Electro-Optic Segment- Segment Sensors for Radio and Optical Telescopes

A document discusses an electro-optic sensor that consists of a collimator, attached to one segment, and a quad diode, attached to an adjacent segment. Relative segment-segment motion causes the beam from the collimator to move across the quad diode, thus generating a measureable electric signal. This sensor type, which is relatively inexpensive, can be configured as an edge sensor, or as a remote segment-segment motion sensor.

This work was done by Alex Abramovici of Caltech for NASA’s Jet Propulsion Laboratory. NPO-47528

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Electro-Optic Segment-Segment Sensors for Radio and Optical Telescopes (reference NPO-47528) is currently available for download from the TSP library.

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