Title:
送液ポンプ及び液体クロマトグラフ
Document Type and Number:
Japanese Patent JP7088416
Kind Code:
B2
Abstract:
A liquid delivery pump includes a primary plunger pump, a secondary plunger pump fluidly connected in series downstream of the primary plunger pump, and a pressure sensor that detects a system pressure. The liquid delivery pump further includes a liquid delivery control part configured to execute first constant pressure control in a first constant pressure control term and to execute second constant pressure control in a second constant pressure control term. The first constant pressure control term is a term, which is in a liquid delivery cycle consisting of the primary discharge process and the secondary discharge process, in which the primary discharge process is executed, the second constant pressure control term is a part of a term in which the secondary discharge process is executed, and the second constant pressure control term is including a term that is continuous after the first constant pressure control term.
Inventors:
Jun Yanagibayashi
Application Number:
JP2021530410A
Publication Date:
June 21, 2022
Filing Date:
July 09, 2019
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
G01N30/32; F04B49/00; F04B49/06; G01N30/34; G01N30/86
Domestic Patent References:
| JP772130A | ||||
| JP7218489A | ||||
| JP20165296A | ||||
| JP2013185897A | ||||
| JP267478A | ||||
| JP156976A |
Foreign References:
| US20120216886 |
Attorney, Agent or Firm:
Daisuke Noguchi
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