The Mobi system

Compact, Complete freedom of movement, no compromise recording

The Mobi system is a multichannel system to measure a variety of (electro)-physiological signals in the field of human movement sciences, rehabilitation, ergonomics, sports and telemedicine.

The flexible and modular concept  of the Mobi offers a wide range of configurations and user definable measurements. For example EMG, EEG, ECG, position, force, movements, temperature, respiration and a lot of other parameters can be measured. It can further be configured with a digital input for SpO2. 

The design of the Mobi integrates the true DC reference amplifier. The active shielding guarantees optimal signal quality, no mains or other interference and no movement artefacts.

The Mobi is designed for ambulatory measurements, but can be used stationary as well.  In stationary use, the data is directly sent to a PC by BlueTooth wireless telemetry. Thus the user has optimal freedom during the measurement. And of course it is possible to store the data locally on a flash disk up to 1 Gbyte.

In telemedicine applications it is even possible to send the data by BlueTooth to a mobile phone, and via the internet directly to the research centre or the hospital.

The Mobi is carried in a pouch on the subject's belt and powered by only 2 AA batteries.

* no movement artifacts

* from DC to maximum sample frequency

* up to 8 channels

* digital input for SpO2

* 24 hours recording

* up to 1 Gbyte internal storage 

* Bluetooth® telemetry

Specifications

CE0044                                                          This device meets all the requirements of the MDD (93/42/EEC)

                                       MDD Classification IIa (rule 10)                                     

Applied standards                      * IEC 60601-1:1988 + A1:1991 + A2:1995 : Medical electrical equipment - Part 1: General

                                                    requirements for safety

                                                   *  IEC 60601-1-2:2001 : Medical electrical equipment - Part 1-2: Electromagnetic compatibility

Safety class (IEC 60601-1)        internally powered, type CF 

Dimensions                                 11.4 x 9.8 x 3.7 cm (l x b x d)

Weight                                        165 gram

Internal power supply

Batteries                                             2 x AA type rechargeable NiCd or NiMH 1.2V or disposable alkaline 1.5V

Battery low indication level                2.0 V ± 0.1V

Battery empty shut down level          1.7 V ± 0.1V

Unipolar inputs (ECG/EEG.)

Noise                                                    < 1.5 µV rms (@ Fs = 128 Hz)

Gain                                                     13.2 x

Accuracy                                         ± 0.1%

Input signal range differential           -0.15V / +0.15V

Input signal range common               -2V / +2V

Input impedance                                   > 10¹² W

CMRR                                                    100 dB

Connector                                         micro coax

AUX inputs

Noise                                                   < 15 µV rms (@ Fs = 128 Hz)

Gain                                                    1 x

Accuracy                                            ± 2%

Input signal range differential             -4V / +4V

Input common mode range                 -4V / +4V

Input impedance                                 > 10¹⁰ Ohm

CMRR                                                      80 dB

Connector                                           Binder 5 pin

Output voltage                        +5V, -5V, max. 5mA per channel

Sampling:

Resolution                                           24 bits

Sample frequency (Fs)                        128Hz, 256Hz, 512Hz ,1024Hz, 2048Hz

Bluetooth communication:

Bluetooth 1.1 class 2                  

Used profile                                            Serial port profile

Line of sight range                                  > 10 meter