40results about How to "High trigger sensitivity" patented technology

The invention provides a digital triggering system of an oscilloscope. An ADC module is used for converting analog signals from an analog channel of the oscilloscope into digital signals. A data reconstitution module is used for receiving four 8-bit 625 Mbps data streams output by the ADC module in parallel and outputting x(n) to an up-sampler module in a buffering storage mode. The up-sampler module is used for receiving signals x(n) of the data reconstitution module, so that pixel points of a screen and waveform sampling points are kept consistent. A digital comparator compares signals y(n) output by an up-sampler with a specified triggering threshold value ranging from 0 to 255, an output level is changed, and triggering signals are output. By the adoption of the scheme, the digital triggering system is completely achieved in an FPGA; by the adoption of the digital interpolation mode, the precision of time interval measurement is improved, triggering jittering of the oscilloscope is reduced, and the processing speed and the refresh rate are greatly increased under the circumstance that digital post-processing compensation for jittering is not needed.

The invention discloses a composite fire extinguishing patch and a preparation method thereof. The composite fire extinguishing patch is prepared from the following components in parts by mass: 60-76parts of oxidizing agent, 5-8 parts of reducing agent, 30-38 parts of microcapsule fire extinguishing agent and 50-58 parts of adhesive. The method comprises the following steps: (S1) mixing the oxidizing agent, the reducing agent and the microcapsule fire extinguishing agent in a certain mass ratio; (S2) adding the adhesive into the mixture obtained in (S1) and mixing to obtain a thick aerosol-microcapsule pre-hot pressing system; (S3) performing hot pressing and curing moulding on the aerosol-microcapsule pre-hot pressing system to obtain the composite fire extinguishing patch. The compositefire extinguishing patch disclosed by the embodiment of the invention is prepared by combining the oxidizing agent, the reducing agent, the microcapsule fire extinguishing agent and the adhesive, thetrigger temperature of the composite fire extinguishing patch is reduced, the trigger sensitivity of the composite fire extinguishing material is increased, and the effects of high trigger sensitivity and high fire extinguishing speed of the composite fire extinguishing material are realized; meanwhile, due to the limited space in a socket, the use in the socket can be facilitated by adopting a form of patch.

The invention relates to a key and a keyboard thereof. The key comprises a base plate, a key cap, a support device and a spring-back device, wherein the base plate is equipped with a trigger elastic arm and a trigger switch; the support device comprises a first support component and a second support component; the first support component is pivoted with the key cap and is in sliding connection with the base plate; the second support component is pivoted with the base plate and is in sliding connection with the key cap and is pivoted with the first support component in a crossing form; one of the first support component and the second support component is in contact with the elastic arm; the spring-back device is arranged between the key cap and the base plate and is used for driving the key cap to return; when the key cap is pressed by an external force, one of the first support component and the second support component relatively outward slides so as to drive the elastic arm to trigger the trigger switch; when the external force is released, the key cap is driven by the spring-back device to move back to the un-pressed position; one of the first support component and the second support component relatively inward slides so as to drive the elastic arm to separate from the trigger switch. The key provided by the invention can solve the problems of pressing hand feel of the key and the service life of the elastic component in the prior art.

The upward travel protector for lift includes a clamping mechanism, a triggering mechanism and a resetting mechanism, and is held inside one box hinged to the pedestal. The power spring drives one end of the cam body to generate rotation moment, and cam surface presses the braking board to realize braking; the motion of the eccentric wheel and the rod generates reverse rotation torque to make the protector release; and the triggering force is reduced with the lever and the control board in special structure. The present invention can brake lift in case of accident overspeed during upward traveling. The present invention operates mechanically and has safe and reliable braking, greatly reduced triggering force, timely and accurate triggering, and compact structure. The present invention is also suitable for the braking of other system with steel cable.

The invention discloses a base mechanical trigger fuze of a rifle gun grenade. A booster tube shell, booster explosive, a reinforcing cap, a gasket, a ball cover, an isolation ball, a needling detonator, a split ring, a ball seat, a firing pin, a ballistic spring, a firing pin sleeve, a self-destruction spring, an inertia body, a striking ball and a centrifugal ball are arranged in a fuze body, wherein the booster tube shell, the booster explosive, the reinforcing cap, the gasket, the ball cover, the isolation ball, the needling detonator, the split ring, the ball seat, the firing pin, the ballistic spring, the firing pin sleeve, the self-destruction spring, the inertia body and the striking ball are coaxially arranged from top to bottom, and the centrifugal ball is eccentrically arranged. The isolation ball serves as an explosion-proof piece and forms a ball rotor together with the needling detonator. At ordinary times, the ball rotor is locked at an explosion-proof position by the firing pin and the split ring, so that redundant insurance is realized. The firing pin and the split ring relieve the safety of the ball rotor by means of recoil and rotation environments during firing. The ball rotor also realizes a deferred safety release distance which is more than 20m. The fuze has the functions of floor blasting, large-angle ignition and centrifugal self-destruction, and when the fuze is applied to an antiaircraft gun grenade with the caliber of 35 mm, reliable triggering can be achieved when an aluminum alloy target plate with the thickness of 2 mm is vertically hit. Related requirements of the fuse safety design criterion GJB373B-2019 are met.

The invention provides a high-precision position triggering setting device which comprises a base body. The setting device furthermore comprises a transformation and amplification plate spring and a triggering output switch, the transformation and amplification plate spring is installed on the base body through bolts by means of a fixing pressing block, the triggering output switch strides the transformation and amplification plate spring to be fixed to the base body through a bracket and a second bolt, and the detection portion of the triggering output switch is located at the movable end of the transformation and amplification plate spring. According to the high-precision position triggering setting device, an elastic guide rod performs position information acquisition, position information amplification is achieved through a plate spring elastic element, and a general electric appliance proximity switch is served as the triggering output switch, so that the current position is triggered and set as the datum point, or people are reminded to read a related motion coordinate axis of a numerical control unit to determine the coordinate data of the current position, and precise position setting or precise measurement in combination with a coordinate system of the numerical control unit is achieved.

The invention provides an over-speed stop mechanism. The over-speed stop mechanism comprises a stop road wheel, a stop ejector pin, a stop beam and a stop road wheel drive device, wherein the stop road wheel drive device and the stop ejector pin are separately arranged at the two sides of the stop road wheel; while the stop road wheel drive device moves, the stop road wheel drive device can drivethe stop road wheel to rotate, and the stop road wheel can drive the stop ejector pin to rotate; while the stop road wheel drive device moves in a first direction and moves at constant speed in a second direction, the stop ejector pin does not limit rotation of the stop road wheel; and while the stop road wheel drive device moves at speed exceeding predetermined speed in the second direction, thestop ejector pin automatically returns to a locking state. The mechanism solves potential safety hazards due to the fact that spring rust and corrosion resistance is poor and elastic fatigue is liableto occur after use throughout the year, and avoids manpower resource waste caused by daily checking and replacing a spring. Compared with spring return, the over-speed stop mechanism improves triggersensitivity. Moreover, the over-speed stop mechanism is simple, firm and reliable in structure, is strong is rust and corrosion resistance, and greatly reduces a fault rate.

The invention discloses an elevator speed governor which comprises a rope sheave part, a machine frame and a ratchet wheel fixedly connected with the machine frame. The rope sheave part comprises a rope sheave, a centrifugal rod and a main rod. The middle of the main rod is fixedly installed in the center of the rope sheave, the rope sheave is installed on the machine frame through a bearing, and the rope sheave and the ratchet wheel are concentric; the two ends of the main rod are both provided with a centrifugal rod in a hinged mode, the portions, on the two sides of the center of the rope sheave, of the main rod are both provided with a self-locking hydraulic rod, the other end of each self-locking hydraulic rod is connected with the middle of the centrifugal rod, and a ratchet is fixedly connected with the end, away from the main rod, of the centrifugal rod and corresponds to the ratchet wheel.

The invention discloses key equipment and an electronic equipment assembly. The key equipment comprises a first end, a second end, a key, a switch, a first connecting piece and a second connecting piece, a gap is formed between the first end and the second end, and the first end comprises a conductive part; the first connecting piece is electrically connected with the key and the switch respectively; the second connecting piece is electrically connected with the switch and the conductive piece respectively; and when the key is in the first state, the key abuts against the switch, the switch is in the on state, and signals obtained by the key are transmitted to the conductive piece through the first connecting piece, the switch and the second connecting piece. And under the condition that the key is in the second state, the key is separated from the switch, and the switch is in an off state.

A 1.55 μm single-photon coherent laser radar system device relates to the application field of laser technology. For the existing lidar, the detection method needs to improve the detection sensitivity, improve the detection distance capability of the seeker, improve the ability to obtain multi-dimensional information of the target, and improve the anti-jamming and target recognition capabilities. The present invention applies GM-APD focal plane detection to laser pulse coherent technology, adopts a Gm-APD heterodyne coherent scheme, and selects short-wave infrared wavelengths. This detection scheme has higher imaging detection sensitivity than coherent detection systems, and can simultaneously acquire The three-dimensional distance value of the target, the plane profile intensity value and the Doppler target velocity value can obtain more accurate target information differences under the three-dimensional angle of space, provide reliable three-dimensional space data for target recognition, tracking, etc., and have strong anti-interference in heterodyne detection On the basis of the ability, the detection sensitivity is improved to the single photon level, which is suitable for the field of weak light detection of long-range non-cooperative targets.

The invention discloses an elevator speed governor which comprises a rope sheave part, a machine frame and a ratchet wheel fixedly connected with the machine frame. The rope sheave part comprises a rope sheave, a centrifugal rod and a main rod. The middle of the main rod is fixedly installed in the center of the rope sheave, the rope sheave is installed on the machine frame through a bearing, and the rope sheave and the ratchet wheel are concentric; the two ends of the main rod are both provided with a centrifugal rod in a hinged mode, the portions, on the two sides of the center of the rope sheave, of the main rod are both provided with a self-locking hydraulic rod, the other end of each self-locking hydraulic rod is connected with the middle of the centrifugal rod, and a ratchet is fixedly connected with the end, away from the main rod, of the centrifugal rod and corresponds to the ratchet wheel.

The invention discloses an illumination lamp convenient for old people to get up in the night and belongs to the technical field of electronics. The illumination lamp is mainly designed for the old people and is an illumination measure convenient for use. The illumination lamp is composed of a bridge rectifier unit, an electric bridge touch unit, a touch end, a first-level emitter follower unit, a second-level emitter follower, a power amplifier unit and an indicator unit. When a hand touches the touch end, a touch signal enters the electric bridge touch unit; and an output signal of the electric bridge touch unit passes through the first-level emitter follower unit and the second-level emitter follower, is amplified by the power amplifier unit and then is used for starting the indicator unit to form shining indication. According to the illumination lamp, two levels of emitter followers and two levels of integration are employed; a time constant is increased; after current amplification is carried out by the power amplifier unit, multiway shining indicator branches can be driven; the light of the illumination lamp is different from other dazzling light, but illumination also can be realized; through utilization of light emitting tubes, the power is low, so power can be saved, and the illumination lamp is convenient for getting up in the night. The illumination lamp is particularly applicable to the old people and is beneficial for the society and the harmony of the society.

The invention provides a novel protection design of a POS safety detecting switch. The POS safety detecting switch POS machine shell demounting-preventing part, a demounting-preventing conductor, a demounting monitoring switch and the demounting-preventing detecting bonding pad of a POS machine mainboard, wherein the demounting monitoring switch is located on the demounting-preventing detecting bonding pad; the demounting-preventing conductor comprises a conductive part and a sheet-shaped conductive elastic part, one end face of the sheet-shaped elastic part is a power connection face, the other end face of the sheet-shaped elastic part is a pressure-bearing face, and the conductive part is fixed on the power connection face of the elastic part through an insulating structure; when the demounting-preventing conductor is mounted on the demounting-preventing detecting bonding pad, the pressure-bearing face of the elastic part contacts with the POS machine shell demounting-preventing part, the elastic part deforms under the pressure of the POS machine shell demounting-preventing part to allow the conductive part on the elastic part to contact with the demounting monitoring switch so as to allow the demounting monitoring switch to be in a not-triggered state; when the pressure-bearing face of the elastic part does not bear pressure, the elastic part recovers to allow the conductive part to be separated from the demounting monitoring switch so as to trigger the demounting monitoring switch. By the novel protection design, the demounting monitoring function of a POS machine can be intensified, and illegal demounting can be prevented.

The invention discloses a high-voltage fuse for power transmission and transformation in an oil field, and the fuse comprises an insulator magnetic bottle, two ends of the insulator magnetic bottle are fixedly connected with connecting rings, the bottom of one connecting ring is fixedly connected with an upper conductive connecting piece, one side of the upper conductive connecting piece is fixedly connected with an upper binding post. An upper static contact plate is fixedly connected to the center of the bottom of the upper conductive connecting piece, an upper contact groove is formed in the middle of the upper static contact plate, and side plates are fixedly connected to the two sides of the bottom of the upper conductive connecting piece. According to the high-voltage fuse for power transmission and transformation in the oil field provided by the invention, when the fuse tube is replaced, the fuse tube is guided and limited to move and transfer, so that the fuse wire can be replaced without disassembling the whole fuse, and the stability and the accuracy during replacement and installation are improved; and the fusing trigger sensitivity and safety are good.

The invention discloses a magnetic induction triggering structure. The structure comprises a base, a spring vertically arranged on the surface of the base, a shaft core arranged at the top end of thespring and used for moving in the vertical direction under the pressing effect, and a magnetic induction switch arranged on the surface of the base and used for triggering a preset output signal through the Hall effect when the shaft core is vertically pressed downwards to a preset distance. The invention provides a magnetic induction triggering structure. The Hall effect is utilized to trigger the key to output signals in the mode that the shaft core approaches the magnetic induction switch under the pressing effect. Key triggering control is achieved, the shaft core does not need to be in physical contact with the magnetic induction switch, so that the magnetic induction switch is prevented from being impacted and abraded, the service life can be prolonged, meanwhile, the shaft core andthe magnetic induction switch do not need to be in face-to-face friction abutting connection, the triggering delay and springback hysteresis phenomena can be reduced as much as possible, and the switch triggering sensitivity is improved. The invention also discloses a control key and a server, which have the above beneficial effects.

The invention discloses an automatic tension adjusting system for an elevator wire rope. The system comprises a first cross beam (1), wherein first sliding chutes (2) are formed in the first cross beam (1), first high-strength springs (3) are arranged in the first sliding chutes (2), a first moving beam (4) is fixed on the first high-strength springs (3), and a lower pulley block (6) consisting of multiple lower pulleys (5) is arranged on the first moving beam (4); a pulley upper beam (7) is arranged above the first cross beam (1), an upper pulley block (9) consisting of multiple upper pulleys (8) is arranged on the pulley upper beam (7), and the upper pulley block (9) and the lower pulley block (6) are wound with the elevator wire rope (10). The automatic tension adjusting system for the elevator wire rope has the characteristics of high trigger sensitivity, quick response and rapid tension compensation, and further, the system can supply higher lifting power with smaller travel change so as to effectively tension the wire rope.

An automatic clip opening and closing system comprises a clip material frame, a carrier plate arranged in the clip material frame, a ratchet mechanism arranged at the bottom of the clip material frame, a lock rod mechanism arranged on the side wall of the clip material frame and matched with the ratchet mechanism, and a trigger mechanism matched with the ratchet mechanism. The trigger mechanism can trigger the ratchet mechanism to do telescopic motion in the first direction, then the lock rod mechanism is controlled to move in the second direction different from the first direction, and therefore the carrier plate is locked or unlocked. According to the provided automatic clip opening and closing system, an automatic control system is adopted, automatic opening and closing of the clip material frame can be achieved, and the situation that due to manual operation errors, the carrier plate slides out and falls off, or the clip material frame tilts and turns over materials, and products are damaged or lost is avoided.

The invention discloses electronic equipment. The electronic equipment comprises a housing, a lever and an induction key, wherein the housing is provided with an inner cavity; and the lever and the induction key are arranged in the inner cavity. The housing comprises a pressing area. A first protrusion is arranged on the surface of the inner side of the pressing area, the first end of the lever isconnected with the housing, the induction key is in sliding contact with the second end of the lever, the first protrusion is in sliding contact with the lever, and the contact position of the firstprotrusion and the lever is located between the first end and the second end; and under the condition that the pressing area is subjected to external force, the lever can rotate by taking the first end as the center along with the movement of the first protrusion, and the second end of the lever triggers the induction key. According to the scheme, the problem of relatively low triggering sensitivity of the induction key can be solved, so that the reliability of the electronic equipment is improved.

The invention discloses an elevator overspeed governor. The elevator overspeed governor is characterized in that the governor comprises a rope sheave part, a rack and ratchet wheels which are fixedly connected with the rack; the rope sheave part comprises a rope sheave, a main rod arranged at the center of the rope sheave, centrifugal rods and self-locking hydraulic rods; spline shafts are fixedly welded to the two ends of the center of the rope sheave; the rope sheave is installed on the rack through a bearing, and the rope sheave and the ratchet wheels are concentric; spline grooves corresponding to the spline shafts are formed in a center hole of the main rod; the centrifugal rods are hinged to the two ends of the main rod correspondingly, the positions, located at the two sides of the center of the rope sheave, of the main rod are connected with the self-locking hydraulic rods separately, and the other end of each self-locking hydraulic rod is connected with the middle part of the corresponding centrifugal rod; the main rod is provided with a hydraulic controller, and the hydraulic controller is connected with hydraulic cylinders of the self-locking hydraulic rods; the input end of the hydraulic controller is connected with a peripheral control button in a wireless mode; and the ends, corresponding to the ratchet wheels, of the centrifugal rods are fixedly connected with ratchets.

The invention relates to a self-adaptive adjustment method and device for respiratory support equipment, computer equipment and a storage medium. The method comprises the steps of analyzing trigger accuracy and replacement accuracy of the respiratory support equipment in a previous work cycle, and comparing a wrong trigger frequency and a late trigger frequency in inaccurate trigger frequencies when the inaccurate trigger rate is larger than a preset inaccurate trigger rate threshold value; if the wrong trigger frequency is smaller than the late trigger frequency, improving the trigger sensitivity of the respiratory support equipment, otherwise, reducing the trigger sensitivity of the respiratory support equipment; when the inaccurate replacement rate is larger than a preset inaccurate replacement threshold value, comparing an excessively-early replacement frequency and an excessively-late replacement frequency in inaccurate replacement frequencies; if the excessively-early replacementfrequency is smaller than the excessively-late replacement frequency, lifting a replacement point of the respiratory support equipment, otherwise, lowering the replacement point of the respiratory support equipment.

The invention discloses an automatic fishing device and an automatic fishing rod with the same. A take-up pulley of the automatic fishing device is assembled with an automatic take-up mechanism, the take-up pulley is arranged on an automatic machine seat, the upper automatic machine seat is provided with a directional clip, and the front automatic machine seat is sequentially provided with a trigger mechanism, an alignment mechanism and an automatic rod I; the automatic rod I and the directional clip are rotationally arranged on the automatic machine seat; one end of the automatic rod I is matched with the tooth end of a large ratchet wheel in the automatic take-up mechanism, while the other end is matched with the trigger mechanism; and one end of the directional clip is matched with the tooth end of a small ratchet wheel. The upper end of the automatic machine seat in the automatic fishing device of the automatic fishing rod is provided with a diverter which is connected with a rod handle, while the lower end is provided with a positioning rod. The automatic fishing device has the advantages of simple operation, safety, reliability, high trigger sensitivity, prevention of direction limit of a line taken away by a fish and high fishing rate; and the automatic fishing rod provided with the automatic fishing device has the advantage of preventing winding.

The invention relates to a safe and reliable flexible CIGS solar module high-voltage resistance test equipment, and solves the problem that the existing flexible CIGS solar module high-voltage resistance test equipment has potential safety hazards of hand clamping and hand pressing. The equipment comprises a rack, and a test platform is arranged on the rack. The equipment is characterized in thata liftable pressing plate is arranged above the test platform, an anti-pinch insulating strip is embedded in the periphery of the bottom surface of the pressing plate, the anti-pinch insulating stripis provided with a cavity extending in the direction consistent with that of the rubber strip body, an upper conductive metal sheet extending in the direction of the cavity is attached to the upper surface of the cavity, a lower conductive metal sheet parallel to the upper conductive metal sheet is attached to the lower surface of the cavity, and the upper conductive metal sheet and the lower conductive metal sheet serve as two contacts of the emergency stop switch. The anti-pinch insulating strips which are extruded to trigger emergency stop are arranged on the periphery of the pressing plate, emergency stop can be achieved when the hand stretches into the position below the pressing plate in the starting state of the pressing plate, and operation safety is guaranteed.

The invention discloses a high-sensitivity impact-triggered supersonic nose fuze. A sliding seat and a spring are additionally arranged in a head cavity body of an existing supersonic nose fuse, a collision explosion element is moved upwards into the sliding seat, the sliding seat is in clearance fit with the head cavity body, the top face of the sliding seat is tightly attached to the bottom face of a cover foil of the existing supersonic nose fuse, and the spring is arranged below the sliding seat. The collision explosion element can sense an aerodynamic thermal environment generated by a bullet flying at a high speed at the head of the nose fuse, the sensitivity of the collision explosion element is obviously increased along with temperature rise, as the collision explosion element is tightly attached to the lower portion of the cover foil, when the fuse collides with a target at a high speed, the sliding seat carries the collision explosion element in the sliding seat to move forwards inertially, and therefore the trigger sensitivity of the fuse is greatly improved, and the high-sensitivity impact-triggered supersonic nose fuze is especially suitable for attacking weak targets such as hot-air balloons and small unmanned aerial vehicles; and when the fuse head falls downwards during service handling, the falling speed is low, the spring below the sliding seat can be pressed to retreat, and therefore the safety of the collision explosion element in the sliding seat is guaranteed.

The invention discloses a high-voltage switch, provides a high-voltage switch which is simple in structure, high in reliability and long in service life, and solves technical problems existing in the prior art that the high-voltage switch is poor in sensitivity, an elastic diaphragm and a micro switch contact are easy to wear, the service life is short and the like. The high-voltage switch comprises a lower cover body connected to a fluid pipeline in parallel and an upper cover body covering the lower cover body, wherein the upper cover body and the lower cover body form a valve element accommodating cavity in an enclosing manner together, the valve element accommodating cavity is internally provided with a micro switch connected with external electrical equipment and a valve element assembly connected with the fluid pipelines, the valve element assembly comprises an elastic diaphragm covering an interface of the lower cover body in a sealing manner, a triggering movable block is clamped between a contact of a micro switch and the elastic diaphragm, one end of the triggering movable block is slidably clamped at the inner wall surface of the valve element accommodating cavity, the upper part of the other end of the triggering movable block is abutted against the inner wall surface of the upper cover body through a compression spring, and the triggering movable block is contacted with the contact and triggers the micro switch under driving of the elastic diaphragm.

The invention discloses a multi-position wall switch, relates to the technical field of switches and is intended to solve the problem that a multi-position wall switch of the prior art has poor key sensitivity and is easily triggered by mistake. The multi-position wall switch of the invention comprises a fixing frame provided with a fixing port, a PCB (printed circuit board) is fixed in the fixing port, a front panel covers the fixing frame, the front panel is larger than the fixing port in area, the multi-position wall switch also comprises a plurality of switch keys, each switch key is correspondingly provided with a backlight module including a backlight panel fixed to the front panel, the arrangement range of the backlight panels on the front panel is wider than the projection range of the fixing port on the front panel. The multi-position wall switch is intended to provide improved key sensitivity and prevent mistaken trigger.

The invention discloses a multi-position wall switch, relates to the technical field of switches and is intended to solve the problem that a multi-position wall switch of the prior art has poor key sensitivity and is easily triggered by mistake. The multi-position wall switch of the invention comprises a fixing frame provided with a fixing port, a PCB (printed circuit board) is fixed in the fixing port, a front panel covers the fixing frame, the front panel is larger than the fixing port in area, the multi-position wall switch also comprises a plurality of switch keys, each switch key is correspondingly provided with a backlight module including a backlight panel fixed to the front panel, the arrangement range of the backlight panels on the front panel is wider than the projection range of the fixing port on the front panel. The multi-position wall switch is intended to provide improved key sensitivity and prevent mistaken trigger.