专利名称:Optical positional encoder comprising
immediately adjacent detectors
发明人:Mark G. Leonard申请号:US06/747084申请日:19850619公开号:US04691101A公开日:19870901
摘要:An optical shaft encoder has a light detector configuration that includes thefunction of a phase plate. The light detectors are one- half the width of a code wheeltransmissive section and are arranged in groups of four so that each group correspondsto one pitch of the code wheel. The light detectors are interdigitated such that they areadjacent to one another and receive information from two channels. One light beamilluminates the four light detectors producing four electrical signals. The physical layoutof the light detectors causes the output signals to be phase shifted 90° from each other.These signals are combined electronically in pairs forming quadrature push pull signals.
申请人:HEWLETT-PACKARD COMPANY
代理人:Saundra S. Hand,Douglas A. Kundrat
更多信息请下载全文后查看
因篇幅问题不能全部显示,请点此查看更多更全内容
Copyright © 2019- huatuo6.com 版权所有 湘ICP备2023023988号-11
违法及侵权请联系:TEL:199 1889 7713 E-MAIL:2724546146@qq.com
本站由北京市万商天勤律师事务所王兴未律师提供法律服务