Myoelectric Bracelet 3
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EMG bracelet streamlined design requirements
1. Project Positioning
This product is a wearable device for lower forearm dry electrode electromyography. It collects sEMG signals to realize AR interaction, virtual control and scientific research data collection. Different from traditional smart watches, the core is lightweight and modular in structural design around stable electromyography collection. Refer to me-ta Neural Band and follow the principle of sensing priority.
2. Core Hardware Boundaries
The internal hardware of the electronic compartment occupies a space of 30 × 30 × 8mm, and the structure is reserved for wall thickness, sealing, charging and antenna clearance. Metal shielding is prohibited in the 2.4G ceramic antenna area; Magnetic attraction/contact charging is adopted to prevent contact corrosion. PCB and battery are used as buffer limit, and hidden debugging interface is reserved.
3. ergonomic wearing requirements
Wearing on the lower forearm 20-35mm from the proximal end of the wrist striation; Adjustable circumference 145-205mm, table bandwidth 22mm, sensing lining width 20mm. When wearing, there is no obvious slip in the movements such as clenching fist and rotating wrist, and the electrode pressure is even and not tight. The structure takes into account the left and right hands, reducing the cost of the style.
4. four modular structure
Dorsal electronic compartment (including active devices): integrated PCB, battery, IMU, tactile feedback, LED, low rounded corners, no large screen, placed on the outside of the forearm to avoid pressing the sensing area;
Replaceable passive sensing lining: carrying electrodes and passive conductors can be replaced separately to adapt to different wearing requirements;
Electrode soft island: single capsule/oval electrode contact surface 8mm, convex 0.6-0.9mm,
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