Unlock instant, AI-driven research and patent intelligence for your innovation.

Ultrasonic wedge and method for determining the speed of sound in same

A technology of ultrasonic signals and ultrasonic transducers, applied in the field of determining the sound velocity in ultrasonic wedges and clamping ultrasonic wedges externally, can solve problems such as inaccurate time-of-flight measurement and influence

Inactive Publication Date: 2014-02-12
GENERAL ELECTRIC CO
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this slot is required to be as wide as one wavelength (eg, 4 mm to 6 mm) wide for lower ultrasonic frequency signals (eg, 500 kHz), the slot can adversely affect the main ultrasonic signal propagating on the main ultrasonic path and lead to inaccurate time-of-flight measurement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ultrasonic wedge and method for determining the speed of sound in same
  • Ultrasonic wedge and method for determining the speed of sound in same
  • Ultrasonic wedge and method for determining the speed of sound in same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] figure 1 An exemplary ultrasonic flow meter 100 is shown installed on a pipeline 20 employing transit-time flow metering to determine the flow rate of a fluid. figure 2 is a diagram showing an exemplary upstream ultrasonic wedge 110 coupled to the pipe 20 figure 1 An enlarged view of a portion of the exemplary ultrasonic flowmeter 100. While the exemplary ultrasonic flowmeter 100 is used to measure the flow rate of fluid flowing in the conduit 20, it will be appreciated that other test objects can be used. Based on the flow direction 10 , a first ultrasonic transducer 130 can be installed on the pipe 20 upstream of a second ultrasonic transducer 230 . The primary ultrasonic pathway 153 through the fluid can be through the central axis of the conduit 20 or on a chordal pathway (ie, a pathway that does not pass through the central axis of the conduit 20). Each ultrasonic transducer 130 , 230 transmits an ultrasonic signal through the flowing fluid, which is received...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A wedge and a method for determining the speed of sound in the wedge is disclosed. The wedge includes a reflecting wall and is configured such that a portion of the main ultrasonic signal transmitted by an ultrasonic transducer is reflected and travels through the wedge back to the ultrasonic transducer. The speed of sound can be determined based on the distance traveled by, and the time of flight of, the main ultrasonic signal and reflected ultrasonic signal in the wedge.

Description

technical field [0001] The present invention relates generally to ultrasonic flow rate measurement and, more particularly, to externally clamped ultrasonic wedges and methods for determining the velocity of sound in an ultrasonic wedge. Background technique [0002] Ultrasonic flow meters are used to determine the flow rate of various fluids (such as liquids, gases, etc.) flowing in pipelines or other test objects. In one type of ultrasonic flow meter employing transit time flow metering, a pair of ultrasonic transducers are attached to the exterior of the pipe wall with the ultrasonic transducers located upstream and downstream of each other so that form an ultrasonic pathway between them. Each ultrasonic transducer transmits ultrasonic signals (eg, sound waves) along an ultrasonic pathway through fluid flowing in the conduit to be received and detected by the other ultrasonic transducers. The velocity of the fluid along the ultrasonic path can be determined as a function...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01H5/00G01H3/00G01F1/66
CPCB06B3/00G01F1/662G01F1/668
Inventor 敖晓蕾马玥S.利多里亚
Owner GENERAL ELECTRIC CO