多普勒

Duōpǔlè

proper noun #31,334

Meanings

1 Doppler (Christian Johann Doppler, Austrian physicist)
2 Doppler effect

About Christian Doppler

1803–1853 · 科学家 scientist

Austrian physicist who in 1842 described the Doppler effect, 多普勒效应: a wave's pitch rises as its source comes closer and falls as it moves away. Weather radar and ultrasound scans use it.

Also called 克里斯蒂安·多普勒

Characters

Examples

HSK 6

多普勒效应解释了救护车经过时声音的变化。

Duōpǔlè xiàoyìng jiěshì le jiùhùchē jīngguò shí shēngyīn de biànhuà.

The Doppler effect explains the change in sound when an ambulance passes by.

HSK 7-9

天气预报使用多普勒雷达。

Tiānqì yùbào shǐyòng Duōpǔlè léidá.

Weather forecasts use Doppler radar.

Tips

culture

多普勒 is chosen for sound alone, 多 do + 普 pp + 勒 ler, and Taiwan writes it 都卜勒. Doppler radar is 多普勒雷达, but a hospital Doppler scan is usually just 彩超, 'colour ultrasound', for the coloured blood flow on screen.

Stroke Order

多 duō

普 pǔ

勒 lè

多普勒