Pages: [1]   Go Down
Author Topic: MLX90614ESF-AAA  (Read 572 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Sr. Member
****
Karma: 0
Posts: 403
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I just bought this sensor
http://www.pololu.com/catalog/product/1061
I programed it and it works great.
The only thing I notice is that it has a wide viewing angle and averages all the temperatures so if there is something really hot but small like a candle flame it doesn't really provide the true temperature unless it is about an inch away. is there anyway to decrease it's field of view? could a lens be used?

thank you for you help.
Logged

Global Moderator
UK
Offline Offline
Brattain Member
*****
Karma: 291
Posts: 25874
I don't think you connected the grounds, Dave.
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Or a slit?
Logged

"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

Offline Offline
Sr. Member
****
Karma: 0
Posts: 403
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I tried that and it averages the area that is covered with the area of the slit so a 200 degree light bulb registered at 80 degrees at 2 inches.
Logged

UK
Offline Offline
Shannon Member
****
Karma: 223
Posts: 12577
-
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

If you can find something that reflects infrared then you could put a parabolic reflector behind the sensor (and turn the sensor back to front). I'm not sure where you'd find a suitable reflector though - perhaps you could find a reflective lamp bulb that reflects IR well? I'm not sure how easy those would be to find, but if all else fails I know that IR reflector lamps do exist.
Logged

I only provide help via the forum - please do not contact me for private consultancy.

Offline Offline
Newbie
*
Karma: 0
Posts: 6
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

This is an old topic, but, felt it was worth noting that this IR sensor comes in different versions including FOV. As I ran into the same issues as the OP.

The AAA designates which of the features it has, so AAA: 5v-Single Zone-Standard Package (which is 35°)

(1) Supply Voltage/ Accuracy
A - 5V
B - 3V
C - Reserved
D - 3V medical accuracy

(2) Number of thermopiles:
A – single zone
B – dual zone
C – gradient compensated*

(3) Package options:
A – Standard package
B – Reserved
C – 35° FOV
D/E – Reserved
F – 10° FOV
G – Reserved
H – 12° FOV (refractive lens)
I – 5° FOV
Logged

Pages: [1]   Go Up
Jump to: