公开(公告)号：US20250052731A1

公开(公告)日：2025-02-13

申请号：US18448827

申请日：2023-08-11

Applicant: Agilent Technologies, Inc.

Inventor： Steven KIRK

IPC: G01N30/86 ,  G01N30/20

Abstract: Methods and systems for estimating gas supply pressure are described herein. The method can include measuring a runtime valve duty cycle for a valve of a gas chromatography system. The method can include estimating a runtime supply pressure from the runtime valve duty cycle and at least one of a runtime flow rate or downstream pressure based on one or more calibration valve duty cycles corresponding to one or more calibration supply pressures and one or more calibration flow rates. The method can include, responsive to determining the runtime supply pressure is greater than a threshold supply pressure value, generating a notification that the runtime supply pressure is greater than the threshold supply pressure value.