WS-3811 Strain Gauge Signal Acquisition System

1. Overview


The WS-3811 series strain signal acquisition system is based on up to digital control and acquisition technology. The instrument is highly integrated. Its gain and cutoff frequency of filter are controlled by program. It directly collects strain signal and convert to digital data through computerís USB or Ethernet (TCP/IP protocol) interface.
2. Main Features
  Fully Programming Control.
  With USB1.1 computer interface, the instrument may be directly connected to computer.
  With Ethernet interface (Selectable), the system works on TCP/IP protocol.
  Static, dynamic and voltage measurement.
  The instrument case is stable and light. It is suitable for field experiment.
  Single Instrument may have 16 channels. Multi-instruments may be connected through network.
  Running configuration in MS-Windows.
  Measuring range is ±40000µE for strain and ±5V for voltage.
3. Technical Specifications  

• Measuring method: Static and dynamic strain measurement, voltage measurement.
• Channel number: 4, 8, 16channels. Multi-channel may consist of multi instrument through Ethernet network.
• Computer Interface: USB or Ethernet port with 10/100BaseT.
• Programmable Control.
• Measurement Range: Strain gain 1:±4000µE;Strain gain2: ±40000µE;Voltage:±5V.
• Sensitivity: 1000µE/V; 10000µE/V.
• Measuring Veracity: 0.5%FS.
• Digital Filter (Program Control).
• Filter Mode: 8 levels ellipse low-pass filter.
• Cutoff frequency from 10Hz~50 kHz programmable.
• The undulation of smoothness of the filter is less than 0.1dB during f<0.5fo.
• The attenuation of the filter is -80dB/Oct.
• Programmable frequency range is from DC~50 kHz.
• linearity: 0.1%FS.
• Strain Gauge.
• Gauge resistor is 120ohms. It may make of 1/4 gauge, half gauge and full gauge.   
• Strain sensor: 120ohms.
• Strain sensor sensitivity K=2.
• Bright excitation voltage is ±1V.
• Automatic balance.
• Standard strain gaugeís cable length is 2m.
• Excursion.
• Time excursion <3µE/2 per hour.
• Working temperature excursion <1µE/°C.
• Working Temperature Range:0°C~50°C.
• Noise.
• Dynamic Measuring Ratio of Signal and Noise>40dB.
• Static Measuring Ratio of Signal and Noise<1µE.
• Supply: AC220V/50Hz; DC12V.
• Dimension: 330*300*135mm.
• Weight.
• For 4 channel and 8 channel about 3Kg.
• For 16 channel about 4Kg.
• Software: The software functions are still and dynamic strain measurement, oscilloscope, compensation of sensitivity factor (K), stress calculation, curve display and plot, data structure conversion for Word, MatLAB and Excel.


For more information about the system, please contact