A bypass valve includes a base defining a base sealing surface, the base defining an upstream utility bore, a downstream utility bore, a meter inlet bore, and a meter outlet bore each extending into the base sealing surface; and a selector defining a selector sealing surface and a front surface, a primary passage and a secondary passage defined within the selector between the selector sealing surface and the front surface, the primary passage being isolated from the secondary passage, the selector defining at least one primary passage bore extending into the selector sealing surface and connected in fluid communication with the primary passage, the selector defining at least one secondary passage bore extending into the selector sealing surface and connected in fluid communication with the secondary passage.

A bypass valve includes a base defining a base sealing surface, the base defining an upstream utility bore, a downstream utility bore, a meter inlet bore, and a meter outlet bore each extending into the base sealing surface; and a selector defining a selector sealing surface and a front surface, a primary passage and a secondary passage defined within the selector between the selector sealing surface and the front surface, the primary passage being isolated from the secondary passage, the selector defining at least one primary passage bore extending into the selector sealing surface and connected in fluid communication with the primary passage, the selector defining at least one secondary passage bore extending into the selector sealing surface and connected in fluid communication with the secondary passage.

A water quality measurement apparatus is provided. The apparatus comprises an electrochemical cell, a pH sensor, a temperature sensor, a control circuit, a power source, a database, and a warning device. The electrochemical cell comprises a working electrode, a reference electrode, and a counter electrode. The control circuit provides predetermined adjustable potentials between the reference electrode and the working electrode and measures electrochemical currents between the working electrode and the counter electrode, to form a current diagram based on the predetermined adjustable potentials and the electrochemical currents. The database stores predetermined reference diagrams based on various pH values and temperatures, and is in communication with the control circuit. The warning device is configured to output warnings, wherein the control circuit triggers the warning device in the condition that the current diagram exceeds the predetermined reference diagram based on the same range of the pH values and the temperatures.

An embodiment provides a device for measuring a fluid parameter of fluid flow in a channel, including: a transmitter; at least one receiver; a processor operatively coupled to the at least one transmitter and the at least one receiver; a memory device that stores instructions executable by the processor to: transmit, using the transmitter, directed energy carrying a signal toward a surface of a fluid in a fluid channel, so as to produce one or more reflections from the fluid surface; detect, by the at least one receiver, one or more received signals associated with the one or more reflections so produced; determine, based upon a measurement beam comprising characteristics of the transmitted and received signals, one or more fluid parameters to be measured using a processor of the device; and associate, using a processor of the device, the one or more fluid parameters with a channel segment. Other embodiments are described and claimed.

A drilling fluid flowback tracking system and method for determining quantities and qualities of drilling fluid returned from the wellhead in drilling operations, providing a frame, a receiving pipe, a riser pipe, and a surge suppressor for conveying returned drilling fluid, a tapered fluid bin having a calibrated drain slot, which retains fluid at a level corresponding to the inflow rate of the fluid, and flow rate marks for visual correlation of the highest level of outflow with the flow rate of the inflow. Collection and retention of data is further provided through sensors in an inline sensor housing communicating through a data cable with a data collection unit. Remote access to the data collection unit is further provided through a data transceiver and remote data unit.

A drilling fluid flowback tracking system and method for determining quantities and qualities of drilling fluid returned from the wellhead in drilling operations, providing a frame, a receiving pipe, a riser pipe, and a surge suppressor for conveying returned drilling fluid, a tapered fluid bin having a calibrated drain slot, which retains fluid at a level corresponding to the inflow rate of the fluid, and flow rate marks for visual correlation of the highest level of outflow with the flow rate of the inflow. Collection and retention of data is further provided through sensors in an inline sensor housing communicating through a data cable with a data collection unit. Remote access to the data collection unit is further provided through a data transceiver and remote data unit.

An oscillating positive expiratory pressure system including an oscillating positive expiratory pressure device having a chamber, an input component in communication with the chamber, wherein the input component is operative to sense a flow and/or pressure and generate an input signal correlated to the flow or pressure, a processor operative to receive the input signal from the input component and generate an output signal, and an output component operative to receive the output signal, and display an output.

Embodiments relate to estimating river discharge and depth. Initially, observed velocities are used to generate a maximum velocity streamline for a river section, which is then used with an observed shoreline to construct a streamline curvilinear grid. The grid is used to interpolate scattered velocity data points, which are used with a bottom friction of the river section to approximate mean total head slope values. A least squares minimization scheme is applied to a velocity-slope relationship to estimate a bottom friction and discharge coefficient by fitting a difference in the predicted mean total head elevation values between upstream and downstream ends of the river section to a respective ζ-average of the measured total head values of the river section. Discharge of the river section is determined based on the coefficient and a velocity-depth relationship and then used to generate a river forecast.

A system, method, and computer program product for identifying an incorrectly sized utility meter having a measuring system for fluid passing through the utility meter, including monitoring a plurality of utility meters, each utility meter being installed at a utility location, receiving utility meter data, transmitted by at least one utility meter of the plurality of utility meters to a central computer including at least one processor, wherein the utility meter data comprises a measurement of a volumetric amount of fluid passing through the utility meter or other utility meter data for deriving the volumetric amount of fluid passing through the utility meter, identifying the incorrectly sized utility meter by detecting whether a flow rate associated with the volumetric amount of fluid passed through the utility meter is outside of a flow rate range; and providing an interactive interface to report/receive a status associated with the incorrectly sized utility meter.

A system, method, and computer program product for identifying an incorrectly sized utility meter having a measuring system for fluid passing through the utility meter, including monitoring a plurality of utility meters, each utility meter being installed at a utility location, receiving utility meter data, transmitted by at least one utility meter of the plurality of utility meters to a central computer including at least one processor, wherein the utility meter data comprises a measurement of a volumetric amount of fluid passing through the utility meter or other utility meter data for deriving the volumetric amount of fluid passing through the utility meter, identifying the incorrectly sized utility meter by detecting whether a flow rate associated with the volumetric amount of fluid passed through the utility meter is outside of a flow rate range; and providing an interactive interface to report/receive a status associated with the incorrectly sized utility meter.