Hi,
Have several temperature related circuits but like all thermometers you always find variations between different units.
Have been looking for a reference unit for 0 to 50c, so I can check out the whole range and not just 25c.
Most sensors like the LM35, SHT15 while appearing to have a close tollerance of +-0.5c it is actually only at 25c and over the range mentioned this can increase to +- 1.0c or more.
The DS18B20 seems to offer +-0.5C over its full range but wondered if there is a better sensor around, though looking at the pages of sensors in the Farnells catalogue it seems the best...?
thanks.
Have several temperature related circuits but like all thermometers you always find variations between different units.
Have been looking for a reference unit for 0 to 50c, so I can check out the whole range and not just 25c.
Most sensors like the LM35, SHT15 while appearing to have a close tollerance of +-0.5c it is actually only at 25c and over the range mentioned this can increase to +- 1.0c or more.
The DS18B20 seems to offer +-0.5C over its full range but wondered if there is a better sensor around, though looking at the pages of sensors in the Farnells catalogue it seems the best...?
thanks.