Portable Dynamic Signal Test and Analysis System - DE-884U
The DE-884U Dynamic Signal Test and Analysis System is specifically engineered for strength and vibration characteristic testing of large-scale structures. Featuring an independent distributed modular design, the system utilizes Ethernet switches (supporting IEEE 1588 network synchronization and PoE power supply) for expansion, enabling unlimited multi-channel parallel synchronous testing and analysis of dynamic stress/strain and vibration signals with just a single computer.
Modular design, flexible channel configuration, synchronous and parallel sampling of all channels
Individual 24-bit A/D converters per channel with selectable sample rate of up to 128kHz for high resolution data
Built-in 24V/4mA biasing circuit, used to acquire output signal of IEPE acceleration sensors and microphones
High Performance DMA Data Transfer
IEEE1588 protocol, clock synchronization error is of no more than 200nS
Built-in bridge completion and Excitation
Built-in LPF and anti-aliasing filter
Suport EID, TEDS and POE
| Name | Detail |
|---|---|
| Number of input channels | 8 channels |
| Input Coupling | GND, Dif-DC, Sin-DC, AC, IEPE |
| Input Impedance | 10MΩ + 10MΩ |
| Input Voltage Range | ±0.1V, ±0.2V, ±0.5V, ±1.0V, ±2.0V, ±5.0V |
| Indication Error | ≤0.2% of F.S. |
| Nonlinearity | ≤0.1% of F.S. |
| Channel Isolation | >=80dB |
| Strain Measurement | |
| Input Strain Range | ±1000με, ±2000με, ±5000με, ±10000με, ±20000με, ±50000με |
| Indication error | ≤0.5%±3με |
| Bridge Excitation | |
| Bridge Configuration | Full, half, three-wire quarter bridge |
| Bridge Completion Resistors | 120Ω / 350Ω (Three-wire quarter bridge) |
| Resistors | 50Ω ~ 10000Ω (Half bridge / Full bridge) |
| Bridge Voltage | 2V, 5V, 10V DC |
| LPF | |
| Cut-off Frequency (-3dB±1dB) | 30Hz, 300Hz, 3kHz, PASS |
| Flatness | <0.1dB Within 1/2 of cutoff frequency |
| Stop-band Attenuation | >-18dB/Oct. |
| Communication | Ethernet |
| A/D Converter | 24 bits |
| Freq. Response | DC~50kHz (+0.5dB ~ -3dB) |
| Max. Sampling Rate | 128kHz |
| Anti-aliasing filter | |
| Cut-off Frequency | 1/2.56 of sampling rate |
| Stop-band Attenuation | >-120dB/Oct. |
| Flatness | ±0.05dB Within analysis frequency range |
| Power Supply | POE/5V DC, 10W |
| Dimensions | 188×102×32mm |
| Weight | Typ. 490g |
| Environmental Conditions | |
| Operating Temperature | -10 to 50°C |
| Operating Humidity | 20 to 90%RH @40°C |
| Storage Temperature | -40 to 60°C |
| Storage Humidity | 90%RH 24h@50°C |
| Vibration Resistance |
Frequency cycle range: 5~55~5Hz Drive amplitude (peak): 0.19 mm Sweep frequency: <1Oct./min Duration of resonant: 10min Vibration direction: x, y, z |
Figure 1 Single-System Block Diagram
Figure 2 Multi-System Block Diagram
Figure 3 System Block Diagram
DE-BSP Basic Platform Software
Key Feature & Capabilities
Cross-Platform Compatibility
Supports Windows XP through Windows 10 (32/64-bit)
Comprehensive Test Management
Parameter configuration & function control
Real-time analysis & post-processing
Data visualization:
Interactive cursor measurements
Curve scaling & waveform manipulation
Multi-format data browsing
Advanced Data Handling
Long-duration continuous recording
Built-in data management & basic processing tools
Automated report generation
User-Centric Design
Intuitive workflow from acquisition to analysis
Customizable display layouts
Switch
Optional of 4, 8 and 16 100M Ethernet ports
1 Gigabit Ethernet ports
Support POE
Support IEEE1588 network synchronization
220V AC power supply
C-4 Signal Input Cable
4-core cable
Default 5m bare cable or 1.5 m cable with bridge box