Parameter indicators:
1. Transmission mode: USB2.0 high-speed;
Sampling speed: 0-1000khz /S, sampling frequency can be adjusted at will.
2. Module (A/D) conversion accuracy: 16bit;
Amplification factor (input range) : 5~ 40,000 times program control switch.
3. Signal input channel: 5 channels. The performance parameters of the four channels are the same, a dedicated ecg channel.
Each channel is independent of each other, and the machine box is made up of multiple circuit boards, which is convenient for after-sales maintenance.
4, stimulation output channel: two channels, photoelectric isolation stimulator, seven kinds of stimulation mode: single stimulus, string, main cycle stimulate, automatic frequency stimulation, automatic wave stimulation, wide range, automatic interval stimulate.
Full program control adjusts three sets of output: 0~5v, 0~10v, 0~100v (each shift can be adjusted at will).
It also has the function of stimulus interruption. If you want to interrupt stimulus in advance, you can control the interruption of stimulus by software.
5. Marking function: it can mark any position of the experimental waveform at any time before, during and after the experiment.
In addition, any number of channels can be marked together during the experiment to facilitate the recording and observation of pharmacological experiments.
6. Working voltage: the device introduces a 12V dc power supply.
7. Zero setting mode: hardware and software zero setting mode.
8. Filter type: 7th order butterworth.
9. Input noise: <2uv;
Temperature drift: <1uv/4h;
Common-mode rejection ratio: >120dB;
SNR: >100dB.
10. Sampling mode: manual and automatic: automatic sampling can be carried out according to the set time to achieve real man-machine interaction.
11. Software interface: it adopts the internationally popular style and chinese-english interface to facilitate the research and exchange of international students.
12. Data statistics: various experiments have professional calculation templates.
For example, electrocardiogram experiment: p-wave amplitude, p-wave time, r-wave amplitude, p-r time, QRS time, t-wave amplitude, t-wave time, q-t time, heart rate, etc.
13. Experimental module: open experimental module, users can add, edit and delete experimental template at will.
14. Storage mode: conventional storage, selective storage, record storage, power off storage (i.e. the file will not be lost in case of sudden power failure or other accidents).
15, in the process of the experiment such as hardware suddenly loses power accident, do not need to restart the software and save operation, just once again open hardware and can continue sampling, not cause data loss, ensure the consistency and integrity of the whole experiment.
16. Single window display: the four-channel waveform can be superimposed on the same baseline to facilitate longitudinal comparison of each experiment.
17. Extended functions: besides routine experiments, scientific research experiments can be carried out, such as brain LTP experiment, microcirculation observation, gastrointestinal electricity, cardiac cell action potential, respiratory sleep, etc.
18. The third channel can be freely switched into a multi-lead electrocardiogram machine, with the function of electrocardiogram grid, which is convenient for users to observe and analyze.
19. The device is automatically cascaded into more than eight acquisition channels.
A maximum of 32 channels can be displayed for scientific experiments.
20. Equipped with a camera module, video visual education system can be added to the system, and the image size, distance, clarity and other parameters of the camera can be adjusted through the software of the biological signal acquisition system.
21. The software menu can be set freely, and the three experimental files that have been opened recently can be opened directly, and the multi-channel calculation data can be mixed and displayed.
The biological signal acquisition system is a multi-MCU controlled biological signal recording and data processing system specially designed for life sciences. It replaces traditional multi-channel physiological recorders, oscilloscopes, X-Y recorders and stimulators. Biological experiments in the disciplines of physiology, pharmacology, pathophysiology, exercise physiology and psychology in colleges and universities.
