TY - GEN
T1 - Design of digital lock-in amplifier for low concentration gas detection
AU - Rahmannuri, Handi
AU - Rivai, Muhammad
AU - Sardjono, Tri Arief
N1 - Publisher Copyright:
©/2017/IEEE.
PY - 2017/11/28
Y1 - 2017/11/28
N2 - In a measurement system, it is sometimes necessary to extract very small sensor signals from noise. This study performs a digital lock-in amplifier implemented on an ARM Microcontroller for detecting low concentration gas. This lockin system has the ability to increase the sensitivity or signal to noise ratio. In the experiment, the lock-in system with the varies gain and cutoff frequency. The sensitivity and the signal to noise ratio can be considerably improved by means of the proposed system. The results showed that the signal to noise ratio of the original signal and the lock-in system with the unity gain were -4.73 dB and 4.08 dB, respectively. The higher gain implemented on the lock-in system would produce the higher signal to noise ratio. The lock-in system has also been tested for detecting of carbon monoxide gas resulting a signal to noise ratio of the gas sensor and the lock-in system are 3.9 and 15.6 dB, respectively.
AB - In a measurement system, it is sometimes necessary to extract very small sensor signals from noise. This study performs a digital lock-in amplifier implemented on an ARM Microcontroller for detecting low concentration gas. This lockin system has the ability to increase the sensitivity or signal to noise ratio. In the experiment, the lock-in system with the varies gain and cutoff frequency. The sensitivity and the signal to noise ratio can be considerably improved by means of the proposed system. The results showed that the signal to noise ratio of the original signal and the lock-in system with the unity gain were -4.73 dB and 4.08 dB, respectively. The higher gain implemented on the lock-in system would produce the higher signal to noise ratio. The lock-in system has also been tested for detecting of carbon monoxide gas resulting a signal to noise ratio of the gas sensor and the lock-in system are 3.9 and 15.6 dB, respectively.
KW - ARM microcontroller
KW - Digital lock-in amplifier
KW - Low concentration gas
UR - http://www.scopus.com/inward/record.url?scp=85043601479&partnerID=8YFLogxK
U2 - 10.1109/ISITIA.2017.124102
DO - 10.1109/ISITIA.2017.124102
M3 - Conference contribution
AN - SCOPUS:85043601479
T3 - 2017 International Seminar on Intelligent Technology and Its Application: Strengthening the Link Between University Research and Industry to Support ASEAN Energy Sector, ISITIA 2017 - Proceeding
SP - 319
EP - 322
BT - 2017 International Seminar on Intelligent Technology and Its Application
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th International Seminar on Intelligent Technology and Its Application, ISITIA 2017
Y2 - 28 August 2017 through 29 August 2017
ER -