초록 ▼

A method of manufacturing a measuring tube for an electromagnetic flow sensor includes the steps of filling a material to be sintered into a lumen of a support tube, sintering the material within the lumen to obtain an open-pored reinforcing body of the measuring tube, and impregnating the open-pore

A method of manufacturing a measuring tube for an electromagnetic flow sensor includes the steps of filling a material to be sintered into a lumen of a support tube, sintering the material within the lumen to obtain an open-pored reinforcing body of the measuring tube, and impregnating the open-pored reinforcing body obtained by the step of sintering the material within the lumen at least partially with a liquid insulating material and solidifying the insulating material to obtain a liner of the measuring tube.

대표청구항 ▼

The invention claimed is: 1. A method of manufacturing a measuring tube for an electromagnetic flow sensor, said method comprising the steps of: filling a granular material to be sintered into a lumen of a support tube; sintering the granular material within said lumen to obtain an open-pored reinf

The invention claimed is: 1. A method of manufacturing a measuring tube for an electromagnetic flow sensor, said method comprising the steps of: filling a granular material to be sintered into a lumen of a support tube; sintering the granular material within said lumen to obtain an open-pored reinforcing body of said measuring tube; and impregnating said open-pored reinforcing body obtained by said step of sintering the material within said lumen at least partially with a liquid insulating material and solidifying the insulating material to obtain a liner of said measuring tube. 2. The method as claimed in claim 1, comprising the further step of: inserting a sintering mandrel into the lumen of the support tube to form a sintering space in the lumen of the support tube; and filling said material to be sintered into said sintering space. 3. The method as claimed in claim 1, comprising the further steps of: inserting a casting mandrel into the lumen of the support tube to form a casting space in the lumen of the support tube; and filling said insulating material into said casting space. 4. The method as claimed in claim 1, wherein the step of impregnating said open-pored reinforcing body at least partially with said liquid insulating material includes a step of liquefying the insulating material. 5. The method as claimed in claim 1, said method comprising the further steps of: providing the support tube with wall openings; and filling a part of said material to be sintered into the wall openings. 6. The method as claimed in claim 1, said method comprising the further steps of: providing at least one end of the support tube with an expanded portion; and filling a part of said material to be sintered into the expanded portion. 7. The method as claimed in claim 1, said method comprising the further step of: mounting coils of a magnetic-circuit arrangement of said electromagnetic flow sensor at the support tube. 8. The method as claimed in claim 1, said method comprising the further step of: mounting electrodes of a voltage pick-off arrangement of said electromagnetic flow sensor at the support tube. 9. The method as claimed in claim 4, wherein the step of liquefying the insulating material includes a step of melting the insulating material.