APPARATUS FOR LOCATING POSITION OF A BARRIOER BETWEEN TWO MEDIA, CHAMBER CONTAINING TWO MEDIA AND METHOD OF ASCERTAINING THE LEVEL OF SLUDGE ACCUMULATED ON THE BOTTOM OF SUCH CHAMBER BY MEANS OF THIS APPARATUS

摘要

Device for locating the position of the separation between two fluid media having specific physical characteristics different comprising a support (5); the transmission means of waves to a first end part (7); means of reception of waves towards the first end part (7); the transmission means and the reception means being separated from one another by a free space (10) in which can be the medium; the transmission means of the waves received by the reception means towards its second end portion (21), the waves emitted and received and transmitted is chosen to have the physical characteristics a function of the characteristics of the fluid medium; the means of analysis of the transmitted waves situated towards the second end part (21) or downstream, in such a way that the passage for the transmission and reception means of the separation between the two media is reflected by a significant change in the physical characteristics of the waves are analysed.