The goal of the thesis Development of computer interface for a clamp-on ultrasonic flow meter” is to develop a new and improved computer interface for a clamp-on ultrasonic flow meter. The primary goal is to make the ultrasonic flow meter easier to use and get the flow rate-information in real-time.
This thesis focuses on analysis, using reversed engineering, of an existing clamp-on ultrasonic flow meter. The goal of the project is evaluation and further development of the ultrasonic flow meter’s existing computer interface with the purpose of offering the option of using Microsoft Excel and Visual Basic for data acquisition and measurement of the flow rate of liquids.
Contents
1 Introduction
1.1 BACKGROUND
1.2 CLAMP-ON ULTRASONIC FLOW METER
1.3 PURPOSE
1.4 DESCRIPTION OF PROBLEM
1.5 SCOPE AND REQUIREMENTS
1.6 ENVIRONMENTAL REQUIREMENTS
1.7 THESIS OUTLINE
2 Theoretical background
2.1 FLOW MEASUREMENT
2.2 ULTRASONIC FLOW MEASUREMENT
2.3 OTHER APPLICATIONS OF ULTRASOUND
2.4 DATA ACQUISITION SYSTEMS (DAQ)
2.5 EMBEDDED SYSTEM BUSES
2.6 DATA ACQUISITION USING MICROSOFT EXCEL AND VISUAL BASIC FOR APPLICATIONS
3 Design methodology
3.1 REVERSE ENGINEERING
3.2 AN ANALYSIS OF THE ULTRASONIC FLOW METERS COMMUNICATIONS PROTOCOL
3.3 REVERSE ENGINEERING OF THE ULTRASONIC FLOW METER AND THE ORIGINAL COMPUTER INTERFACE
3.4 RESULTS FROM THE ANALYSIS OF THE COMMUNICATION PROTOCOL USED BY THE ULTRASONIC FLOW METE
3.5 DESIGN OPTIONS AND DECISIONS
4 Improved computer interface
4.1 SYSTEM OVERVIEW
4.2 PIC FIRMWARE
4.3 USER INTERFACE
4.4 POWER SUPPLY
4.5 DESIGN FOR EMC
5 Testing and results
5.1 EVALUATION OF THE ULTRASONIC FLOW METER
5.2 THE IMPROVED COMPUTER INTERFACE
6 Conclusions
6.1 SUMMARY OF ACHIEVEMENTS
6.2 LIMITATIONS OF THE NEW INTERFACE
6.3 FUTURE WORK
7 References
Author: Sundin, Peter
Source: Jönköping University
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