66results about How to "Improve regulation stability" patented technology

The invention discloses a flicker regulating system which resolves the problems that an existing structure is complex and hardware cost is high. The flicker regulating system comprises a test unit which comprises a photoelectric converter and a signal processing unit connected with the photoelectric converter, and the test unit is used for measuring and outputting test signals relevant to flicker of a screen to be tested. A master controller comprises a receiving module, a regulating command generating module and a regulating command output module, wherein the receiving module is used for receiving the test signals, the regulating command generating module is used for analyzing and processing the test signals according to preset programs and generating regulating commands, and the regulating command output module is used for outputting the regulating commands into the screen to be tested to control regulation of Vcom voltage in the screen to be tested. The flicker regulating system has the advantages of being simple in structure, low in cost, easy and convenient to realize, and wide in application range.

A phase locked loop is disclosed having a phase detector and a controllable oscillator coupled to the detector. A frequency divider is also included in a feedback path of the phase locked loop. The phase locked loop further comprises an evaluation means that facilitates an evaluation of a jitter of the phase locked loop. This allows an on-chip evaluation of the jitter of a phase locked loop to be performed.

There is provided a switch mode power supply apparatus (200) for receiving an input supply voltage (V1) from an input supply source (20) and generating a corresponding main regulated output supply voltage (V2) and at least one subsidiary output supply voltage (V4). The apparatus (200) includes: (a) an inductive structure (TR₁) having a terminal for providing a secondary output (NS 1); (b) a switching structure (SW1) coupled between the input supply source (20) and the inductive structure (TR1) for applying current to the inductive structure (TR,) in a switched manner, (c) a main rectifying structure (D, C1) for receiving the secondary output (NS2) and generating the main regulated output supply voltage (V2) therefrom; (d) a feedback structure (AMP,) for comparing the main regulated output supply voltage (V2) with at least one reference (30) to adjust operation of the switching structure (SW) so as to maintain the main output supply voltage (V₂) in regulation; and (e) a subsidiary rectifying structure (210) comprising a voltage multiplier comprising a capacitor (C3) coupled to the terminal of the inductive structure (TR,) so as to receive signals therefrom which are subject to regulation by the feedback structure (AMP,) for generating the at least one subsidiary output voltage (V4).

A wind turbine having a rotor, a generator driven by the rotor, a converter, a control device having an input for a control signal for reactive power output and a controller for the converter, the controller determining a reactive power target value for the wind turbine and correcting the output reactive power in dependence on the voltage present at the wind turbine, and an additional module for the controller having separate small and large signal paths and interacting with the controller such that the small signal path has an additional storage element in comparison with the large signal path, which additional storage element stores state values of the small signal path for the past. Thus, small voltage changes can be reacted to more slowly and while taking into account past values, whereas large changes can be reacted to quickly, in particular in the event of a network short circuit.

The invention discloses an inspection robot based on an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles, the inspection robot comprises an unmanned aerial vehicle body and a charging base, the charging base is arranged at the bottom of the unmanned aerial vehicle body, and flight frames are fixedly mounted at the front and rear ends of the two sides of the unmanned aerial vehicle body through clamping mechanisms; protective nets are arranged at the top and the bottom in the flight frames, a groove is formed in the bottom of the unmanned aerial vehicle body, an inspection mechanism is arranged in the groove, a photovoltaic panel is fixedly installed at the top of the unmanned aerial vehicle body, and heat dissipation assemblies are fixedly installed on the two sides of the top in the unmanned aerial vehicle body; heat dissipation holes are formed in the lower ends of the two sides of the unmanned aerial vehicle body, the heat dissipation holes are obliquely formed towards the outer side, and separation nets are arranged in the heat dissipation holes; the robot is convenient to use, long in service life, convenient and easy to charge and maintain, high in practicability, wide in application prospect and worthy of application and popularization.

The invention discloses a dual-segment lifting type conveying mechanism which comprises a conveying rail and two lifting mechanisms below the conveying rail. The two lifting mechanisms respectively comprise a base, two supporting feet and two driving devices. The bottom ends of the two supporting feet of each lifting mechanism are respectively hinged to one base, the top end of one supporting foot of each lifting mechanism is hinged to the bottom face of the conveying rail, and the top end of the other supporting foot of each lifting mechanism can be horizontally in sliding connection with the bottom face of the conveying rail. The two driving devices of each lifting mechanism are respectively connected between the upper portions of the two supporting feet of each lifting mechanism, the top end of the other supporting foot of each lifting mechanism horizontally slides on the bottom face of the conveying rail through the driving devices, and the conveying rail is made to ascend or descend. The dual-segment lifting aim is achieved through the two lifting mechanisms, the structure is simple, operation is convenient, and adjusting stability is high.

The present invention provides one kind of mold regulator of powder molding machine, and belongs to the field of mechanical technology. The mold regulator set near the mold includes one mold seat, one material storing unit connected to the mold seat and with material hole, and one material discharging unit comprising one circular core rod and one cylindrical sleeve, and one regulating unit around the middle part of the core rod. The mold regulator has the advantages of simple operation, easy regulation and high stability.

The invention discloses a fixing device for hardware part production and processing. The device comprises a base, a footstock, three fixing mechanisms, a fine adjustment mechanism and auxiliary mechanisms, wherein the footstock is arranged above the base; each fixing mechanism comprises an upper fixing device and a lower support mechanism; the upper fixing devices are fixedly connected with the footstock; the lower support mechanisms are arranged at the top of the base; the three fixing mechanism are equidistantly arranged on the base and the footstock; the base is connected with the footstockthrough the fine adjustment mechanism; and the auxiliary mechanisms are symmetrically arranged at two sides of the fine adjustment mechanism. The fixing device for hardware part production and processing is capable of fixing hardware parts with different shapes according to machining demands, and fixing and processing a plurality of hardware parts with different styles, so that the time is savedand the efficiency is improved.

The invention relates to an AGC (automatic gain control) realization method suitable for a wireless sensor network. The whole AGC realization method employs a straight line fitting method and a table look-up method. The AGC realization method employs three segments of adjusting methods: a first segment is roughest adjustment, whether a signal is overloaded or not is determined, an adjusting speed is highest, and adjusting precision is lowest; a second segment is rougher adjustment, the signal is adjusted to a comparatively suitable scope, an adjusting speed is faster, and adjusting precision is higher; a third segment is fine adjustment, an adjusting speed is slow, adjusting precision is high, information is adjusted to be constant basically, only the first segment of adjustment is ended that the second segment of adjustment can be entered into, and only the second segment of adjustment is ended that the third segment of adjustment can be entered into. The method is adapted to application of an orthogonal frequency division multiplexing mode or a direct sequence spread spectrum communication mode under a burst mode communication application environment. The method has the advantages of low resource consumption, a fast adjusting speed and high stability, and is suitable for an application scene of the wireless sensor network.

The invention concerns a device comprising a regulating valve (6) and a safety valve (7) connected in series in a fluid channel of the body of the device (1). A regulating valve (14) is driven by a mobile magnetic core (18) with a longitudinal displacement capacity by the sliding of an axial tube (24) in an axial housing (26) of an axial core (16) integral with the regulating valve (14). A safety valve (8) is connected to a blind axial tube (9) wherein slides the mobile magnetic core (18). The blind axial tube (9) slides in the tube of a field coil (20), and the mobile magnetic core (18) is located opposite a driving magnetic core (19) biased by a linear actuator (21). The powering of the field coil (20) couples the magnetic cores (18, 19) to move the valves through the linear actuator (21). The interruption of the power supply to the field coil (20) disconnects the magnetic cores (18, 19), and the valves (8, 14) are closed independently of each other under the action of return springs (13, 17).

The invention relates to the technical field of FAC mirror adjustment, in particular to an FAC mirror adjusting device and method. The adjusting device comprises a base; an adjusting base is arrangedat the upper end of the base; a two-dimensional translation table is arranged on the outer side of the adjusting base; a pneumatic push rod is arranged on the two-dimensional translation table; a pulse motor adjusting frame is arranged at the upper end of the two-dimensional translation table; a pulse motor is arranged on the pulse motor adjusting frame; a material guide plate is arranged on the upper end surface of the adjusting base; piezoelectric ceramic is arranged at the bottom end of the material guide plate; a BAR strip array to be adjusted is arranged on the upper end face of the material guide plate; an infrared position sensor is arranged on the material guide plate; an FAC material box is arranged at the upper end of the material guide plate; a force arm rod is connected betweenthe pulse motor adjusting frame and the material guide plate; and an FAC fixing clamp is arranged on the force arm rod. According to the FAC mirror adjusting device, through cooperative use of the adjusting mechanism and the clamping mechanism, the FAC mirror can be rapidly adjusted, the adjusting stability of the FAC mirror is high, and the adjusting work efficiency and the adjusting accuracy ofthe FAC mirror are improved.

The invention relates to the field of liquid crystal display screens, and particularly discloses a combined liquid crystal display screen convenient to disassemble and assemble. The connection limiting assembly is connected with the base; the adjusting device is connected with the connecting limiting assembly; the adjusting device comprises a transmission assembly, a connecting limiting assembly, a first adjusting assembly and a second adjusting assembly, the linkage assembly is rotationally connected with the transmission assembly and used for being matched with the transmission assembly to complete movement adjustment of the display screen; according to the device, linkage adjustment of the multiple sets of display screen bodies can be achieved through cooperation of the transmission assembly and the linkage assembly, so that combined display among the multiple screen sets is completed, the display range is further expanded, connection and installation are convenient and fast, storage is convenient, and the display effect is good. And meanwhile, the device is provided with a connecting limiting assembly, and the adjusting stability is further improved.

A hydraulic supply arrangement in an automatic gearbox of a vehicle, having a primary hydraulic circuit (I) for providing a supply to gearbox components, having a secondary hydraulic circuit (II) for lubricating and cooling gearbox components, and having at least one pump (P) for generating a delivery volume flow in the hydraulic circuits (I, II) is proposed, wherein a detection device (E) is provided for detecting the present hydraulic medium volume flow in the secondary hydraulic circuit (II) for the purposes of adjustment of a required delivery volume flow of the pump (P). Also proposed is a method for controlling a pump of a hydraulic supply arrangement in an automatic gearbox of a vehicle, wherein the respectively present hydraulic medium volume flow in a secondary hydraulic circuit (II) for lubricating and cooling gearbox components is detected, wherein a volume flow demand is determined from a characteristic map relating to the present working range of the automatic gearbox, and wherein the delivery volume flow of the pump (P) is controlled in a manner dependent on the determined volume flow demand.

The invention provides a spray head regulation support device, and relates to a support frame, in particular to the spray head regulation support device with the advantages that the structure is simple, and the spray head regulation stability is high. The spray head regulation support device comprises a side plate, a slide block, a first connecting rod, a second connecting rod, a third connectingrod and a linear driving mechanism, wherein one side of the side plate is fixedly arranged on a wall; the other side of the side plate is provided with an arc-shaped clamp groove matched with the slide block; one side of the slide block is clamped in the arc-shaped clamp groove; the other side of the slide block extends out from the interior of the arc-shaped clamp groove; one end of the first connecting rod is hinged to the side plate; the other end of the first connecting rod is hinged onto the slide block; one end of the second connecting rod is hinged to the side, near the slide block, onthe first connecting rod; the other end of the second connecting rod is hinged to one end of the third connecting rod which is transversely arranged; the other end of the third connecting rod is hinged to a telescopic rod of the linear driving mechanism; and the position, near the middle part, of the third connecting rod is hinged to the slide block. The spray head regulation support device has the characteristics of the compact structure, high spray head regulation stability and the like.

In order to provide a device (15) for regulating a high-voltage direct-current transmission system, comprising at least one series connection (3) made of valve groups (4), each having controllable power semiconductors, wherein the device (15) has at least one current sensor (23, 24) for detecting a valve group current IdHV, IdN flowing across the series connection (3) and at least one current regulator (16), which is connected at least to one current sensor and is equipped to adjust the valve group current IdHV, IdN by means of control signals, wherein said device provides low control delay and increased regulating stability, according to the invention for each valve group (4) a current regulator (16) is provided, which for the control of the power semiconductors of the valve group (4) associated with said regulator is connected to said semiconductors, wherein each current regulator (16) of the series connection (3) is connected to a compensating unit (25), which is equipped to adjustthe control signals of the current regulators (16) connected thereto.

The invention relates to an installing and regulating device of an optical element, system or instrument, in particular to a double-precision optical regulation transmission device. The installing andregulating device comprises a coarse thread screw nut fixed on an optical regulating frame and a coarse thread screw rod connected through screw threads; the coarse thread screw rod is provided witha center hole in the axial direction; a ball head polish rod with a ball head at one end is arranged in the center hole; the center hole forms a cavity through expansion at the other end of the ball head; a press spring arranged outside the ball head polish rod in a penetrating way, a slide block connected with the ball head polish rod and a fine thread screw nut are sequentially arranged in the cavity; the fine thread screw nut is connected with a fine thread screw rod with one ball-shaped end through screw threads; the ball head of the fine thread screw rod is connected with the slide block;the other end is concentric with the regulation handle is fixed on the regulating handle; a position limiting post is fixedly arranged on the end surface of one end, near the regulating handle, of the coarse thread screw rod; a transmission post is fixedly arranged on the end surface, near the coarse thread screw rod, of the regulating handle. The installing and regulating device has the advantages that the coarse regulation and fine regulation double-precision regulation function can be realized; the higher regulation efficiency is improved; the light spot jumping in the regulation process is small; the light beams can be easily aligned.

The invention discloses an electric cabinet with a height adjustment function. An electric cabinet body is arranged in a base case, wherein support blocks are fixedly arranged on the inner bottom surface of the base case; an adjusting through hole in the vertical direction is formed in each support block; the bottom end of an adjusting screw is inserted into each formed adjusting through hole; each adjusting screw is locked and fixed to the corresponding support block through an adjusting nut; the top end of each adjusting screw is in threaded screw connection with a fixed nut; the fixed nutsare fixedly arranged on the bottom surface of the electric cabinet body; a U-shaped mounting plate is arranged on the inner bottom surface of a top plate of the electric cabinet body in a fixed connection manner; an electric motor is fixedly arranged in a groove of the U-shaped mounting plate; a turbulence wind plate is arranged at a shaft end of the electric motor in a fixed connection manner; and a cooling opening is formed in a bottom plate of the electric cabinet body. By adopting the technical scheme, more circulating air cavities can be obtained in a height adjustment cavity between theelectric cabinet body and the base case and the electric cabinet has better heat dissipation performance.

The invention discloses a support seat adjusting. The support seat adjusting method comprises the steps of acquiring a target adjusting angle of a top cover; and 2, adjusting a first adjusting assembly and a second adjusting assembly according to the target adjusting angle so as to adjust the orientation of the top cover to the target adjusting angle. The relative position between the top cover and a base is changed through the first adjusting assembly and the second adjusting assembly, namely the adjustment is achieved by two supporting points of the first adjusting assembly and the second adjusting assembly, so that the angle of the top cover of a support seat is changed. Compared with a three-point adjusting mode, the adjustment parameters are reduced, so that the adjustment and the structural stability are further improved; and with the two-point adjustment, only two variables need to be considered, and only two adjusting points need to be operated, therefore, the requirement on adjustment conditions is lower, and the feasibility and the efficiency are effectively improved.

The invention discloses an intelligent ecological building unit structure based on environmental protection. The structure comprises a top plate, a fixing box and an ecological box, wherein an inlet is fixed inside the top plate, the fixing box is installed in the middle of the bottom end of the top plate, a hinge piece is arranged at the bottom end of an adjusting block, a supporting rod is hinged to the interior of the hinge piece, an adjusting bolt is installed at one end of a supporting rod, and adjusting holes are fixed inside the supporting rod. According to the structure, connecting columns are fixed to the two sides of the fixing box, buffer blocks are installed inside the connecting columns, reset springs inside the connecting columns deform and stretch out and draw back after theconnecting columns are arranged, an included angle can be changed, and after the adjusting bolt is rotated, the adjusting bolt is fixed to a proper adjusting hole, so that overall length change is completed, and when the environment is different, different adjustments can be carried out on the structure, so that the structure can be fixed and stabilized more firmly when erected, and the overall adjusting and stabilizing capacity is improved.

The invention provides an illumination lamp with an adjustable illumination range, which comprises a base, a support column is connected with the base, a connecting column is arranged on the support column, a illumination lamp is connected to the connecting column, a photo fixing component is arranged between the support column and the connecting column, the connecting column is fixedly sleeved with a connecting seat, the connecting seat is connected with an illumination range adjusting component through a plurality of arc-shaped connecting rods. The illumination range adjusting component canenlarge or shrink the covering diameter of a lamp shade, so as to enlarge or shrink the illumination range of the lamp, also has the effect of providing an accommodating space, the adjustment stability is high and the fixing strength is good, The photo fixing component enables the photos to be displayed in a plurality of forms, the photos can rotate, and meanwhile, the photo frame can display transverse or longitudinal photos and the display effect of the photos is improved.

The invention belongs to the field of constructional engineering, and particularly relates to an environment-friendly vibrating screen for constructional engineering and an application method thereof. The environment-friendly vibrating screen for constructional engineering comprises a sieve plate, wherein baffles are evenly arranged at the top of the sieve plate; the top of the sieve plate is fixedly connected with the bottoms of the baffles; vibration mechanisms are symmetrically arranged at the left end of the sieve plate; the outer surfaces of the vibration mechanisms are movably connected with the inner wall of the sieve plate; auxiliary mechanisms are symmetrically arranged at the right end of the sieve plate; the right end of the sieve plate is movably connected with the outer surfaces of the auxiliary mechanisms; a supporting plate is arranged at the bottoms of the auxiliary mechanisms; the bottoms of the auxiliary mechanisms are fixedly connected with the top of the supporting plate; supporting legs are evenly arranged at the bottom of the supporting plate; the bottom of the supporting plate is fixedly connected with the tops of the supporting legs; a power mechanism is arranged at the top of the left end of the supporting plate; the bottom of the power mechanism is movably connected with the top of the supporting plate; a filter plate is arranged at the bottom of the sieve plate; and the bottom of the sieve plate is movably connected with the top of the filter plate.