Development of circuit cooperate with condenser microphone and amplifier with detecting the sound directly
Lai, Anthony; Look, Morgan; Holmes, Wayne; Sidhu, Deepinder; Yan, Ashley
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Citation:Lai, A., Look, M., Holmes, W., Sidhu, D., & Yan, H. (2020, October). Development of circuit cooperate with condenser microphone and amplifier with detecting the sound directly. Paper presented at the Unitec Research Symposium, Te Puna Mt Albert Campus, Unitec Institute of Technology
Permanent link to Research Bank record:https://hdl.handle.net/10652/5014
The paper aims to design circuit of detection sensor with condenser microphone to minimize water leakage. Water leakage is a significant problem in all pipeline network. The concept of sound detector has been further developed in measurement and as detectors in such applications as industrial. The detection sensor is designed based on LM833 amplifier design. The unit detects sound to a wide frequency range caused by water leakage within a range of distance. Condenser microphone has sensitivity within -58dB, -62dB and -68dB. The design unit able to detect the frequency response in between 100 Hz and 8KHz. The directivity of condenser microphone is in omnidirectional. The system can be installed around the water pipe. It is possible to detect how serious of water leakage based on the sound produced by using different size of nozzles in the laboratory.