S
[email protected]
- Jan 1, 1970
- 0
I'm pretty new to thermal sensing and such, but I have a friend who
wishes me to make/aquire 3 types of temperature sensors, all with
greater than .1 degree celsius accuracy.
1) Ambient temperature
2) Contact temperature
3) Radiation temperature (a "directional" sensor of sorts which detects
IR radiation coming from a source). A further requirement is that if
this sensor (or array of sensors) can tell me the temperature /amount
of radiation in each Thermal IR band within 8.125 to 11.60 Micrometers
(total 5 bands within this bandwidth)(This should preferable correspond
to a satellite sensor band seperation, as he is doing some urban heat
phenomenon research).
I've done some experiments with NTC Thermistors before-I did some
interfacing to the PC joystick port. I thought maybe I can use the same
NTC thermistor for the above uses? Is the thermistor meant for "such"
sensitive work? (If I uses a better ADC)..and can I modify it in some
way to measure the radition temperature as well? (by adding some sort
of parabola?!)
It would be best if I can get cheap sensor(s) which I can interface
myself (to the PC), but worst comes I can buy one/seperate standalone
devices which preferable have some sort of computer connectivity and
some memory.
Many thanks
Suraj
wishes me to make/aquire 3 types of temperature sensors, all with
greater than .1 degree celsius accuracy.
1) Ambient temperature
2) Contact temperature
3) Radiation temperature (a "directional" sensor of sorts which detects
IR radiation coming from a source). A further requirement is that if
this sensor (or array of sensors) can tell me the temperature /amount
of radiation in each Thermal IR band within 8.125 to 11.60 Micrometers
(total 5 bands within this bandwidth)(This should preferable correspond
to a satellite sensor band seperation, as he is doing some urban heat
phenomenon research).
I've done some experiments with NTC Thermistors before-I did some
interfacing to the PC joystick port. I thought maybe I can use the same
NTC thermistor for the above uses? Is the thermistor meant for "such"
sensitive work? (If I uses a better ADC)..and can I modify it in some
way to measure the radition temperature as well? (by adding some sort
of parabola?!)
It would be best if I can get cheap sensor(s) which I can interface
myself (to the PC), but worst comes I can buy one/seperate standalone
devices which preferable have some sort of computer connectivity and
some memory.
Many thanks
Suraj