Trigno 4-Channel FSR Adapter

Designed to provide relative pressure information of body-contact surfaces

Each sensor transmits 4 independent analog signals, each servicing an individual FSR (Force Sensitive Resistor) membrane. These thin membranes are often affixed to shoe inserts for recording foot pressure timing at the heel, the toe, the first and the fifth metatarsals. Alternatively, these same sensors can be used to assess grip force during grasping tasks, or pressure distribution on the back while seated or lying down.

Specifications
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Trigno 4-Channel FSR Adapter

Identify the timing of significant events

Make relative amplitude comparisons

Available sizes: 0.2” circle diameter, 0.5” circle diameter and 1.5” square

Up to 40 m range

2.4 GHz transmission

Specifications

User’s Guide

Sensor Channels
4x FSR, up to 6x IMU

Size (Body)
27 x 46 x 13 mm

Mass
19 g

Operating Range
40 m in RF mode
Host Dependent/unlimited datalogger

Wireless Protocol
-2.400-2.483 GHz ISM Band, Proprietary RF Protocol
-BLE V4.2

FSR Bandwidths
DC-50 Hz

FSR Sampling Rate (Max)
1111 sa/sec

Accelerometer Sampling Rate (Max)
741 sa/sec

Gyroscope Sampling Rate (Max)
741 sa/sec

Orientation Sampling Rate (Max)
74 sa/sec

Sensor Resolution
16 bits

Battery Life
Up to 8 hours

Recharge Time (typical)
2.5 hours

Inter-Sensor Latency
< 1 sampling period

EMG Analog Output Delay
48 ms Fixed

ACC/Gyro Analog Output Delay
96 ms Fixed

Real-Time IMU Orientation Filter
Quaternions or RPY (selectable)

Material
Medical Grade Polycarbonate

Seal and Protection
UV-sealed to prevent moisture from entering the sensor & to enhance patient safety

Patents
Protected by one or more of the following Patents 6480731, 6238338, 6440067, 9351559, 8971983, EP1070479