Meaning & use
oscilloscope
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Meanings
nouncountabletechnical
A piece of electronic equipment that draws a graph showing how a voltage or other signal changes over time.
Grammar: Countable: you can say an oscilloscope, two oscilloscopes. Often shortened to 'scope' by engineers.
Patterns
- connect a signal to an oscilloscope
- read a waveform on an oscilloscope
- an oscilloscope displays something
The technician connected the probe to the oscilloscope and watched the waveform grow.
With an oscilloscope you can see the exact shape of the pulse, not just its average voltage.
Students in the electronics lab learn to trigger an oscilloscope correctly before taking measurements.
nouncountablemedicaltechnical
A screen-based instrument used in medicine to show electrical activity such as heart rhythm.
Grammar: Countable; in hospitals the word is often shortened to 'scope' or replaced by 'monitor'.
Patterns
- an oscilloscope shows a heartbeat
- monitor a patient on an oscilloscope
The older ward still had an oscilloscope beside each bed to display the heart rhythm.
Nurses watched the oscilloscope for any change in the patient's breathing pattern.
Word forms
| plural | oscilloscopes |
|---|
Common combinations
- digital oscilloscope
- A digital oscilloscope converts the signal into numbers before drawing it.
- cathode-ray oscilloscope
- Early labs used a cathode-ray oscilloscope with a green glowing screen.
- oscilloscope probe
- He replaced the broken oscilloscope probe before starting the test.
- oscilloscope screen
- The oscilloscope screen showed a clean sine wave.
- on the oscilloscope
- The fault was easy to spot on the oscilloscope.
Synonyms and how they differ
- scope
- Informal short form used by engineers and technicians; it means the same thing but is too casual for a formal report.
- monitor
- A general word for a screen that tracks a signal or a patient; it is broader and does not necessarily draw a waveform.
- waveform analyzer
- A more specialized instrument that studies the shape of signals in detail; it is not the everyday word for a classroom oscilloscope.
Word family
- oscilloscope noun
- The instrument itself; related words below come from the same root.
- oscillate verb
- To move or swing regularly back and forth, or (of a signal) to rise and fall repeatedly.
- oscillation noun
- A regular movement back and forth, or one complete cycle of a repeating signal.
- oscillator noun
- A circuit or device that produces a regularly repeating electrical signal.
Commonly confused: oscilloscope or multimeter? oscilloscope or telescope?
oscilloscope vs multimeter
A multimeter gives single numbers such as volts or ohms; an oscilloscope shows how the signal changes moment by moment as a graph.
oscilloscope vs telescope
Telescope looks and sounds similar but means an instrument for viewing distant objects, not electrical signals.
Practice
An engineer wants to see the exact shape of a signal changing over time. Which instrument should she use?
Choose one answer.
An oscilloscope draws the signal as a waveform over time, which is exactly what shows its shape. A multimeter and a voltmeter give only single numbers, and a thermometer measures temperature.
Make it your own
Write a sentence using “oscilloscope”, then check it and compare it with the examples above.