65results about How to "High adjustment sensitivity" patented technology

The invention relates to the technical field of information, in particular to an illumination lamp based on a microwave radar gesture recognition technology and a control method of the illumination lamp. The illumination lamp comprises a signal transceiving module, a gesture recognition module and a control module, and the signal transceiving module is used for periodically transmitting a microwave radar signal to a preset range and receiving a radar echo signal reflected by the hand; the gesture recognition module is connected with the signal transceiving module and is used for recognizing agesture motion and the gesture motion change of the hand according to the radar echo signal and generating a recognition signal corresponding to the gesture motion and the gesture motion change; the control module is connected with the gesture recognition module and is used for forming a control signal which corresponds to the recognition signal and is used for controlling illumination current according to the recognition signal generated by the gesture recognition module to adjust on and off and the brightness state of the illumination lamp. The illumination lamp is high in sensitivity, convenient to control and low in cost.

The invention discloses a water adding and dispersing regulating method for a smoked sheet damping machine of a high-inertia system. The method comprises the steps of: 1, adding water in advance to estimate, i.e. performing water adding control on tobacco leaves at the first blanking according to a water adding estimation function through a system, and detecting whether the tobacco leaves are output from a tobacco leaf damping barrel or not, so as to judge the first blanking is finished or not; 2, discrete sampling: after entering a normal production state, sampling water from an outlet at fixed time, and recording the sampling value F(t) of the water from the outlet every 10 seconds; and 3, trend comparing and regulating: during sampling, comparing a current water value x with the recorded sampling value F(t) of the water from the outlet in real time, and thus determining the changing trend of the current water. After the method is adopted, the system can obtain certain foreseeability on water variation according to the changing trend of the current water, so that the adjustment sensitivity of the system is increased, a continuous oscillating outlet water condition which is caused by a traditional regulating method is effective reduced, and the high inertia and large hysteresis quality of the system can be overcome to a certain degree.

A lighting device for a vehicle includes multiple light emitting devices. Each light emitting device is constructed of a light emitting diode as a light source and a light guide lens for guiding light emitted from the light emitting diode. The light emitting devices are formed in convex light emitting devices and fan-shaped light emitting devices. The convex devices and the fan-shaped devices have different light distribution characteristics. Therefore, light distribution areas and intensity of the lighting device are more flexibly adjusted than other lighting devices using light emitting diodes as light source.

A high-temp mixing valve is composed of valve rod and valve core, and features that the said valve core has the cavity-type parabolic shape. Its advantages include high refractory performance, easily regulating the flow of high-temp gas, simple structure, high cooling efficiency and high regulation sensitivity.

The invention discloses a three-sleeve elastic self-sealing safety valve. The three-sleeve elastic self-sealing safety valve comprises a bonnet, a valve body, a valve seat, a valve flap, a guiding cylinder, a sleeve, a lower cooling fin, an upper cooling fin and a valve rod; an anti-blowing sleeve positioned above the lower cooling fin is arranged on the valve rod; an annular groove is arranged on the lower end surface of the anti-blowing sleeve; a retainer ring capable of extending into the groove in a matched manner is arranged on the upper surface of the lower cooling fin; a sealing cylinder capable of extending into the inner ring of the lower cooling fin is arranged on the inner side of the lower end surface of the anti-blowing sleeve; a limit sleeve positioned under the lower cooling fin and a lock sleeve matched with the upper surface of the valve flap in a compression joint manner are arranged on the valve rod; a conical block which has a small lower part and a large upper part is arranged in the center of the lower surface of the valve flap; an annular pressure bearing slot is formed in the lower surface of the valve flap; an elastic sealing ring positioned on the outer side of the pressure bearing slot is arranged on the lower surface of the valve flap. The three-sleeve elastic self-sealing safety valve has the advantages that the design is reasonable, the sealing performance is high, the lifting guiding and vertical stability are high, the adjustment sensitivity is high, the performance and stability of opening, setting and return actions of the valve are good, and the valve is particularly applicable to harsh working conditions such as high temperature and high pressure conditions.

The invention discloses a heat pump drying device and a using method thereof. The heat pump drying device comprises a heat pump circulating sub system and a drying circulating sub system; a compressor, a heat adjusting device, a condenser, a throttling part, an evaporator and a pre-cooling heat exchanger are connected through pipelines to form the heat pump circulating sub system; the drying circulating sub system comprises a drying chamber, air passages and a drying draught fan; the drying draught fan, the pre-cooling heat exchanger, the evaporator and the condenser are mounted in the air passages, or air inlets and air outlets of the drying draught fan, the pre-cooling heat exchanger, the evaporator and the condenser are connected with the front and rear air passages; and a temperature sensor and a humidity sensor are mounted in the drying chamber or the air passage adjacent to the drying chamber. According to the heat pump drying device and the using method thereof, the problems that as for an existing drying device, functions are few, the drying application range is small, energy consumption is large, damage is large, and emission is large are solved, the functional multiformity and efficiency of the drying system are achieved, the application range is widened, damage of dried objects and emitting of waste gas are reduced, and the flexibility and reliability of the heat pump system are improved.

The invention relates to plane-revolution reversible glasses. The plane-revolution reversible glasses comprise a handle and a lens frame, the handle is internally provided with a transmission system and a control system, the lens frame is connected with the transmission system and arranged at the upper end of the handle, the lens frame and the axial surface of the handle are in parallel, the control system controls the transmission system to drive the lens frame to rotate in the plane, the lens frame is composed of four lens frame bodies which are provided with lenses, the centers of the fourlens frame bodies are located on the same circumference taking the center of the lens frame as the center, and plane revolution means circular motion of the four lenses around the center of the lens frame. By adopting the plane-revolution reversible glasses, to a certain degree, it is guaranteed that the distances between eyes and the lenses and the distances between sighting targets and the eyesare fixed, so that operation time for completing a lens reversal process is shortened, and the precision of testing and training is improved; furthermore, the plane-revolution reversible glasses are in combination with electronic recording of regulation periods, so that not only are errors brought by manual reversal and timekeeping reduced, but also the number of the regulation periods per unit time is counted more precisely, and the accuracy of sensitivity regulation testing is greatly improved.

The invention belongs to the technical field of control devices for waterways of electric water heaters, and particularly relates to a rotation type waterway three-way switching device which comprises a valve body and a rotatable switching mechanism. The valve body can be connected with a water inlet / outlet pipe, and comprises a water outlet area and a water inlet area. An air outlet, which can be connected with a water outlet pipe, is formed in the side wall of the water outlet area. Water inlet passages are arranged in the water inlet area, and comprise water inlet end ports and water outlet end ports. The water inlet end ports are formed in the side wall of the water inlet area. The water outlet end ports communicate with the cavity of the water outlet area. The water inlet passages comprise a first water inlet passage and a second water inlet passage. The first water inlet end port of the first water inlet passage is formed under the water outlet. A right angle is formed between the first water inlet end port and the second water inlet end port of the second water inlet passage. The first water inlet passage and the second water inlet passage are straight passages. The rotation type waterway three-way switching device, provided by the invention, is simple in structure, smooth in water flow, and high in sealing performance.

The control valve is applied to a shock absorber, which comprises: a pressure tube (10); a piston (14) dividing the pressure tube (10) in compression and traction chambers (CC, CT) communicating with each other through the piston (14); a hydraulic fluid reservoir (20) provided with a selective bidirectional fluid communication with the compressor chamber (CC). The control valve (VC) communicates the traction chamber (CT) with the reservoir (20) and comprises a tubular body (40) provided with at least one radial passage (41) opened to the interior of the tubular body (40) and to the reservoir (20); a shutter pin (60) to be axially displaced within the tubular body (40), between a closing position and different open positions of the control valve (VC) for communicating the traction chamber (CT) with the reservoir (20); and an actuator means (A) for axially displace the shutter pin within the tubular body (40).

The invention discloses a water flow adjustment device. The water flow adjustment device comprises a valve body, a valve element and an elastic piece, a water inlet and a water outlet are formed in the valve body, a through hole for water flow passing is formed in the valve element, a temperature sensing body capable of expanding or contracting according to the changing of the temperature is arranged in the valve element, the elastic piece is arranged between the valve element and the inner wall of the valve body, the valve element can perform axial motion under the action of combined action of the temperature sensing body and the elastic piece, and thus, a matching communicating state of the through hole, the water inlet and the water outlet is changed. Meanwhile, the invention further discloses a water heater provided with the water flow adjustment device. The water flow adjustment device and the water heater have the following advantages that 1, the water flow adjustment device automatically adjusts the water outlet amount according to the water temperature, the sensitivity of water flow adjustment is high; and 2, the water heater automatically adjusts the water outlet amount according to the adjustment device, meanwhile, load allowance is used for heating the water flow, double pipes enable the hot water outlet response speed of the water heater to be higher, a thermal equilibrium state is rapidly reached, and the water usage experience of a user is improved.

The invention belongs to the technical field of lighting street lamps, and particularly relates to an environment-friendly LED street lamp which comprises a lamp post, a storage battery and a base. The lamp post is a cylindrical cavity structure body; the bottom end of the lamp post is fixedly connected with a connecting plate; mounting holes are uniformly distributedin the connecting plate; the connecting plate is used for fixedly mounting the lamp post on the ground through bolts; the end, away from the connecting plate, of the lamp post is fixedly connected with a base, wherein the base is a square cavity type structural body; an opening is formed in the side, away from the lamp post, of the base inner cavity; and a fixing plate is fixedly connected to the side, away from the lamp post, of the base. By arranging the evaporation tank, the telescopic rod and the second heating plate, the illumination intensity borne by the second heating plate is different by utilizing the angle between the sun and the uniformly arranged second heating plate, so that the position of the photovoltaic plate can be automatically adjusted continuously according to the sunlight irradiation angle, the utilization efficiency of the photovoltaic plate on solar energy is higher, and the power generation efficiency of the photovoltaic panel is higher.

The invention discloses an adjustment assembly for shock absorbing damping. The adjustment assembly for the shock absorbing damping comprises an adjusting screw and an adjusting cavity, wherein the adjusting cavity is communicated with a damping cavity through an adjusting channel; the adjusting screw drives a conical valve core to adjust the circulation area of the adjustment channel. By adopting a structure capable of adjusting damping force externally, the key performance parameter, namely the damping force, can be adjusted according to the requirements of using environment, such as different road conditions, when the adjustment assembly for the shock absorbing damping is used; the adjustment assembly for the shock absorbing damping has a dynamic application effect, so that the comfort degree and the reliability of the overall vehicle are improved effectively; the adaptability of the overall vehicle to different road conditions is improved; the driving habits of different occupants are met.

The invention discloses a discrete space camera secondary lens precision adjusting and fixing method which includes the following steps: connecting a general 5D adjusting mechanism with a secondary lens structure; getting the 3D translation and 2D tilt needed for the adjustment of the secondary lens; using the general 5D adjusting mechanism to adjust the secondary lens; using a filler gauge to getthe gap thickness d1; making a gasket with the gap thickness d1 as a center value; inserting the thin end of the gasket into the gap, and taking the contact position of the gasket and the secondary lens structure as a marking position; with the marking position of the gasket as the center, cutting off a plurality of secondary lens gaskets at a certain interval from the thin end and the thick endrespectively; and selecting a qualified gasket from the secondary lens gaskets, and installing the gasket in the gap between the secondary lens structure and the end face of a lens cone. The problem on 5D precision adjustment of the secondary lens of a space camera and fixation of the secondary lens after adjustment is solved, and the position of the fixed secondary lens can be kept highly stablebefore and after vibration test of the space camera.

The invention provides an adjustable surface enhanced Raman scattering substrate, a magnetostriction material is arranged on an elastic layer, and a precious metal micro-nano structure is arranged onthe magnetostriction material. Under the action of a magnetic field, the magnetostrictive material expands or contracts. Therefore, the morphology of the precious metal micro-nano structure or the distance between the precious metal micro-nano structures is changed; according to the surface enhanced Raman scattering device, the noble metal micro-nano structure is adopted to change the natural vibration frequency of the noble metal micro-nano structure, so that the natural vibration frequency is matched with the vibration frequency of incident light, a stronger local electric field is generatednear the noble metal micro-nano structure, and finally, the strength of surface enhanced Raman scattering signals is enhanced. Due to the fact that the vibration frequency of the precious metal micro-nano structure is very sensitive to the morphology or spacing of the precious metal micro-nano structure, the vibration frequency of the precious metal micro-nano structure can be well regulated andcontrolled by applying the magnetostrictive material, and the magnetostrictive material has the advantage of being high in adjustment sensitivity and has a good application prospect in the aspect of surface enhanced Raman scattering substrate preparation.

The invention provides a valve head, a parallel error automatic compensation device and an electron microscope. The valve head comprises a movable member and a movable member supporting means. The movable member is provided with a second sealing plane matched with a first sealing plane of a fixed member. One side of the movable member, back on to the fixed member, is provided with a first accommodating groove. The movable member supporting means is provided with a spherical surface adapted to be embedded in the first accommodating groove. The spherical surface is in point contact with the groove bottom holding point of the first accommodating groove. The spherical surface is in line contact with the groove wall of the first accommodating groove. The spherical surface is used for supporting the movable member to float relative to the fixed member in a direction back on to the fixed member. According to the technical scheme of the invention, the valve head is low in machining difficulty and high in adjustment sensitivity, wherein the parallelism error of two planes in each direction can be eliminated. Therefore, the two sealing planes can be adequately fitted with each other. The invention also provides a parallel error automatic compensation device provided with the above valve head, and an electron microscope provided with the compensation device and used for ensuring the sealing repeatability.

The invention discloses a damping-force-variable shock absorption assembly. The damping-force-variable shock absorption assembly comprises a shock absorption spring and a damper assembly. The damper assembly comprises a damping cylinder and a piston assembly. The recovery damping force of the damper assembly can be adjusted, and a recovery damping force adjustment portion is exposed out of a shock absorber. The structure that the recovery damping force can be externally adjusted is adopted, the key performance parameter, namely, the recovery damping force, can be adjusted according to requirements for use environments such as different road conditions when the damping-force-variable shock absorption assembly is used, the dynamic application effect is achieved, the comfort and reliability of a whole vehicle are effectively improved, the adaptability of the whole vehicle to different road conditions is improved, and driving habits of different drivers are met.

The invention relates to the technical field of coking, in particular to a coke oven carbonization chamber pressure stabilizing system and method. The system comprises a bridge pipe, a flow guide device, an ammonia water spraying device, a water seal valve and a pressure measuring device, the bridge pipe is connected with a gas collecting pipe, and the water seal valve is installed at the joint of the bridge pipe and the gas collecting pipe. The flow guide device is installed on the bridge pipe and comprises a motor, a flow guide impeller and a shaft rod, one end of the shaft rod is connected with the motor, and the other end of the shaft rod is connected with the flow guide impeller which is located in the bridge pipe. The ammonia water spraying device is mounted on the bridge pipe and communicated with the interior of the bridge pipe, and a probe of the pressure measuring device extends into the bridge pipe; and a motor of the flow guide device and the pressure measuring device are electrically connected with a control system. The pressure of the carbonization chamber is controlled by combining the flow guide device and the water seal valve, the flowing speed of raw gas in the bridge pipe is changed by adjusting the rotating speed of the flow guide impeller extending into the bridge pipe, and the raw gas is guided into the gas collecting pipe, so that the pressure of each carbonization chamber is stabilized.

The invention provides a gas stove and a control method thereof, and relates to the technical field of stoves. The gas stove comprises a combustor, a control switch and a booster valve which are in communication through a gas conveying pipeline; the control switch is used for controlling the plugging state of the gas conveying pipeline, and the booster valve is used for increasing the flow of gasflowing through the gas conveying pipeline; the gas stove further comprises a processor and a detection device, wherein the detection device is used for detecting factors related to combustion of thecombustor, and the detection device, the control switch and the booster valve are all connected to the processor; and the control method is used for controlling the gas stove. According to the gas stove, through the arrangement of the booster valve, the gas flow in the gas conveying pipeline can be increased, the fire outlet flame of the combustor can be correspondingly increased, stir frying withhigh flame requirements of a user are met, the flame combustion adjusting range of the combustor is enlarged, the practicability of the gas stove is improved, and the user experience is improved.

The invention relates to the technical field of tunnel kiln sintering, and provides a tunnel kiln center ventilation control method. The method includes a detection unit and a ventilation control unit. A temperature detection unit detects temperature signals at respective temperature detection points. The temperature signals undergo filtering, amplification, encoding, transmission, reception at areceiving end, decoding and software analysis and a result is output. The ventilation control unit is in-timely regulated for ventilation control. According to the invention, the method herein can regulate the temperature in the process of sintering in the tunnel kiln in an in-time and accurate manner, has high accuracy and flexibility, and can greatly increase the quality of sintering in the tunnel kiln.

The invention belongs to the field of an industrial water supply system, and relates to a self flow pressure difference regulating water supply system. The self flow pressure difference regulating water supply system comprises a high-position water pool, a low-position water pool, a water supply pipeline and water use equipment, wherein the high-position water pool is sequentially connected with the water use equipment and the low-position water pool through the water supply pipeline; and a low-position water pool flat plate weir is arranged in the low-position water pool, so that a low-position water pool overflow well is formed in the low-position water pool. When the self flow pressure difference regulating water supply system is used, the flow rate under the work conditions of different pressure differences can be continuously provided for the water use equipment without the additional addition of pressure generating equipment (such as a water pump). Compared with a common use water pump variable-frequency water supply system, the self flow pressure difference regulating water supply system has the advantages that the flow rate regulation range is wide; the hydraulic control is simple; and the operation is stable.

The balance part sealing structure for bi-directional thermal expansion valve belongs to the field of throttle device technology for steam compressing heat pump system. The balance part sealing structure consists of mainly the upper valve body with diaphragm box and gas returning channel, inlet gas returning pipe and outlet gas returning pipe on two ends of the gas returning channel, liquid inlet hole and liquid outlet hole in the lower part of the valve body, valve core between the liquid inlet hole and the liquid outlet hole, balance spring with regulating screw, transfer part between the diaphragm box and the valve core, centering steel ball, valve needle, positioning block with sealing rubber ring, sealing nut, etc. The present invention has reasonable design, simple structure, bi-directional operation, excellent sealing performance, good temperature sensing performance and high regulating sensitivity.

The invention discloses an elevator damping device, which comprises a buffer chamber arranged at the bottom of the elevator car, a buffer spring body is arranged at each of the four corners of the buffer chamber, an oil inlet pipe is connected to the buffer chamber, and an oil inlet pipe is arranged on the buffer chamber. The pressure regulating valve, the oil inlet pipe is connected to the oil storage tank through the oil pump, the buffer spring body is provided with a cavity, the cavity is connected to the oil storage tank through the return pipe, and the return pipe is provided with a throttle valve; it also includes a pressure regulating valve respectively , oil pump and throttle valve for communication connection controller. The invention also discloses a damping method of the above-mentioned elevator damping device, which sets two independent active correction processes. The invention can improve the deficiencies of the prior art and improve the damping effect of the elevator.

The invention relates to an oil valve special for an alcohol power novel environment-friendly fuel stove. The oil valve is composed of an oil valve and a valve element matched with the valve body, anoil inlet is formed in the end part of the valve body, and an oil outlet is further formed in the valve body; the valve element extends into the valve body through a valve cover arranged on the valvebody, and a limiting sleeve and a sealing ring are arranged between the valve cover and the valve element; and a handle is arranged at the end part of the valve element. The oil valve is suitable forthe alcohol-power novel environment-friendly fuel stove, and is also suitable for other stoves using liquid and gaseous fuel.

The invention discloses a load bearing type mechanical arm, which comprises a hydraulic driving pump, wherein the hydraulic driving pump is connected with a directional mechanism; the directional mechanism is connected with a tail end executer, and comprises a main hydraulic flow passage; the main hydraulic flow passage is connected with at least two branch flow passages and a pressure leakage bypass; a pressure regulating valve is arranged in each branch flow passage; the branch flow passage comprises a first flow section, a second flow section and a third flow section in sequential and serial connection arrangement from the liquid inlet end to the liquid outlet end; the inner wall of the first flow passage is provided with a screw thread groove; the second flow section is in an ellipsoid shape; a pressure regulating valve is arranged in the second flow section; a third flow passage comprises a plurality of arc-shaped sections in tangential connection; the tangential line included angle between the inlet and the outlet of each arc-shaped section is smaller than 30 degrees; the tail end of each branch flow passage is connected with a piston rod; the piston rod is hinged to the tail end executer. The load bearing type mechanical arm has the advantages that the defects in the prior art are overcome; the driving mechanism is simplified, and the positioning capability of the mechanical arm is improved.

The invention discloses a parallel-connection dual-system frequency conversion refrigerator with an electronic expansion valve and a control mode of the parallel-connection dual-system frequency conversion refrigerator. Comprising an inverter compressor and an electronic expansion valve. An outlet of the inverter compressor is connected with the condenser, an outlet of the condenser is connected with the capillary tube, and the capillary tube is connected with the electronic expansion valve in series. The electronic expansion valve outlet is connected with the electromagnetic three-way valve first interface; a third interface of the electromagnetic three-way valve is connected with the refrigerating chamber evaporator; the electromagnetic three-way valve is connected with the freezing evaporator; the refrigeration evaporator is connected with the freezing evaporator in parallel, the air return pipe is connected with the capillary tube to form a heat regenerator, and a temperature sensor is installed at an outlet of the heat regenerator on the air return pipe. By adopting the mode that the capillary tube and the electronic expansion valve are connected in series and matched, the adjusting sensitivity of the electronic expansion valve in the refrigerator is improved while the original heat regeneration mode of the refrigerator is not changed. The control modes comprise an electronic expansion valve and variable frequency compressor coupling control mode and a variable frequency fan control mode for the system.