Doppler effect

Noun

Meaning

change in the apparent frequency of a wave as observer and source move toward or away from each other

Synonyms

Hypernyms

Examples

Any component of target velocity perpendicular to the line of sight cannot be determined by using the Doppler effect alone, but it can be determined by tracking the target's azimuth over time. Source: Internet

Doppler effect main Frequency shift is caused by motion that changes the number of wavelengths between the reflector and the radar. Source: Internet

Atoms traveling towards a laser light source perceive a doppler effect tuned to the absorption frequency of the target element. Source: Internet

Doppler effect of water flow around a swan main The Doppler effect (or the Doppler shift) is the change in frequency of a wave (or other periodic event) for an observer moving relative to its source. Source: Internet

Doppler A Doppler stethoscope is an electronic device that measures the Doppler effect of ultrasound waves reflected from organs within the body. Source: Internet

Doppler effect main Doppler effect, yellow (~575 nm wavelength) ball appears greenish (blueshift to ~565 nm wavelength) approaching observer, turns orange (redshift to ~585 nm wavelength) as it passes, and returns to yellow when motion stops. Source: Internet

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