61results about How to "Consistent control" patented technology

A control system for an electric arc welder performing a welding process between an electrode and a workpiece, which system comprises: a high speed switching type power supply with a controller operated at a switching frequency of at least about 10 kHz with an input current control signal to adjust the output current of the power supply; a first sensor sensing the actual arc voltage; a second sensor sensing the actual arc current; a first circuit for creating a power signal representing the desired real time power level at progressive times during the welding process; a second circuit for creating a function of the sensed actual voltage and the sensed actual current; and a third circuit for adjusting the current control signal in accordance with the difference between the power signal and the function of the actual voltage and current, preferably arc power.

A system and a method for remotely controlling devices are provided. The system includes a foot pedal unit having a moveable member. The system further includes a transmitter operatively associated with the moveable member. The transmitter transmits a first signal in response to at least partial displacement of the moveable member when a first device is selected. The transmitter transmits a second signal in response to at least partial displacement of the moveable member when a second device is selected.

A control module advantageously reduces cost and enhances reliability, design flexibility, ease of assembly, and performance of a flywheel operated hand tool. The control module includes a thin film printed circuit with non-contact speed sensing of a flywheel to more accurately set the target speed and control transfer kinetic energy thereof to a fastener, achieving a desired depth regardless of variations in component performance and battery voltage. The printed circuit also includes long service life thin film switches for responding to trigger and safety inputs. Furthermore, the control module responds to a user speed selection and to preset speed selection ranges to reconfigure the controls as appropriate to constraints of a fastener drive assembly and to user preferences.

There is provided a machine component having an IC tag attached thereto, which can be controlled consistently from manufacture to disposal without the IC tag missed on the way. The machine component is embedded with the IC tag (110) made up of an IC chip having recorded thereon information unique to the relevant machine component and an antenna connected electrically with the IC chip.

A control system for a linear vibration motor capable of eliminating necessity of a separate sensor of detecting the motion of the motor. The linear vibration motor includes a stator provided with a winding, and a vibrator provided with a permanent magnet. The winding is fed with a drive current to generate a magnetic field which interacts with the permanent magnet to cause the vibrator to reciprocate linearly relative to the stator for producing a vibration. The control system includes a controller which detects an ongoing amplitude, i.e., the motion represented by the displacement, speed, or acceleration of the vibrator and provides ON-periods of feeding the driving current to the winding in a varying amount based upon the ongoing amplitude detected in order to keep a vibration amplitude of the vibrator constant. The controller is characterized to provide OFF-period in which the controller instructs not to feed the drive current and in which the controller detects a voltage developed across the winding and determines the ongoing amplitude based upon the detected voltage. Thus, the winding can be best utilized commonly to drive the motor and to sense the ongoing amplitude or motion of the vibrator, thereby eliminating an additional sensor for detection of the motion of the vibrator.

The invention relates to a model reference self-adaptive sliding mode control method for a vertical takeoff and landing reusable launch vehicle, and belongs to the technical field of aircraft control.A self-adaptive sliding mode reaching law with fixed convergence characteristics and a second-order fixed-time convergence extension state observer are introduced into the design of a model referenceself-adaptive sliding mode controller, the capability of a system for suppressing complex external interference is improved accordingly, and meanwhile the precision and tracking speed of model tracking are increased.

A bumper includes a beam and an energy absorber supported thereon. The energy absorber includes horizontal walls, each having a front portion, a rear portion, and an interconnecting mid-portion that offsets and misaligns the front and rear portions. Upon impact, the front and rear portions collapse with the offset mid portion wrapping back upon itself with a predictable energy-absorbing collapse. The energy absorber further includes flanges and friction pads that frictionally engage the top and bottom of the beam to temporarily retain the energy absorber to the beam. In one embodiment, the front beam wall includes at least one aperture, and the energy absorber includes a tubular column extending from its front wall through the aperture in the front beam wall to the rear beam wall. By this arrangement, the front wall of the energy absorber receives support from the front beam wall via the structural column.

A zeroing adjustment for a depth control system of an agricultural seed planting implement has an adjustable link to compensate for the variable effects of tolerance stack-up and wear, so that all planting units of the implement can be adjusted to a common zero ground penetration setting from which depth settings can be made.

A bumper includes a beam and an energy absorber supported on its face. The beam includes front and rear beam walls, with a pair of apertures in the front beam wall, and further the energy absorber includes a pair of tubular structural columns extending from its front wall through the aperture in the front beam wall to the rear beam wall. By this arrangement, the front wall of the energy absorber receives support from the rear beam wall via the structural columns during a vehicle crash.

A system and a method for remotely controlling devices are provided. The system includes a foot pedal unit having a moveable member. The system further includes a transmitter operatively associated with the moveable member. The transmitter transmits a first signal in response to at least partial displacement of the moveable member when a first device is selected. The transmitter transmits a second signal in response to at least partial displacement of the moveable member when a second device is selected.

An automatic sandwich maker designed to automate the process of preparing sandwiches, including hamburgers, is included. This automated sandwich maker is designed for use in commercial kitchens, including small commercial kitchens, such as fast-food kitchens. The apparatus and method for automatically making sandwiches overcomes the drawbacks and limitations of the prior art. The individual sandwich process can be controlled by communications interface with a point of sales system. The inventive apparatus and method reduces manpower requirements for restaurants, provides enhanced ingredient control, and improves overall product quality.

A modular floor terminal mounted in the floor of an occupied space for delivering air from an underfloor air plenum to the occupied space. The modular floor terminal includes a square or rectangular housing with an air inlet at the bottom and an air outlet at the top. A rotating damper is positioned in the housing between the air inlet and the air outlet. The position of the damper is controlled by an actuator which is in turn controlled by a thermostat / controller in the occupied space above the floor.

Method and apparatus for pneumatically conveying granular material from a supply thereof through a conduit to a plurality of receivers for temporary storage of the material prior to molding or extrusion thereof by drawing vacuum in the conduit using a vacuum pump and varying the vacuum pump speed in response to sensed vacuum level in the conduit proximate the pump.

Apparatus and methods for conveying granular plastic resin from a supply to receivers that retain and dispense the resin when needed by process machine include a vacuum pump, an air flow limiter connected to the suction head of the vacuum pump, a first conduit connecting the receivers to the air flow limiter, and a second conduit connecting the resin supply to the receivers.

A centrifugal juicer (100) is disclosed that can be configured to control the pulp content in the juice produced by the juicer. To this end, the centrifugal juicer comprises a pulp content selection function that controls the rotation speed of the motor driving the sieve (132) of the centrifugal juicer. The openings (133) in the sieve are dimensioned such that pulp is forced through the openings at certain rotation speeds of the motor.

Method and apparatus for air flow regulation comprise a vertically oriented tube, a sail assembly positioned in the tube and moveable therewithin responsively to air flow through the tube to regulate rate of air flow through the tube and to stop air flow through the tube upon air flow rate through the tube exceeding a preselected value with a detector for sensing when the sail assembly has stopped air flow through the tube as a result of air flow rate exceeding said pre-selected value.

This invention relates to an apparatus and a method that reduces a moisture content of an agricultural product, particularly by using moisture sensors and / or temperature sensors. The apparatus includes at least one moisture sensor, optionally at least one temperature sensor, a controller, a flow regulator and / or a dryer. The method includes obtaining a moisture content and a temperature to calculate a product flowrate and optionally an energy input. A product flowrate signal is used to vary the flow regulator and an energy input signal is used to vary the energy regulator.

A zeroing adjustment for a depth control system of an agricultural seed planting implement has an adjustable link to compensate for the variable effects of tolerance stack-up and wear, so that all planting units of the implement can be adjusted to a common zero ground penetration setting from which depth settings can be made.

An agricultural planting implement is used to plant seed in a field. The implement includes an electrically-driven seed meter that is spaced on a toolbar of the implement. The seed meter, or other metering member, is a precision meter that is used to control the volume, spacing, and location of a seed that is delivered from a meter to the field. A seed source, such as a seed cart or hopper, is attached to the seed meters to provide an on-demand amount of seed to the meters for planting in the field.

A control module advantageously reduces cost and enhances reliability, design flexibility, ease of assembly, and performance of a flywheel operated hand tool. The control module includes a thin film printed circuit with non-contact speed sensing of a flywheel to more accurately set the target speed and control transfer kinetic energy thereof to a fastener, achieving a desired depth regardless of variations in component performance and battery voltage. The printed circuit also includes long service life thin film switches for responding to trigger and safety inputs. Furthermore, the control module responds to a user speed selection and to preset speed selection ranges to reconfigure the controls as appropriate to constraints of a fastener drive assembly and to user preferences.

A system of controlling displaying of image data has a source device (10), for example a BD player, which processes source image data for outputting the image data in dependence of first display parameters, and has a user control (15) for controlling the display parameters. The image data is transferred from the source device to a display device (13), which displays the image data in dependence of further display parameters, and has a further user control (16) for setting the further display parameters. The source device provides a display control mask structure, which is transferred with the image data to the display device. The display device displays the image data in dependence of the display control mask structure by masking said setting of the further display parameters according to the display control mask structure. Advantageously in a 3D system the depth settings of the display device are controlled based on the display control mask structure based on data from the content author

The invention relates to an interaction object control method and belongs to the technical field of man-machine interaction. The method comprises the steps that the quantity of logical pixels, corresponding to a touch control operation, aiming at an interaction object, executed in a touch screen of a terminal is acquired; the density of the logical pixels of the touch screen is acquired; according to the density of the logical pixels and the density of reference pixels, the quantity of the logical pixels corresponding to the touch control operation is corrected; according to the corrected quantity of the logical pixels, the interaction object is controlled. According to the interaction object control method, after the quantity of logical pixels corresponding to the touch control operation aiming at the interaction object is acquired, according to the density of the logical pixels and the density of the reference pixels of the touch screen, the quantity of the logical pixels corresponding to the touch control operation is corrected, and according to the corrected quantity of the logical pixels, the interaction object is controlled, so that when a sliding control operation with the same physical distance is conducted in the random touch screen, the control effects on the interaction object is kept uniform finally.