公开(公告)号：US10458569B2

公开(公告)日：2019-10-29

申请号：US15355348

申请日：2016-11-18

Applicant: Azbil Corporation

Inventor： Kouichiro Murata

IPC: F16K31/12 ,  F16K37/00 ,  F16K31/06 ,  F15B5/00 ,  H01F7/06 ,  H01F7/122 ,  H01F7/14

Abstract: The positioner having an air circuit including magnetism generating portions producing magnetism based on a current in accordance with a difference between a valve opening setpoint of a regulator valve and a measured value for the valve opening, to generate a pneumatic signal wherein the air pressure is adjusted based on the magnetism produced by the magnetism generating portions, where this pneumatic signal is supplied to an operating device of the regulator valve, where the magnetism generating portions are connected in parallel, and including a plurality of coils connected through magnetically additive coupling.

公开(公告)号：US20180278927A1

公开(公告)日：2018-09-27

申请号：US15926184

申请日：2018-03-20

Applicant: AZBIL CORPORATION

Inventor： Kouichiro Murata

IPC: H04N17/00 ,  G01N21/93 ,  G01J1/16

CPC classification number: H04N17/004 ,  G01J1/0228 ,  G01J1/16 ,  G01J1/18 ,  G01J2001/1615 ,  G01N21/93 ,  G02F1/1309 ,  G05B23/0283

Abstract: A diagnosis unit determines a first degradation degree of a display device on the basis of a measured illuminance calculated from an output of a photo sensor, compares the first degradation degree with a degradation threshold, and outputs a corresponding diagnosis when the first degradation degree reaches the degradation threshold.