A method, system and data network for a fluid register system used for the delivery of fluid commodities to customers at various delivery sites features a portable data capsule containing pricing information; an electrical fluid delivery volume measurement device; and a vehicular mounted calculator for retrieving the pricing data from said data capsule and calculating a billing amount for each fluid delivery with respect to a fluid delivery volume measurement.

Fluid register system

A self-contained correction unit operable in conjunction with a gas meter measuring an actual gas volume emits a digital output signal correlated to an equivalent standard gas volume therefor by correcting the actual gas volume for prevailing conditions of temperature and/or pressure. A temperature and/or pressure transducer is utilized which when exposed to the gas flow emits an analog voltage signal proportional to absolute values of the sensed parameter. By scaling the transducer output signal to a base condition voltage representing unity, a signal proportional to the desired correction is derived which is converted to a digital signal for supplying to a divider-counter. Within the divider-counter, a series of repetitive pulses corresponding to the actual volume measured by the meter is divided by the digital correction signal to yield a digital output signal of the corrected volume at the base condition for which correction was being sought.

Equivalent standard volume correction systems for gas meters

A portable computer based motor vehicle performance monitoring system which performs vehicle characteristic measurements and calculations. The system uses a distance sensor means, a fuel volume flow sensor means, and a fuel temperature sensor means for sensing various vehicle performance characteristics. The system has a computer controlled start/stop feature. It also has a user-prompting programming feature. It also has a combined liquid fuel volume and mass meter which uses a mathematical algorithm which converts volume data to mass data using a temperature sensitive function.

Motor vehicle performance monitoring system

A system for automatically calibrating the accuracy of a flowmeter which is used for measuring the flow of fluid such as gas or liquid flowing therethrough The system includes a calculator capable of performing mathematical functions responsive to receiving data signals and function command signals A prover cylinder which includes a piston is provided for measuring the temperature, pressure, and time required for accumulating a predetermined volume of fluid Along with these signals, signals representing the temperature and pressure of the fluid going into the meter are fed to a plurality of data registers Under control of a process controller, which includes a program counter, a programmable read only memory, and decoder logic system, the data registers are read out and the information is fed through a data select circuit to the calculator Command signals are also produced by a function select circuit and are fed to the calculator set indicating the desired function to be performed The calculator set performs the calculation and generates a readout indicating the flow rate of the fluid This reading is, in turn, compared with the reading produced by the flowmeter to determine if such is calibrated properly

/pdf/automatic-flowmeter-calibration-system-1linevb8r2.pdf

Automatic flowmeter calibration system

A device for measuring the volume of flowing liquid with temperature compensation includes a device for generating a volume signal, a device for detecting the temperature of the fluid to generate a temperature signal, and an electronic computer for receiving the volume and temperature signals to calculate a compensated volume. A device is provided for setting the value of the specific gravity of the liquid so that the computer, which is stored with coefficients for compensating the volume of various liquids each having the respective specific gravity at a standard temperature, the specific gravity being varied depending on the liquid temperature, selects one of the coefficients with reference to the set specific gravity value and the temperature value and calculates the compensated volume per volume signal and outputs the latter to a displaying device.

Device for measuring liquid flow volume with temperature compensating

A fluid flow measuring system in which input pulses from a pulse-producing volumetric flow transducer and an analog signal representing the fluid temperature, pressure, density or other variable are processed to yield a corrected series of output pulses corresponding to net (processes corrected) mass or standard units of flow measurement. Correction for flow transducer calibration factor and resolution of the numerical output may be selectively adjusted. Both total flow and flow-rate over a range of fluid temperatures may be measured in net standard units of measurement.

James E Moore

Papers

Flowmeter compensating system