2012 年 2012 巻 SAI-015 号 p. 05-
Sugar content is a key factor of the delicacy which consumers demand of farm product such as fruit and tomato. Improvement of the sugar content is important because it influence a price and quality in the market. However, measurement about the influence of the growth process and the environmental condition of farms on sugar content is not fully performed. In order to improve the quality of farm product, we attempt to develop the sugar content monitor which measures the sugar content of object vegetables or fruit continuously at the farm by remote control.