ECG/EEG common mode rejection ratio tester
ECG/EEG common mode rejection ratio tester
- Model：
ECG/EEG common mode rejection ratio tester
CMRR -B/P/E Model
1. Main features of common mode rejection ratio tester:
1) Standard basis ：Common Mode Rejection Ratio Tester Reference GB 9706 .225-2021 , GB 9706 .226-2021 , GB 9706 .227 -
2021 、 YY 9706 .247 , IEC 60601-2-51 、 YY 1139 and other ECG standards on common mode suppression circuit diagrams ;
2) Intended use ：Mainly used for electrocardiograph , ECG monitor , Holter machine , EEG and other products about common mode rejection and system noise Research and development of acoustic parameters , production testing and testing by medical testing and calibration metrology institutes;
3) The product has good shielding effect and easy operation;
4) Comes with skin simulation impedance and common mode rejection ratio conversion table;
5) CMRR -P has higher common mode rejection ratio detection capability , for the development of high-end products for enterprises , production testing and medical testing institutions;
6) CMRR -E is the EEG common mode rejection ratio test.
2. Technical specifications of ECG common mode rejection ratio tester:
Parameter name | Common Mode Rejection Ratio Specifications | CMRR -B | CMRR -P | CMRR -E |
CMRR detection range | 120dB; | mouth | □ | mouth |
140dB; | □ | mouth | □ | |
Output test voltage | AC 0.25～20Vr.ms; | mouth | □ | mouth |
AC 0.25～200Vr.ms; | □ | mouth | □ | |
Detection signal frequency | 50/60/100/120Hz adjustable | mouth | mouth | mouth |
Polarization voltage | 0mV ~ 1000mV (negative pressure switchable) | mouth | mouth | mouth |
Skin impedance | 51K and 47nF capacitor parallel impedance network | mouth | mouth | □ |
10K and 47nF capacitor parallel impedance network | □ | □ | mouth | |
Detectable leads | 12 guide | mouth | □ | □ |
18 guide | □ | mouth | □ | |
Number of channels | 32 aisle | □ | □ | mouth |