Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Create a circuit that includes a sensor, which in turn will enable me to measure the volume of liquid in a container by reading the voltage from a voltmeter.
Member rating: No Rating | Words: | Submitted: Wed Apr 21 2004
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Planning Aim: The aim of this investigation is to create a circuit that includes a sensor, which in turn will enable me to measure the volume of liquid in a container by reading the voltage from a voltmeter. Plan: 1. I could use many methods to pick up a change in water level in a container. I could use a rotary potentiometer and attach it to a metal rod, then fix a cork to the metal rod, which will be used as the float that will rise with water level. I will need to use a potential divider in the circuit in order to pick up the changes in resistance, which will cause the voltage to rise or fall. 2. I could also use a length of wire, which, as it becomes immersed in water causes changes in its conductance and therefore changes in its resistance and the voltage across the circuit....
To see the full version of this document, and 145,320 others
