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EEG Performance Tester
The SE-972 EEG Performance Tester is a test instrument dedicated to type testing of EEG-related medical devices. It can perform all EEG parameter tests including common-mode rejection ratio (CMRR) testing, with built-in test circuits and test guidance software.
Product Features
· Ultra-low noise microvolt signal output with 0.1 μV resolution
· Maximum output bandwidth up to 10 kHz
· Built-in test methods compliant with all current domestic EEG-related medical device regulations, with test guidance software interface
· Built-in dual-shield housing structure; no extra equipment required for CMRR testing
· Output capability up to ±29 V to meet testing requirements for high-CMRR devices
· Custom file output function, supports playback of collected EEG signals and provides simulated training signals for AI algorithms
Built-in Test Regulations
GB 9706.226-2021 Medical electrical equipment — Part 2-26: Particular requirements for basic safety and essential performance of electroencephalographs
YY/T 1996-2025 Medical devices using brain-computer interface technology — Implantable neurostimulators with closed-loop function — Test methods for sensory and response performance (SE-972S only)
JJG 954-2019 Digital electroencephalographs
YY/T 0903-2013 EEG biofeedback instruments
JJF 1388-2013 Outline for type evaluation of digital electroencephalographs and topographic electroencephalographs
JJF 1390-2013 Outline for type evaluation of electroencephalographs
JJG 1043-2008 Verification regulation for electroencephalographs
2. Test Interface Screen Examples
(All screenshot captions translated as: In dedicated regulatory clause test mode; selected test circuit applied.)
3. Performance Parameters
Item |
Characteristic |
Details |
Main Output Voltage |
Range |
±3 mV; ±3 V; ±29 V; auto-ranging |
Output Bandwidth |
SE-972: DC or 0.01 Hz ~ 1 kHzSE-972S: DC or 0.01 Hz ~ 10 kHz |
|
Bandwidth Step |
0.01 Hz |
|
Frequency Accuracy |
±0.4% |
|
DA Resolution |
16 Bit |
|
Voltage Resolution |
±3 mV: 0.1 μV±3 V: 0.1 mV±29 V: 10 mV |
|
Typical System Noise |
±0.4 μVpp @ DC~150 Hz1% @ 150 Hz~10 kHz |
|
Accuracy (P-P) |
±3 mV: DC 0.4%+10 μV; AC 0.4%+0.6 μV±3 V: 0.1%+0.1 mV±29 V: 0.1%+0.1 V |
|
Output Impedance |
50 Ω typical |
|
Short-circuit Current |
>8 mA |
|
Polarization Voltage |
Range |
+300 mV; -300 mV; +150 mV; -150 mV; manual switch |
Resolution |
Fixed output, non-adjustable |
|
Accuracy |
0.5% |
|
Built-in Waveforms |
Type |
DC; Sine; Square; Pulse; Triangle; Spike; Differential; Composite |
Frequency Range |
SE-972: DC or 0.01 Hz ~ 1 kHzSE-972S: DC or 0.01 Hz ~ 10 kHz |
|
Voltage Setting Range |
0.1 μV ~ 29 V |
|
RC Characteristics |
Input Impedance |
620 kΩ ±1%; 4.7 nF ±5% |
Simulated Impedance |
51 kΩ ±1%; 47 nF ±5% |
|
Noise Impedance |
10 kΩ ±1% |
|
Adjustable Common-mode Capacitance |
10–110 pF ±5% |
|
Channel Control |
Output Control |
9 independent relay channels |
Power Frequency Voltage Measurement (For CMRR Test) |
Voltage Range |
0~20 Vrms |
Frequency Range |
1~100 Hz (typical 50 Hz / 60 Hz) |
|
BNC Output Ratio |
10:110 (BNC = Voltage at Point B × 10/110) |
|
Accuracy |
1% |
|
Other Features |
Touch Screen |
Capacitive |
LCD |
10.1-inch color, 1280×800 |
|
Li-ion Battery |
12.6 V, 3200 mAh |
|
Storage |
8 GB, FAT32 |
|
Charger |
5 V / 3 A |
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