Methods

Inspiration

What it does

This apparatus can calculate the maximum volume a cylindrical object can hold Only requirement: Positioning Object must be positioned in front of the sensor in a certain way to get accurate measurements of its radius and height Simply place an item in front of the sensor, and release the pulley to allow the sensor to find the height. It will automatically output the volume of the object once the sensor surpasses its height

How we built it

Challenges we ran into

Accomplishments that we're proud of

Convenience: Many bottles do not list their volume outside the packaging itself, so people who have had a bottle for a while may not know exactly how much it can hold Measuring manually is a hassle due to curves and having to eyeball measurements Sorting bottles: can be used with an automated sorting system to sort bottles by size Useful for recycling centers that may want to separate by size Extended Uses: Identifying controlled substances Can be paired with a scale to find the density of a liquid in a bottle, which can be used to identify potential controlled substances for inspection

What we learned

What's next for Methods

Calculating density: Due to our lack of a weight sensor, we could not implement the density calculator we initially set out to make Security applications: flagging possible illegal liquids for inspection Measuring thinner items: Could be made more accurate with smaller sensors and a more stable pulley system Increased accuracy: A proper pulley system using a motor would allow for more consistent speeds More accurate measurements of height Motion sensors, rather than manipulating the ultrasonic sensor measurements, would have more accurate readings

Built With

• arduino
• c