Wireless Static Strain Testing System - WZ-88S Wireless Static Strain Testing System - WZ-88S

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.

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  • Product Description
  • Specification
  • System Configuration
  • Software
  • Modules/Accessories

 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 Channel8 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. Resolution1με
     Zero Drift≤3με/4h
     Self-Balancing Range±15000με (±1.5% of strain gauge resistance)
     Strain Gauge Sensitivity Coefficient1.0 ~ 3.0 (Auto-calibrating)
     Auto Correction Range of Wire Resistance0.0 ~ 100.0 Ω
Bridge Excitation
     Bridge ConfigurationFull, 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 Voltage2V
Communication ModeZigBee
Communication Distance500m (Visual)
A/D Converter24 bits
Max. Sampling rate5Hz
Buffer Memory8M
Power Supplylithium battery, up to 8h of battery life (Fully charged), 3W (DAQ unit)
     DAQ Unit150×90×35mm
     Communication Controller68×38×28mm
     DAQ UnitApprox. 600g
     Communication ControllerApprox. 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 Humidity90%RH24h@50°C
     VibrationFrequency 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
  • 8 input channels

  • Sampling rate up to 5Hz

  • ZigBee communication up to 500 meters

  • Software-selectable full bridge, half bridge, three-wire quarter bridge(120Ω/350Ω) and two-wire public compensation quarter bridge(120Ω/350Ω)

  • Built-in lithium battery, up to 8h of battery life and 60 days of standby time (Fully charged)

 WZ-88S ZigBee Wireless Communication Controller
  • Connect to the computer via USB

  • Powered by USB


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