98results about How to "Control deviation" patented technology

A device controls the speed of needle movement in a sewing machine and thus the stitch length based upon the movement of a motion detection device relative to a reference surface. The formation of stitches by the sewing machine is controlled by detected changes in position of the detection device relative to the reference surface in connection with a predetermined stitch length setting and starting speed, set on either the detection device, an adapter or as part of the sewing machine control. The detection device may move together with the article being sewn while the sewing machine and reference surface remain stationary, or the detection device may move with the sewing machine while the article that is being sewn and reference surface remain stationary.

A current sensor includes: a current path; a semiconductor substrate; and a Hall element on the substrate. The Hall element detects a magnetic flux in a magnetic field caused by a detection object current. The Hall element generates a Hall voltage corresponding to the magnetic flux when a driving current flowing in a direction perpendicular to the semiconductor substrate is supplied to the Hall element, and when the magnetic flux having a component parallel to the semiconductor substrate affects the Hall element. The current path is disposed on the semiconductor substrate. The current path is electrically isolated from the Hall element.

The present invention relates to a double-output half-bridge LLC serial resonant converter, comprising: a half-bridge rectifying unit, a first resonant unit, a first transformer unit, a first rectifying unit, a first output unit, a second resonant unit, a second transformer unit, a second rectifying unit, a second output unit, a voltage dividing unit, a voltage regulating unit, a light-coupling isolation unit, and a control unit. In the present invention, the double-output half-bridge LLC serial resonant converter has an inventive circuit framework, which can not only solve the unbalance load current and the output voltage cross regulation occurred in the conventional double-output convertor, but also normally modulate the no-load or light-load output voltage; therefore the output voltage deviation can be effectively controlled.

A rotation angle detection device has a magnetism detection unit, a magnetic flux generation unit for applying magnetic flux to the magnetism detection unit, and a magnetic flux alteration unit provided for the magnetic flux generation unit. The magnetic flux generation unit is rotated relatively to the magnetism detection unit. A relative rotation angle between the magnetism detection unit and the magnetic flux generation unit is detected based on a density of the magnetic flux passing through the magnetism detection unit. The magnetic flux alteration unit alters a distribution of the magnetic flux generated by the magnetic flux generation unit, to compensate a deviation of the distribution of the magnetic flux.

The invention provides an online self-service presswork design method based on a self-adaptive template. The online self-service presswork design method comprises the following steps: providing the self-adaptive template including a plurality of page elements for a user; filling a material on at least one page element of the self-adaptive template by the user; in combination with the filled material, self-adaptively adjusting the page state of the self-adaptive template according to a plurality of priority grades; judging whether all the page elements accord with all restrictive conditions or not at first after adjusting the self-adaptive template at each time; performing iteration adjustment or self-adaptive adjustment of the next priority grade when the page elements do not accord with all the restrictive conditions; receiving an input representing satisfaction or dissatisfaction of the user when all the page elements accord with all the restrictive conditions; ending the self-adaptive adjustment when the input of the user represents satisfaction; and performing self-adaptive adjustment of the next priority grade when the input of the user represents dissatisfaction till self-adaptive adjustment of the highest priority grade is finally achieved, and abandoning the self-adaptive template and selecting a new template if the user still does not satisfy.

The invention discloses a heavy duty plate feeder capable of realizing smooth transmission, and relates to material transportation and transshipment equipment. The heavy duty plate feeder comprises a drive shaft, a sealed chain belt wound on the drive shaft and a tension shaft, and chain supporting rollers for supporting the chain belt, wherein a drive chain unit is arranged on two sides of each chain unit component of the chain belt; a transverse H-shaped bearing plate is fixed in the middle; the drive chain unit is connected with the transverse H-shaped bearing plate; the sealed chain belt is engaged with a chain wheel of the drive shaft by the drive chain unit; guide wheels engaged with the chain belt are arranged at the position, corresponding to the chain wheel, of two ends of the tension shaft; the chain supporting rollers are arranged along equipment longitudinally in five lines; the chain supporting rollers in the two outer lines are chain belt driving rollers which are provided with ribs and arranged below the drive chain unit; and the chain supporting rollers in the three inner lines are chain belt bearing rollers arranged below the transverse H-shaped bearing plate. Theheavy duty plate feeder has the advantages of effectively solving the problems of shock vibration and deviation of the chain belt in the transmission process, reducing wearing of the chain belt, prolonging operation period and improving production efficiency of equipment.

A method is provided for assisting in rejoining a vertical descent trajectory that an aircraft is assumed to have to follow, using a flight management system FMS embedded onboard the aircraft, and includes the following steps: calculation of a vertical deviation VDEV, in the vertical plane, between the aircraft and the vertical descent trajectory, and comparison between the vertical deviation VDEV and a predetermined deviation threshold SVDEV; when the vertical deviation VDEV reaches the deviation threshold SVDEV, a step during which the activation of an optimized mode for catching up on the vertical descent trajectory is authorized; if the optimized mode for catching up on the vertical descent trajectory is activated, piloting of the aircraft by the flight management system FMS in optimized catch-up mode, that is to say at minimum thrust with a target rejoining speed in level VCRP and a target rejoining speed in downward trajectory, the target rejoining speed in level VCRP being equal to the maximum L / D ratio speed of the aircraft uprated by a first value V1 of between 5 and 15 knots, and the target rejoining speed in downward trajectory VCRD being equal to the maximum operating speed VMO with which the aircraft is allowed to fly downrated by a second value V2 of between 3 and 10 knots, a knot being equal to 0.514 ms−1.

A liquid ejection head according to the present invention includes a plurality of ejection openings arranged in a first direction and a plurality of electro-thermal transducers for ejecting liquid from the ejection openings, the liquid ejection head and a printing medium being subjected to the relative movement, wherein an arrangement pitch of the ejection openings forming an end group located in the respective opposite end section along the first direction is longer than an arrangement pitch of the ejection openings forming a central group located in the central section along the first direction. According to the present invention, it is possible to eliminate white streaks which may generate in a solid printing.

Signal wiring (2) is formed on one side of a base material (1), and a coverlay film (3) is laminated thereon. A plurality of protrusions (4) formed of an insulating material are formed on the upper surface of the coverlay film at a substantially constant interval in the length and breadth direction, and a ground layer (5) formed of silver paste, for example, is formed on the coverlay film excepting the positions where the protrusions are arranged. Since the film of conductive paste is formed thinner than the thickness of the top of the protrusion formed on an insulating layer, substantially meshed openings (air gap portions) can be formed on the ground layer of conductive paste because of the existence of the protrusions. Consequently, a circuit board acting similarly to a ground plane having substantially meshed air gaps can be provided.