Intelligent differential pressure flowmeter inset in industrial Ethernet interface and the measurement method

A mass flow and Ethernet technology, which is applied in the field of intelligence and networking of differential pressure mass flowmeters, can solve the problems of backward sensors, gaps in intelligence and networking, etc.

Inactive Publication Date: 2007-10-24
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, today's sensors are still very backward in perceiving information, and there is still a big gap in intelligence and networking.

Method used

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  • Intelligent differential pressure flowmeter inset in industrial Ethernet interface and the measurement method
  • Intelligent differential pressure flowmeter inset in industrial Ethernet interface and the measurement method
  • Intelligent differential pressure flowmeter inset in industrial Ethernet interface and the measurement method

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Experimental program
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Effect test

Embodiment Construction

[0032] The multi-function sensor 1 can measure the sensor temperature (t 1 ), medium temperature (t 2 ), pressure signal (sp), conditioned and digitized. The multifunctional sensor 1 and the microprocessor DSP 2 agree on a communication format, and send temperature, pressure, differential pressure signals, etc. to the DSP through the serial port for further processing. The entire embedded system is based on the multifunctional differential pressure sensor. The circuit board embedded in the original multifunctional differential pressure flowmeter is connected with the original signal conditioning and analog-to-digital conversion circuit board through the serial port, and supplies power to it. The entire system is encapsulated in the mass flow meter housing.

[0033] This intelligent differential pressure mass flow measurement method uses the above-mentioned intelligent differential pressure measuring instrument for detection, and the detection steps are as follows:

[0034]...

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Abstract

The invention relates to an intelligent differential pressure mass flow gage embedded into industrial Ethernet interface, and a relative measuring method. The inventive intelligent differential pressure mass flow gage comprises a multifunctional sensor for measuring differential pressure, pressure and temperature and outputting differential pressure, pressure, sensor temperature, and medium temperature signal to a microprocessor DSP, and the microprocessor DSP processes data fusion, eliminates the effects of temperature and pressure on the differential pressure, uses flux equation to calculate out instant mass flux, accumulated mass flux, and output instant mass flux, accumulated mass flux, pressure and temperature signals to a microprocessor MCU, and the microprocessor MCU packs the received signal via Ethernet format, to form an Ethernet frame. The microprocessor MCU has an Ethernet card to transmit data frame to industrial Ethernet bus. The invention realizes intelligent and network flux gage and measuring method.

Description

technical field [0001] The invention relates to the intelligentization and networking of differential pressure mass flowmeters, especially the differential pressure mass flow processing of differential pressure flowmeters, the compensation method of differential pressure signals, and the design of embedded industrial Ethernet communication interfaces. Background technique [0002] In industrial production and product trading, because material balance, heat balance, storage, etc. all need to know the quality of the medium, especially in the fine chemical industry, aerospace industry and petroleum industry, higher requirements are put forward for the accuracy of mass flow measurement, mainly The reason is that mass flow measurement is hardly affected by external conditions and is more in line with the requirements of production and trade. At present, the instruments that directly measure mass flow are mainly Coriolis mass flowmeters and thermal mass flowmeters. Especially the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/34H04L12/40H04L1/00H04L29/06
Inventor 程明涛付敬奇费敏锐王海宽
Owner SHANGHAI UNIV
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