no_os_rtd.h File Reference

Header file of RTD temperature conversion routines. More...

Functions
double	no_os_pt1000_resistance_to_temp (double resistance)
	Callendar-Van Dusen equation for Pt1000 RTD (IEC 60751). Converts RTD resistance (Ohms) to temperature (°C). For T < 0°C a Newton-Raphson refinement loop is applied to account for the cubic C term.

Detailed Description

Header file of RTD temperature conversion routines.

Author

Mircea Vlasin (mirce.nosp@m.a.vl.nosp@m.asin@.nosp@m.anal.nosp@m.og.co.nosp@m.m)

Copyright 2026(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Function Documentation

no_os_pt1000_resistance_to_temp()

double no_os_pt1000_resistance_to_temp

(

double

resistance

)

Callendar-Van Dusen equation for Pt1000 RTD (IEC 60751). Converts RTD resistance (Ohms) to temperature (°C). For T < 0°C a Newton-Raphson refinement loop is applied to account for the cubic C term.

Parameters

resistance

- Measured RTD resistance in Ohms.

Returns

Temperature in degrees Celsius, or -999.0 on domain error.