Patent ID: 7168315

Claim:
A level meter ( 1 ) with an initial, and specifically outside, oscillating body ( 3 ) and a second, and specifically inner, oscillating body ( 4 ), which bodies ( 3 , 4 ) are coaxially positioned relative to a longitudinal axis (X), a drive and reception device ( 7 ) for exciting an oscillation in the oscillating bodies ( 3 , 4 ), and a diaphragm ( 61 ) for elastically coupling one of the oscillating bodies ( 3 ), such that the diaphragm ( 61 ), on its side facing away from the oscillating bodies ( 3 , 4 ), rests above a gap (s) that is positioned at a distance from a transitional element ( 5 ), wherein the gap (s) is small enough so that if the diaphragm ( 61 ) is dislocated by a given distance the diaphragm ( 61 ) will come up against the transitional element ( 5 ).