Japan, Feb. 27 -- AZBIL CORP has got intellectual property rights for 'VALVE OPENING DETECTOR AND VALVE POSITIONER.' Other related details are as follows:
Application Number: JP,2022-042446
Category (FI): F16K37/00@E
Stage: PROBLEM TO BE SOLVED: To reduce a risk of damage of components used for detecting valve opening, and suppress wrong detection of the valve opening and deterioration in detection accuracy of the valve opening due to influence of ambient magnetism.SOLUTION: A valve opening detector 20 is a valve opening detector 20 that detects the valve opening of the valve 90, and includes: an encoder 21 that comprises a scale 22 fixed to a member that has a light and dark pattern and is displaced in conjunction with change in the valve opening of the valve 90, and an optical sensor 23B facing the scale 22 and reading a part of the light and dark pattern; and a valve opening derivation circuit 25 that derives the valve opening of the valve based on the part of the light and dark pattern read by the optical sensor 23B.SELECTED DRAWING: Figure 3 (Grant)
Filing Date: March 17, 2022
Publication Date: Sept. 29, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
