Optical Micrometers from Riftek LLC

Optical micrometers use a “shadow” measurement principle whereby collimated laser light is transmitted towards a receiver.  The edges of the shadow cast by an object in the beam’s path are accurately measured by the detector array inside the receiver unit.  

Optical Micrometers are non-contact devices that ideally measure diameters of wires, rods, and other cylinders in addition to gaps, edge positions, and dimensional characteristics of geometric objects. 

The series includes two lines of models: 

  • RF651 – Direct through-beam micrometers and 
  • RF656 – High precision through-beam micrometers with a telecentric lens

 RF 651 Series  

  • Direct through-beam micrometers
  • Long distance between transmitter and receiver

              See detailed specifications


      

RF 656 Series

  • High precision micrometers with telecentric lenses

  See detailed specifications


                                                                                                     

Model RF651 Operation Principles

The micrometer operation is based on the so-called ‘shadow’ principle. The micrometer consists of two blocks – transmitter, 1, and receiver, 2. Radiation of a semiconductor laser 3 is collimated by a lens 4.  With an object, 5 placed in the collimated beam region, the shadow image formed is scanned with a CCD photodetector array 6. A processor 7 calculates the position (size) of the object from the position of shadow border (s).

Model RF656 Operation Principles

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The micrometer operation is based on the so-called ‘shadow’ principle. The micrometer consists of two blocks – transmitter, 1, and receiver, 2. Radiation of a red LED 3 is collimated by a lens 4.  With an object, 5 placed in the collimated beam region, shadow image formed by telecentric lens 6 and is scanned with a CCD photodetector array 7. A processor 8 calculates the position (size) of the object from the position of shadow border(s).

Applications

High precision non-contact measurements:

  • Object and target displacements

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  • Large width or diameter

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  • Diameter and profile

  • Object recognition

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  • Gaps

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  • Dual-axis

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Video

Pipe diameter control, SKD-MHs system

Find detailed information about this device here. 

A demo video is available here.

Optical Measurement System

In this application of an optical micrometer, a system accurately measures threaded automobile parts for bench-top inspection and quality assurance.

Find detailed information about this device here.

A demo video is available here.

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