Abstract:
Eine Regelungsanordnung (6), insbesondere zur Leistungsregelung und/oder Impedanzanpassung der Ausgangsimpedanz eines Hochfrequenzleistungsgenerators an die Impedanz einer Last, insbesondere einer Plasmaentladung, weist auf: a. einen ersten Regler (13), dem ein erster Sollwert (14) und ein erster Istwert (12) sowie ein Korrekturwert (15) zugeführt sind, wobei der erste Regler (13) eingerichtet ist, unter Berücksichtigung des Korrekturwerts (15) einen ersten Stellwert (22) zu erzeugen, b. eine Korrekturwertermittlungsvorrichtung (16), der ein Kontrollwert (24) zugeführt ist, und die eingerichtet ist, unter Berücksichtigung des Kontrollwerts (24) und eines Vorgabewerts (17) den Korrekturwert (15) zu ermitteln, wobei c. die Korrekturwertermittlungsvorrichtung (16) und der erste Regler (13) derart ausgelegt sind, dass der Korrekturwert (15) bei Abweichung des Kontrollwerts (24) von dem Vorgabewert (17) den ersten Regler (6) so beeinflusst, dass der erste Istwert (12) von dem ersten Sollwert (14) im eingeregelten Zustand des ersten Reglers (6) abweicht.
Abstract:
A system for maintaining a desired sealing force is provided, which incorporates a closed loop control system. The system includes a platen (18), which has a surface for making contact with one or more items to be sealed, a motor (14) for producing a linear movement, a linkage (20) coupled to the platen (18) and the motor (14) for transferring the linear movement produced by the motor (14) to the platen (18), and a transducer (22) coupled between the linkage (20) and the platen (18) for measuring the force applied to the platen (18) via the linkage (20) through the linear movement of the motor (14) and producing a signal representative of the force measured. A motor controller (12) produces a motor control signal, which is supplied to the motor (14) for controlling the same. The motor control signal is used to control the linear movement produced by the motor (14). The motor controller (12) further receives the feedback signal from the transducer (22), and correspondingly adjusts the value of the control signal used to control the magnitude of the linear movement.
Abstract:
Tow bar arrangement (100) for interconnection of a pulling vehicle (10) and a pulled trailer (20).The arrangement (100) comprises a control device (110) with a force sensor (111) arranged to sense an instantaneous relative force between vehicle (10) and trailer (20).The control device (110) is arranged to produce a control signal for an electric motor (21) arranged to propel the trailer (20) so that a motor force counter-acts said measured force.The invention is characterised in that the control device (110) is arranged to a first time series of force measurements, in that the control device (110) comprises a low-pass filter (112) producing a second low-pass filtered time series, and in that a regulator (113) is ar-ranged to regulate said second time series to produce said control signal.
Abstract:
One embodiment of a method for activating a stimulus on a notification device includes encoding an instruction to activate the stimulus in a voltage dropout pulse of a synchronization protocol and sending the synchronization protocol, including the voltage dropout pulse, over a single two wire circuit to which a fire notification device and a mass notification device are coupled, where the notification device is the fire notification device or the mass notification device.
Abstract:
Described herein is a method and a system for automated simultaneous control of at least two process characteristics of a continuous production process with at least one fluid stream, at least two unit operations, at least one process control system and at least one conditioning volume.
Abstract:
A device and method of iterative motion control is described using a non-linear table in a feedback loop to convert a desired acceleration input to motor drive outputs, where the motor is part of a controlled motion system. The table may be a two- or three-dimensional table additionally responsive to the current system state, such as shaft speed, position, or phase angle. The motor may be a two-coil stepper motor where the corrected non-linearity serves the purpose of maintaining desired toque. Inputs may be waypoints comprising both a target position and target velocity. The motion system may use an inverted SCARA arm. Up to three non-linear correction tables may be used: a first corrects motor steps to a more accurate shaft angle; a second corrects motor drive signals to achieve desired torque; a third correct motor drive signals responsive to shaft speed. Tables may be generated by a series of motion passes using a fixed shaft offset angle for each pass.
Abstract:
A system for controlling the electrical energy for a group of buildings with a plurality of sensors (5) distributed in buildings (4) to monitor in real time variables associated with the electrical system of each building (4). It has a control unit (2) to compare the monitored variables of the electrical system of the buildings (4) with reference variables (1) and also generates a response signal based on the result of the comparison. Actuators (3) distributed in the buildings (4) perform an action on the electrical installation of the building based on the response signal generated by the control unit (2).
Abstract:
A reductant insertion system for inserting reductant into an aftertreatment system via a reductant injector comprises a reductant insertion assembly comprising a pump operatively coupled to the reductant injector via a reductant delivery line. A compressed gas source is operatively coupled to the reductant injector and provides a compressed gas to the reductant injector for gas assisted delivery of the reductant. A controller is operatively coupled to the compressed gas source and the reductant insertion assembly and configured to determine whether there is a reductant demand for the reductant. In response to there being no reductant demand, the controller stops the pump and activates the compressed gas source for a predetermined time so as to provide compressed gas to the reductant injector at a pressure sufficient to force reductant contained in the reductant injector upstream towards the reductant insertion assembly via the reductant delivery line while the pump is stopped.
Abstract:
A point-of-use water filtration system having an idle mode and a filtration mode, the water filtration system including a feed water inlet, a pump in fluid communication with the feed water inlet via a feed water line, and a semi-permeable membrane having an upstream side and a downstream side. A first portion of the upstream side is in fluid communication with a membrane inlet and a second portion of the upstream side is in fluid communication with the concentrate outlet, and the downstream side is in fluid communication with a permeate outlet. The point-of-use water filtration system also includes a permeate line in fluid communication with the permeate outlet and a filtered water outlet, a concentrate line in fluid communication with the concentrate outlet, a flow path configured to selectively connect the permeate line to the feed water line; and a controller configured to anticipate demand for the filtration mode.