Abstract:
This study is to analyze the efficiency of the type of hacksaw in wood use activities and improve the type of saw to obtain a neater wood cutting result and faster to use. Deforestation is a major problem in the world because it affects to temperature and increasing carbon dioxide .In this research, it is therefore proposed that the sound signal inspection of chainsaw which take place from deforest activity and localize the position of deforesting by using the sound signal detection of chainsaw that travels in two mediums are in the air and soil and findthe time difference which two waves in both medium travel to the observer or the detector. Which the proposed system is low complexity and energy-saving and can move easily. From the system test, it was found that the accuracy was 95%. Due to the high risks involved in using electric chainsaws, they were introduced in the non-professional and professional applications. However, they are still very dangerous and should only be used as much as possible. The
experiment involved using two factors, namely, chain tension and time of cross-cutting. The results of the experiment revealed that the use of electric saws resulted in a lower efficiency than petrol powered saws. The lower efficiency of electrical saws is caused by the reduced power of their engines. Also, the speed of chain rotation is lower than that of mechanical saws.
