Wiznet makers

Model selection
NET0824C (onboard AD clock 27MHZ)
NET0824D (on-board AD clock 16.384MHZ)

Product applications
NET0824 is a true synchronous data acquisition card based on 100M Ethernet interface, which can be directly connected to the computer's Ethernet interface RJ45. It constitutes a waveform analysis and processing system in various fields that require synchronous data acquisition. Its main applications are:
* Vibration / modal analysis;
* Microseismic data analysis and focal location;
* Seismic measurement
; * Acoustics / Dynamic Strain Gauge;
* Multi-channel synchronous data acquisition;

ADC analog input function

1. Input range: ± 10V, user can customize ± 5 V or ± 2.5V;
2. Conversion accuracy: 24 bits (BIT);
3. Sampling rate: 105.469KHZ, 52.734KHZ, 26.367KHZ, 13.184KHZ, 6.592KHZ3.296KHZ, 1.648KHZ, 823.975HZ. 411.987HZ, 205.994HZ, the above sampling rate software is selectable, the sampling rate of each channel is the same (the onboard AD clock defaults) 27 MHZ can be customized to 16.384MHZ);
4. Number of physical channels: 8 channels;
5. Number of sampling channels: the software selects the number of sampling channels, and the selected sampling channels are continuous channels starting from the first channel;
6. Analog input method: differential input;
7. Gain setting: the front-end gain of each channel can be controlled by software to 1, 10, 100, 1000 times (can be customized 1, 2.48 times)
8. Data reading mode: The collected data is automatically uploaded or non-empty, half-full, quarter-full, custom full query method, and the non-continuous collection method uses the collection completion mark query;
9. Memory depth: deep FIFO technology, 128MB FIFO memory, can store 32M sampling points;
10. Sampling clock source selection: onboard clock, onboard clock, offboard GPS clock (software selectable);
11. Trigger mode: analog trigger, digital trigger;
12. Acquisition methods: continuous trigger internal acquisition, external trigger continuous acquisition, pre-trigger cycle acquisition, intermediate trigger cycle acquisition, post-trigger cycle acquisition, pre-trigger single acquisition, middle trigger single acquisition, post-trigger single acquisition
13. Trigger type: rising edge trigger;
14. Analog trigger level: software setting, the maximum range is -10V ~ + 10V;
15. Front-end filtering: Analog anti-aliasing hardware anti-aliasing filtering for each channel of the front end; GPS multi-card synchronous acquisition: Use the GPS module to output a 10MHZ clock as the AD conversion clock source, and the acquisition start time is synchronized with the rising edge of the second pulse
16. IEPE / ICP sensor setting: each channel can be software selected whether to connect IEPE / ICP sensor;
17. IEPE / ICP sensor power supply: When the IEPE / CP sensor is selected, the power supply is E24V, and the constant current is 4.26MA;
18. Hardware watchdog: The hardware watchdog monitors the running status of the main controller program in real time, the program is loaded abnormally or the communication times out, and the watchdog resets the entire system;
19. Analog input impedance: 10M ohm;
20. Non-linear error (INL): ± 0.0012% FSR (FSR = 20V);
21. System measurement accuracy: 0.0015%;
22. Operating temperature range: -20 ℃ ~ 85 ℃ C
23. Storage temperature range: -40 ℃ ~ 85 ℃;