Hi all.
OK this is pretty weird guys.
I finally got around to repairing my expensive Bull Electrical "fisheye" 1cm2 IR sensor which has had the filter carefully removed.
What happened was that the two bond wires were damaged and went open about a month after I'd done the surgery on the sensor (facepalm)
Did a patch up job with silver paint, Superglue (I never learn do I!) and baking soda, problem is history.
So anyway, I did some tests with the newly repaired module and my mystery Bluray Ebay diode which claims to be a 200mW burner.
With the PS3 sensor and optimally focussed glass lens I got the following.
363uA at 56.8mA in
375uA at 57.2mA in
409uA at 60.0mA in
466uA at 63.2mA in
652uA at 76.9mA in
964uA at 98.7mA in
1220uA at 123.8mA in
1364uA at 137.2mA in
1465uA at 145.0mA in
Dropped power back down and confirmed no power drift.
Based on this it looks like this sensor has a response of 10uA/mW.
Repeated test with my fisheye sensor and glass half sphere lens, same setup with glass 405 Ebay lens.
0.02mA (20uA) offset
2.57mA at 56.5mA in
3.15mA at 63.9mA in
3.79mA at 76.7mA in
4.31mA at 98.6mA in
4.54mA at 123.6mA in
5.25mA at 136.7mA in
BUT here is the kicker.
Replaced 405 Ebay glass lens with el cheapo one which came with the aixiz.
2.57mA at 57.1mA in
3.25mA at 64.2mA in
4.38mA at 77.2mA in
5.65mA at 98.7mA in
6.02mA at 113.5mA in
This is more than a 20% increase in power at the highest settings, yet at low power the cheap lens behaves exactly the same as the glass expensive £7 one.
Any ideas? I have ruled out movement of the components as this would have affected the performance when I dropped power back down to 57.1mA which did not occur.
Thanks in advance,
-A
:thanks:
OK this is pretty weird guys.
I finally got around to repairing my expensive Bull Electrical "fisheye" 1cm2 IR sensor which has had the filter carefully removed.
What happened was that the two bond wires were damaged and went open about a month after I'd done the surgery on the sensor (facepalm)
Did a patch up job with silver paint, Superglue (I never learn do I!) and baking soda, problem is history.
So anyway, I did some tests with the newly repaired module and my mystery Bluray Ebay diode which claims to be a 200mW burner.
With the PS3 sensor and optimally focussed glass lens I got the following.
363uA at 56.8mA in
375uA at 57.2mA in
409uA at 60.0mA in
466uA at 63.2mA in
652uA at 76.9mA in
964uA at 98.7mA in
1220uA at 123.8mA in
1364uA at 137.2mA in
1465uA at 145.0mA in
Dropped power back down and confirmed no power drift.
Based on this it looks like this sensor has a response of 10uA/mW.
Repeated test with my fisheye sensor and glass half sphere lens, same setup with glass 405 Ebay lens.
0.02mA (20uA) offset
2.57mA at 56.5mA in
3.15mA at 63.9mA in
3.79mA at 76.7mA in
4.31mA at 98.6mA in
4.54mA at 123.6mA in
5.25mA at 136.7mA in
BUT here is the kicker.
Replaced 405 Ebay glass lens with el cheapo one which came with the aixiz.
2.57mA at 57.1mA in
3.25mA at 64.2mA in
4.38mA at 77.2mA in
5.65mA at 98.7mA in
6.02mA at 113.5mA in
This is more than a 20% increase in power at the highest settings, yet at low power the cheap lens behaves exactly the same as the glass expensive £7 one.
Any ideas? I have ruled out movement of the components as this would have affected the performance when I dropped power back down to 57.1mA which did not occur.
Thanks in advance,
-A
:thanks:
