Color sensor measurement problem

[thavamaran]

Hi guys, I am currently undergoing some measurement with TCS230 light to frequency converter, its actually a cmos color sensor, so the measurement result was made in period measurement.

For white the output was not almost the same, but actually according to bitmap resolution, the R,G,B value for white is 255,255,255, but through this sensor, the output frequency is not really that similar, it actually varies. and for black its suppose to be R,G,B=0,0,0 and the output of the sensor is not really similar.

same when i place the sensor on Red which is R,G,B=255,0,0 and there is no green or blue intensity on this particular color, but still I am getting output reading. so i need suggestion that what would be the problem? i feel its related to physics.
here is the link for datasheet of the sensor I am using. thank you.
http://www.w-r-e.de/robotik/data/opt/tcs230.pdf"

 

[dlgoff]

Look at the data sheets PHOTODIODE SPECTRAL RESPONSIVITY. Do you not see that the three color overlap?

 

[oswaler]

Hello, thank you for sharing your measurement problem with the TCS230 color sensor. Based on the information you have provided, it seems like there may be some discrepancies between the expected RGB values and the output frequency of the sensor. This could be due to a few different factors, including the accuracy and sensitivity of the sensor, as well as potential interference from external light sources or electrical noise.

To troubleshoot this issue, I would recommend checking the sensor's datasheet for any recommended calibration procedures or adjustments that may improve the accuracy of the measurements. Additionally, make sure that the sensor is shielded from any external light sources and that the connections are secure and free from interference.

It is also possible that the sensor itself may have some limitations in accurately measuring certain colors, especially if they are very saturated or have a narrow spectral range. In this case, you may need to consider using a different sensor or adjusting your experimental setup to account for these limitations.

Overall, it is important to carefully consider the limitations and potential sources of error in your measurement setup and to make any necessary adjustments to ensure accurate and reliable results. I hope this helps and good luck with your experiments. Thank you for sharing your question and the link to the datasheet.