Patent ID: 8904879

Claim:
Vortex flowmeter, comprising: a measuring tube through which a medium is flowable, a bluff body provided in the measuring tube and a pressure sensor provided in an effective range of the bluff body, wherein the pressure sensor has a deflectable measuring diaphragm for determining the pressure in an intermediate medium near the measuring diaphragm, wherein at least one optical fiber is at least partially effectively connected to the measuring diaphragm along its length so that a deflection of the measuring diaphragm caused by a medium flowing through the measuring tube leads to an extension or compression of the optical fiber, wherein the pressure sensor has a pocket that is deflectable by the medium flowing through the measuring tube, the measuring diaphragm with the optical fiber connected thereto being located in the pocket in a manner such that the pocket protects the measuring diaphragm from the medium and causes the measuring diaphragm to be deflected together with the pocket.