We have run the sensor for 3 days continuously and fetching the data in a fixed position.And we taken the sensor values with a LED .The first value and the last value varies in the range of 1000.
Now I want to know ,what is the acceptable range to check the sensor is not degraded?
That's unexpected. How many sensors have you tested? In general, optical sensors will degrade over the years as the clear package will turn yellowish. However, the reading shouldn't vary that much in 3 days. You need a better-controlled environment, i.e. a black box, to see what causes the drift.
Thanks for your reply.
We will test as you suggested and we will see how the data variation.And what you mean about the clear package will turn yellowish
Can anyone please help me on how to approach the following two problems in physics:
1. The resistance R(Θ) of a thermister at temperature Θ (Kelvin) is given by R(Θ) = α e(β/ Θ). Given that the resistance of the thermister at the ice point (Θ = 273.15 Kelvin) is 9 Kohm and the resistance at the steam point (Θ = 373.15 Kelvin) is 0.50 Kohm:
Unfortunately, we cannot help as your question is not related to Silicon Labs' sensor products.