Abstract:
An ultrasonic meter includes a group of piezoelectronic ceramic arrays, wherein each array comprises array stripes, such that a signal associated with each array can be split and a required phase shaft added to the signal to obtain simultaneously different data from the signal such as, for example, the transit time of a direct path and crosstalk. The smaller array can provide a higher aperture and improve the use of crosstalk.
Abstract:
An ultrasonic meter includes a group of piezoelectronic ceramic arrays, wherein each array comprises array stripes, such that a signal associated with each array can be split and a required phase shaft added to the signal to obtain simultaneously different data from the signal such as, for example, the transit time of a direct path and crosstalk. The smaller array can provide a higher aperture and improve the use of crosstalk.
Abstract:
A system, method, and apparatus for reducing ringing effects associated with a transducer comprises a transducer body, a transducer cap, a piezoelectric element formed in the cap, and a damping material formed around the piezoelectric element wherein the damping material suppresses a ringing effect associated with the transducer, while an O-ring is used together with damping material to support high pressure applications up to 230 bars.
Abstract:
A system, method, and apparatus for reducing ringing effects associated with a transducer comprises a transducer body, a transducer cap, a piezoelectric element formed in the cap, and a damping material formed around the piezoelectric element wherein the damping material suppresses a ringing effect associated with the transducer, while an O-ring is used together with damping material to support high pressure applications up to 230 bars.
Abstract:
A method and system for determining the size of a gas emission expelled from a processing facility includes obtaining gas sensor data from a plurality of gas sensors and wind speed and direction data from at least one weather station located at the processing facility. The wind speed and direction data is correlated with the gas sensor data to triangulate a location of the gas emission. A mean concentration of the gas emission is calculated, and the size of the gas emission is estimated by using at least one of a base calculation model, a gaussian plume (GP) model fit, or an event probability model fit.
Abstract:
A sensor having a converging shape (e.g., ellipsoidal) that causes a flow stream velocity to increase from the entry towards the center (narrowest region), in line to Bernoulli's principle. The sensor includes a trapped volume that can be used to detect gas molecules. The positioning of the sensor in a narrow region can expose it to higher velocity and higher ppm, which in turn lead to a better exchange of molecules between ambient and the void in front of a gas sensing element within the sensor, thereby improving the sensor's ability to detect gas molecules at lower concentrations and with a higher speed of response. The shape of the emission detection device allows for flow convergence regardless of the wind direction in 360°.
Abstract:
FIG. 1 is a left view of a mechanical housing for an emission monitoring device; FIG. 2 is a front view thereof; FIG. 3 is a right view thereof; FIG. 4 is a top view thereof with a solar panel; FIG. 5 is a left side perspective view thereof; FIG. 6 is a right side perspective view thereof; FIG. 7 is an additional right side perspective thereof; and, FIG. 8 is an exploded view thereof. The dot-dash line in FIG. 8 illustrates the order of assembly of the mechanical housing for an emission monitoring device and forms no part of the claim. The bracket enclosing the exploded view in FIG. 8 forms no part of the claim.
Abstract:
A method and system for locating and quantifying fugitive gas emission leaks includes obtaining gas sensor data and wind direction data from a plurality of sensors and weather stations located proximate a given area of interest. The gas sensor data and the wind direction data is validated to remove erroneous values and to merge the gas sensor data with the wind direction data to provide time synchronized gas sensor data and wind direction data over a given time interval. The time synchronized gas sensor data and wind direction data is segmented for each gas sensor location into wind direction bins containing a concentration of the gas levels in each bin. The area of interest is divided into a grid of cells and the bins projected on the grid cells for each gas sensor location along with the level of gas contained in the bins. The grid cells are then grouped into one or more contiguous grid cells having gas levels above a predefined level and a boundary area is calculated containing the grid cells with a gas level above a threshold to identify a potential leak area. The potential leak area is matched with a prior calculated leak area to identify the source location of the emission leak.
Abstract:
A system includes at least one pressure sensor that is configured to generate a first signal in response to sensing a process and generate a second signal in response to sensing a drift detection condition different from the process. The system includes at least one processing device that is configured to determine a pressure measurement (Pprocess) of the process using the first signal, and determine a pressure measurement (AP2) of the drift detection condition using the second signal. The at least one processing device is configured to compare the pressure measurement of the drift detection condition to one of: the pressure measurement of the process or a reference value. The at least one processing device is configured to identify whether drift has deteriorated accuracy of the at least one pressure sensor based on the comparison.