Design of telecentric imaging systems for noncontact velocity sensors

Christian Berger

doi:10.1117/1.1504105

1 October 2002 Design of telecentric imaging systems for noncontact velocity sensors

Christian Berger

Optical Engineering, Vol. 41, Issue 10, (October 2002). https://doi.org/10.1117/1.1504105

Optical sensors for noncontact velocity measurement require imaging systems with constant optical magnification in spite of the variable distance between the sensor and the object of measurement. This requirement can be met using telecentric systems. When such systems are set up, several design considerations must be taken into account. These concern the decision as to whether a single or a double telecentric system shall be used, as well as the choice of the optical magnification and the dimensioning of the aperture stop. The results of the theoretical analysis are confirmed by experiments with a prototype velocity sensor for belt drives.

©(2002) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Christian Berger "Design of telecentric imaging systems for noncontact velocity sensors," Optical Engineering 41(10), (1 October 2002). https://doi.org/10.1117/1.1504105

Published: 1 October 2002

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