Power measuring apparatus

专利名称：Power measuring apparatus发明人：Austin G. Boldridge, Jr.申请号：US06/143377申请日：19800424公开号：US04348638A公开日：19820907

摘要：Apparatus for measuring power consumed by a load connected via mains to asource of alternating current having a given fundamental frequency includes means forgenerating a first signal proportional to the instantaneous voltage across the load and atransformer secondary toroidally wrapped around one of the mains for generating asecond signal proportional to the instantaneous current through the load. Tunedamplifiers of narrow band pass amplify the signals before they are fed to a square lowmultiplier means including photooptical devices.

申请人：CONVERSATIONAL SYSTEMS, INC.

代理机构：Hane, Roberts, Spiecens & Cohen

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