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Uniform Travel Speed for Manually Propelled Sprayers and Spreaders 1
Author(s) -
Wolf D. D.,
Edmisten K. L.
Publication year - 1986
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1986.00021962007800010042x
Subject(s) - metronome , traverse , operator (biology) , stride , computer science , coefficient of variation , simulation , mathematics , acoustics , physics , geodesy , rhythm , statistics , geology , chemistry , biochemistry , computer security , repressor , transcription factor , gene
Accurate application of solutions from sprayers and of granules from spinner spreaders requires a known constant speed of travel. Use of a commercially available pocket‐size audio metronome is described to aid the operator in maintaining a desired speed. The metronome was powered by a 9‐V battery and was carried in a shirt pocket. The tempo of the metronome was adjusted so that the operator traversed a known course length in a specified time period. For example, 24 s to traverse 26.8 m would be equivalent to 4 km h −1 . The tempo set by the metronome varied depending on the stride length of the operator. Coefficient of variation with metronome pacing was 1.7% and without the metronome was 3.7%. A method for calibrating walking speeds using a metronome is described.