Contact Microphone Water Monitoring System
Abstract/Contents
- Abstract
- Water is a valuable, yet scarce resource in various parts of the globe. As water reserves dry up and rainfall decreases yearly, we are promoting water conservation within the residential setting to protect our wildlife and reduce the price of monthly water bills. In collaboration with Amazon’s Lab126, we are creating an affordable and easy-to-install water monitoring system for renters and homeowners to track their water consumption in units of time. We optimized a 3D printed enclosure to house a piezoelectric contact microphone and detect water flow via the surface vibrations on a pipe. The duration of water flowing correlates with the duration of the piezoelectric microphone’s signal output. The signal is measured in both the amplitude of voltage and frequency. The enclosure underwent iterative testing along three different sections of a sink’s flexible supply hose and at three different flow rates. By using an oscilloscope, we verified our tests produced significant voltage waveforms representing the presence of active water flow. In future work, we will house additional electronics like an Arduino microcontroller and apply Fast-Fourier Transforms to discern the water flow’s particular frequency from the output waveforms.
Description
| Type of resource | text |
|---|---|
| Date modified | December 5, 2022 |
| Publication date | March 17, 2022; 2022 |
Creators/Contributors
| Author | Lugardo, Jennifer |
|---|---|
| Author | Rodriguez Ramirez, Ruben |
| Author | Aceves, Abraham |
| Author | Chen, Catherine |
| Thesis advisor | Howard, John |
| Thesis advisor | Wang, Celine |
| Funder | Amazon Lab 126 |
| Organizer of meeting | Dunn, Lorenzo |
| Organizer of meeting | Kapur, Ayush |
| Organizer of meeting | Devaney, Juliette |
Subjects
| Subject | Mechanical engineering |
|---|---|
| Subject | Piezoelectric Microphone |
| Subject | Contact Microphone |
| Subject | Water consumption |
| Subject | Water conservation |
| Subject | Product design |
| Genre | Text |
| Genre | Report |
Bibliographic information
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- Use and reproduction
- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 4.0 International license (CC BY-NC).
Preferred citation
- Preferred citation
- Lugardo, J., Rodriguez Ramirez, R., Aceves, A., and Chen, C. (2022). Contact Microphone Water Monitoring System. Stanford Digital Repository. Available at https://purl.stanford.edu/wf102cj4877
Collection
ME170 Mechanical Engineering Design
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