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Sensor Physics
Physics - How do I work out the resolution of my sensor?
I have made a potentiometer into a device that can measure angles, however I need to work out the resolution of the sensor. I have worked out the sensitivity fine but I am confused with resolution.
The smallest angle I can measure is one degree and the smallest voltage output that I can see is 0.01V
I know that resolution is to do with the smallest change but do not know the equation to work it out.
In-case it helps, I am measuring angles between 0 and 180 degrees and my voltage has a range between 0.25 to 1.97.
Thanks in advance! 
why do u need an equation in this case? u know 1 degree is the smallest detectable change in input. and hence resolution is 1 degree.
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What type of sensor do I need. Physics simple lab?
I have an experiment in which I have to calculate the time it takes for a weight to falls a certain distance and I would like to know what the type of sensor I could use.
Due to the procedure of the experiment I need the sensor to detect a particular part of the weight and for this reason an object( i dont know what) could be attached to the weight. Could I use an infra red sensor that measures the temperature of this specific object which is attached to the weight?
If not what else?
Thank You
1. Use a movie camera or camcorder and count the frames between the start and stop events
2. Use two photo sensors
3. Use two electromagnetic sensors.
4. Use a tape with time marks.
Please note that measuring a temperature is not a good idea for a number of reasons.
Have fun
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