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
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 4 pm – Seminar at USAID Center
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
Book
Indirect Measurement
Measuring Strain – Definition Indirect Measurements - Sensors
Gage mounting
Gage
Physical Arrangement
Input 5-10V, Output 5-20 ma
Force Measurement page 57-61
Load Cell – note range
2 n – 3bit=8, 8bit=256, 16-bit=65536
Resolution of 3 bits=8 levels 2 n – 3bit=8, 8bit=256, 16-bit=65536
D/A page 13 – Strain gage
Pressure
Torque measurement
Mounting Gages
Temperature - $59 – 529b