Does snow reflect ultrasound?

Question

Sensors

Will the ultrasonic range finder show the correct distance to a surface covered with snow?
And what will be the distance - to the surface of the snow or the surface of the coating?

Answer 1

Watching what frequency. Reflects, absorbs, transmits.
Up to 200 mm of loose snow can be "pierced" if a frequency of 345-349 kHz is used. Dense snow - only if there is contact.

Answer 2

It won't show you exactly. Since, according to the properties of the waves, the signal will partially go into the medium (snow), and partially it will be reflected. Yes, and much depends on a number of measurement conditions, for example: temperature, air humidity.
Here is some theory to think about on this topic:
engineering-solutions.ru/ultrasound/theory