Method and device for measuring the height of a product in surroundings having a thermal behaviour different from that of the product to be measured, particularly for measuring the height of snow

摘要

A measuring rod carrying a plurality of temperature sensors distributed over its height is placed in such a way that at least its lower part is embedded in the product of which the height is to be measured. Signals produced by the sensors and representing the temperatures in the locations of the various sensors on the rod are picked up and the variation in time of the picked-up signals is monitored in order to identify the lowest situated sensor which delivers a signal of which the variation is higher than a predetermined threshold.