1991 Volume 53 Issue 6 Pages 23-31
The measurement of field is one of the important points for the field work automation. In this study, an ultrasonic sensor was used as the device for measuring field profile with non-contact method. The three dimensional profile measuring system was composed of a measuring frame similar to an agricultural gantry system, and of the ultrasonic sensor. In this research, rectangular parallel pipes, an inclined plate, and circular cylinders were measured for the fundamental study. The field profile was also measured. The results showed that the rectangular parallel pipes and the inclined plate were measured exactly, but circular were difficult to be measured exactly. The field profile on which the water was sprayed was measured exactly.
