Counters and liquid flowmeters with oval gears
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" The book describes the fundamentals of the theory, calculation, design for operation of counters and flowmeters with oval gears. The latest research and achievements of national and foreign technology are highlighted, and ways to optimize the main parameters of these devices, as well as issues of automatic compensation of their error and measuring systems, are considered based on them.The book is intended for engineers and technical workers involved in the creation, research and operation of information systems for measuring fluid flow. Table of Contents Foreword Chapter I. Technical characteristics of counters and flowmeters with oval gears. 1. The principle of work 2. Primary measuring transduce r3. Information block 4. Industrial production of counters and flow meters. Chapter II Theoretical foundations of the operation of primary measuring transducers5. Geometric characteristics of the measuring chamber and oval gears6. Kinematic and dynamic characteristics 7. The interaction of fluid flow with oval gears8. The fluid flow in radial and end gaps 9. The distribution of pressure along the hydraulic path and the construction of a statistical picture of leakage in the gaps10. Optimization of the ratio of the main dimensions of the measuring chamber and oval gears11. Differential pressure. Coefficient of hydraulic resistance Chapter III. Metrological characteristics of counters and flow meters 12. Normalized metrological characteristics 13. The reading error of counters and flow meters 14. The dependence of the error on the flow rate and viscosity of the liquid 15. The dependence of the error on the temperature of the liquid 16. The influence of the values ??of the gaps on the error of readings 17. Effect of external braking torque18. The effect of resistance at the input and output19. The influence of geometric proportions of the dimensions of the measuring chamber20. The mathematical model of the error of the counter or flow meter Chapter IV Design calculation 21. Key points 22. The calculation of the maximum, minimum and nominal costs 23. Calculation of the measuring chamber, oval gears of the kinematic chain 24. The calculation of the cams for cutting oval gears Chapter V. Application of counters and flow meters in measuring systems25. System classification 26. Schematic diagrams of measurement systems 27. Introduction of automatic temperature density correctionReferences "
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