Se basan en el principio de Doppler

Se basan en el principio de Doppler por el cual se sabe que cuando una onda se refleja en una superficie que se está moviendo con res¬pecto al emisor, se produce un desplazamiento en frecuencia que puede medirse para suministrar una medida de la velocidad del movimiento.

Kết quả (Anh) 1:

are based on the Doppler principle whereby it is known that when a wave is reflected in a surface that is moving with respect to the emitter ¬ res, is a shift in frequency can be measured to provide a measure of the speed of movement .

Kết quả (Anh) 2:

It is based on the Doppler principle by which it is known that when a wave is reflected in a surface that is moving with res¬ment to the sender, it produces a shift in frequency that can be measured to provide a measure of the speed of movement.