[Elecraft] Temperature Sensors

[Phil Hystad]

On Jun 22, 2014, at 12:06 PM, Jeff Herr <herr42 at comcast.net> wrote:

> the temp specs for the chips are all in centigrade.

In science and engineering, the "most correct" scale to use is Celsius.  This was established in the 1950s by a standard naming the Celsius scale as being the Kelvin (absolute temperature) scale minus 273.15.  If you compare the old centigrade scale to Celsius  they differ in terms of the value of freezing point versus triple point of water.

The original Celsius scale was actually the reverse of the centigrade scale where 100 was freezing point of water and 0 was boiling point of water.  But, after the death of Anders Celsius, the end points were reversed to match the centigrade and the two scales were the same until the 1950s when they received slightly different definitions with the meaning of the 0 measure on the scale.

73, phil, K7PEH*

* more of a physicist than an engineer.