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What's the W-EMG

W-EMG is a portable amplifier for High Density surface EMG recordings that can be carried in a small backpack or in a belt pouch.

 

Light and thin connections to electrodes minimize the movement artifacts and setup complexity. The optic-fibre connection makes the system intrinsically safe and allows thesubject to move up to 50m away from the PC.

 

Main Features 

 

• Battery powered*

• Wearable

• Small and light

• Thin and lightweight connections

• Up to 416 Channels (32ch modules)

• Long distance optic-fibre connection to PC (up to 50m)

 

*The battery supports acquisition of 64ch for up to five hours without recharging.

Technical Specifications

 

External dimensions                               53x105x160 mm

Weight                                                      450 g (64ch version)

Power Supply                                          Li-Ion Battery 7.5V

Maximal optical fiber length                  50 m

Gain (dB)                                                  45.7 - 0.05%

Bandwidth                                               6 - 1200 Hz

RTI Noise                                                 (20-500Hz) < 1.3 μVRMS

CMRR                                                       (10-500Hz) 100 dB

Number of Channels                              64 – 256*

Digital Resolution                                   24 bit

Sampling Frequency                              2.44 ksps/ch

 

The supplied software allows the acquisition, online display of EMG maps, spectral analysis and signal quality control.

 

* Number of channels for the wearable version of the system. More modules can be integrated to provide a higher number of channels (up to 416).

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