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Study On Soil Digging System Applied for A Soil Sampling Vehicle
|作者:||游正豪||關鍵字:||soil sampling mechanism;採土機構;diminish vibration;NIR;減振;近紅外光||出版社:||生物產業機電工程學系||摘要:||
Using the human power to sample soil in the field takes time and tremendous effort. To solve this problem, soil sampling automation is essential and workable. The objectives of this study were to develop a soil sampling system and NIR system of diminish vibration mechanism applied on a soil sampling vehicle to replace traditional work in the field. The soil sampling system using the PLC makes the automatic possible. The purpose of setting the diminish vibration mechanism is to reduce the vibration on the NIR system to ensure the accuracy of the measuring spectrum value.
The prototype of soil sampling system was developed and tested in the field. A relief valve was installed in the hydraulic system having a maximum hydraulic pump power of 5.5 N/mm2 to ensure the safety. For the test of soil grabbing mechanism, the moisture contents for surface and bottom layer soil in the sampling field were 21.5% and 22.77%, and the successful rate were 50% and 100%, respectively. The efficiency of the soil digging mechanism was 5.6 times higher than labor work.
Under vibration condition to test the NIR system, constrained optical instruments had less error than non-constrain type. As the generator and the engine of the soil sampling vehicle worked at the same time, a damper was designed and installed under the NIR box could help reduce measuring errors.
|Appears in Collections:||生物產業機電工程學系|
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