The Pratt & Whitney Electrolimit® Comparator

Featured Product from Pratt & Whitney Measurement Systems, Inc.

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Electrolimit Comparator
The Pratt & Whitney Electrolimit® Comparator offers the same resolution and accuracy as our laser-based instruments, but at a fraction of the cost. When compared with other electronic and mechanical comparators, the dynamic range (ratio of range/accuracy) of 2000 for our comparator far exceeds that of other comparators, typically replacing the full comparator indicator product line of other manufacturers. The Electrolimit Comparator is the ultimate comparator for measuring flat, cylindrical, and spherical objects. A configurable general purpose anvil (optional) provides point contact support for measuring the three geometry types. Point contact ensures high accuracy and speed by eliminating the variability and time associated with surface and line contact geometry. The Electrolimit Comparator stand is a dual rod design that is considerably stiffer than other single rod designs. The vertical slider employs kinematic contact to ensure minimal position change when locking the slider. Once the slider is locked in position, the comparator has frictionless motion and zero free play. A vertical flexure lift provides clearance for inserting and retracting parts, while maintaining sub millionth repeatability. The Electrolimit Comparator stand stiffness ensures repeatable measurements typically not achieved with other comparator stands.

The Electrolimit®Comparator measures:

  • Balls / Spheres
  • Magnetic Tape / Disk Substrates
  • Optical Components
  • Poly Films
  • Gage Blocks / Slip Gauges
  • Coating Thickness Standards
  • Plug & Pin Gauges
  • Thread Wires
  • Film Thickness
  • Gauge Block Stacks
  • Mesh Thickness
  • Textiles
  • Precision Parts 


Features & Benefits of the Electrolimit® Comparator:
  • Rigid design - For maximum repeatability and reproducibility
  • Factory calibration - Used for most measurements
  • Two-step user calibration - Allows choice of user or factory calibration
  • Flexible anvil fixturing - Ensures system integrity and accommodates a variety of measurement applications
  • GageCal® PC control software - Microsoft® Windows based software reduces data entry, eliminates transcription errors, and  speeds up measurements. Built-in gage tolerancing for many applications including balls, pins, plugs, blocks, threads, etc. 


Pratt & Whitney Measurement Systems
Pratt & Whitney Measurement Systems is a global supplier of ultra-precision metrology instruments, inspection gaging systems, and length measuring machines. Our comparator instruments incorporate the latest in laser and sensor technology allowing for fast and accurate measurements. Industry applications span across a wide range including, but not limited to: aerospace components, automotive parts, medical devices, thin film materials, roller bearings (tapered, cylindrical, spherical, needle), transducers, optical components, semiconductor devices, gear-spline-thread assemblies. 
Calibration laboratory applications include: gage blocks, internal and external threads, national pipe threads (NPT), cylindrical plugs, pin gages, ring gages, dial / test indicators, length standards, taper gages, micrometers, calipers, snap gages, disc masters, API gages, thread wires, bore gauges, and your precision parts.