Title:
【発明の名称】流量計で流体流量の現在値の変化をモニターする方法及び装置
Document Type and Number:
Japanese Patent JPH09506175
Kind Code:
A
Abstract:
PCT No. PCT/FR94/01396 Sec. 371 Date Oct. 7, 1996 Sec. 102(e) Date Oct. 7, 1996 PCT Filed Nov. 30, 1994 PCT Pub. No. WO95/16189 PCT Pub. Date Jun. 15, 1995The invention provides a method of monitoring variation in the current value of a rate of fluid flow through a fluid meter which includes a measurement unit and a rotary shaft connected to said measurement unit and suitable for rotating about its own axis when a volume of fluid passes through the measurement unit, the method consisting in detecting rotary movements rather than rotation of the shaft at a sampling frequency that is variable in application of a predetermined sampling relationship, said frequency being defined as a function of at least one predetermined fluid flow rate value, and in electronically processing bits corresponding to detection and to non-detection of a rotary movement of the shaft at said sampling frequency in order to determine the current value of the fluid flow rate over a continuum of flow rates and relative to the predetermined fluid flow rate value included in said continuum of flow rates.
Inventors:
Prison francois
Janet Philip
Buival Frederick
Janet Philip
Buival Frederick
Application Number:
JP51599494A
Publication Date:
June 17, 1997
Filing Date:
November 30, 1994
Export Citation:
Assignee:
Schlumberger Andustrie Society Anonym
International Classes:
G01F1/00; G01F1/06; G01F1/10; G01F15/00; G01F15/10; (IPC1-7): G01F1/06; G01F1/00; G01F1/10
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)