Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Temperature Sensors - Comparing Types

Comparing advantages and disadvantages of thermocouples, RTDs and thermistors temperature sensors

Sponsored Links
AttributeThermocoupleRTDThermistor
Cost Low High Low
Temperature Range Very wide
-350oF
+3200oF
Wide
-400oF
+1200oF
Short to medium
-100oF
+500oF
Interchange ability Good Excellent Poor to fair
Long-term Stability Poor to fair Good Poor
Accuracy Medium High Medium
Repeatability Poor to fair Excellent Fair to good
Sensitivity (output) Low Medium Very high
Response Medium to fast Medium Medium to fast
Linearity Fair Good Poor
Self Heating No Very low to low High
Point (end) Sensitive Excellent Fair Good
Lead Effect High Medium Low
Size/Packaging Small to large Medium to small Small to medium
  • A thermocouple has two dissimilar conductors forming electrical junctions at differing temperatures. The thermocouple produces a temperature-dependent voltage as a result of the thermoelectric effect and can be interpreted as a temperature measurement.
  • A RTD - Resistance Thermometer Detector - are made of a length of fine wire wrapped around a ceramic or glass core. The RTD wire is of pure material - typically platinum, nickel, or copper - with an accurate resistance/temperature relationship. The electrical resistance provides an indication of the temperature.
  • A thermistor is a type of resistor made of ceramic or polymer materials. The resistance is - like the RTD - dependent on temperature.
Sponsored Links

Related Topics

Related Documents

Sponsored Links

Share

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Topics

Unit Converters

Temperature

oC
oF


Load Calculator!

Length

m
km
in
ft
yards
miles
naut miles


Load Calculator!

Area

m2
km2
in2
ft2
miles2
acres


Load Calculator!

Volume

m3
liters
in3
ft3
us gal


Load Calculator!

Weight

kgf
N
lbf


Load Calculator!

Velocity

m/s
km/h
ft/min
ft/s
mph
knots


Load Calculator!

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O


Load Calculator!

Flow

m3/s
m3/h
US gpm
cfm


Load Calculator!

9 13

This website use cookies. By continuing to browse you are agreeing to our use of cookies! Learn more