32results about How to "Less affected by outside" patented technology

The invention provides a moving-coil loudspeaker with an area-alterable capacitive vibration sensor, of which the magnetic path structure is an outer magnetic path or an inner magnetic path. A coil is wound on a conductive voice coil framework to form a voice coil, a capacitive/moving signal converting circuit is provided, the area-alterable capacitive vibration sensor positioned in the same axial direction as the conductive voice coil framework and used for measuring the displacement of the voice coil is arranged between a magnetic-conductive column and a magnetic-conductive upper plate, and capacitance variable output by the area-alterable capacitive vibration sensor is transmitted to the input terminal of the capacitive/moving signal converting circuit. As the capacitance value of the area-alterable capacitive vibration sensor and the displacement of the voice coil form a linear relationship, wide-range linear output is achieved, and the measurement requirement of a large-amplitude highly-dynamic low-frequency loudspeaker is particularly satisfied; and a moving signal of the loudspeaker voice coil can be obtained through detecting the output of the sensor by the capacitive/moving signal converting circuit to serve as a feedback signal to be input into the feedback input terminal of a moving servo amplifier, so that the closed-loop control of the loudspeaker is realized.

The invention discloses a gate opening detection device. The device consists of a measuring rod, a long-stroke displacement sensor, an anti-sway component and a mounting bracket, wherein the long-stroke displacement sensor is used for detecting the actual position of the measuring rod in an opening or closing process of a gate for acquiring a gate opening electric signal; the long-stroke displacement sensor is arranged on the edges on the two sides of the gate; the measuring rod matched with the long-stroke displacement sensor is arranged inside or outside a water retaining working surface of a gate structure; the mounting frame is fixed on a side wall of a gate wall; and the mounting bracket is connected with the long-stroke displacement sensor through the anti-sway component. The gate opening detection device has less conversion links, little outside influence, high detection accuracy, safety, reliability and low cost, is easy to manufacture, adopts a rigid structure, improves the adaptive capacity to a severe environment, and is convenient to install and maintain due to the adoption of external arrangement.

The invention discloses a liquid metal battery. The liquid metal battery at least comprises a first component, wherein the first component comprises a first housing and a first conductive crucible arranged in the first housing; a first positive electrode, a first negative electrode and a first negative electrode lead-out rod are arranged in the first conductive crucible; one end of the first negative electrode lead-out rod is inserted into the first negative electrode; the first conductive crucible is filled with a first electrolytic material; a first top cover is arranged at the top of the first housing; an insulation part is arranged in the middle of the first top cover; the first negative electrode lead-out rod is vertically arranged; the other end of the first negative electrode lead-out rod penetrates out of the insulation part and is insulated with the insulation part. According to the liquid metal battery with the structure, the first conductive crucible with the insulation effect is arranged in the first housing and is used for preventing alloy reaction between the first positive electrode and the first housing; the first electrolytic material and the first positive electrode are arranged in the first conductive crucible; the liquid metal battery is relatively long in cycle life, few in the influences of the outside world and relatively convenient to manage.

The invention discloses a preparation method of oxidation-resistant blueberry bread. The method comprises the following steps of performing grinding on blueberry fruits to obtain blueberry fruit pulp and performing leaching; preparing dry powder; and performing mixing, adding water, and performing fermentation to obtain bread. According to the preparation method disclosed by the invention, blueberry freeze-dried fruit powder is added; blueberry fruit powder is prepared through the following steps of firstly extracting anthocyanidin with edible ethanol under ultrasonic wave condition, then adding malt essence and performing drying to obtain the powder; and finished products of the fruit powder have better drying resistance, fine and smooth qualities and oxidation resistance, when the fruit powder is used for making the bread, the bread is fine, smooth and delicious, and after the bread is exposed to air for a long term, good effects that the bread is not liable to change color, go bad and deteriorate can be achieved.

The present invention provides a micro-invasive intracranial pressure detection system and its application method, belonging to the field of craniocerebral detection technology. Said system includes the following several portions: sensor, electric bridge measurement circuit, signal amplification circuit, phase-sensitive detection circuit, filter circuit, data acquisition circuit, strain correction system, calvaria and dura mater encephalic viscoelasticity processing system, result display, oscillating circuit and power supply, in which the strain correction system and calvaria and dura mater encephalic viscoelasticity processing system are formed into a microcomputer processing system. Besides, said invention also provides the concrete steps of its application method.

The invention provides a solid-liquid separation sewage treatment device which is characterized in that the sewage treatment device comprises a deposition tank positioned on the front end and connected in series with three solid-liquid separation treatment units. Each Solid-liquid separation sewage treatment device is divided into a sewage treatment space and a sludge treatment space by using a sludge-sewage separation bottom plate 8 and a sludge-sewage separation side wall plate 3. An interception device 6 is arranged in the sewage treatment space. At least one deposited sludge side discharge port 9 is arranged at the lower part of the sludge-sewage separation side wall plate 3. The upper surface of the sludge-sewage separation bottom plate 8 is inclined to the deposited sludge side discharge port 9. Rinsing ports 4 are respectively provided on side walls on the two sides corresponding to the sewage treatment space, and are positioned on the side walls above or below the interception material or device 6. Inspection ports 5 are provided on the top plate of the tank bodies of the sewage treatment space and the sludge treatment space. A ventilation hole (pipe) 11 is provided on the upper part of the side wall. With the device and the method, sewage treatment and sludge treatment can be separated, such that the influence on sewage treatment caused by digestion gas and sludge degradation products is reduced, and sewage treatment and sludge reduction treatment can be realized simultaneously.

The invention discloses a fan oscillation control method. The control method comprises the following steps: inputting a DC (Direct Current) PWM (Pulse Width Modulation) signal; converting the DC PWM signal into an AC (Alternating Current) sine signal by adopting a sine pulse width modulation method; according to the AC sine signal, driving an oscillation motor of the fan to control the fan to oscillate. According to the fan oscillation control method disclosed by the invention, electromagnetic noise generated by the oscillation motor can be reduced, efficiency of the oscillation motor is improved, and the oscillation motor is interfered by the outside a little. The invention also discloses a fan oscillation control device and a fan with the same.

The invention discloses a medicine decocting device with a crushing function, relates to the field of medicine auxiliary equipment, and provides the following scheme aiming at the problems that an existing medicine decocting device cannot crush medicinal materials in the decocting process and is large in limitation, high in labor cost and low in working efficiency. The medicine decocting device comprises a tank body, and a sealing cover is arranged at the top end of the tank body; a baffle is fixedly installed on the side, close to the tank body, of the sealing cover; a motor is fixedly installed on the inner side, away from the tank body, of the sealing cover; a rotating shaft is fixedly installed on an output shaft of the side, close to the tank body, of the motor; a bearing is fixedly installed on the side wall of the rotating shaft; the side, away from the motor, of the rotating shaft is connected with a rotating column; the rotating column is embedded in the rotating shaft; smashing and stirring fan blades are installed at the end, away from the rotating shaft, of the rotating column; and a fixed column is installed on the sealing cover. The medicine decocting device with thecrushing function is novel in structure, easy to operate, wide in application range, convenient to maintain and clean, high in stability and good in crushing effect.

The invention discloses a field crop root phenotype acquisition system. The system comprises a first-direction root phenotype acquisition subsystem and a second-direction root phenotype acquisition subsystem which are perpendicular to each other. The first-direction root system phenotype acquisition subsystem can directly acquire overall phenotype data of crop root systems in a root window monitoring mode. The acquisitionmode is fast and convenient. The root phenotype in the second direction can be obtained through the root canal system, the root canal is buried in the ground at different depths, phenotype data of 360 degrees near the crop root system at the depth can be completely obtained, and the detail structure of the crop root system can be conveniently and accurately sampled at different dimensions. Moreover, the root canal is slightly affected by the outside, and data and images of soil moisture and temperature of various plant root systems and growth parameters of crop root systems can be dynamically collected in real time in an all-weather mode.

The invention provides an adjustable steel docking block which comprises a steel base, an adjustable iron wedge block and a lifting support, the steel base comprises a bottom plate, a seat frame, toggle plates and a supporting plate, the seat frame is symmetrically arranged in the center of the bottom plate through side plates, an adjustable iron wedge block rail is arranged in the middle of the seat frame, and the toggle plates are symmetrically arranged at the two sides of the seat frame; the lifting support comprises a top plate, frame plates symmetrically arranged under the top plate frontand back, a supporting plate in the upper portion of the top plate and a plurality of supporting blocks on the supporting plate, the frame plates are matched with the seat frame on the base, and thesupporting blocks are arranged along the edges and the middle of the supporting plate respectively; and the toggle plates are connected with cement piers through connecting pieces. The adjustable steel docking block has the advantages of being simple in structure, convenient to disassemble and assemble, low in cost and high in practicability.

The invention belongs to the technical field of conveying equipment, and particularly discloses an ultra-long-distance large-volume aluminum oxide conveying method and system. Conveying modes are selected according to terrains, a tubular belt conveyor is selected in a long-distance uphill section, and a pneumatic chute system is selected in a downhill section or a gentle section; an air cushion belt conveyor is selected in a short-distance uphill section or for lifting requirements; and a transfer station and a dust removal device are arranged at the joint of the each conveying mode. The ultra-long-distance large-volume aluminum oxide conveying method and system have the beneficial effects that the method and the conveying system are provided, multiple conveying tools are comprehensively utilized, the application of the alumina powder in different terrains is realized by utilizing the combination of different characteristics of the multiple conveying tools, and the problems of ultra-long distance transportation of the alumina powder, flying dust in the transportation process and the like are solved, and the ultra-long-distance large-volume aluminum oxide conveying method and systemhave the characteristics of high efficiency, environment friendliness, high stability, small in suffering external influence and high comprehensive cost performance, and can meet the requirement of large-volume transportation.

The invention discloses a liquid charging device and method based on a hydrostatic level monitoring system, which comprises a plurality of liquid storage tanks that are connected by pipelines in sequence. The liquid charging device comprises a liquid storage device for containing liquid, a submerged pump arranged in the liquid storage device, and a generator, which is connected to the submerged pump through a wire. The water outlet of the submerged pump is provided with a water outlet adapter, which is connected to a water filling pipeline. The liquid charging device carries out liquid charging based on the hydrostatic level monitoring system; the artificial installation speed of hydrostatic level system is accelerated, the construction difficulty is reduced, and the measurement precision of hydrostatic level system is improved. The liquid charging device is suitable for the systems that are used to charge liquid into long-distance pipelines. Because the work efficiency of the provided liquid charging device is high, and no bubble is generated during the liquid charging process, the measurement error caused by bubbles in pipelines is reduced. The liquid charging device is especially suitable for precise liquid monitoring systems.