Craig Steven Graber
Engineering at Silver Sage Dr, Houston, TX
License number
Louisiana EI.0013453
Issued Date
Jan 1, 1900
Category
Civil Engineer
Address
Address
2235 Silver Sage Dr, Houston, TX 77077
Professional information
Apparatus And Method For Determining The Measurement Accuracy Of Electronic Gas Meters
US Patent:
5455781, Oct 3, 1995
Filed:
Aug 31, 1993
Appl. No.:
8/114453
Inventors:
Thomas J. Reynal - Houston TX
Craig S. Graber - Houston TX
Craig S. Graber - Houston TX
Assignee:
Dresser Industries, Inc. - Dallas TX
International Classification:
G01F 2500, G06G 757
US Classification:
364579
Abstract:
An apparatus and method for automatically determining the measurement accuracy of an uncalibrated field fluid flow meter by comparing its fluid flow volume, measurement, V. sub. f, to a fluid flow volume measurement, V. sub. m, of a master meter of known accuracy. The apparatus comprises fluid flow device operably coupled to the field and master meters for passing a common fluid stream through each of the meters at a predetermined flow rate until a predetermined volume of fluid has been registered by the field meter; a first measurement signalling device for a generating data representing the fluid volume registered by each of the meters; a second signalling device for generating data representing input temperatures and pressures to each of the meters; and a computer coupled to the fluid flow device for automatically controlling the flow rate and calculating the accuracy of the field meter.