Companion IV™ Dynamometer Data Acquisition System

Uses Standard Ethernet Interface and NI CompactRIO™ Hardware


  • data acquisition I/O on boom arm
  • data acquisition system in portable cart
  • data acquisition in wall unit
  • data acquisition I/O on remote stand

<< Return to Data Aquisition choices

Companion IV (C-IV) utilizes the National Instruments CompactRIO™ hardware. C-IV integrates with Cell Assistant™ 2012 or NI LabVIEW™ for test automation. This unit comprises all equipment into one enclosure (wall, pedestal or cart), accommodating a wide variety of user defined inputs including temperature, frequency, current, and analog voltage (TC, RTD, Strain Gauge, Pressure Transducer, etc.).

I/O Options

Whichever Companion III enclosure type is chosen, several options exist for accessing its I/O. Standard thermocouple, voltage, and transducer inputs, as well as emergency stop button can be mounted on either a remote stand (shown here with throttle actuator), or on a boom swing arm. Both offer convenient access, with the boom's capacity for inputs being the larger of the two. Discuss your application with our Sales Representative to determine which configuration will work best for your application.

Companion IV Dynamometer data acquisition system utilizes NI cRIO hardware
Companion IV Dynamometer Data Acquisition system utilizes NI cRIO™ hardware.

Companion IV Offers These Advantages and More

  • Performs data acquisition, multiplexing, and analog to digital conversion
  • Includes an integral power supply for external transducer excitation
  • Standard Ethernet communication interface
  • Data Collection rates of up to 20Hz for Cell Assistant for Windows
  • Data Collection rates of up to 100Hz for Cell Assistant for LabVIEW
  • Modular system allows for easy configuration
  • Independent cold junction compensation for accurate temperature measurement
  • Rack mount utilizes Sub-D connections for external voltage interface
  • Rack mount utilizes miniature thermocouple connector for temperature inputs
  • Wall mount utilizes terminal block connections for all external interface
  • Channel count expandable in varying group sizes (module dependent) up to 128
  • Custom systems engineered upon request


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