S1302-1-2 Development of Concentration Sensor for Automatic Quality Control of Water-soluble Coolant

To reduce the management cost and environmental load of water-soluble coolant, it is effective to extend the live time of coolant. In order to extend the lifetime of water-soluble cutting coolant, user must observe and maintain the quality of coolant. Especially, the concentration of water-soluble coolant fluctuates greatly. However, the conventional water-soluble coolant concentration monitoring method is unfit for automatic measurement. In this study, we propose a newly developed concentration sensor for water-soluble coolant. The sensor measures the concentration of the water-soluble coolant in the storage tank at all times. In this report, we examined the basic performance and problems of the developed sensor.