LinuxCNC Documentation

SYNOPSIS

thermistor

DESCRIPTION

This component computes the temperature indicated by a thermistor in a voltage-divider ladder. It uses the Beta-parameter variant of the Steinhart-Hart equation, described here:

http://en.wikipedia.org/wiki/Thermistor

PINS

thermistor.N.t0-c real in

Reference temperature of the thermistor, in degrees Celsius (typically 25 C). This must be set before the component can compute the thermistor temperature. The reference temperature information is supplied by the thermistor manufacturer.

thermistor.N.r0 real in

Resistance of the thermistor at the reference temperature. This must be set before the component can compute the thermistor temperature. The reference resistance information is supplied by the thermistor manufacturer.

thermistor.N.beta real in

Beta parameter of the thermistor (sometimes just called B). This must be set before the component can compute the thermistor temperature. The Beta parameter is supplied by the thermistor manufacturer.

thermistor.N.r-other real in

Resistance of the other resistor in the voltage-divider ladder. This must be set before the component can compute the thermistor temperature.

thermistor.N.v-total real in

Supply voltage of the voltage-divider ladder.

thermistor.N.v-thermistor real in

Voltage drop across the termistor.

thermistor.N.temperature-c real out

Temperature sensed by the thermistor, in degrees Celsius.

thermistor.N.temperature-k real out

Temperature sensed by the thermistor, in Kelvins.

thermistor.N.temperature-f real out

Temperature sensed by the thermistor, in degrees Fahrenheit.

thermistor.N.resistance real out

Computed resistance of the thermistor.

LICENSE

GPL