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Trigno™ Mini Sensor2019-07-23T12:33:42-04:00

Trigno Mini Sensor

Bridging physiology and technology

The Trigno™ Mini is a wireless EMG sensor that is ideally suited for recording surface EMG on small and “difficult-to-isolate” muscles. With a sensing head that measures only 25 mm x 12 mm x 7 mm, the Trigno™ Mini Sensor can be used for a variety of small muscle applications, including physical therapy, rehabilitation sciences, sports science, ergonomics, and motor control.

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Full Bandwidth EMG signal

Triaxial accelerometer

Reduced noise, motion artifacts & crosstalk from nearby muscles

Trigno MiniHead Sensor


User’s Guide

Sensor Channels

Analog Channels

Reference Type
Dual on-board stabilizing reference

Inter-Electrode Spacing
10 mm

Size (Body)
27 x 46 x 13 mm

Size (Head)
25 x 12 x 7 mm

19 g

Operating Range
40 m in RF mode
Unlimited range w/ mobile device in Bluetooth mode

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

EMG Sampling Rate (Max)
4370 Hz

Accelerometer Sampling Rate (Max)
370 Hz

Gyroscope Sampling Rate (Max)
370 Hz

Orientation Sampling Rate (Max)
222 Hz

Sensor Resolution
16 bits

Sensor Baseline Noise (typical)
750 nV

Sensor Input Range
11 mV / 22 mV rti

<-80 dB

Sensor Bandwidth
20 – 450 Hz / 10 – 850 Hz

Battery Life
4 – 8 hours

Recharge Time (typical)
2.5 hours

Inter-Sensor Latency
< 1 sampling period

Digital Output Delay

EMG Analog Output Delay
48 ms Fixed

ACC/Gyro Analog Output Delay
96 ms Fixed

Real-Time Signal Filter
-Butterworth bandpass (40/80 dB/dec)
-RMS Envelope Calculation (100 ms window)

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

Medical Grade Polycarbonate

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

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