119results about How to "Play a compensatory role" patented technology

The invention relates to a self-adaption zero-frequency compensation circuit in a low-voltage difference linear voltage regulator. The output end of a transconductance amplifier is connected with a voltage regulation pipe by a voltage bumper, a current detection circuit is connected with the voltage bumper and the common end of the voltage regulation pipe, and the other end is connected with a variable-resistance circuit connected with the compensation end of the transconductance amplifier. In the invention, when a load is higher and current is lower, the current detection circuit can detect the load and the current and the load and the current act on the variable-resistance circuit at the moment to ensure that the resistance is enlarged, and the zero position is also relatively lower; on the contrary, when the load is reduced and the current is enlarged, the resistance value of the variable-resistance circuit is reduced, and the zero position is higher. Therefore, the self-adaption zero can change along with the change of a pole so that the compensation circuit takes the effect of compensation and effectively ensures the stable state of system operation. The compensation circuit successfully solves the problem of poor stability of a low-voltage difference linear voltage regulator so that a load capacitance equivalent series resistance is not really important to the influence on system stability, transient response and ripple waves.

The invention discloses a method for improving precision of stepped components in a laser spot-changing direct formation mode. The method includes the steps that a cladding test is performed firstly, the sectional width and height data of a single-track cladding layer under different technological parameters are obtained, orders of a sectional curve of the cladding layer under different aspect ratios are fitted out, and the function relationship between the orders of the sectional curve of the cladding layer under the different aspect ratios and the height and lifting capacity of the single-track cladding layer is built; then single step-shaped tracks corresponding to the same lifting capacity are built, the technological parameters of the laser spot-changing cladding single tracks are determined according to the single step-shaped tracks, and a highly-smooth cladding layer is formed in a cladding mode through laser spot-changing direct formation; after one cladding layer is completed, a spray nozzle is lifted by a layering height, new fusion tracks are formed in a cladding mode through the single step-shaped tracks, and operations circulate until manufacturing of a three-dimensional part is completed. By means of the method, the highly-smooth cladding layer is obtained, the phenomenon that the top of the cladding layer is not even and portions of small aspect ratios are prone to tension fracture is avoided, and the method improves formation precision and guarantees formation quality.

The invention is suitable for the field of processing a video and provides a method and a monitor for compensating a video image. The method comprises the steps of: obtaining primary data and primary frame rates of image data; obtaining an image refresh rate of a data terminal; generating an insert frame according to the obtained primary data and the obtained frame rates of the image data and the obtained image refresh rate of the data terminal; and carrying out synthesis processing for the generated insert frame and a primary image, and playing a synthesis frame obtained after the synthesis processing. In the embodiment of the invention, the image data of the insert frame are calculated according to an obtained motion vector of the primary data by processing the primary date without directly adopting the primary data of the image, thus the image data of the insert frame can reflect a motion trail of an object and can play a corresponding compensation role for images under various scenes, the synthesis frame comprising the insert frame can be smoothly played, and the played image processing effect can be more ideal.

The invention provides a conversion module for a consumption signal, which comprises an excitation signal generating circuit, a detection circuit, a modulation-demodulation circuit and a pulse signal generating circuit which are integrated in a module by a thick die. In the excitation signal generating circuit, an RC (remote control) bridge-type sinusoidal wave oscillating circuit is connected with a power amplification circuit in series; a switch K 4 and a capacitor C15 are arranged on a control terminal; two alternating current excitation signals generated by the RC bridge-type sinusoidal wave oscillating circuit through the power amplification circuit follow circuits to excite two ends of a consumption sensor through a positive phase voltage and a negative phase voltage respectively, so that a modulation carrier signal is formed during the rotation process of the consumption sensor; and the modulation carrier signal is sent to the pulse signal generating circuit after filtered, detected, amplified and compared by the modulation-demodulation circuit, so that a pulse signal allowing a microprocessor to recognize is generated. The conversion module for the consumption signal has small size, low power consumption and high reliability, overcomes the defects that PCBs (printed circuit boards) in the prior art occupy a large assembly space, and can detect fault information of the consumption sensor in a plane.

The invention relates to a cultivation model of three-row peanuts in a large ridge and intercropped corn in furrows, which is a novel scientific planting technology, changes the traditional planting method and simultaneously plants two kinds of plants with high and short stalks. The cultivation model of the three-row peanuts in the large ridge and the intercropped corn in the furrows comprises the following steps of planting peanuts in a ridge table, changing the original two ridges to one ridge, planting three rows of the peanuts in the ridge, and planting corn in the furrows. According to the cultivation model of the three-row peanuts in the large ridge and the intercropped corn in the furrows, the border effect of the corn is remarkable, and each corn is planted on the border so as to facilitate the crop rotation and the irrigation; complete stalks or high stubbles of the corn after the autumn can be reserved in the field to be utilized as wind curtains for stopping and slowing down the wind, so that the soil loss is released, meanwhile the soil organic matters are increased and the soil is fertilized; when the two kinds of plants are planted in a matching manner, the corn can keep out the wind and the cold, shade and prevent the drought for the peanuts; the root system of the corn is well developed and enjoys water and fertilizers, and after being planted in the furrows, the corn can fully absorb the rainwater in the furrows after raining and the lost fertilizer of a shallow surface layer, so that the growth of the corn is facilitated; the corn is planted in separate furrows, so that the ventilation effect is good, and the pest and disease damage is effectively prevented from occurring.

An electrically pneumatic assembling machine for assembling the U-shaped rib onto the unit plate used for the steel structure of bridge is composed of a transverse beam, a formwork module under said transverse beam, the guide sleeves fixed to said transverse beam, the guide rods in said guide sleeves and connected between formwork module and piston rod of cylinder, and the cylinders fixed to said transverse beam.

Disclosed is an ultrasonic knife head (100), wherein a centre pole (1) of the ultrasonic knife head (100) can rotate around an axis and thread-connect to a driving handle (200), a power transmission device is fixedly connected to the centre pole (1), and the power transmission device has at least one bearing surface (41); the rotating device comprises a crowding mechanism and a rotation driving mechanism, wherein the rotation driving mechanism has at least one force applying surface (51), one bearing surface (41), wherein the force applying surface (51) is a surface which is not perpendicular to the axis, and the surfaces are capable of engaging with each other, and the crowding mechanism provides a thrust pressure to press the rotation driving mechanism against the power transmission device, thereby engaging the force applying surface (51) with the bearing surface (41), and the thrust pressure is set to be the thrust pressure the rotation driving mechanism can overcome when the interaction force between the force applying surface (51) and the bearing surface (41) is greater than the predetermined value, disengaging the force applying surface (51) and the bearing surface (41). As long as the thrust pressure is set reasonably, the set torque can be delivered, and when the torque is greater than the set value, the rotation driving mechanism will overcome the thrust pressure and slip, thereby limiting the delivery of the torque and providing protection. The present invention also provides an ultrasonic knife comprising the ultrasonic knife cutting head (100).

The invention relates to a dual seal high pressure needle valve. A valve tip seal comprises a hard seal part and a soft seal part having different tapers, wherein the hard seal part is in line seal contact with the upper conical surface of a valve body seal opening, the soft seal part is in seal contact with the lower conical surface of the valve body seal opening, the valve tip and a valve stem are hitched together without revolution through a T-shaped slot. The seal structure adopts the dual seal of line hard seal and conical surface soft seal, and the hitching without revolution between the valve tip and the valve stem via the T-shaped slot. When a seal surface wears, the lower conical surface of the seal opening and the soft seal can compensate to prevent medium leakage, thereby overcoming the problems of 'running, emitting, dripping and leaking' lying in the prior single hard soft seat needle valve. The invention which has the advantages of good sealing performance and long service life is applicable to the instrument pipeline cutoff, discharging and sampling technical fields in industries like oil, chemical engineering, electric power, metallurgy, food, etc.

The invention discloses a formula of an antibacterial PE (polyethylene) plastic dustbin. The formula comprises the following components in parts by weight: 800-1200 parts of polyethylene resin, 20-50 parts of a plasticizer, 10-30 parts of a stabilizing agent, 20-40 parts of an antibacterial agent, 100-300 parts of glass fiber, 5-15 parts of an inorganic nano filler, 1-5 parts of a pigment and 10-20 parts of an antibacterial stabilizer. The antibacterial agent is added to the formula, so that the dustbin can reach a relatively good antibacterial effect; growth of bacteria is inhibited, so that the role of protecting public health can be put into play; the damages to a human body caused by the bacteria on the dustbin are reduced; and meanwhile, the antibacterial agent is relatively poor in stability in the modifying process, so that the antibacterial stabilizer needs to be added to the process of adding the antibacterial agent, and the stability of the antibacterial agent in the modifying process is improved.

The invention relates to a connecting structure for a side plate and a face plate of a drawer. The connecting structure comprises a fixed plate, a first movable seat, a second movable seat and a face plate connecting piece, wherein a screw hole, an unlocking hole, a lock tongue accommodating cavity, a sleeve and a locking mechanism are provided on the second movable seat; the locking mechanism comprises a compressed spring and a lock tongue; an opening is formed in the first end of the lock tongue accommodating cavity; the second end of the lock tongue accommodating cavity is communicated with an inner cavity of the sleeve, and the inner wall of the unlocking hole is communicated with the lock tongue accommodating cavity; the lock tongue is slidably arranged in the lock tongue accommodating cavity; a rack is arranged on the lock tongue and is positioned in the unlocking hole; the compressed spring is arranged between the lock tongue accommodating cavity and the lock tongue; the face plate connecting piece is connected with the sleeve in an insertion sleeving manner; the lock tongue extends into a lock groove so as to connect the face plate connecting piece with the second movable seat. The connecting structure is simple and reasonable, the locking mechanism has a firm locking function, unlocking is convenient and easy, and the lock tongue can stably move in or out of the lock groove of the face plate connecting piece, so that the face plate of the drawer and the side plate of the drawer can be quickly assembled and disassembled, and the practicality is high.

The invention provides a device for epitaxial growth of silicon carbide. The cylindrical device is sequentially provided with a heating coil, a quartz wall, a graphite soft felt, a graphite support layer and a reaction cavity surrounded by the graphite support layer from outside to inside, wherein a gas inlet device and a gas outlet device are respectively arranged at two ends of the reaction cavity, a clad layer is plated on the inner wall of the graphite support layer, L-shaped gas supplementing tubes which are arranged side by side are parallel to the cylindrical device in axial direction, pass through the graphite soft felt and vertically pass through the graphite support layer, and clad layers are plated on the inner walls of the gas supplementing tubes. The gas provided by the gas supplementing tubes of the device compensates the lower part of the gas flow, so that the concentrations of the upper part and the lower part of the gas flow are generally the same, and the uniformity of the thickness of an epitaxial layer of silicon carbide is improved; gas phase nucleation in gas is inhibited, the growth rate is improved, and ultra thick silicon carbide epitaxial wafers with uniform height can be rapidly prepared. The device has a simple structure, is simple to manufacture and implement, has low manufacture cost, is easy to install and operate, and is applicable to industrial production; the epitaxial growth rate is high, and the quality of silicon carbide is good.

The invention discloses an electric arc additive forming method for an aluminum alloy structural member. By welding a plurality of layers of aluminum alloy materials onto an aluminum alloy forming part, the method includes the following steps that (1) predetermined values of the working current, wire feeding speed, welded joint width and welding wire diameter are set; (2) the (n+1)th layer of welding is executed on the forming part, (n+1) layers of welding include r weld beads, and the directions of welding paths of the adjacent weld beads are opposite; (3) the (n+2)th layer of welding is completed, (n+2) layers of welding include r weld beads, and the welding path of the second layer of welding is opposite to that of the first layer of welding; and (4) the second step and the third step are executed repeatedly, (n+m) layers of welding are competed ultimately, and the aluminum alloy structural member is formed at last; wherein n is equal to 1,2,3,...,; and m is equal to 4,5,6, ....

The invention discloses a magnetic control type stabilizing device for output power of an all solid-state laser, which is characterized by comprising a magnetic control type lens translation device, a completely reflecting mirror, a laser head of the all solid-state laser, an output lens of the all solid-state laser, a 45-degree laser partially reflecting mirror, a photoelectric detector and a controller, wherein the magnetic control type lens translation device drives the completely reflecting mirror of the laser to horizontally move so as to change cavity length; the 45-degree laser partially reflecting mirror is arranged outside a cavity and used for reflecting a small amount of lasers to the photoelectric detector; the photoelectric detector is used for converting collected optical signals into electrical signals and then sending the electrical signals to the controller; and the controller calculates a proper change of the laser cavity length by using internal programs and then sends corresponding drive electrical signals to accurately regulate the horizontal displacement of the magnetic control type lens translation device so as to drive the completely reflecting mirror to horizontally displace to change the cavity length, thus changing losses in the laser cavity, and compensating power fluctuation. By using the device provided by the invention, the effect of stabilizing the output power of the laser can be reached.

The invention relates to a automobile backdoor lock comprising a lock body and a lock pin, wherein the lock body is mounted on a backdoor through a lock body mounting hole, and the lock pin is mounted on a automobile body through a lock pin mounting hole; the lock body is provided with a power supply interface, an electrical motor, a clipping tongue sleeve and a clipping tongue which is arranged at the center of the clipping tongue sleeve and is capable of overturning, wherein the electrical motor controlling the clipping tongue is connected with the clipping tongue through a driving mechanism; the lock pin comprises a lock pin base, a lock pin pole and rubber buffer blocks, wherein the lock pin pole is fixed at the center of the lock pin base, the two rubber buffer blocks are respectively and symmetrically arranged at two sides of the lock pin base, the distance between the two rubber buffer blocks is equivalent to the width of the clipping tongue sleeve of the lock body, thus the clipping tongue sleeve exactly inserts between the two rubber buffer blocks, and the clipping tongue at the center of the clipping tongue sleeve matches the lock pin pole to realize locking. The backdoor lock can effectively solve the problems of short service life, big noise of unlocking and locking, and deviation of the lock body and the lock pin in the prior lock.

The invention relates to a piezoelectric and electromagnetic coupling vibration sensor. The piezoelectric and electromagnetic coupling vibration sensor comprises an outer shell, a magnetic circuit system is arranged at the center of the outer shell, a closed annular gap is constituted between the magnetic circuit system and the outer shell, a gap magnetic field is generated in the annular gap, coil vibrating bodies are arranged in the annular gap and hung outside the magnetic circuit system through spring pieces, piezoelectric vibrators are arranged between the coil vibrating bodies and the magnetic circuit system, the coil vibrating bodies can vibrate up and down and reset relative to the magnetic circuit system under the condition of external vibration, up-down vibration of the coil vibrating bodies relative to the magnetic circuit system enables the coil vibrating bodies to cut the gap magnetic field to generate induction electric signals, meanwhile, the piezoelectric vibrators deform to generate vibrator deformation electric signals, the induction electric signals are output through wiring terminals externally connected to the coil vibrating bodies, and the vibrator deformationelectric signals are output through wiring terminals externally connected to the piezoelectric vibrators. The piezoelectric effect and the electromagnetic effect are coupled for detection of vibration signals.

The invention discloses a double-mass flywheel for a double-clutch automatic speed changer. A convex and a concave springs are arranged between a main flywheel body and an auxiliary flywheel body of the double-mass flywheel, power output teeth are arranged in the middle part of a middle disc (41) of a middle disc assembly of the double-mass flywheel, the middle disc is provided with a convex spring cover (412) for assembling an idle speed shock absorption spring of the middle disc assembly, the concave teeth of a middle disc cover (42) of the middle disc assembly adopts a sawtooth shaped structure, the short teeth of the sawtooth shaped structure are of an n-shaped teeth structure (421), and the long teeth (422) tilt to form an upward slope shape. According to the flywheel, torsional oscillation and resonance of a transmission system caused by fluctuation of an engine torque at an idle speed and in a common working condition are avoided, noise of the speed changer and a vehicle body is eliminated, and comfort of the taking is remarkably improved. Meanwhile, power input teeth and the power input teeth of a double-clutch cover assembly are enabled to be maintained in a certain connection status to realize compensation function, the abrasion gap which is unrecoverable caused by hard contact connection between teeth is effectively overcome, and the performance and the use effect of a product is improved.

Disclosed are a semi-conductor laser apparatus and an optical pick-up device which employs the semi-conductor laser apparatus. The semi-conductor laser apparatus comprises a first laser source with first wave length, a second laser source with second wave length greater than the first wave length, a photoelectric detection component, a first holographic component set against with the first laser source, a second holographic component set against with the second laser source and a composite prism. The first, second laser source and photoelectric detection component being integrated, and the first, second holographic components making different light beam focus on the photoelectric detection component. The composite prism comprises rhomboid prism and right angle prism arrayed side by side; a light splitting surface on the combining site, the rhomboid prism and right angle prism have a first, second light injection surfaces set against with the first, second holographic components.

The invention belongs to the technical field of extraction, and particularly relates to a method for extracting perillaldehyde from perilla. The method comprises the following steps: pretreatment, acidification and enzymolysis, primary treatment of an enzyme, secondary treatment, extraction, decolorization and impurity removal, vacuum distillation, and deodorization and purification, an extractionrate is up to 24.76%, the purity is up to 99.3% or more, and quality and a utilization rate of perillaldehyde are significantly improved. The activity of the enzyme is improved through pretreatment,the enzyme has relatively high efficiency in a process of enzymatic destruction of cell walls, enzymolysis is relatively complete, the extraction rate is improved while chemical properties of perillaldehyde is maintained to the maximum, introduction and residue of organic reagents are greatly reduced, and thereby purity and quality of the perillaldehyde finished-product are improved.

The invention provides a connecting structure for a vehicular generator for eliminating coupling of mechanical vibration noise, which solves the problem of resonance and noise easily generated by the prior vehicular generator and the engine. The structure is provided with a hitching pin of a mounting frame of the generator, wherein a compensating sleeve is arranged in a hole of the hitching pin; and a through bolt is arranged in the compensating sleeve. The connecting structure is characterized in that the compensating sleeve is made of PC engineering plastics; and an elastic element is arranged between the compensating sleeve and the through bolt to eliminate vibration when the engine works and avoid resonance of the generator and the engine. The connecting structure has the advantages that rigid connection between the generator and the engine is changed into elastic connection so as to effectively absorb the vibration generated by the engine, avoid the resonance generated by the generator and the engine, and eliminate noise generated by vibration coupling; and the compensating sleeve is made of the PC engineering plastics to meet the use requirement of the vehicular generator under various complicated environmental conditions, thereby reducing friction resistance, and prolonging the service life of the elastic element.

The invention discloses a reference source circuit structure with a high-order compensation circuit. The reference source circuit structure comprises pnp type triodes Q1, Q2, Q3, Q4 and Q5, p type MOStransistors M1, M2, M3, M4, M5, M6, M7 and M8, n type MOS transistors M9 and M10, resistors R1, R2 and R3 and a single-ended output operational amplifier A1, wherein the p type MOS transistors M1, M2and M3, the single-ended output operational amplifier A1, the resistor R1 and the pnp type triodes Q1, Q2, Q3 and Q4 form a positive temperature coefficient current generation circuit which is used for generating current containing a first-order term and a high-order term; wherein Q1 is connected to Q2 in parallel, and Q3 is connected to Q4 in parallel; the p type MOS transistors M5, M6, M7, M8,M9 and M10, the resistor R3 and the pnp type triode Q5 form a zero-temperature-coefficient current generation circuit which is used for providing current bias for Q3; and the p type MOS transistor M4,the resistor R2 and the pnp type triode Q5 form an output branch which is used for outputting the reference voltage. The structure design is simple and convenient, and the temperature coefficient islow.