Audio Analysis for Different Temp. of Poured Water
For the final project for UCLA's PHYS 4BL course (Physics Laboratory for Scientists and Engineers: Electricity and Magnetism), our group investigated the audio differences between poured water at different bulk temperatures, inspired by a video demonstration by science YouTubers Steve Mould and Tom Scott.
Using an Arduino thermistor probe and audio recording device for data acquisition, trials involved pouring water of temperature increments of 10°C from 0°C to 100°C in a cup to record its sound. Data analysis included creating a spectrogram from the pours and investigating differences between the sounds.
My role in the group was to perform data trials and determine the precision uncertainty and error in the thermistor values. Though the data had a high degree of uncertainty, our group concluded the main difference in the sounds were the peak frequency of the sound produced by trials. After the project, I investigated the physical principles which may explain this, and found that the viscosity of the water at different temperatures likely affected the frequency of the pour.
Using an Arduino thermistor probe and audio recording device for data acquisition, trials involved pouring water of temperature increments of 10°C from 0°C to 100°C in a cup to record its sound. Data analysis included creating a spectrogram from the pours and investigating differences between the sounds.
My role in the group was to perform data trials and determine the precision uncertainty and error in the thermistor values. Though the data had a high degree of uncertainty, our group concluded the main difference in the sounds were the peak frequency of the sound produced by trials. After the project, I investigated the physical principles which may explain this, and found that the viscosity of the water at different temperatures likely affected the frequency of the pour.
Comments