Form & Position Measurement

Perfection all round

Process optimization with the tightest of tolerances

Precision fiber-optic sensors from fionec analyze the shape, position and running properties of workpieces contactlessly and with high accuracy. The results can be quickly compared against stored nominal data, such as that of a CAD model. This makes it possible to immediately adjust the manufacturing process, if required, including fully automatically and inline.

Using single or multi-point measuring techniques, the sensors are able to determine parameters such as roundness, evenness, parallelism or concentricity. The inspection process is non-destructive and is performed in very short measurement cycles. With diameters starting from 50 µm, the compact probes make it possible to perform 100-percent testing in even the smallest of cavities. For optimal functionality and longevity of your components.


The FDM-1 class measuring systems are characterized by especially high accuracies. Within a measuring range of 80 µm, the typical standard deviation is less than 3 nm.
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The FDM-2 class measuring systems feature a wide measuring range of 1 mm and high accuracies of under 10 nm. The system affords a great deal of flexibility for custom applications.
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The advantages

  • Fast and contactless

    The fiber-optic technology of the FDM Series features measuring speeds of up to 20 mm/s thus allowing for very short inspection times. Measurements are totally contactless, non-destructive and wear-free.

  • Maximum precision

    fionec’s fiber-optic measuring systems deliver highly accurate, absolute measurement values. The typical standard deviation is just a few nanometers. As such, the data serves as the basis for a reliable quality management system even with extremely tight manufacturing tolerances.

  • Fully integrable

    The measuring systems can be easily integrated into existing processes via hardware and software interfaces. Manufacturing and inspection processes are brought closer together, and the rapid feedback of test results into the production operation assist in continuously optimizing processes.

  • Flexibility and miniaturization

    Our fiber-optic probes are available in diameters starting from 50 µm and enable measurements to be flexibly performed even in difficult-to-access cavities. The interferometric measurement technique allows the surfaces of nearly all types of materials and reflective properties to be scanned. The use of fiber-optic cables for transmitting the data means that sensor and probe can be installed at almost any distance from one another.