Basics of force measurement technology

 

Output resistance [Ω]

Ohmic resistance of the force transducer, measured between the output voltage terminals

Bending moment influence [AE/N*m]

Deviation of the force transducer output signal due to a bending moment

Breaking force [N]

Force of the force transducer, above which mechanical destruction is to be expected

Torque influence [AE/N*m]

Relative deviation of the output signal of the force transducer due to a torque around the measuring axis. The torque must be specified.

Compressive force [N]

Force in the direction of pressure on a pressure or universal force transducer

Input resistance

Ohmic resistance of the force transducer, measured between the supply voltage connections

Electromagnetic Compatibility (EMC) [-]

Information on interference immunity and electromagnetic emissions and irradiation.

Eccentricity influence [AE/mm]

Output signal of the force transducer at nominal force as a result of a defined displacement of the force action line parallel to the measuring axis. The largest eccentricity influence in the plane perpendicular to the measuring axis must be specified.

Force [N]

Vector physical quantity with point of action, direction of action and amount
(1 N = 1 kg*m*s-2)

Force application influence [dL]

Maximum deviation of the output signal of the force transducer when using different types of force application, in relation to the output signal reduced by the zero signal in the installed state with correct force application

Force measuring range [N]

Measuring range in which a force transducer is used. A force transducer can have several measuring ranges. The associated error limits must be observed within these ranges. Each measuring range is limited by an initial value FA and an end value FE.

Mass [kg]

Mass of the force transducer without force introduction parts

Range spring stiffness [N/mm]

Ratio of force to axial deformation of the measuring fields, measured between the positions of force application and release with defined adaptations.

Nominal force [N]

Maximum force for which the force transducer is nominally designed, i.e. up to which the manufacturer's metrological specifications are met.

Nominal measuring travel [mm]

Spring deflection of the outer force application points or surfaces of the force transducer in the measuring direction relative to each other as a result of a load with nominal force. The installation and measurement conditions must be specified.

Tractive force [N]

Force in the tensile direction on a tension or universal force transducer

Permissible eccentricity of the force application [mm]

Permissible parallel displacement of the line of force action to the measuring axis of the force transducer at nominal force, without the force transducer experiencing permanent significant changes in its metrological properties up to nominal force.

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