| dc.description.abstract | Indonesia is rich in natural wealth. One natural wealth is spices, which can be used as traditional medicine. The use of spices as Traditional medicine shows that, from the past until now, Indonesians have believed in the properties of natural medi-cines. Spices can be processed to produce traditional oils. To be able to detect the aroma of traditional oils, the electronic nose system is designed by utilizing gas sen-sors, namely MQ 4, MQ 7, MQ 9 and MQ 136. The aroma of traditional oils in the form of Kudus oil, Spice oil and Kayu Putih Cap Ayam oil will be detected when they are added. to the sample room. Changes in the value of the sensor voltage indicate that an aroma is detected. All sensors show a good response to the sample. The high-est response value is shown by the MQ 4 sensor for all tested traditional oil samples. The magnitude of the change in voltage across the MQ 4 sensor is 0.89 V; 0.81 V and 0.84 V for Holy oil, Spices and Eucalyptus chicken stamp. For all sensors, Kudus oil showed the highest response among other oils | en_US |
