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  2. Dehomag - Wikipedia

    en.wikipedia.org/wiki/Dehomag

    The punch cards bore the indicia of the German subsidiary Dehomag. [ 10 ] [ 11 ] [ 14 ] Leon Krzemieniecki, the last surviving person involved in the administration of the rail transportation to Auschwitz and Treblinka , stated he knew the punched card machines were not German machines, because the labels were in English.

  3. DC motor - Wikipedia

    en.wikipedia.org/wiki/DC_motor

    A compound DC motor connects the armature and fields windings in a shunt and a series combination to give it characteristics of both a shunt and a series DC motor. [5] This motor is used when both a high starting torque and good speed regulation is needed. The motor can be connected in two arrangements: cumulatively or differentially.

  4. File:On Physical Lines of Force.pdf - Wikipedia

    en.wikipedia.org/wiki/File:On_Physical_Lines_of...

    Original file (712 × 1,193 pixels, file size: 1.24 MB, MIME type: application/pdf, 62 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  5. Armature Controlled DC Motor - Wikipedia

    en.wikipedia.org/wiki/Armature_Controlled_DC_Motor

    A DC motor consists of two parts: a rotor and a stator. [3] The stator consists of field windings while the rotor (also called the armature) consists of an armature winding. [ 4 ] When both the armature and the field windings are excited by a DC supply, current flows through the windings and a magnetic flux proportional to the current is produced.

  6. Fault model - Wikipedia

    en.wikipedia.org/wiki/Fault_model

    A fault model, falls under one of the following assumptions: single fault assumption: only one fault occur in a circuit. if we define k possible fault types in our fault model the circuit has n signal lines, by single fault assumption, the total number of single faults is k×n. multiple fault assumption: multiple faults may occur in a circuit.

  7. Active disturbance rejection control - Wikipedia

    en.wikipedia.org/wiki/Active_Disturbance...

    This disturbance rejection feature allows users to treat the considered system with a simpler model insofar as the negative effects of modeling uncertainty are compensated in real time. As a result, the operator does not need a precise analytical description of the base system; one can model the unknown parts of the dynamics as internal ...

  8. Internal model (motor control) - Wikipedia

    en.wikipedia.org/wiki/Internal_model_(motor_control)

    In the subject area of control theory, an internal model is a process that simulates the response of the system in order to estimate the outcome of a system disturbance. The internal model principle was first articulated in 1976 by B. A. Francis and W. M. Wonham [1] as an explicit formulation of the Conant and Ashby good regulator theorem. [2]

  9. Reluctance motor - Wikipedia

    en.wikipedia.org/wiki/Reluctance_motor

    The switched reluctance motor (SRM) is a type of reluctance motor. Unlike brushed DC motors , power is delivered to windings in the stator (case) rather than the rotor . This simplifies mechanical design because power does not have to be delivered to the moving rotor, which eliminates the need for a commutator .