Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ultrasonic module optimization method and structure for ultrasonic gas meter

An optimization method and technology of modular structure, applied in measurement devices, instruments, measurement flow/mass flow, etc., can solve problems such as inaccurate measurement of ultrasonic gas meters, and achieve the effects of insensitivity to noise, avoidance of zero drift, and accurate measurement

Pending Publication Date: 2021-02-26
成都皓超科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an ultrasonic gas meter ultrasonic module to solve the problem of inaccurate measurement of ultrasonic gas meters in the prior art

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 module optimization method and structure for ultrasonic gas meter
  • Ultrasonic module optimization method and structure for ultrasonic gas meter
  • Ultrasonic module optimization method and structure for ultrasonic gas meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be clearly and completely described below in conjunction with the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before the present invention is described in conjunction with the accompanying drawings, it should be pointed out that:

[0029] The technical solutions and technical features provided in each part of the present invention, including the following description, can be combined with each other under the condition of no conflict.

[0030] In addition, the embodiments of the present invention referred to in the following description are generally only a part of the embodiments of the present invention, rather than all the embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0...

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

The invention discloses an ultrasonic module optimization method for an ultrasonic gas meter, and the method comprises the steps: enabling the working frequency of an upstream ultrasonic transducer and the working frequency of a downstream ultrasonic transducer to be 200 kHz, achieving the equivalent sampling of a control time sequence in an on-chip system, and enabling the equivalent sampling frequency to reach 1 MHz; performing cross-correlation calculation processing on the digital signal of the upstream ultrasonic transducer and the digital signal of the downstream ultrasonic transducer, and obtaining a maximum correlation value of the digital signal of the upstream ultrasonic transducer and the digital signal of the downstream ultrasonic transducer through cross-correlation; obtainingthe time difference between the digital signal of the upstream ultrasonic transducer and the digital signal of the downstream ultrasonic transducer through the maximum correlation value; and carryingout transducer matching on the upstream ultrasonic transducer and the downstream ultrasonic transducer through acoustoelectric reciprocity. Therefore, the measurement of the ultrasonic gas meter is more accurate.

Description

technical field [0001] The invention relates to the technical field of ultrasonic gas meters, in particular to a method for optimizing an ultrasonic module of an ultrasonic gas meter and its structure. Background technique [0002] The household ultrasonic gas meter module includes a pair of ultrasonic transducers installed upstream and downstream, which alternately transmit and receive ultrasonic signals, and calculate the flow velocity of the gas medium by using the propagation time difference of the ultrasonic signals in the downstream and countercurrent directions in the gas medium, and then calculate the working time. Instantaneous flow, cumulative flow. The defects of the ultrasonic gas meter module in the prior art are as follows: the frequency of use is not high, and the sampling requirements cannot be met; the signal of the ultrasonic module used in natural gas is 3-6 times smaller than that of air, and the signal-to-noise ratio is poor, resulting in signal threshol...

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): G01F1/66
CPCG01F1/66
Inventor 向伦慈
Owner 成都皓超科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com