- #1
Samuels-art
- 18
- 0
Dear PF,
I am hoping you can help. I am trying to test the the speed that a beetle heats up under standardized conditions. I have buried a small container in crushed ice and place a beetle and thermometer inside. I wait until the thermometer and has reached 0°C, the idea then is to increase the the temperature with a heat lamp measuring the speed that the beetles heats up and resumes to forage.
I measure time, temperature and behaviour.
Now my problem is the relatively large differences between with the actual thermometer temperature and the reading I get with the thermo-camera (Model FLIR Systems, InfraCAM (Not the newer SD version)).
I have attached a .jpg showing the differences, where the 'Temperature' is recorded as the reading from the thermometer, the 'probe' is recorded as the thermometer probe in the ice chamber and the 'beetle' is the temperature of the beetle. X axis is the time in mins (at 20mins I moved the light source closer and you can see the sharp increase in temperature). The Y axis is the temperature in degrees Celsius.
I think the extra temperature is either a fault with the camera or some kind of reflected heat getting reflected from the beetle elytra (hard out 'shell' of a beetle). I mentioned iridescence and structural colours in the title. I did this because the beetles I will be using for the experiment will be iridescent. I wanted to ask if anyone knows of any pitfalls I may have when trying to measure temperature of a structural colour that is in a convex shape.
Kind regards and many thanks in advance.
Samuel Waldron
I am hoping you can help. I am trying to test the the speed that a beetle heats up under standardized conditions. I have buried a small container in crushed ice and place a beetle and thermometer inside. I wait until the thermometer and has reached 0°C, the idea then is to increase the the temperature with a heat lamp measuring the speed that the beetles heats up and resumes to forage.
I measure time, temperature and behaviour.
Now my problem is the relatively large differences between with the actual thermometer temperature and the reading I get with the thermo-camera (Model FLIR Systems, InfraCAM (Not the newer SD version)).
I have attached a .jpg showing the differences, where the 'Temperature' is recorded as the reading from the thermometer, the 'probe' is recorded as the thermometer probe in the ice chamber and the 'beetle' is the temperature of the beetle. X axis is the time in mins (at 20mins I moved the light source closer and you can see the sharp increase in temperature). The Y axis is the temperature in degrees Celsius.
I think the extra temperature is either a fault with the camera or some kind of reflected heat getting reflected from the beetle elytra (hard out 'shell' of a beetle). I mentioned iridescence and structural colours in the title. I did this because the beetles I will be using for the experiment will be iridescent. I wanted to ask if anyone knows of any pitfalls I may have when trying to measure temperature of a structural colour that is in a convex shape.
Kind regards and many thanks in advance.
Samuel Waldron