A novel concept for a digital optical position transducer is presented. This compact and rugged device is electrically passive and requires only a dual-fiber optical link. Wavelength division of a broad-spectrum semiconductor light source is employed to multiplex the channels of a 10-bit digital position encoder. A preliminary design was evaluated and found to have a 10-dB on–off contrast ratio and a 12-dB insertion loss.
© 1986 Optical Society of AmericaFull Article | PDF Article