Home     Contact     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
 Home      Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   

<< Back to INDEX

Measuring the Acceleration due to Gravity [Project]
posted September 29 2014 17:23.40 by Giorgos Lazaridis

Earth's gravity causes all objects (with mass) to accelerate towards its center with a fixed rate which is anything between 9.78 and 9.83 m/s2 depending on the altitude. Roughly we say that the rate of acceleration is 9.8 m/s2. And this applies to all objects regardless of the mass. Tim Gibbon made a device to measure the acceleration. A ball begins to fall. As it falls it goes through a beam of light. When the beam is cut (sensed by an LDR on the opposite side), the microcontroller starts counting the time. At the bottom end there is an MS24P/10 vibration sensor. When the ball reaches the end, the microcontroller stops counting. Then it does some math and estimates the acceleration rate. The result is shown on a converted 10mA FSD English Electric Ammeter with a 570 Ohm resistor. The instrument is calibrated for Earth, Mars and Jupiter... I'd like to see the results on Jupiter :D

The code is here.


You might also like...

Arduino clock on OLED with DS3231 precision

Police Siren Circuit using NE555 Timer [Project]

Olinuxino Nano directly controlling 4 WS2811 LED-strips [Project]

7 Physics experiments that you can do in your kitchen [Physics]

GPS - GPRS Tracker for Vehicles using Arduino [Project]

You can grow your own bacteria at home [Biology]

Creative people make cool things [Photos]

Fixing a crack in wood-paint like a pro [DIY]

<< Back to INDEX



  Email (shall not be published)


Notify me of new posts via email

Write your comments below:
BEFORE you post a comment:You are welcome to comment for corrections and suggestions on this page. But if you have questions please use the forum instead to post it. Thank you.


No comment yet...

Be the first to comment on this page!

 Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS   

Site design: Giorgos Lazaridis
© Copyright 2008
Please read the Terms of services and the Privacy policy