ONE POLE ELECTRIC VOLTAGE TESTERS

Brand Owner Address Description
WIHA WIHA WERKZEUGE GMBH Obertalstr. 3-7 Schonach D-78136 Germany One-pole electric voltage testers and two-pole electric voltage testers; measuring instruments, namely, vernier calipers, folding rulers, tape rulers, graduated rulers, graduated pocket rulers; length measuring gauges made of plastic; measuring rules in the nature of meter-rules, folding meter-rules; measuring rules in the nature of telescopic meter-rules; vernier gauges and dial gauges for use in measuring length; length measuring calipers with scale and/or electronic digital display; surveying machines and instruments; angle measuring gauges; protractors; level indicators in the nature of spirit levels; surveying instruments in the nature of plane tables and stands for holding surveying measuring instruments and hand surveying measuring instruments; torque testing tools, namely, electronic sensors for analyzing and testing the amount of torque on an object;Hand tools, namely, screwdrivers, insulated screwdrivers, bits for handheld screwdrivers, soft-face hammers, mallets, tongs, scrapers, square reamers, trim pin removers, namely, hand tools for removing trim nails, squares; drill or screwdriver bits and bit holders for use in hand tools; handles specifically designed for use with screwdriver hand tools; storage receptacles for screw driver bits in the form of screw driver handles for hand tools; torque control tools, namely, hand-held torque control screw drivers and nut drivers;Non-metal hoses, namely, articulated hoses for hand tools; semi-finished plastic components for hand tools, namely, semi-finished storage receptacles and tool holders of plastic for hand tools and bits;Color is not claimed as a feature of the mark.;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. An influence resulting from double saliency of an electric motor, i.e., an influence of a deviation of the axis of an alternating current due to a rotor magnetic pole position ? on the estimation of a magnetic pole position, is eliminated, and, in particular, the magnetic pole position of a double saliency electric motor can be estimated with high precision. To this end, an alternating voltage impression section impresses an alternating voltage on an electric motor, a current detection section detects a motor current, a reference direction generation section outputs an instantaneous reference direction ?' from a rotor magnetic pole position ? of the electric motor, a vector conversion section separates the detected current into a parallel component and a quadrature component with respect to the reference direction ?', and a magnetic pole position estimation section estimates actual rotor magnetic pole position ? of the electric motor based on at least one of the parallel component and the quadrature component of the current.