is an electronic measuring device which can make several electrical voltages visible at the same time. Of particular interest in these measurements is usually the temporal course or the temporal changes of the voltage curves, which are then brought directly to a small screen. Previously they used picture tubes; today LCDs are used. Sometimes you hear the terms oscillograph, or simply shorter only “Oscar,” “Ozzie” or “scope” in this context. An application example would be an ECG, in which electrodes on the human skin transform the movements of the beating heart into voltage impulses, which can then be visualized via oscilloscope/oscilloscope. Read in the What is the history of the oscilloscope to know more.

Digital oscilloscope functions:

  • Pre-triggering is possible with it. Here, you can wait for a particular event and look at it.
  • Also, the setting will change automatically when an external signal is popped.
  • Also, analysis software is also available on board, with which, for example, the frequency and the rising time can be measured.

Structure and function:

Analog oscilloscopes work with a traditional cathode ray tube, while digital devices with LDC technology work. For digital oscilloscopes, it may be that the display is larger or even colored. For modern digital oscilloscopes, such a representation is no longer a problem for the better differentiation of the channels. While calculating using an oscilloscope, you must know all the necessary things about it.

Since an oscilloscope is of particular interest to the temporal voltage profile, both analog and digital devices display the voltage signal on the one hand, and the electrical current, frequency, phase shifts, throughput characteristics or pulse diagrams, on the contrary. Digital storage oscilloscopes also have the functions of pre-triggering, analysis software for various values, averaging, mathematical functions as well as frequency spectra, statistics, and histograms. Furthermore, in the case of the digital storage oscilloscope (DSO) the view can be increased slightly. Scrolling is also possible.

Analogous vs. Digital oscilloscope?

Digital storage oscilloscopes replace analog devices. For this reason, you should be particularly aware of what your goal is. The digital oscilloscopes now have an increased range of functions as well as smaller displays and can also be used easily on the road. The simultaneous display of several signals is also effortless. Both have different reading techniques and you can know about How to Read an Oscilloscope

For the measurement and analysis of various electrotechnical signals read our How to Use Oscilloscope to Measure Voltage, oscilloscopes have prevailed since the beginning of the twentieth century – then still under the name Galvanometer. The word oscilloscope consists of the old Greek skopein (consider) and the Latin oscillate (rocking). High-frequency electrical signals from TVs, radios, and computers are easily visualized with these devices, and the digital oscilloscopes have almost entirely replaced the analog variant of the market. Other types of oscilloscopes are CCD oscilloscope, mixed-signal oscilloscope or the somewhat more particular waveform monitor (WFM) from the field of video technology.

Advantages of Digital Oscilloscope

  • It is smaller in size
  • No longer requires an uneconomical cathode ray tube
  • It is energy-efficient with LCD technology
  • The measurement data are displayed more precisely and better
  • Faster processors with these devices convince
  • Modern digital oscilloscopes with more great functions for signal analysis work

Disadvantages of Analog Oscilloscope

  • Orthogonal errors
  • Edge Blur
  • Cushioning errors and non-linearity are classic disadvantages
  • Big size of the instrument.

Analog or digital – for which purposes is the oscilloscope suitable?

DSOs are nowadays ideal for high-frequency signals. With these devices, more great functions, signals, and frequencies can be efficiently recorded, stored and analyzed. An analog oscilloscope stores the image instead of the signal on the tube, which is not the case with DSOs.

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