Browse Prior Art Database

Prevention of Contamination in an Optical Tachometer

IP.com Disclosure Number: IPCOM000054147D
Original Publication Date: 1980-Jan-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Related People

Authors:
Justus, DJ [+details]

Abstract

An optical tachometer is constructed with a sealing ring to prevent the entry of contaminants into the "window" area of the device.