Title:
圧力センサ
Document Type and Number:
Japanese Patent JP3974897
Kind Code:
B2
Abstract:
The pressure sensor of the invention, with an internal hydraulic system for pressure transfer, has a seal enabling an exact fill volume for the hydraulic system. The pressure sensor includes: a platform; at least one separating membrane, which, with the platform, encloses a pressure chamber; a hydraulic path inside the platform, which communicates with the pressure chamber; a platform blind hole in a surface of the platform, with, extending from the end of the platform blind hole, a canal, which communicates with the hydraulic path, wherein the diameter of the canal is smaller than the diameter of the platform blind hole, so that a first abutment surface is formed between the platform blind hole and the canal; a sealing element insertable into the platform blind hole and having a second abutment surface complementary to the first abutment surface and having a radially flexible, lateral surface; and an expander, which can be brought into engagement with the sealing element, in order to expand the lateral surface of the sealing element radially.
Inventors:
Martin, liner
Application Number:
JP2003547892A
Publication Date:
September 12, 2007
Filing Date:
November 15, 2002
Export Citation:
Assignee:
ENDRESS + HAUSER GMBH + CO.KG
International Classes:
G01L13/02; G01L19/00
Domestic Patent References:
| JP3083838U | ||||
| JP1152638U | ||||
| JP64016945A | ||||
| JP9126095A |
Attorney, Agent or Firm:
Yoshiyuki Osuga