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Academic Logger Data definitionAcademic

  • Four types of data can be acquired: EOG potential signal, acceleration (Acc), angular velocity (Gyro), and quaternion.
  • The data types available vary depending on the mode: Full, Standard, or Quaternion.
  • The transfer frequency can be selected from 50/100Hz.
  • Axis definitions are oriented as shown in the figure below.
Mode typeFrequencyEOGAccGyroQuaternion
Full Mode50/100Hzooo-
Standard Mode50/100hzoo--
Quaternion50/100Hz---o

Full Mode

Full is the mode with the most data types and is the most versatile and easy to use. Please see [Detail](/assets/pdf/sample_full.pdf).

NameTypeDescriptionRange
ARTIFACTintMarkers entered in software0/1
NUMintSequential number0...
DATEstringReceived Date(ex) 2016/08/09 05:22:35.88
ACC_XintAnalog value of acceleration X (maximum value is set range)-32768...32767
ACC_YintAnalog value of acceleration Y (maximum value is set range)-32768...32767
ACC_ZintAnalog value of acceleration Z (maximum value is set range)-32768...32767
GYRO_XintAnalog value of angular velocity X (maximum value is set range)-32768...32767
GYRO_YintAnalog value of angular velocity X (maximum value is set range)-32768...32767
GYRO_ZintAnalog value of angular velocity X (maximum value is set range)-32768...32767
EOG_LintValue of left electrode-32768...32767
EOG_RintValue of right electrode-32768...32767
EOG_HintValue of horizontal potential-65535...65535
EOG_VintValue of vertical potential-32768...32767

Standard Mode

Standard mode is useful when you want to acquire detailed EOG data at twice the speed (two data per line), but it does not retain angular velocity data. Please see [Detail](/assets/pdf/sample_standard.pdf).

NameTypeDescriptionRange
ARTIFACTintMarkers entered in software0/1
NUMintSequential number0...
DATEstringReceived Date(ex) 2016/08/09 05:22:35.88
ACC_XintAnalog value of acceleration X (maximum value is set range)-32768...32767
ACC_YintAnalog value of acceleration Y (maximum value is set range)-32768...32767
ACC_ZintAnalog value of acceleration Z (maximum value is set range)-32768...32767
EOG_L1intValue of left electrode 1-32768...32767
EOG_R1intValue of right electrode 1-32768...32767
EOG_L2intValue1 of left electrode after 1/(freqency * 2) sec-32768...32767
EOG_R2intValue1 of right electrode after 1/(freqency * 2) sec-32768...32767
EOG_H1intValue of horizontal potential 1-65535...65535
EOG_V1intValue of vertical potential 1-32768...32767
EOG_H2intValue1 of horizontal potential after 1/(freqency * 2) sec-65535...65535
EOG_V2intValue1 of vertical potential after 1/(freqency * 2) sec-32768...32767

Quaternion Mode

Quaternion is a special mode for acquiring data used for attitude control, etc. Please see [Detail](/assets/pdf/sample_quaternion.pdf).

NameTypeDescriptionRange
ARTIFACTintMarkers entered in software0/1
NUMintSequential number0...
DATEstringReceived Date(ex) 2016/08/09 05:22:35.88
QUATERNION_WintQUATERNION_W(maximum value is set range))-32768...32767
QUATERNION_XintQUATERNION_X(maximum value is set range))-32768...32767
QUATERNION_YintQUATERNION_Y(maximum value is set range))-32768...32767
QUATERNION_ZintQUATERNION_Z(maximum value is set range))-32768...32767

Signal processing

JINS MEME Academic Pack outputs the acquired values of the sensor directly via Bluetooth.

A sample of the EOG signal

The following is a sample of the EOG signal(blue:Vv, red:Vh) at 100 Hz during blinking and eye movement. Due to the effect of contact resistance, the eye movement shows a gently converging waveform as if a band pass filter is applied.

CSV file (excerpts)

JINS MEME™ Platform