Optical Power Measurement by using Piezo Microphone
Conference paper > Full Text · 2019
Authors: İBRAHİM İNAN, ELİF İCLAL ÖZDEMİR, Yavuz ÖZTÜRK
2019 Innovations in Intelligent Systems and Applications Conference (ASYU), Turkey, İzmir, International, Verbal, Full Text, 2019-2019, pp 1-4
DOI: 10.1109/asyu48272.2019.8946404
Summary
In this study, light power measurement was performed using a piezoelectric microphone with the principle of photo-acoustic effect. The piezo microphone was excited with an 808 nm laser diode modulated by square wave of frequency 20 Hz. The peak-to-peak value of the laser power was set in the range of 0-30 mW. Sensor was linear in this power range and sensitivity of the sensor was found to be 0.023V/W.