| 摘要 |
In a flow measuring device having a measuring tube with a sensor arrangement and an evaluation unit for ascertaining a flow, a sensor arranged on or in a measuring tube having a tube wall of a metal support material and a first ply of a corrosion resistant material that protects the metal support material from corrosive measured media and is placed on an inner surface of the tube wall; or a tube wall of a corrosion resistant material, wherein in the measuring tube on the side of the first ply facing the medium or on the side of the measuring tube wall of the corrosion resistant, synthetic material facing the medium a ply or second ply is arranged for reducing mechanical loading, of the synthetic material by the measured medium, wherein the ply or second ply has a greater hardness than the first ply or the tube wall. |
| 主权项 |
1. Flow measuring device comprising a measuring tube with a sensor arrangement and an evaluation unit for ascertaining a flow velocity, a volume flow and/or a mass flow, wherein the sensor arrangement is arranged on or in a measuring tube, which measuring tube has: a measuring tube wall of a metal support material and a first ply of a corrosion resistant, synthetic material, wherein the first ply protects the metal support material from corrosive measured media and is placed on an inner surface of the measuring tube wall; or a measuring tube wall of a corrosion resistant, synthetic material; wherein
in the measuring tube on the side of the first ply facing the medium or on the measuring tube wall of the corrosion resistant, synthetic material facing the medium a ply or second ply is arranged for reducing mechanical loading, especially abrasive loading, of the synthetic material by the measured medium, wherein the ply or second ply has a greater hardness than the first ply or the measuring tube wall of corrosion resistant, synthetic material. |
