Rancang Bangun Alat Ukur Tingkat Kerusakan Oli Mesin Berdasarkan Konstanta Dielektrik Berbasis PC

Abstract

Has conducted an identification of changes in the level of damage to the engine oil by identifying changes in the dielectric constant indicated the output voltage changes the occur in a system tool that has been designed and constructed. Capasitive transducer is made by utilizing the conductor plate parallel to indentify changes in the dielectric medium using sinusoidal electric wave propagation. Observations carried out by measuring the amplitude of the wave attenuation due to the interaction of the sample medium engine oil. Electrical waves have been generated by the oscillator circuit using XR2206 IC with a frecuency of 50 KHz which have shown the voltage difference of each sample of the engine oil. Tests one performed on five samples of engine oil with an equal volume of 200 ml, among others: fresh engine oil, a mixture of 150 ml fresh oil and 50 ml bad oil (mixture 1), a mixture of 100 ml fresh oil and 100 ml bad oil (mixture 2), a mixture of 50 ml fresh oil and 150 ml bad oil (mixture 3), and bad engine oil. The test results demonstrate the tool system with voltage values 2,814; 2,856; 2,914; 2,986; 3,022 volts respectively with a rising trend. Has obtained a higher voltage value relationship of the tool system, the higher the degree of damage to the engine oil. Voltage changes due to changes in the dielectric constant of each sample of the engine oil.