1. Future Discussions 1.Search Internet Major Resources –Contact author for more information 2.Funding from Donors – Grants –USAID, SIDA -- RFP – Requests for Proposals 3.Preparing article for Journal peer-review –AEA, AMA 4.Conservation Tillage – –Whole practice - application in Ethiopia 5.Discussion on using SAS – statistical analysis –Experimental Design –Linkage current course experience –Use existing data –Project Objectives & Setup of experiments 6.Instrumentation –Identify needs – accuracy vs precision –Stress strain measurement – tillage Shear measurement, cone index, draft measurement, bulk densities –Temperature measurement –Research Measurement Errors 7.Ergonomic implements – implement standardization Engineering Society (1997) 8.Role in watershed management – integrated approach w/ sustainability Water-logged 9.Dryland crop production Today is 2/5 – I leave on Thursday 2/8 at 2 pm

2. Future Discussions 1.Search Internet Major Resources –Contact author for more information 2.Funding from Donors – Grants –USAID, SIDA -- RFP – Requests for Proposals 3.Preparing article for Journal peer-review –AEA, AMA 4.Conservation Tillage – –Whole practice - application in Ethiopia 5.Discussion on using SAS – statistical analysis –Experimental Design –Linkage current course experience –Use existing data –Project Objectives & Setup of experiments 6.Instrumentation –Identify needs – accuracy vs precision –Stress strain measurement – tillage Shear measurement, cone index, draft measurement, bulk densities –Temperature measurement –Research Measurement Errors 7.Ergonomic implements – implement standardization Engineering Society (1997) 8.Role in watershed management – integrated approach w/ sustainability Water-logged Dryland crop production Today is 2/7 – I leave on Thursday 2/8 at 2 pm Today @ 4 pm – Seminar at USAID Center

3. Today’s Discussion Instrumentation –Identify needs – accuracy vs precision –Stress strain measurement – tillage Shear measurement, cone index, draft measurement, bulk densities –Temperature measurement –Research Measurement Errors

4. Book

5. Indirect Measurement

6. Measuring Strain – Definition Indirect Measurements - Sensors

8. Gage mounting

9. Gage

10. Physical Arrangement

12. Input 5-10V, Output 5-20 ma

15. Force Measurement page 57-61

16. Load Cell – note range

19. 2 n – 3bit=8, 8bit=256, 16-bit=65536

20. Resolution of 3 bits=8 levels 2 n – 3bit=8, 8bit=256, 16-bit=65536

21. D/A page 13 – Strain gage

27. Pressure

28. Torque measurement

29. Mounting Gages

31. Temperature - $59 – 529b