Voyager Intermittent Fault Detector (VIFD)

Voyager Intermittent Fault Detector (VIFD)


The portable Voyager Intermittent Fault Detector™ (VIFD™) is capable of interfacing with 128, 256, or 512 electrical connection points.  The VIFD™ is a patented diagnostic instrument that can simultaneously and continuously monitor all unit under test (UUT) circuits, individually at the same time, detecting intermittent faults that occur, even as short as *50 nanoseconds (0.00000005 seconds) in duration. 

In addition to detecting and isolating intermittent faults, the VIFD™ AutoMap™ feature will automatically interrogate and store the as-designed wiring configuration for a good unit and then based on that "gold" configuration, detect any open, short, ohmic, impedance, drift or mis-wiring problem in subsequent UUTs. 

Patented, with additional U.S. and foreign patents pending


  • Rapidly detects and isolates permanent and intermittent shorts, opens, instability and EMI events

  • Rapid set-up with powerful test software

  • Quick testing: results displayed real-time

  • VIFD™ portable variant available with 128, 256, or 512 test points

  • Reduces No Fault Found (NFF)

  • Reduces life-cycle support costs

  • Increases operational availability and asset availability


  • Intermittency - detected to less than *50ns on every test point individually, simultaneously and continuously

  • Continuity - programmable continuity checks against referenced values

  • Log Scope - instant display of a circuits or component's stability

  • Shorts - two modes providing shorts indication and shorts tracing capability

  • Analyze - provides an impedance signature for the Unit Under Test

  • AutoMap™ - rapid mapping of circuits for complex and/or ad hoc testing

  • Distance to Fault - Optional, integrated Spread-Spectrum TDR locates distance-to-fault within 1%

  • Circuit Analyzer - Optional, integrated Huntron 30 technology provides Signature Analysis capabilities

Intermittent fault detection specifications measured using Hewlett-Packard 8111A Pulse/Function Generator