Title:
ポンプ薄膜における漏れの検出のための装置及び方法
Document Type and Number:
Japanese Patent JP4434495
Kind Code:
B2
Abstract:
An apparatus, method, and computer program product for detection of fluid leakage through a membrane in a fluid flow control system. The fluid flow control system has a first chamber and a second chamber. A membrane is disposed between the first chamber and the second chamber. The second chamber has a connection to a pressure tank, the pressure tank has a fluid with a pressure, and the connection defines a fluid path. The method indudes in a first step, blocking the fluid path. The pressure of the fluid in the pressure tank is then adjusted. The pressure is measured in the pressure tank which creates a pressure measurement at each of a first set of multiple timed intervals while the fluid path is blocked and after the pressure is adjusted. A blocked pressure rate is calculated based on the pressure measurements in the pressure tank at the first set of multiple timed intervals. Next, the fluid path is unblocked. The pressure is measured within the pressure tank creating a pressure measurement at each of a second set of multiple timed intervals after the fluid path is unblocked. Then, an unblocked pressure rate is calculated based on the pressure measurements in the pressure tank at the second set of multiple timed intervals. Finally a leakage rate is calculated based on the blocked pressure rate and the unblocked pressure rate. An alarm is caused when the leakage rate becomes greater than a predetermined threshold value.
Inventors:
Gray rally
Bryant, Robert
Spencer, Jeffrey
Bryant, Robert
Spencer, Jeffrey
Application Number:
JP2000582714A
Publication Date:
March 17, 2010
Filing Date:
November 15, 1999
Export Citation:
Assignee:
Deca Products Limited Partnership
International Classes:
F04B43/02; F04B49/10; F04B43/00; F04B45/04; F04B51/00
Domestic Patent References:
| JP4038324U | ||||
| JP5502096A | ||||
| JP4358779A |
Attorney, Agent or Firm:
Yuzo Yamazaki
Kiko Okada
Hideo Hayashi
Kiko Okada
Hideo Hayashi