METHOD AND DEVICE FOR MEASURING THE HEIGHT OF A PRODUCT IN A SURROUNDING ENVIRONMENT HAVING A THERMAL BEHAVIOR DIFFERENT FROM THAT OF THE PRODUCT TO BE MEASURED, PARTICULARLY FOR MEASURING THE HEIGHT OF SNOW

摘要

A MEASURING ROD 10 CARRYING A PLURALITY OF TEMPERATURE SENSORS 15A, ... 15N DISTRIBUTED OVER ITS HEIGHT IS PLACED SO THAT AT LEAST ITS LOWER PART IS DROWNED IN THE PRODUCT OF WHICH THE HEIGHT IS TO BE MEASURED. SIGNALS DELIVERED BY THE SENSORS AND REPRESENTING THE TEMPERATURES AT THE LOCATIONS OF THE DIFFERENT SENSORS ON THE ROD 10 ARE COLLECTED AND THE VARIATION IN TIME OF THE SIGNALS COLLECTED IS EXAMINED IN ORDER TO IDENTIFY THE LOWEST SENSOR WHICH PROVIDES A SIGNAL THE VARIATION IS GREATER THAN A THRESHOLD.