Abstract
The novel measurement system for soil clod fineness developed by this research was installed in a tractor, with real-time measurement of soil surface irregularity conducted during rotary tillage operation. After real-time measurement, the irregularity of the tilled lane was measured by a stationary measurement system, and the calculated soil clod fineness was compared with that from real-time measurement. To clarify the influence of vibration on the system installation mechanism and on laser displacement sensor output, the vibration acceleration during tillage was also measured. The results verified the effect of vibration absorption on the system installation mechanism, and both the soil clod fineness obtained from the system loading type and the fixed-type system showed almost the same value.
