Description
SYMAP SYMAP-ECG
Technical Specifications Multi-lead ECG signal input; High gain low-noise signal amplifier; Built-in 50/60Hz power line noise filter; Analog to digital conversion; Operating supply voltage DC; Operating temperature 10°C to +40°C; Electrode lead interface; Digital communication port.
Functional Features High impedance input circuit reduces loading effect on bio-electrode; Power frequency interference suppression; Baseline drift correction circuit; Real-time ECG waveform data output; Lead-off detection identifies disconnected electrode; Small form factor for embedded integration.
Application Scenarios Portable patient cardiac monitoring equipment; Medical wearable ECG recorder; Biometric research test platform; Clinical bedside auxiliary monitoring device; Sports physiology signal measurement system; Medical simulation training instrument.
Performance Parameters Signal input noise maintains low level; Amplifier gain accuracy stable; Lead-off detection response fast; Digital sampling rate consistent; Common mode rejection ratio meets medical signal acquisition requirement.
Material Composition Flame-retardant plastic module housing; Multi-layer FR4 printed circuit board; Low-noise operational amplifier chips; ADC conversion IC; Electrode connector terminals; Filter passive components; Shielded metal cover for analog circuit area.
Structural Features Compact rectangular PCB module; Front side electrode input connector; Digital communication interface on edge; Internal metal shielding can for analog signal circuit; Mounting holes for fixed installation.
Working Principle Bio-potential ECG signals collected by skin electrodes enter high-impedance amplifier circuit. Weak cardiac signal gets amplified. Built-in filter removes power frequency electromagnetic interference. Baseline correction circuit stabilizes signal offset. The conditioned analog signal converts to digital data via ADC chip. Digital ECG waveform data transfers to host device through communication interface. Lead-off circuit continuously monitors electrode contact state.
Installation Requirements Mount module inside shielded equipment enclosure; Use shielded cable for electrode wiring; Separate analog signal wiring from power supply traces; Provide stable low-noise DC power; Ensure good shielding grounding.
Precautions for Use Do not use in high intensity electromagnetic field environment; Verify electrode impedance before signal collection; Keep module away from heat sources; Prevent liquid ingress into circuit area; Calibrate signal gain regularly.
