The WZ-88S Wireless Static Strain Testing System, with the use of independent distributed module structure, specially designed for the strength test of large mechanical structure. Expanded via wireless ZigBee communication, the input signals of static stress-strain of no more than 32 DAQ units can be measured and analyzed wirelessly by a single computer. WZ-88S is widely used for the performance testing and analysis of various structure in a variety of fields such as civil engineering, mechanical engineering, aerospace.
Samll and portable, easy installation with use of strong magnet base
The application of advanced shielding technology and goog grounding make the system has strong anti-interference
ability, which is suitable for testing in engineering field
ZigBee wireless communication, independent modular design, 8 channels per DAQ unit, 16 DAQ unit (128 channels)
controlled by a single controller, 2 controllers (256 channels) connected to a single computer at the same time
The maximum sampling rate up to 5Hz, resolution up to 1με
Software settable full bridge, half bridge, quarter bridge (120 Ω, three-wire self-compensation) and quarter bridge
(120 Ω, two-wire public compensation)
Built-in 8M buffer memory and Lithium battery
The connection state between the DAQ unit and the channel can be observed conveniently by the control software, so
as to facilitate on-site state inspection and troubleshooting
| Number of Input Channel | 8 channels/DAQ unit, 16 DAQ unit (128 channels)/controller, 2 controllers (256 channels)/computer |
| Full-scale Voltage Value | ±0.02V, ±5.0V |
| Strain Measurement | |
| Full-scale Strain Value | ±20000με |
| Indication error | ≤0.5％±3με |
| Min. Resolution | 1με |
| Zero Drift | ≤3με/4h |
| Self-Balancing Range | ±15000με (±1.5% of strain gauge resistance) |
| Strain Gauge Sensitivity Coefficient | 1.0 ~ 3.0 (Auto-calibrating) |
| Auto Correction Range of Wire Resistance | 0.0 ~ 100.0 Ω |
| Bridge Excitation | |
| Bridge Configuration | Full, Half, Three-wire quarter bridge, Two-wire public compensation quarter bridge |
| Bridge Completion Resistors | 120Ω/350Ω (Three-wire quarter bridge) 60 ~ 10000Ω (Two-wire public compensation quarter bridge, Half bridge, Full bridge) |
| Bridge Voltage | 2V |
| Communication Mode | ZigBee |
| Communication Distance | 500m (Visual) |
| A/D Converter | 24 bits |
| Max. Sampling rate | 5Hz |
| Buffer Memory | 8M |
| Power Supply | lithium battery, up to 8h of battery life (Fully charged), 3W (DAQ unit) |
| Dimensions | |
| DAQ Unit | 150×90×35mm |
| Communication Controller | 68×38×28mm |
| Weight | |
| DAQ Unit | Approx. 600g |
| Communication Controller | Approx. 100g |
| Environmental Conditions | |
| Operating Temperature | - 10°C to 50°C |
| Operating Humidity | 20 ~ 90%RH@40°C |
| Storage Temperature | - 40°C to 60°C |
| Storage Humidity | 90%RH24h@50°C |
| Vibration | Frequency cycle range: 5Hz ~ 55Hz ~ 5Hz Drive amplitude (peak): 0.19mm Sweep frequency: ≤1Oct./min Duration of resonant: 10min Vibration direction: x, y, z |
Figure 1 System Block Diagram of Signal DAQ Unit
Figure 2 System Block Diagram of Single Controller
Figure 3 System Block Diagram of Multiple Controllers
BPS Basic Platform Software
Running on XP/Win7/Win8/Win10 operating system
Parameters setting, Function control, Real-time/post-acquisition analysis, data browsing, cursor readouts, scaling curve, data management and simple processing, report generation, long-term continuous data recording, etc.
| WZ-88S DAQ Unit | |
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| WZ-88S ZigBee Wireless Communication Controller | |
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