rhd
0
- Joined
- Dec 7, 2010
- Messages
- 8,475
- Points
- 0
I'm trying to gain a working understanding of how to determine temperature based on thermistor resistance. My purpose is to be able to read the internal temperature of a Coherent Sapphire, based on thermistor leads that I have access to through the pinout.
Here's what's catching me:
- All I know about the thermistor itself, is that it is a "standard type 10K at 25C"
From what I've read, any time you want to calculate the actual temperature using a thermistor, you need some combination of additional coefficients, or a "beta" and "alpha" value. From what I've found in searching part numbers, even across multiple "10K at 25C" thermistors, there seem to be different (or a lack of) figures stated for beta/alpha.
Regardless, I know that somehow the resistance, coupled with the knowledge that this is a "standard type 10K at 25C" thermistor, has been enough information to allow temperature reading in this scenario.
Here's what's catching me:
- All I know about the thermistor itself, is that it is a "standard type 10K at 25C"
From what I've read, any time you want to calculate the actual temperature using a thermistor, you need some combination of additional coefficients, or a "beta" and "alpha" value. From what I've found in searching part numbers, even across multiple "10K at 25C" thermistors, there seem to be different (or a lack of) figures stated for beta/alpha.
Regardless, I know that somehow the resistance, coupled with the knowledge that this is a "standard type 10K at 25C" thermistor, has been enough information to allow temperature reading in this scenario.
(took 5 seconds)