A leak detection system for plumbing fixtures may include a dual channel system (700) having two channels of water flow to measure fluid flow that is both intentional and accidental. A disclosed embodiment may include a body (710) that is sometimes fastened to a top plate (715) sometimes fastened with socket head cap screws (717). The dual fluid channels may comprise a lower default or first flow path (790). Water flowing though the lower or default path may pass through a paddle wheel assembly (760) and paddle wheel (762) wherein flow rate may be measured by a myriad of systems including magnets or other sensors deposed on the distal ends of the paddle wheel spokes. A leak detection system may also include a single channel system (800) with a flap system. Disclosed systems may include other types of leak measuring devices.

Embodiments for a cerebrospinal fluid flow detector for detecting the flow of cerebrospinal fluid are disclosed. In some embodiments, the cerebrospinal fluid flow detector includes a casing with a rotatable wheel having a plurality of radially extending arms disposed therein. The rotatable wheel is in communication with a channel having a distal end in communication with an inlet port and a proximal end in communication with an outlet port such that the flow of cerebrospinal fluid through the channel causes the rotatable wheel to rotate. In some embodiments, each radially extending arm includes at least one radiopaque marker in which movement of the rotatable wheel caused by fluid flow through the channel allows an X-ray imaging apparatus to detect the difference in position of a respective radiopaque marker at multiple times caused by rotation of the rotatable wheel.

A flow meter is disclosed. The flow meter can include a housing that has a cavity. The flow meter can also include a deformable tube that is disposed in the cavity. The deformable tube can comprise a portion of a flow path of a fluid substance. The flow meter can further include a cam that is rotatably coupled to the housing. A portion of the cam is configured to press against a portion of the collapsible tube so as to deform the portion of the collapsible tube. The cam can be configured to rotate in response to a flow of the fluid substance in the flow path.

A dosing device for dispensing a predetermined amount of liquid, in particular a predetermined amount of water, has a housing with a liquid inlet, a liquid outlet, and a flow channel therebetween. A valve element in the flow path can be opened and closed. A measuring device measures the flow rate through the flow channel in the direction of the liquid outlet. A controller has an operating unit or is coupled to an operating unit for signal transmission. The dosing device is actuatable by the operating unit. The controller is further coupled in terms of control technology to the valve element and to the measuring device, the controller holding the valve element in an open position or moving it to an open position when the dosing device is actuated.

Described is apparatus housing an instrumented device and an inner tube providing a fluid flow path therethrough. A strain gauge is on the outer surface of the inner tube. Bulkhead(s) transfers forces from an external housing to the inner tube to be detected by the strain gauge. Flow sensors measure fluid flow velocity and/or fluid flow volume rate. Pressure sensors sense pressure differential between an inlet side and an outlet side of the apparatus. Sensors provide for measurement of RPM, WOB, azimuth and rate of penetration. Communication means (such as a Wi Fi transceiver) and/or GPS device can communicate through EM transparent windows. The apparatus is used aboveground axially in-line in a drill string.

A turbine wheel meter for measuring the flow rate of a liquid, in particular water, is disclosed, with a measuring device, with an inlet and an outlet for the liquid to be measured, with a flow channel provided between the inlet and outlet, and with a turbine that has a turbine wheel with curved blades positioned in the flow channel, and wherein the turbine wheel cooperates with the measuring device to measure the flow rate of the liquid. A lower pressure loss and a high measurement sensitivity are achieved by embodying the turbine as a radial turbine with single-curved blades on the turbine wheel.

A turbine wheel meter for measuring the flow rate of a liquid, in particular water, is disclosed, with a measuring device, with an inlet and an outlet for the liquid to be measured, with a flow channel provided between the inlet and outlet, and with a turbine that has a turbine wheel with curved blades positioned in the flow channel, and wherein the turbine wheel cooperates with the measuring device to measure the flow rate of the liquid. A lower pressure loss and a high measurement sensitivity are achieved by embodying the turbine as a radial turbine with single-curved blades on the turbine wheel.

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment are provided. “Internet-of-Things” (IoT) functionality is provided for pool and spa equipment in a flexible and cost-effective manner. Network connectivity and remote monitoring/control of pool and spa equipment is provided by various components such as a network communication and local control subsystem installed in pool/spa equipment, and other components. Also disclosed are various control processes (“pool logic”) which can be embodied as software code installed in any of the various embodiments of the present disclosure.

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment are provided. “Internet-of-Things” (IoT) functionality is provided for pool and spa equipment in a flexible and cost-effective manner. Network connectivity and remote monitoring/control of pool and spa equipment is provided by various components such as a network communication and local control subsystem installed in pool/spa equipment, and other components. Also disclosed are various control processes (“pool logic”) which can be embodied as software code installed in any of the various embodiments of the present disclosure.

A method, meter and device capable of determining the accuracy, proof, or percent of error of a meter in service. The method is configured to establish one or more baseline flow measurements for the meter, the meter configured to measure a flow through the meter; obtain a current flow measurement for the meter; and determine a proving result in accordance with a comparing of the current flow measurement to the one or more baseline flow measurements.