ALPHA PRO
24 channels
Features
Redefine Board Innovation
با مهندسی آلفا، کیفیت سیگنال متفاوتی را تجربه کنید.
سیگنال پایدار و تمیز
طراحی بهینه روتینگ سیگنال
پردازش دقیق و سریع سیگنال
Texas Instrument IC/Processor
ایزوله کردن قطعات حساس
طراحی ماژولار بورد
پرفورمنس بالای مدار
استفاده از قطعات اورجینال
مینمم تداخل سیگنال ها
طراحی Separate ground
کمترین مقدار ممکن نویز دریافتی
تفکیک کامل بخش دیجیتال و آنالوگ
| Feature | Value |
|---|---|
Noise Level | 0.3 µV rms |
SNR | 121 dB |
Sample Rate | 250 - 2K |
EEG Channels | 21 Channels |
Gain | 24 PGA |
Extra Channels | 3 CH |
Interface | USB |
Power Input Voltage | 0 – 5 V |
Bandwidth | 0.05 – 80 Hz |
CMRR | > 100 dB |
Resolution | 24 Bit |
Input Impedance | >1 GOhm |
High Performance
High CMRR (>100 dB) & High resolution (24 Bit)
Signal Quality
High SNR (121 dB) & Ultra low noise level (0.3 µV)
Measurable Range
Broad Bandwidth (0.05 – 80 Hz)
EEG System Insights
Understanding the core metrics that define EEG system performance
The sampling rate indicates how frequently the signal is measured within a given time frame, usually expressed in Hertz (Hz). One Hz is one measurement per second.
The bandwidth represents the effective frequency range that an EEG system can measure.
The Common-Mode Rejection Ratio (CMRR) measures a differential amplifier's ability to suppress or reduce the common-mode voltage (VCM), which is a voltage that remains constant on both the positive and negative inputs of the amplifier.
The input impedance refers to the impedance of the first stage of the amplifier. In this context, we distinguish between electrode impedance, which is the impedance between the electrode and the skin; and input impedance, which is the constant impedance defined by the input circuit of the amplifier.