National Physical Laboratory

What are the operating characteristics of different types of force transducer? (FAQ - Force)

The figures in the table below represent typical characteristics but force transducers and force measurement systems will often operate outside these ranges with increased measurement uncertainty.

Force transducer types and their broad characteristics

Device type Typical range of rated capacities Typical total uncertainty
±% fso
Temperature sensitivity
% fso per °C
(operating range)
Strain gauge load cells: semiconductor 1 N to 10 kN 0.2 to 1 0.2 to 0.5
(-40°C to +80°C)
Strain gauge load cells: thin film 0.1 N to 100 N 0.02 to 1 0.02
(-40°C to +80°C)
Strain gauge load cells: foil 5 N to 50 MN 0.02 to 1 0.0015
(-40°C to +80°C)
Piezoelectric crystal 1.5 mN to 120 MN 0.3 to 1 0.02
(-190°C to +200°C)
Hydraulic 500 N to 5 MN 0.25 to 5 0.02 to 0.1
(5°C to 40°C)
Pneumatic 10 N to 500 kN 0.1 to 2 0.02 to 0.1
(5°C to 40°C)
LVDT, capacitive, tuning-fork, vibrating wire 10 mN to 1 MN 0.02 to 2 0.02 to 0.05
(-40°C to +80°C)
Magneto-elastic 2 kN to 50 MN 0.5 to 2 0.03 to 0.05
(-40°C to +80°C)
Gyroscopic** 50 N to 250 N 0.001 0.0001
(-10°C to +40°C)
Force balance** 0.25 N to 20 N 1 part in 106 0.0001
(-10°C to +40°C)

** Many sorts of displacement transducer may be used with the gyroscopic load cell and the force balance and their performance limits will depend on the specific type used.

For more information see different types of force transducer.

Last Updated: 25 Mar 2010
Created: 8 Oct 2007