Working With The Fsr Membranes; Handling Fsr Membranes; Connecting The Fsr Membranes To The Sensor - Delsys TRIGNO User Manual

Working with the FSR Membranes

Handling FSR Membranes

The FSR membranes are delicate transducers constructed in multiple
layers that have an ability to change resistance as pressure is applied.
Delsys supplies these membranes with a 30 cm cable extension, ter-
minated with a shrouded barrel connector for mating with the wire-
less sensor. Care must be exercised when using these membranes as
excessive forces will damage them. These are particularly vulnerable
to shear forces, such as those encountered during walking or running,
which may cause the membrane to delaminate. It is recommended
to place the membrane in a protected location where its exposure to
these forces is limited. Alternatively, the FSR membrane can be pro-
tected by layering it between two pieces of clear vinyl packaging tape.
In this case, care must be taken to ensure that the air channel at the
membrane edge is not occluded and remains clear.
FSR membrane
air channel
Figure 8. The FSR membrane. Ensure that the air channel at the
joint of the membrane and the cable remains clear so that air
can flow during membrane compressions.

Connecting the FSR Membranes to the Sensor

The Trigno FSR Sensor has a connector head hosting 4 receptacles for
the membrane transducers. Connect the FSR membranes by to the 4
barrel receptacles taking care to fully mate the plug. The connectors
are labeled numbers 1-4 on the sensor, and portrayed in this order in
the EMGworks software. All FSR membranes are interchangeable.
Trigno EMG System 13
TM