Interlink Electronics FSR 400 Series - Manual (Page 35)

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33
FSR
®
Integration Guide
10.0 Glossary
Terminology
Active Area:
The area of an FSR device that responds to normal force with a decrease
in resistance. This is typically the central area of the sensor more than 0.5mm from the
inside edge of the spacer.
Actuator:
An object that contacts the sensor surface and applies force to FSRs.
Applied Force:
The force applied by the actuator on the sensor active area.
Array:
Any grouping or matrix of FSR sensors that can be individually actuated and
measured, usually all built together as a unit.
Break Force:
The minimum force required, with a specific actuator size, to cause the
onset of the FSR response. Typically defined as the force required to reach below
100kΩ.
Cross-talk:
Measurement noise or inaccuracies of a sensor as a result of the actuation
of another sensor on the same substrate. See also false triggering.
Drift:
The change in resistance with time under a constant (static) load. Also called
resistance drift.
Durometer:
The measure of the hardness of rubber.
EMI:
Electromagnetic interference.
ESD:
Electrostatic discharge.
False triggering:
The unwanted actuation of a FSR device from unexpected stimuli; e.g.,
bending or cross talk.
Force Resolution:
The smallest measurable difference in force.
FSR:
Force Sensing Resistor. A polymer thick film device with exhibits a decrease in
resistance with an increase in force-applied normal to the device surface.
Graphic Overlay:
A printed substrate that covers the FSR. Usually used for aesthetics
and protection.
Housed Female:
A stitched on AMP connector with a receptacle (female) ending. A
black plastic housing protects the contacts. Suitable for removable ribbon cable
connector and header pin attachment.
Hysteresis:
In a dynamic measurement, the differences between instantaneous force
measurements at a given force for an increasing load versus a decreasing load.
Repeatability: The ability to repeat, within a tolerance, a previous response
characteristic.