MULTI module
- MULTI module
- Sensor application
- skin conductance
- pulse amplitude and frequency
- temperature
- motility (3D movement sensor integrated into the radio module)
Sensors
Sensor for skin conductance (EDA 1)
- EDA (electrodermal activity)
- palm of hand or finger
- fastened with Velcro strap or disposable electrodes
The electrical conductance of the skin changes with the activity (filling level) of the sweat glands. Recorded using disposable or reusable electrodes.
Pulse sensor (PULS)
- PULS (blood flow)
- finger or head
- fastened with Velcro strap or headband
Red blood corpuscles absorb infra-red light. If tissue to which there is a good blood supply is exposed to infra-red light and the amount of reflected or transmitted light measured, minute fluctuations in intensity are observed as a result of the flow of red blood corpuscles. These fluctuations are filtered out and processed.
Recorded with the reflex pulse sensor.
Temperature sensor (TEMP)
- TEMP (Temperature)
- finger or head
- fastened with Velcro strap or headband
Recorded with a digital sensor sensitive to 0.01°C.
Combined sensor for skin conductance, pulse and temperature (MULTI-S)
- Combined sensor for skin conductance, pulse
- finger or head
- fastened with Velcro strap or headband
Technical specifications
channels: 4
Notch Filter: 50/60Hz
BVP (PVA and PULS calculated from BVP)
Sample rate: 500 Hz
Integration time constant: 100ms
artifact detection: extrasystoles
range: 0…100%
gain: automatic adjustment
hart rate: 30…200 beats/minute
Temperature (digital Sensor)
Date rate: 4 values per second
range: 10…40°C
accuracy: 0,5°C
resolution: 0,01°C
SCL (skin conductance level)
Measuring with alternate current: 20 Hz
alternated
Sample rate: 2kHhz
range: 0…50 μS
max. error: 0,65 μS
resolution: 0,012 μS (12 nS)
MOT (3 axis-acceleration)
Sample rate: 200 Hz
range: 0…20 m/s²
accuracy: 0,006 m/s²
resolution: 0,05 m/s²
Used to record the client's movement, artefact recognition.
Recorded with a 3-axis acceleration sensor integrated into the Multi module.
data storage rate (adjustable via software)
SCL: 10…40 data/second
BVP: 10…100 data/second
TEMP: 4 values/second
MOT: 2…10 data/second
Blue Tooth
class 2
operating distance: ~10m
transmission power: 10mW
