Sample Data

Sample Data

The following provides an example of sample Shimmer Data collected internally on both Shimmer3 motion (IMU) and biophsical (ECG,EMG, GSR, Respiration, Optical Pulse PPG) units. MATLAB was used to plot the raw data collected. 

Wide Range Accelerometer

The Shimmer3 IMU unit was initially placed on a desk and then lifted off the desk and rotated about each of its three axes. In between each axis rotation, the Shimmer was placed flat on a desk to demonstrate a stationary period of the device.

The kinematic data was passed through the 9DoF-to-IMU algorithm, which can be found in our Consensys software application. This algorithm generated 9DoF Quaternion data from the calibrated Low-Noise Accelerometer, Gyroscope and Magnetometer data.

Source STMicro LSM303DLHC
Range +/- 2g (available ranges:+/- 2g, +/-4g, +/-8g, +/-16g)
Channels 3 Channels (x, y, z)
Column Order LED1, LED2
Sampling Rate 512Hz
Format 16 bits, signed
Units ms-2
Filtering None

Download Sample Shimmer3 IMU data here.

Gyroscope

The Shimmer3 IMU unit was intially placed on a desk and then lifted off the desk and rotated about each of its three axes. In between each axis rotation, the Shimmer was placed flat on a desk to demonstrate a stationary period of the device.

The kinematic data was passed through the 9DoF-to-IMU algorithm, which can be found in our Consensys software application. This algorithm generated 9DoF Quaternion data from the calibrated Low-Noise Accelerometer, Gyroscope and Magnetometer data.

Source Invensense MPU9150
Range +/- 500 deg/s (available ranges: +/- 250 deg/s, +/- 500 deg/s, +/- 1000 deg/s, +/- 2000 deg/s)
Channels 3 Channels (x, y, z)
Column Order LED1, LED2
Sampling Rate 512Hz
Format 16 bits, signed
Units Deg/s
Filtering None

Download Sample Shimmer3 IMU data here.

Magnetometer

The Shimmer3 IMU unit was initially placed on a desk and then lifted off the desk and rotated about each of its three axes. In between each axis rotation, the Shimmer was placed flat on a desk to demonstrate a stationary period of the device.

The kinematic data was passed through the 9DoF-to-IMU algorithm, which can be found in our Consensys software application. This algorithm generated 9DoF Quaternion data from the calibrated Low-Noise Accelerometer, Gyroscope and Magnetometer data.

Source STMicro LSM303DLHC
Range +/- 1.9Ga (available ranges: +/- 1.3 Ga, +/- 1.9, +/- 2.5Ga, +/- 4.0Ga, +/- 4.7Ga, +/- 5.6Ga, +/- 5.6Ga, +/- 8.1Ga)
Channels 3 Channels (x, y, z)
Column Order LED1, LED2
Sampling Rate

512Hz

Format 16 bits, signed
Units Local flux
Filtering

None






 

 

 

 

 

Download Sample Shimmer3 IMU data here.

ECG

The Shimmer3 ECG unit was placed on a desk and connected to the HE Instruments TechPatientCardio signal generator which simulated 4-lead ECG (LA-RA, LL-RA, LL-LA and Vx-RL).Magnetometer

Source ADS1292R
Channels 4 Channels (LA-RA, LL-RA, LL-LA and Vx-RL)
Column Order LED1, LED2
Sampling Rate 1024 Hz
Format 24 bits, signed
Units mV
Filtering None

 

 

 

 

 

 

Download Sample Shimmer3 ECG data here.

EMG

Using the Shimmer3 EMG unit a subject connected two EMG electrodes to the forearm and also to the biceps of their right arm while performing a number of sustained muscle contractions over a two minute recording period. A reference electrode was connected to a boney obtrusion on the wrist.

Source ADS1292R (EMG mode)
Channels 2 Channels (EMG1, EMG2)
Column Order LED1, LED2
Sampling Rate 512 zH
Format 16 bits, signed
Units  mV
Filtering None

 

 

 

 

 

 

Download Sample Shimmer3 EMG data here.

Respiration

Respiration is determined by impedance pneumography which measures the impedance changes across the lungs during the inhalation/exhalation cycle. Note: Using the Shimmer3 ECG in respiration mode introduces some interference on all of the ECG channels.

The Shimmer device was placed on a desk and connected to a subject using the following electrode placement:

  • White: Right Arm (RA) on the midaxillary line of Vertebrate 6 (V6)
  • Black: Left Arm (LA) on the midaxillary line of Vertebrate 6 (V6)
  • Green: Right Leg Driver (RLD) on the right hip bone.
  • Red: Left Leg (LL) above the left hip bone.
  • Brown: Vx (where x is 1, 2, 3, 4, 5, or 6) left of the xiphoid process.

While at rest the subject breathed normally for a two minute period and at the end of each minute performed three pronounced inhalations and exhalations.

Source ADS1292R (Respiration demodulation)
Channels 1 Channels (PPG)
Column Order LED1, LED2
Sampling Rate 512 Hz
Format 24 bits, signed
Units mV
Filtering None

 

 

 

 

 

 

Download Sample Shimmer3 Respiration data here.

GSR

Using the Shimmer3 GSR+ unit a subject connected the GSR electrodes to the index and middle finger on the left hand and the PPG probe onto the left ear lobe.

During the first minute of data recording, the subject was sitting down and during the second minute, the subject was walking.

The PPG data was passed through the PPG-to-HR algorithm, which can be found in our Consensys software application. This algorithm converts the PPG signal to a heart rate (bpm). The heart rate has a value of -1 for the first few samples as the algorithm enters a training period.

Source Shimmer circuit design
Channels 1 Channel (GSR)
Column Order LED1, LED2
Sampling Rate 128 Hz
Format 16 bits, signed
Units kOhms
Filtering None

 

 

 

 

 

 

Download Sample Shimmer3 GSR data here.

Optical Pulse PPG

Using the Shimmer3 GSR+ unit a subject connected the GSR electrodes to the index and middle finger on the left hand and the PPG probe onto the left ear lobe.

During the first minute of data recording, the subject was sitting down and during the second minute, the subject was walking.

The PPG data was passed through the PPG-to-HR algorithm, which can be found in our Consensys software application. This algorithm converts the PPG signal to a heart rate (bpm). The heart rate has a value of -1 for the first few samples as the algorithm enters a training period.

Source Shimmer circuit design
Channels 1 Channel (PPG)
Coumn Order LED1, LED2
Sampling Rate 128 Hz
Formate 16 bits, signed
Units mV
Filtering None

 

 

 

 

 

 

Download Sample Shimmer3 PPG data here.