How to calibrate a sensor?????

Thread Starter

mrudul

Joined Jul 25, 2010
26
Hai, i have constructed a simple light sensor using ldr, the output is amplified and given to micro-controller. I want to calibrate the sensor but i dont know how to calibrate the sensor. Can you help me to calibrate it????????????????
 

mcgyvr

Joined Oct 15, 2009
5,394
Provide the sensor with a repeatable/fixed light source and set the output to what you want.
Like using a light bulb and always setting the sensor a fixed distance from it.
 

mcgyvr

Joined Oct 15, 2009
5,394
yes its all about how accurate do you need it to be..
Very accurate=$$$ for accurate photometers,etc...

Like KMoffett said you need to determine what level of accuracy you need and what is the purpose of your measurements.
 
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