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Strain Measurement Instruments
Basic instrumentation requirements call for stability, accuracy and high resolution when making measurements under static loading conditions, and particularly where measurements are to be taken over long periods of time. Micro-Measurements offer our P3 Strain Indicator and D4 Data Acquisition Conditioner to meet these demanding criteria. In addition, our MultiDAQ is a single-channel USB device suitable for fast and simple test setups.
      Full screen preview   Full screen preview   Full screen preview
      MultiDAQ   D4   P3
   
               

Measurement Range

    ±16,000 µƐ @ GF=2.00   ±31,000 µƐ @ GF=2.00   ±31,000 µƐ @ GF=2.00
               

Connection

    RJ45   RJ45   Terminal Block or TIO
               
Input Type     Strain Gage   Strain Gage   Strain Gage
               

Bridge Types

    ¼ , ½ , Full Bridge   ¼ , ½ , Full Bridge   ¼ , ½ , Full Bridge
               

Bridge Completion

    120Ω, 350Ω, 1000Ω, internal HB 1KΩ   120Ω, 350Ω, 1000Ω, internal HB 1KΩ   120Ω, 350Ω, 1000Ω, internal HB 1KΩ
               

A/D Converter

    24 bit Delta-Sigma   24 bit Delta-Sigma   24 bit Delta-Sigma
               
Max. Input     ±8 mV/V
@ GF = 2.0
  ±15.5 mV/V
@ GF = 2.0
  +/-15.5mV/V
@ GF = 2.0
               

Resolution

    1µƐ @ GF=2.00   1µƐ @ GF=2.00   1µƐ @ GF=2.00
               
Accuracy     1% of reading @GF=2.0   0.1% of reading
±3 counts
  0.1% of reading
±3 counts
               

Excitation

    2.5 Volts (nominal,fixed)   1.5 Volts (nominal,fixed)   1.5 Volts (nominal,fixed)
               

Power source

    USB only   USB only   USB, battery, or DC Input
               

Data Rate (Samples per second)

    80 S/s   8 S/s   1 S/s
               
Max. Storage     PC dependent   PC dependent   32GB SD card or PC
               
Max. Channels (multiple units)     12   24   24
               
Software     Windows based   Windows based   Windows based
               

Drivers

    Labview, .NET interface   Labview, .NET interface   Labview, .NET interface

 

 


 

The P3 Strain Indicator and Recorder


The P3 Strain Indicator and Recorder is a portable, battery-operated instrument. It can accept up four inputs from quarter, half, and full bridge strain gage circuits, including strain-gage-based transducers. Front-panel lever operation terminal blocks enable fast connection and reconfiguration, and the TIO option adds high-quality Transducer Input connectors. A highly stable measurement circuit, regulated bridge excitation supply, and precisely settable gage factor enable measurements of ±0.1% accuracy and 1 microstrain resolution. The P3 can be operated stand-alone via the membrane switch front panel or from the supplied software though USB to a PC.

 

Learn more about the P3 Indicator

The Model D4 Data Acquisition Conditioner


The Model D4 Data Acquisition Conditioner is a USB-powered instrument that connects to a personal computer. It can accept up four inputs from quarter, half, and full bridge strain gage circuits via RJ45 connectors. A highly stable measurement circuit, regulated bridge excitation supply, and precisely settable gage factor enable measurements of ±0.1% accuracy and 1 microstrain resolution. Operation is via the supplied software and can operate up to six D4s concurrently for up to 24 channels.

 

Learn more about the D4 Data Aquisition Instrument

The MultiDAQ or StudentDAQ


The MultiDAQ is a unique and simple single-channel device. Whilst it does not have the advanced features of its multi-channel siblings, it enables quick measurements with a minimum of setup. Strain gage inputs (quarter, half and full bridge) can be connected via the RJ45 connector and set up with the supplied software. Measurements units can be microstrain or user-defined for load or displacement measurements, and up to twelve devices can be operated at the same time. The internal quarter bridge resistance is fixed; three versions are available for 120, 350 or 1000 Ω inputs.

 

Learn more about the MultiDAQ / StudentDAQ

 

 

Explore our extensive collection of tutorials and informational videos on a variety of strain measurement topics.

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