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Water flow temperature measuring method based on ultrasonic water meter, and ultrasonic water meter

A temperature measurement and ultrasonic technology, applied in the field of ultrasonic water meters, can solve the problems of increasing temperature sensors and installation structures, shortening the service life of water meters, increasing product costs, etc., to achieve the effect of reducing the amount of calculation, small parameters, and accurate water flow temperature values.

Pending Publication Date: 2021-01-22
NINGBO WATER METER
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This method has disadvantages: 1. Need to increase the temperature sensor and installation structure, and increase the product cost; 2. Increase the power consumption of the water meter, thereby shortening the service life of the water meter under the same conditions

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  • Water flow temperature measuring method based on ultrasonic water meter, and ultrasonic water meter
  • Water flow temperature measuring method based on ultrasonic water meter, and ultrasonic water meter
  • Water flow temperature measuring method based on ultrasonic water meter, and ultrasonic water meter

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Embodiment Construction

[0030]In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

[0031]Seefigure 2 , The embodiment of the present invention provides a water flow temperature measurement method based on an ultrasonic water meter, the water flow temperature measurement method includes steps S10 to S50

[0032]Step S10: Obtain the theoretical propagation distance measured from the ultrasonic transmitter to the ultrasonic receiver;...

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Abstract

The invention discloses a water flow temperature measuring method based on an ultrasonic water meter. The water flow temperature measuring method comprises the steps: obtaining a theoretical propagation distance measured from an ultrasonic transmitting end to an ultrasonic receiving end; acquiring a distance error compensation coefficient, and calculating the actual propagation distance of the ultrasonic wave according to the theoretical propagation distance; obtaining the conversion time of a time measurement chip, reading the propagation time of the current ultrasonic wave received by the time measurement chip, and calculating the actual propagation time of the ultrasonic wave according to the conversion time and the read propagation time; according to the actual propagation distance andthe actual propagation time, obtaining the actual propagation speed of the ultrasonic waves in the water body passing through a water meter at present through calculation; and calculating according to a calculation formula of the relationship between the ultrasonic propagation speed and the water body temperature to obtain the actual temperature of the water body flowing through the water meter.According to the invention, the water flow temperature measurement is more accurate and faster.

Description

Technical field[0001]The invention relates to the technical field of ultrasonic water meters, in particular to a method for measuring the temperature of water flow based on an ultrasonic water meter and an ultrasonic water meter.Background technique[0002]With the rapid development of my country's water supply industry, the respective water companies not only need to obtain data such as the water consumption of each user, but also need to collect the temperature data of the water flow in order to facilitate the monitoring of water quality. Therefore, the water meter needs to increase the temperature collection function to meet user needs. The current method commonly used in the industry is to add a temperature sensor module to the water meter to measure the temperature of the flowing water through temperature conduction. The method is insufficient: 1. It is necessary to increase the temperature sensor and installation structure, and increase the product cost; 2. The power consumption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/24G01F1/66
CPCG01K11/24G01F1/66
Inventor 裘晨陈富光娄嘉骏曾静凯曾淑云沈航
Owner NINGBO WATER METER
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