Oscilloscope
Oscilloscope - Related Videos
09:27
RC/RL/LC Circuits
0 Views •
2023
Source: Yong P. Chen, PhD, Department of Physics & Astronomy, College of Science, Purdue University, West Lafayette, IN Capacitors (C), inductors (L), and resistors (R) are each an important circuit element with distinct behaviors. A resistor dissipates energy and obeys Ohm's law, with its voltage proportional to its current. A capacitor stores electrical energy, with its current proportional to the rate of change of its voltage, while an inductor stores magnetic energy, with its voltage...
09:47
A Methodological Protocol and Considerations for Transcranial Ultrasonic Stimulation in Exploratory Clinical Human Studies
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2025
Transcranial ultrasonic stimulation (TUS) is a promising non-invasive technique capable of stimulating the human brain at any depth, offering new therapeutic possibilities to treat various neurological conditions. This protocol provides a standardized yet adaptable empirical framework for applying TUS in neurotypical adults and patients with neurological diseases such as stroke.
09:12
Sound Waves and Doppler Shift
0 Views •
2023
Source: Arianna Brown, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA Waves are disturbances that propagate through a material medium or empty space. Light waves can travel through a vacuum and some forms of matter, and are transverse in nature, which means that the oscillations are perpendicular to the direction of propagation. However, sound waves are pressure waves that travel through an elastic medium like air,...
09:11
Neurocircuit Assays for Seizures in Epilepsy Mutants of Drosophila
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Cited by 6 •
2009
Using high frequency electrical stimulation, seizure-like activity can be induced in Drosophila. This activity is easily recorded from the giant fiber system.
09:38
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
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Cited by 4 •
2015
We describe the generation of far-infrared radiation using an optically pumped molecular laser along with the measurement of their frequencies with heterodyne techniques. The experimental system and techniques are demonstrated using difluoromethane (CH2F2) as the laser medium whose results include three new laser emissions and eight measured laser frequencies.
FAQs
The probe transfers the electrical signal to the instrument, while the input circuitry conditions that signal before display. This measurement path matters because the waveform shown for analysis depends on both signal delivery and internal conditioning. Engineers therefore interpret the displayed trace as the result of a complete measurement chain, not as an isolated view of the circuit.
Triggering establishes a consistent reference for displaying a repeating waveform, preventing the trace from appearing unstable or continuously shifting. A stable display makes features such as amplitude, period, rise time, and distortion easier to compare. In engineering diagnostics, this stability helps reveal timing behavior and distinguish genuine circuit characteristics from an unclear presentation.
The time base organizes the horizontal display so voltage behavior can be examined against time. With that relationship visible, engineers can determine period and frequency, assess rise time, and compare the timing of related signals. It also provides the temporal context needed to recognize transients, timing faults, and changes associated with circuit instability.
Waveform shape and timing provide information that a single amplitude value cannot show. Distortion appears as an altered waveform, noise as unwanted variation, and transients as brief changes in behavior. Comparing phase relationships or observing rise time can expose timing and signal-integrity problems, helping engineers investigate faults rather than merely confirm that voltage is present.
An investigation begins by delivering the circuit signal through a probe to the oscilloscope input. The instrument conditions the signal, places it on the voltage-versus-time display, and uses triggering to stabilize repeating behavior. The engineer then examines appropriate waveform features, such as amplitude, frequency, phase, rise time, noise, distortion, or transient response, according to the troubleshooting goal.
A displayed trace can support measurements of amplitude, period, frequency, phase relationships, rise time, and transient behavior. These quantities describe both the signal's magnitude and its timing. Examining them together helps engineers verify expected operation, identify timing faults, evaluate distortion or noise, and investigate instability during circuit design or troubleshooting.
Engineers use the instrument for design verification, where measured waveform behavior is compared with intended circuit operation, and for troubleshooting, where abnormal signals help locate faults. The same observations can expose noise, distortion, timing errors, transients, or instability. This makes the oscilloscope useful both for evaluating a new design and for diagnosing an existing system.
Oscilloscope measurements support work in analog, digital, power, and embedded systems by making signal behavior available for direct examination. The relevant evidence may involve voltage levels, timing, phase, rise time, or transient events, depending on the system. In laboratory learning, these observations also connect electrical theory with measurable circuit behavior and engineering practice.