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Ultrasonic meter

A metering device, ultrasonic technology, applied in the direction of measuring device, volume metering, measuring capacity, etc., can solve the problems of pipeline velocity curve deviation, reduce the accuracy of ultrasonic metering device, limit the accuracy of ultrasonic flow metering device installation position, etc.

Pending Publication Date: 2021-01-08
SENTEC SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, features such as bends, constrictions, valves, pumps, etc. upstream of the ultrasonic metering device can cause the velocity profile in the pipeline to deviate from the expected curve, reducing the accuracy of the ultrasonic metering device
Accuracy and / or possible installation locations of ultrasonic flow metering devices may be limited due to sufficiently long, straight pipe sections that may not be available

Method used

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  • Ultrasonic meter
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Examples

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Embodiment Construction

[0080]In the following, the same parts are denoted by the same reference numerals.

[0081]referencefigure 1 , Shows an ultrasonic metering device 1 for measuring the flow of fluid.

[0082]The ultrasonic measuring device 1 can be used to understand the present invention. The ultrasonic measurement device 1 includes a first ultrasonic transducer 2 and a second ultrasonic transducer 3. The first ultrasonic transducer 2 and the second ultrasonic transducer 3 are spaced apart along a flow path 4 in the form of a flow tube 5. The flow tube 5 is between the first opening 7 and the second opening 8 along the first axis 6 (atfigure 1 The z-axis in) extends. The term "flow tube" includes both the volume through which the fluid flows and the one or more structures that define the volume. For example, the flow tube 5 may generally take the form of a pipe that surrounds a pipe hole through which fluid can flow. However, the flow tube 5 is not limited to a pipe, and may take the form of any one or mo...

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PUM

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Abstract

An ultrasonic meter (28) for measuring a flow-rate of a fluid is described. The ultrasonic meter (28) includes a flow conduit (5) for the fluid. The flow conduit (5) extends along a first axis (6) between a first opening (7) and a second opening (8). The ultrasonic meter (28) also includes one or more pairs of ultrasonic transducers (2, 3). Each pair of ultrasonic transducers (2, 3) is configuredto define a corresponding beam path (9) intersecting the flow conduit (5) within a measurement region (12) of the flow conduit (5). The measurement region (12) spans between a first position (z1) anda second position (z2) spaced apart along the first axis (6). One or more portions of the measurement region (12) which are outside of any of the one or more beam paths (9) correspond to non-sampled volumes (12b). The ultrasonic meter (28) also includes one or more protrusions (34) extending along the first axis (6). At least part of each protrusion (34) is arranged to exclude fluid from at leastpart of one or more non- sampled volumes (12b).

Description

Technical field[0001]The invention relates to an ultrasonic flow rate (flow rate) metering device.Background technique[0002]An ultrasonic flow metering device has been constructed, which measures the flow rate of liquid or gas based on measuring time-of-flight. Sometimes, a pair of ultrasonic transducers are arranged at opposite ends of a flow tube having a known length.[0003]Alternatively, a pair of ultrasonic transducers may be arranged at a certain distance along the length of the flow tube, and the ultrasonic transducers are arranged at an angle to the flow tube so that the ultrasonic waves can be reflected from the inner wall or reflector of the flow tube. Pass between the pair of ultrasonic transducers. By obtaining a measurement of the transit time between ultrasonic transducers that are consistent with or opposite to the flow direction of the liquid or gas, the difference related to the flow rate of the liquid or gas can be obtained.[0004]Only a portion of the liquid or gas ...

Claims

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Application Information

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IPC IPC(8): G01F1/66
CPCG01F1/662G01F15/00G01F1/667
Inventor 本·戴维查理·帕特森
Owner SENTEC SA