公开(公告)号：US20240288011A1

公开(公告)日：2024-08-29

申请号：US18411085

申请日：2024-01-12

Applicant: Keyence Corporation

Inventor： Shinichi TSUKIGI ,  Yasunori KAWAGUCHI ,  Tomoyuki SAITO

IPC: F15B19/00 ,  G01N25/66

CPC classification number: F15B19/005 ,  G01N25/66

Abstract: A failure of a pneumatic device is prevented in advance by making it possible to determine whether or not compressed air supplied to the pneumatic device is sufficiently dried on the pneumatic device side. A process quantity measurement device includes: a pressure sensor generating a pressure signal corresponding to a pressure of a compressed gas passing through a pipe; a thermo-hygrometer measuring a temperature and a humidity of the compressed gas passing through the pipe; a user interface receiving an input of a pressure of the compressed gas in the supply source; and a dew point estimation unit that estimates a dew point in the supply source based on the pressure signal generated by the pressure measuring element, the temperature and the humidity measured by the thermo-hygrometer, and the pressure of the compressed gas in the supply source received via the user interface.

公开(公告)号：US20240288332A1

公开(公告)日：2024-08-29

申请号：US18411080

申请日：2024-01-12

Applicant: Keyence Corporation

Inventor： Masaki ISHIHARA ,  Yuta KATO ,  Masashi KAWANAKA ,  Shinichi TSUKIGI

IPC: G01M3/26

CPC classification number: G01M3/26

Abstract: It is possible to perform prompt and accurate diagnosis of a pneumatic device while mitigating a burden on a user at the time of introduction. A flow sensor includes: a flow rate measuring element for measuring a flow rate of a working gas in a pipe; a pressure measuring element for measuring a pressure of the working gas in the pipe; and an evaluation unit that determines a characteristic amount indicating an operation of the pneumatic device based on a combination of the flow rate measured by the flow rate measuring element and the pressure measured by the pressure measuring element, and evaluates the operation of the pneumatic device based on the determined characteristic amount.