A platform configured for evaluating metering technologies and generating meter profiles using information derived from a plurality of meters retrieved from a plurality of environments. The platform may include a centralized data storage system in communication with a fluid meter test bench system. A computing device automatically controls fluid meter test bench system to measure the accuracy of fluid meters and transfers meter data to at least one of the centralized data storage system or a local data silo in communication with the centralized data storage system. Exemplary meter data includes meter type data, meter test data and meter environmental data. Meter environmental data may comprise meter install location and at least one of fluid quality data or fluid meter mounting position. The platform is configured to provide a meter profile for each meter tested based at least in part on the meter data and the test system data.

Systems, methods and apparatus for monitoring yield while harvesting. In one embodiment a mass flow rate sensor measures the mass flow rate of the harvested grain. A weight sensor measures the weight of the harvested grain. The measured mass flow rate is correlated with the weight of the harvested grain. Processing circuitry calculates any error in the measured mass flow rate using the measured weight. The calculated error is used to correct any inaccuracy in the measured mass flow rate.

An apparatus is disclosed that may include a substrate that may have a surface, a channel of a volume that may be defined, at least in part, by the substrate, wherein the channel may have a first end and a second end, a valve may be coupled to the channel at the first end, wherein the valve may be configured to allow a fluid to pass into the channel when the valve is open, and a continuity detector, which may be coupled to the channel at the second end, wherein the continuity detector may be activated when the fluid contacts the continuity detector, wherein the continuity detector may further be configured to provide a signal to close the valve and remove the fluid from the channel. A method for calculating a rate of flow of a fluid collected from a bodily surface into a body-worn device is disclosed.

A method of calibrating a mass flow sensor while harvesting grain includes sensing an accumulated mass of a portion of grain within the grain tank with a first sensor. A mass flow rate sensor is calibrated based at least in part on a signal of the first sensor.

Systems, methods and apparatus for monitoring yield while harvesting. In one embodiment a mass flow rate sensor measures the mass flow rate of the harvested grain. A weight sensor measures the weight of the harvested grain. The measured mass flow rate is correlated with the weight of the harvested grain. Processing circuitry calculates any error in the measured mass flow rate using the measured weight. The calculated error is used to correct any inaccuracy in the measured mass flow rate.

A method of calibrating a mass flow sensor while harvesting grain includes sensing an accumulated mass of a portion of grain within the grain tank with a first sensor. A mass flow rate sensor is calibrated based at least in part on a signal of the first sensor.

To provide a calibration device for apparatus filling a gas such as hydrogen gas and capable of efficiently and safely measuring weight and amount of the gas such as hydrogen gas that are filled at high pressure. Calibration devices 100, 200, 300, 400 according to the present invention include a measurement housing 1, accommodated in a housing main body 10, to the measurement housing 1 a high pressure fuel gas being fed from outside of the housing main body 10; and a scale 3 for measuring a weight of a fuel gas fed to the measurement housing 1, wherein an inside of the measurement housing 1 is visible from outside of the housing main body 10.

To provide a calibration device for apparatus filling a gas such as hydrogen gas and capable of precisely measuring quantity of the gas that is filled at high pressure. A calibration device of the present invention includes: a filling vessel 2, accommodated in a measurement housing 1, to the filling vessel 2 a high pressure fuel gas such as hydrogen gas being fed from outside of the measurement housing 1; a scale 3 for measuring a weight of a fuel gas fed to the filling vessel 2; and a control device CU for eliminating an error caused by changing buoyant force from a gas in the measurement housing before and after filling the fuel gas.

To provide a calibration device for apparatus filling a gas such as hydrogen gas and capable of precisely measuring quantity of the gas such as hydrogen gas that are filled at high pressure. A calibration device 100 according to the present invention includes a measurement housing 10 accommodating a filling vessel 2 to which a high pressure fuel gas is fed from outside; a scale 3 for measuring a weight of a fuel gas fed to the filling vessel 2; and a main body housing 10 accommodating the measurement housing 1 and the scale 3.

Various embodiments of the present disclosure are directed to measuring methods for determining a flow rate of a process gas, contained in a gas pressure vessel charged with overpressure, escaping from the gas pressure vessel. In one example embodiment, the method includes: exerting a vessel weight force from the gas pressure vessel together with the contained process gas; compensating for the vessel weight force by means of a counterweight force exerted by a counterweight, or the counterweight force by means of the vessel weight force exerted by the counterweight, at least partially to a resultant measured weight force; determining the measured weight force at at least two points in time; and determining the flow rate of the process gas using the measured weight force determined at the at least two points in time.