KARAKTERISTIK LM35 SEBAGAI SENSOR SENTUH CEPAT UNTUK MENGUKUR TEMPERATUR TUBUH MANUSIA

Muhammad Rizali

Abstract


Pandemi Covid-19 telah banyak merubah kondisi hidup manusia, dimana salah satunya adalah diterapkannya protokol kesehatan. Pada protokol kesehatan, untuk dapat memasuki tempat umum atau gedung-gedung, disyaratkan untuk selalu memeriksa temperatur tubuh orang yang hendak masuk, dimana orang dengan temperatur tubuh tinggi maka tidak diperbolehkan masuk. Pemeriksaan temperatur tubuh memerlukan petugas yang selalu berjaga memeriksa, dan petugas tersebut juga selalu berdekatan dengan orang banyak, sehingga petugas tersebut juga rentan terhadap penularan Covid-19. Pada penelitian ini disarankan untuk menggunakan sensor LM35 untuk mendeteksi temperatur tubuh secara otomatis, dikarenakan sensor ini stabil digunakan dan harganya murah. Untuk mengukur temperatur tubuh manusia, sensor LM35 akan disentuh dengan ujung jari tangan selama 10 detik, kemudian temperatur yang terbaca tersebut akan dikonversi/dikalibrasi sehingga akan menunjukkan temperatur dahi manusia. Alat yang digunakan pada penelitian ini adalah arduino, sensor LM35dan thermogun. Hasil yang didapatkan adalah temperatur jari lebih rendah dari temperatur dahi, sehingga diperlukan angka kalibrasi. Dengan penambahan 4,34◦C ke bacaan sensor LM35. Nilai toleransi hasil bacaan sensor terhadap temperatur dahi sebenarnya adalah 5%.

Kata kunci:Sensor LM35, temperatur, tubuh manusia, sensor sentuh

CHARACTERISTICS OF THE LM35 AS QUICK CONTACT SENSOR FOR MEASURing HUMAN BODY TEMPERATURE

The Covid-19 pandemic has changed the conditions of human lifestyle, one of which is the implementation of health protocols. In the health protocol, to be able to enter places or buildings, it is required to always check the body temperature of people who want to enter, where people with high body temperature are not allowed to enter. Examination of body temperature requires officers who are always on strict vigil, and these officers are also always connected with the crowd, so these officers are also vulnerable to Covid-19 transmission. In this study, we suggested to use the LM35 sensor to measure body temperature automatically, because this sensor is stable in use and cheap. To measure human body temperature, the LM35 sensor will be touched with the fingertips for 10 seconds, then the temperature will be calibrated so that it will show the temperature of the human forehead. The tools used in this study were Arduino, LM35 sensor and thermogun. The result obtained is a fingertip temperature is lower than the temperature of the forehead, so a calibration number is needed. With the addition of a sensor to a reading of 4.34°C LM35. The tolerance value of the sensor reading to the actual forehead temperature is 5%.

Keywords: LM35, temperature, human body, touch sensor


 


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References


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