107results about How to "Sensitive and reliable" patented technology

The invention discloses an automatic speed changer. The automatic speed changer comprises a gear range gear transmission system and a gear shift mechanism execution system and is characterized in that: the gear shift mechanism execution system comprises an operating control device, a reverse action device and a transmission shifting device; the reverse action device comprises a control frame, a driving frame, a driven frame and a spring; the driving frame is elastically connected with the driven frame through the spring; the driving frame and the driven frame are in axial slide fit with the control frame respectively; the slide stroke of the driving frame is larger than that of the driven frame, and the middle point of the slide stroke of driving frame and the middle point of the slide stroke of driven frame are on the same plane; the operating control device can make the driving frame move so as to force the driven frame to reversely move; and the driven frame is moved to make the transmission shifting device force the gear range gear transmission system to shift so as to change the speed. The automatic speed changer has the advantages of high transmission efficiency, variable gear ranges and long service life, can be assembled on various motor vehicles and agricultural machinery and can save power and fuel when used.

The present invention relates generally to a method for computer-aided quantitative diagnosis of cerebrovascular and neurodegenerative diseases (such as Alzheimer's, vascular dementia, mild cognitive impairment, transient ischemia, stroke etc.) via a vasomotor reactivity index (VMRI) which is computed on the basis of a computational model of the dynamic nonlinear inter-relationships between beat-to-beat time-series measurements of cerebral blood flow velocity, arterial blood pressure and end-tidal CO2. This model is obtained by means of a method pioneered by the inventors and may incorporate additional physiological measurements from human subjects. Its purpose is to provide useful information to physicians involved in the diagnosis and treatment of cerebrovascular and neurodegenerative diseases with a significant neurovascular component by offering quantitative means of assessment of the effects of the disease or medication on cerebral vasomotor reactivity. Initial results from clinical data have corroborated the diagnostic potential of this approach.

A gas-selective permeable membrane (1) utilisable in a leak detector for a gas, more particularly helium, comprising a sheet-like body (11) on which at least one reduced thickness area (15) is defined by removing a material from the sheet-like body. This at least one reduced thickness area (15) being permeable to at least one gas and formed so as that it is partly surrounded by a thicker and substantially gas-impermeable area (16) ensuring the structural strength of the membrane.

The invention belongs to the field of machine manufacturing, particularly relates to an automatic filament charging machine for lamp filament transfer and conveyance. Aiming at the defect that the traditional discharging machine cannot provide only one lamp filament to the filament clamping conveyance component each time in a material supply link, the invention discloses an automatic filament charging machine which can provide only one lamp filament to the filament clamping conveyance component each time in the material supply link; two gate plates are arranged at a discharging end of a vibrating material hopper to form a split type gate, and only one lamp filament is supplied to the subsequent filament clamping conveyance component each time by virtue of the through hole on the gate, so that the lamp filaments can be clamped and conveyed one by one; and the misoperation of the traditional filament discharging machine that a plurality of lamp filaments are conveyed at the same time when the discharging end of the vibrating material hopper has a fault can be avoided, the operating and working reliability of the whole machine is improved.

The invention discloses a lane departure early warning system. A camera transmits obtained vehicle front lane line boundary image information to a camera processing module, the camera processing module transmits a lane departure alarm signal to a CAN bus according to the image information, the CAN bus transmits the alarm signal to an instrument controller, an automobile instrument gives an alarm,the CAN bus transmits the alarm signal to an electric power-assisted module, and a steering wheel shakes to give the alarm. By the adoption of the lane departure early warning system, a user can set the alarm sensitivity, an operation mode is quite user-friendly, system alarm types are comprehensive and include the sound sense type, the visual sense type and the touch sense type (steering wheel vibration), the user can obtain alarm information in time and interfere in the current traveling state of an automobile in time, practicability is quite high, in addition, the automobile is safer through the system, and the system accords with the automobile safety development trend.

Apparatus and method for determining the triacetin content in cigarette filter plugs during the manufacture of the filter plugs from a filter tow. The apparatus including a filter tow storage container, a filter tow stretching device, a device for feeding triacetin, to the filter tow, a plug-forming device, a device for dividing the plug into portions, a first microwave sensor disposed downstream of the plug-forming device, and a second microwave sensor disposed upstream of the feed device for the triacetin. The triacetin content is determined by transmitting a high frequency electromagnetic field through the filter plug both before and after the triacetin is added and measuring the frequency shift and spread of the electromagnetic field to determine mass signals A_t and A₀, respectivley. A₀ is compared to A_t to calculate the triacetin content of the filter plug.

An HCV antigen/antibody/antigen assay is provided. The assay employs an isolated first antigen from a region of the HCV polyprotein, and an HCV multiple epitope fusion antigen that includes an epitope from the same region of the polyprotein as the first antigen. Both the first antigen and the multiple epitope fusion antigen bind antibodies present in an HCV-infected sample.

The invention belongs to the field of a distributed generating system of renewable energy sources, and relates to a method for protecting an inverter in a distributed generating system. The method is characterized by comprising overcurrent protection, overvoltage protection, undervoltage protection and overheating protection for a direct-current (DC) side, short-circuit protection and anti-isolated island protection for an alternating-current (AC) side, and fundamental overcurrent protection and secondary harmonic overcurrent protection for the DC side. The protection mode is as follows: DC current data at the DC side are collected, and a fundamental component and a secondary harmonic component are acquired after the data are processed by Fourier transform; overcurrent protection criterions of fundamental waves and secondary harmonic waves are set, and an overcurrent protector of the fundamental waves or the secondary harmonic waves acts when respective criterion is met. In the scheme provided by the invention, the principles are clear, and fault characteristics of the inverter are utilized sufficiently, thus being capable of quickly, flexibly and reliably reflecting short-circuit and disconnection faults of power tubes and a short-circuit fault of the AC side inside the inverter.

The invention discloses a yarn splicing guide device of an automatic bobbin winder. The device comprises a splicer and a guide bracket, wherein the splicer is used for grabbing a large suction nozzle at the upper yarn end and grabbing a small suction nozzle at the lower yarn end, and the guide bracket keeps a fixed position with the splicer; the guide bracket supports a yarn guide hook in a swing mode, and the yarn guide hook is mutually and fixedly connected with a guide swing arm; the yarn guide hook and an upper yarn passage form space intersection, and an arm end part of the guide swing arm is positioned on a rotary track of the small suction nozzle; and the guide bracket is also provided with an offsetting spring for rotating and offsetting the yarn guide hook. The yarn guide hook is mutually and fixedly connected with the guide swing arm through a connecting sleeve which is sleeved on a yarn guide hook support shaft in a swing mode; the yarn guide hook support shaft is vertically and fixedly arranged on the guide bracket; and the yarn guide hook and the guide swing arm are crossed and staggered in space. The yarn splicing guide device has the advantages of simple structure, accurate yarn guide and good splicing quality, and is widely applied to various automatic bobbin winders.

The invention provides a liquid crystal display module laminated structure and electronic equipment. The laminated structure comprises a liquid crystal display module layer, an NFC antenna coil layer arranged on the liquid crystal display module layer, a cover plate arranged on the NFC antenna coil layer and a magnetic-conductive material layer arranged below the NFC antenna coil layer and located above or below the liquid crystal display module. The laminated structure has the advantages that the new laminated structure combines the NFC module and the display module, an NFC function is added to the touch function of the liquid crystal display module, and the integration level of the liquid crystal display module is further increased; due to the fact that the NFC module is located above a screen, sensitivity and reliability during use are achieved, a wide application range is achieved, and the NFC module is especially suitable for fields, that equipment rear cannot be touched, such as vehicular screens and automatic telling machine screens; from the perspective of cost, an NFC antenna can hopefully share the base material with the touch screen, and cost can be lowered greatly.

The invention relates to a self-operated pressure range switching device, and belongs to the technical field of pipeline pressure detection. A valve body of the device is provided with a pressure-to-be-detected channel and high and low pressure measuring channels; a valve plug is provided with first and second limiting positions; first and second chutes on the valve plug are respectively connected with first and second on/off control elements through first and second connecting rods; when high pressure gas is introduced, the valve plug is positioned at the first limiting position, the first on/off control element switches on the high pressure measuring channel, and the second on/off control element disconnects the low pressure measuring channel; and when low pressure gas is introduced, the valve plug is positioned at the second limiting position, the first on/off control element disconnects the high pressure measuring channel, and the second on/off control element switches on the low pressure measuring channel. The self-operated pressure range switching device can automatically switch pressure ranges, so that sudden high pressure is prevented from damaging a low range pressure gage, the service life of the pressure gage is prolonged, the maintenance cost is reduced, and the self-operated pressure range switching device has a compact structure and concise pipelines.

The invention discloses a method for testing melamine in raw milk and dairy products. The high-efficient liquid phase chromatography is adopted for testing, the samples of raw milk and dairy product are preprocessed by way of hollow fiber membrane liquid-liquid-liquid phase microextraction, the organic phase is adsorbed on the pore wall of the fiber membrane, the aqueous phase as the receiving phase exists in the fiber membrane, and after being soaked in the sample solution to be detected and is extracted, the fiber membrane is directly tested by HPLC. Meanwhile, the invention also discloses a sample preprocessing device for the method and a preparation method thereof. The method is sensitive and reliable, the operation of the testing method is simple and convenient, the cost is saved, and the method is environment-friendly.

The invention discloses an infrared opposite-type coal mine conveyor adhesive tape anti-tearing protection method and device. An infrared emitter and an infrared receiver are installed on longitudinal beams on the two sides of a conveyor through lower fixing frames correspondingly; a coal receiving mechanism is arranged between upper adhesive tape and lower adhesive tape of the conveyor and comprises two coal receiving boards and one coal receiving tank; the two coal receiving boards are arranged obliquely, and the interval between the upper ends of the two coal receiving boards is greater than the interval between the lower ends of the two coal receiving boards; meanwhile, the lower ends of the two coal receiving boards are connected with the upper ends of the two sides of the coal receiving tank correspondingly; the coal receiving tank is rectangular, and the upper end of the coal receiving tank is open; a connection rod is arranged at the interval between the two ends of the two coal receiving boards; and the infrared emitter and the infrared receiver are located in the middles of the two ends of the two coal receiving boards correspondingly. The infrared sensors are used as collection elements to achieve all the functions of an original anti-tearing protection device, the defects of the original anti-tearing protection device are overcome, safe production of a mine is ensured, and investment of the production cost is reduced.

The invention discloses an automatic gearbox which comprises a gears gear driving system and a gear shift mechanism executing system. The automatic gearbox is characterized in that the gear shift mechanism executing system comprises a control device, a gear stabilizing device, a gear shift shifting device and a transmission buffering device. The gear stabilizing device is an elastic angle tooth device or a reverse action device, the gear shift shifting device is a key clutch or a combined sleeve clutch, the control device is connected with the reverse action device or a gear shifting spring matching with the elastic angle tooth device to achieve the function of the key clutch or the combined sleeve clutch, and the gears gear driving system is forced to shift gear to achieve speed change. A steel disc synchronous elastic combined sleeve of the combined sleeve clutch is assembled between a first gear sliding gear and a second sliding gear, and a gear shaft is provided with a torque limiter. The automatic gearbox is low in manufacture cost, high in transmission efficiency, long in service life, and capable of being assembled on various vehicles and agricultural machinery, and the using of the automatic gearbox is power-saving and fuel-saving.

The invention relates to an interlinked indexing and positioning device and belongs to the technical field of machining. The operating principle and process include that an air cylinder pushes a crank, the crank drives an intermediate sleeve to rotate clockwise, and a collision block on the intermediate sleeve pushes a swing arm to drive a steel wire rope to pull out a positioning pin. When the positioning pin is pulled out, a pawl of the intermediate sleeve is clamped on clamping grooves of a ratchet during rotation so as to drive the ratchet to rotate, and the ratchet directly drives an indexing disc to rotate by a certain angle. When indexing is finished, the positioning pin is inserted into a positioning hole of the indexing disc under the action of a spring to position the indexing disc. The air cylinder drives the crank, the intermediate sleeve and the pawl to return to the initial indexing position to prepare next indexing, and interlinked indexing and positioning are achieved by cycling the process. The interlinked indexing and positioning device can achieve indexing and positioning simultaneously and is energy-saving, small in occupied space, accurate and reliable.

The invention discloses a two-dimensional vibroswitch device for a windmill generator, which comprises a shell, a sliding sleeve, a support seat, a swinging rod, a sliding rod and a pushing rod, wherein the swinging rod swings in the sliding sleeve; the sliding rod is arranged below the swinging rod through a spring seat and driven by the swinging rod to move up and down in the sliding sleeve; the pushing rod is driven by the sliding rod to move up and down in the support seat; the pushing rod is fixed with two contact springs and moving permanent magnets; and the bottom of an inner cavity of the support seat is fixed with fixed permanent magnets and two fixed contact terminals provided with conducting strips. The vibroswitch device has the advantages of compact structure and convenient assembly and use, and can realize quick and accurate actions without being driven by a power supply, so that the damage of the wind mill generator due to excess vibration of a tower is avoided.

The invention discloses a thermosensitive detonating tube which comprises a base, a nut, a propellant cavity A, an aluminum foil A, an aluminum foil B, a propellant cavity B and a gasket, wherein the exterior of the base is provided with an outside thread, the interior of the base is divided into two parts by an interlayer with a small hole in the middle, one part of the base is provided with an inner thread and the propellant cavity A, and the nut is matched with the inner thread; the propellant cavity A is positioned between the nut and the interlayer, the other part of the base is provided with the propellant cavity B, and the aluminum foil A and the aluminum foil B are respectively arranged on the two sides of the interlayer; one end, positioned on the base, of the propellant cavity B is provided with a propellant hole which is communicated with the aluminum foil B, and the gasket is blocked on the inner side of the propellant hole. According to the thermosensitive detonating tube, under extreme environments such as fire disaster, the inner propellant is burnt to produce high-pressure gases, so that two end bottoms of the thermosensitive detonating tube and shells of a high-pressure gas tank, a gas bottle and the like are broken, a gas valve is driven to open a leakage passage, the gases in the gas tank and the gas bottle are discharged, and physical explosion is avoided.

Methods and devices for detecting cornering and in particular over-steered cornering, as well as a method and a device for stabilizing a vehicle in case of an over-steered cornering maneuver are described. The detection can be carried out with reference to wheel slip values and/or transverse acceleration values. The stabilization is carried out upon detection of the over-steered cornering maneuver by means of suitable interventions in the brake system.

The invention provides a gas igniter integrated device. The gas igniter integrated device comprises a transformer sleeve, a gas pipe connected with the transformer sleeve and a casing pipe connected with one side of the gas pipe and further comprises an automatic ignition device, an ignition transformer, a flame monitoring device, an input and output port and a programmable logic controller (PLC) control circuit. The automatic ignition device is arranged in the transformer sleeve and connected with the PLC control circuit through the input and output port; and the ignition transformer is arranged in the transformer sleeve, connected with a relay of the automatic ignition device, and controlled by the PLC control circuit. The flame monitoring device is arranged in the casing pipe and composed of three parts including a gas burner, an ignition electrode and an ion electrode, the gas burner is connected with the gas pipe through a valve, the ignition electrode is connected with the ignition transformer, and the ion electrode is connected with the automatic ignition device. The ignition transformer can generate thousands of volts of high voltage, simultaneously a short circuit protective circuit and an open circuit protective circuit are provided; flame is monitored in real time; and the gas igniter integrated device is high temperature resistant, strong acid resistant, oxidation resistant, compact in structure and convenient to use.

An apparatus for measuring the displacement of visco-elastoplastic media below a surface thereof comprises an upper plate mounted such that a displacement force exerted on the top surface thereof will move the upper plate a displacement distance downward toward a base. Guides maintain the upper plate and the base in alignment such that movement is along a displacement axis. A calibrated bias element exerts a calibrated bias force resisting movement of the upper plate toward the base. A displacement measuring device measures the displacement distance, and is operative to generate a movement signal corresponding to the displacement distance. A data acquisition system is operative to receive and record the movement signal, and calculate the displacement force exerted on the top surface of the upper plate required to move the upper plate the displacement distance against the calibrated bias force.

The invention discloses an intelligent deflection adjusting device applied to a circular-pipe-belt conveyor. Execution parts are arranged on two sides of a framework in a staggered mode and are connected to each other through connecting rods, and carrier rollers are installed on brackets of the execution parts; power parts are installed on the outer side of the framework, and push rods of electro-hydraulic push rods are connected to the brackets of the execution parts; cameras of an intelligent control part are installed on the framework; rotatable brackets are installed on a supporting bottomframe and are fixed by connecting pin shafts; the electro-hydraulic push rods are installed on the base; and the cameras are connected to a data transmission system, the data transmission system is connected to an image analysis system, and the data transmission system is connected to an electric control system. According to the device, the detection of the deflection of a tubular conveying beltis continuous and accurate, no special detection element is adopted, the reliability is high, the failure rate is low, the intelligent automatic control can be realized, no extra abrasion is generatedto the conveying belt during normal operation, the service life is long, the deflection of the tubular conveying belt is corrected, and the device can be applied to the technical field of bulk material conveying equipment.

The invention provides methods for measuring concentrations of basic or neutral compounds, such as phenoxybenzamine, in biological samples, and methods for treating patients based on the compound concentrations in the biological samples from the patients.

The invention belongs to the field of automobile steering control, in particular to a platform frame used for steering-by-wire experiments, which comprises simulation loads used for simulating ground lateral resistance received by an automobile when the automobile changes direction. The platform frame for experiments further comprises a steering action input end used for placing a steering assembly and a transmission unit used for connecting the steering action input end and the simulation loads. The two simulation loads are coaxially arranged on two sides of the output end of the transmission unit. The platform frame for experiments further comprises a sensor, the transmission unit drives the simulation loads to generate axial movement along a transmission shaft of the simulation loads, and the sensor acquires force and/or displacement information at the position of the simulation loads. The parts are integrated on the same platform frame, and the parts are compact in arrangement, simple in structure and easy to process. After set information is input into the steering action input end, axial movement is generated at the simulation loads, and simultaneously the sensor records the movement displacement and stressed information in proper time. The platform frame is sensitive and reliable in integral action and convenient to use.