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APDM - Model The Opal - Wearable Biomarker Sensors
THE OPAL a research-grade wearable sensor built for ultimate control.
- High sampling rate
- Stream to MATLAB, Java, Python, C
- Access raw kinematic data
- Sync with other systems
- 8hr-4day battery life
- Up to 24 Opals on one network
- Stream or log data
- Gyroscope + accelerometer
The Opal is the foundational technology in all of our solutions.
While you can customize a system of any size, we have some standard solutions to choose from:
Motion Studio: This is our free data acquisition software, perfect for those who want to develop their own protocols and algorithms. Keep scrolling to learn more about this solution.
Mobility Lab: This is for those who want to measure spatial/temporal gait and balance. By far our most popular system, find out more in the Gait & Balance tab above.
Moveo Explorer: Our newest product, it is for those who want to measure full body kinematics in unconstrained environments. Interested in automated joint angle analysis? Learn more in the Kinematics tab above.
WIRELESS SYNCHRONIZATION
Up to 24 Opals in one wireless network with precise time synchronization.
RECORD NATURAL MOVEMENT
Small, silent, and wireless means the subject will wear it and forget it – recording natural movement all day long.
REAL-TIME RESULTS
Continuously stream data for real-time processing with a latency less than 30ms, perfectly tuned for biofeedback applications.
NEVER LOSE DATA
Over 30 days of kinematic data can be stored on each Opal.
LONG BATTERY LIFE
16 hours of battery life while logging data and more than 8 hours while streaming data, Opals beat the competition by 4x.
USE ANYWHERE
Break out of the lab and record movement on the field of play, at home, or anywhere.
| ACCELEROMETERS (2) | GYROSCOPE | MAGNETOMETER | |
| Axes | 3 axes | 3 axes | 3 axes |
| Range | ± 16g, ± 200g | ± 2000 deg/s | ± 8 Gauss |
| Noise | 120 μg/√Hz, 5 mg/√Hz | 0.025 deg/s/√Hz | 2 mGauss/√Hz |
| Sample Rate¹ | 20 to 128 Hz | 20 to 128 Hz | 20 to 128 Hz |
| Bandwidth | 50 Hz | 50 Hz | 32.5 Hz |
| Resolution | 14 bits, 17.5 bits | 16 bits | 12 bits |
Dimensions: 43.7 x 39.7 x 13.7 mm (LxWxH)
Weight: < 25 grams (with battery)
Material: Polycarbonate, Glass
Internal Storage: 8 Gb (~450h Storage)
Battery Life: Synchronous Logging: 12h, Asynchronous Logging: 16h
Wireless Radio: Nordic Semiconductor nRFL01 + radio, ultra low power
Frequency Band: 2.40-2.48GHz ISM band, adjustable
Data Rate: 2Mbps on-air data rate
Latency*: 300ms (typical) with data buffer
Transmission Range: 30m line of sight, 10m indoors
Data Buffer: 8Gb (~720 hours)
Synchronization: ≤1ms difference, up to 24 Opals
Bluetooth^2: No
Wifi^2: No
* Latency is defined as the time when sample is recorded on the Opal, to the time it is emitted from the host libraries. Our latency includes the hardware, firmware, USB and host library stack.
Both WiFi and Bluetooth use too much energy to be used in small wireless system like the Opal. Our battery life would significantly decrease if we chose to support these wireless protocols, even Bluetooth low energy. Other low power radios, like Zigbee, do not have the bandwidth required to transmit 10 data channels.
Static Accuracy (Roll/Pitch): 1.15 deg
Static Accuracy (Heading): 1.50 deg
Dynamic Accuracy: 2.80 deg