Oscilloscope - Revision history

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Brief overview

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An '''oscilloscope''' is a piece of [[electronic]] test equipment, used for observing the [[voltage]] of an incoming [[signal]] as a function of time; it can be used to observe the behaviour of both [[analog]] and [[digital]] [[circuit]]s. It allows the observer to see the waveforms present in the circuit as it operates; it is also used for [[debug]]ging equipment which has developed a fault. They are actually very old devices, preceding by some decades the first [[computer]]s; before them, they were used on analog equipment (such as [[radar]]s).

The first generations were built around a [[cathode ray tube|CRT]]; it displayed a point, formed by a single [[electron]] beam. Analog circuitry repetitively swept the beam across the face of the tube horizontally, and [[amplifier]]s used the input [[signal]] to deflect the beam vertically.

Devices with the functionality of an oscilloscope (i.e. they display the waveform of an incoming signal) still exist, but they are mostly completely different internally, now being principally digital, internally. Modern ones are similar to a [[logic analyzer]], in that the incoming signal is sampled, and the samples stored, and displayed on an [[Light Emitting Diode|LED]] or [[LCD]] screen. The only difference from a logic analyzer is that a [[analog-to-digital converter]] is the first stage of processing of the input signal, so many more values of the input data are possible.

[[Categories: Electronics]]

← Older revision		Revision as of 18:19, 4 November 2025
Line 5:		Line 5:
	Devices with the functionality of an oscilloscope (i.e. they display the waveform of an incoming signal) still exist, but they are mostly completely different internally, now being principally digital, internally. Modern ones are similar to a [[logic analyzer]], in that the incoming signal is sampled, and the samples stored, and displayed on an [[Light Emitting Diode\|LED]] or [[liquid-crystal display\|LCD]] screen. The only difference from a logic analyzer is that a [[analog-to-digital converter]] is the first stage of processing of the input signal, so many more values of the input data are possible.		Devices with the functionality of an oscilloscope (i.e. they display the waveform of an incoming signal) still exist, but they are mostly completely different internally, now being principally digital, internally. Modern ones are similar to a [[logic analyzer]], in that the incoming signal is sampled, and the samples stored, and displayed on an [[Light Emitting Diode\|LED]] or [[liquid-crystal display\|LCD]] screen. The only difference from a logic analyzer is that a [[analog-to-digital converter]] is the first stage of processing of the input signal, so many more values of the input data are possible.

−	[[Category: ~~Electronics~~]]	+	[[Category: Test Equipment]]

@@ Line 3: / Line 3: @@
 The first generations were built around a [[cathode ray tube|CRT]]; it displayed a point, formed by a single [[electron]] beam. Analog circuitry repetitively swept the beam across the face of the tube horizontally, and [[amplifier]]s used the input [[signal]] to deflect the beam vertically.
-Devices with the functionality of an oscilloscope (i.e. they display the waveform of an incoming signal) still exist, but they are mostly completely different internally, now being principally digital, internally. Modern ones are similar to a [[logic analyzer]], in that the incoming signal is sampled, and the samples stored, and displayed on an [[Light Emitting Diode|LED]] or [[LCD]] screen. The only difference from a logic analyzer is that a [[analog-to-digital converter]] is the first stage of processing of the input signal, so many more values of the input data are possible.
+Devices with the functionality of an oscilloscope (i.e. they display the waveform of an incoming signal) still exist, but they are mostly completely different internally, now being principally digital, internally. Modern ones are similar to a [[logic analyzer]], in that the incoming signal is sampled, and the samples stored, and displayed on an [[Light Emitting Diode|LED]] or [[liquid-crystal display|LCD]] screen. The only difference from a logic analyzer is that a [[analog-to-digital converter]] is the first stage of processing of the input signal, so many more values of the input data are possible.
 [[Category: Electronics]]

← Older revision		Revision as of 18:19, 27 August 2024
Line 5:		Line 5:
	Devices with the functionality of an oscilloscope (i.e. they display the waveform of an incoming signal) still exist, but they are mostly completely different internally, now being principally digital, internally. Modern ones are similar to a [[logic analyzer]], in that the incoming signal is sampled, and the samples stored, and displayed on an [[Light Emitting Diode\|LED]] or [[LCD]] screen. The only difference from a logic analyzer is that a [[analog-to-digital converter]] is the first stage of processing of the input signal, so many more values of the input data are possible.		Devices with the functionality of an oscilloscope (i.e. they display the waveform of an incoming signal) still exist, but they are mostly completely different internally, now being principally digital, internally. Modern ones are similar to a [[logic analyzer]], in that the incoming signal is sampled, and the samples stored, and displayed on an [[Light Emitting Diode\|LED]] or [[LCD]] screen. The only difference from a logic analyzer is that a [[analog-to-digital converter]] is the first stage of processing of the input signal, so many more values of the input data are possible.

−	[[~~Categories~~: Electronics]]	+	[[Category: Electronics]]