02753nas|a2200421 i 4500 20260818114110.0 121095s1990 th uu m rtt 00| a1eng d .b10286329 AIT RSPR no. WA-90-1 Sebayang, Sastera Flow measurement in a flat land irrigation system Bangkok : Asian Institute of Technology, 1990 72 p. Research studies project report ; no. WA-90-1 A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering of Technology Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1990 Each measurement structure in open channels measure the water flow with different performances and capabilities related to certain condition~ in the field. Most difficulties in flat land irrigation systems are in choosing the appropriate measurement structure with the limited head available. A study of Broad-crested Weirs, Flumes, Orifices and Sharp- crested Weirs has been done. The performance of structures related to accuracy of measurement, sensitivity, siltation and entrapment of debris are also studied. The sensitivity related to the shape and dimension of the structure was calibrated in the Hydraulic Laboratory. The descending structure types were found to be the most appropriate: Flumes; Broad-crested Weirs; Orifices and Sharp-crested Weirs. Irrigation Flow meters Loof, Rainer, Chairperson Suphat Vongvisessomjai, Examination Committee Paudyal, Guna N., Examination Committee Department of Public Works The Government of Indonesia, Scholarship Donor Asian Institute of Technology. Research studies project report ; no. WA-90-1 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18201 .b10286329 mnait y 240402 2 951012 m a y 0 mnait mnait mnarc 20 40 Barcode : 30050120617559 CREATED : 2013-11-06 RECORD # : i1273147x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120347215 CREATED : 2016-10-06 RECORD # : i13030516 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121028095 CREATED : 2022-10-18 RECORD # : i13408665 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 45760 45760 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT RSPR no. WA-90-1 30050120617559 2026-08-18 11:41:10 3 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no. WA-90-1 30050120347215 2026-08-18 11:41:10 2026-08-18 40 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT RSPR no. WA-90-1 30050121028095 2026-08-18 11:41:10 1 2026-08-18 20