13 results about "Charged body" patented technology

The invention discloses a charged body flight path sensing method based on an electrostatic induction principle. The charged body flight path sensing method comprises the following steps: capturing an electrostatic field signal generated by a flying charged body through a hemispherical electrostatic induction electrode array; each detection electrode is composed of an induction plate, an insulation substrate and a shielding electrode, the space directivity of the induction plate is effectively improved, and lateral electrostatic field interference is reduced. And an amplification circuit in the rear-stage high-resistance antistatic sensor independently amplifies signals of each detection electrode, and digitally acquires the signals through a multi-channel oscilloscope. A multi-gene symbol regression method is combined with a genetic algorithm and a linear least square method, a mathematical expression is optimized to minimize a prediction and target output error, and a circumference absolute error between a prediction value and a target value is calculated. And finally, filtering and demigration processing are carried out on the collected signals, the time difference of signal peak moments is mined, a time characteristic value data set of the flight path is constructed, and accurate data support is provided for analysis of the flight path of the electrified body.

The invention discloses a non-contact moving object charge measurement method based on a mutual capacitance matrix, and belongs to the technical field of electrostatic detection. According to the invention, a physical model for charge measurement is constructed, a capacitance matrix is established by using a mirror image principle, a mutual capacitance value between a measured charged body and an induction electrode is solved by using a mirror image method, a circuit model for non-contact charge measurement is constructed, and the charge of the measured charged body is measured by using the model. Compared with a measurement method based on an electrometer, the non-contact type charge quantity measurement method has the advantages that the charge quantity of the to-be-measured charged body is not changed in the measurement process, repeated measurement is facilitated, and compared with an existing detection method based on an electric field sensor and the electric field change rate, a mathematical model for non-contact type charge quantity measurement is established; the corresponding relation between the charge quantity of the detected charged body and the amplitude of the electrostatic signal is accurately represented, and the method has a good application prospect in the field of electrostatic detection.

It suppresses the increase in electrical resistance of charged objects. [Solution] The charging device 34 includes a charging roll 40, which is an example of a charging body, that rotates in contact with a photoreceptor 32, which is an example of an object to be charged, to charge the object to be charged, and a cleaning brush 50, which is an example of a cleaning body, that contacts the charged object to clean the charged object and has a contact pressure of 0.01 N / cm or more and 0.05 N / cm or less on the charged object.

The present invention discloses an intelligent directional electroscope, comprising an electroscope and an adjustable pan-tilt platform. The electroscope comprises an insulating housing, a detection antenna disposed at the upper end of the insulating housing, a display screen embedded in the side of the housing, and a host module disposed at the inner end of the housing. The adjustable pan-tilt platform is fixedly connected to the bottom of the insulating housing and is controlled by the host module. The adjustable pan-tilt platform adjusts the direction of the electroscope according to the direction of the magnetic field and determines the charge condition around the charged object based on the angular difference between the direction of the electroscope and the charged object. The electroscope detects and calculates the electromagnetic signal of the electroscope, and drives the adjustable pan-tilt platform to adjust the direction of the electroscope and issue an alarm based on the electromagnetic signal. The deviation between the direction of the electroscope and the charged object determines whether there are other charged objects around the charged object, and the approximate location of the remaining charged objects is determined based on the direction of the electroscope, providing a safety warning for on-site test personnel and directional guidance for further searches.

The invention relates to the technical field of magnetizing fixtures, and discloses a multi-stage magnetizing fixture with an anti-creeping structure, the multi-stage magnetizing fixture comprises a multi-stage magnetizer body and a fixture body provided with a magnetizing member, when the multi-stage magnetizer body leaks electricity, the anti-creeping assembly is arranged, so that the multi-stage magnetizing fixture with the anti-creeping structure is provided with the anti-creeping structure; current on the clamp body can be grounded and guided through the side face and the bottom, the clamp body is electrified when insulation damage or line aging occurs in the working process of part of the magnetizer, leakage current can be directly led to the ground along the shortest path through the side face and bottom double grounding design, and electric shock accidents caused when operators make contact with electrified bodies are avoided. Meanwhile, the three large-resistance-value resistance blocks and the small-resistance-value resistance block are arranged on the clamp body, so that when one side close to the three large-resistance-value resistance blocks is touched manually, due to the fact that the resistance values of the three large-resistance-value resistance blocks are large, the problem that the body of an operator is injured due to large current can be prevented, and the safety of the operator is improved. And the safety is ensured to a certain extent.

The application discloses an electrostatic induction electrode array system simulating a shark electroreceptor organ, which comprises a charged target, an electrostatic field and a hemispherical electrostatic induction electrode array, wherein a detection electrode of the hemispherical electrostatic induction electrode array comprises a cylinder structure composed of an induction plate, an insulating substrate and a shielding electrode, the inside bottom end of the cylinder structure is the induction plate in the shape of a circular plate, the induction plate is used for sensing the space electrostatic field and is connected to a signal input end of an electrostatic sensor, the insulating substrate is used for electrically separating the induction plate from the shielding electrode, the shielding electrode is connected to a power supply ground of the electrostatic sensor and is used for blocking the influence of the lateral electrostatic field on the induction plate, the detection electrode obtains a current value of the charged target, and the current value is used for representing an electrostatic signal generated when the detection electrode passes through the charged target. The application realizes a high spatial resolution electrostatic field sensor, can improve the sensing area and the spatial resolution of a space electrostatic field of an unmanned platform, and accurately senses the attack direction of a flying charged body.

The application discloses a kind of flying charged electrostatic induction signal data set collection construction methods, including: including induction plate, insulating substrate and shielding electrode.Arranged in array on hemispherical shell, central axis points to the center of sphere, normal electrode inclination angle is 0 °.Experiment includes center point and area sweep mode, records four-way electrostatic induction signal.Using 20KHz sampling rate multichannel digital oscilloscope synchronous recording signal, carries out filtering and offset processing.Obtain time characteristic value data set by the time difference of signal peak time moment excavates flight trajectory information.The application can effectively capture the electrostatic field signal generated by flying charged body, provides data basis for analysis and application.

This invention discloses a shaped charge for slotting and its blasting method, relating to the field of rock tunnel blasting technology. It facilitates the avoidance of "waste" of explosive energy within the blast holes in the slotting area, thereby improving slotting efficiency and blasting construction quality, and enhancing the rock-breaking effect of slotting blasting. The shaped charge includes: a charge body, which is a tubular structure with a hollow portion, the axial hollow surrounding portion of the tubular structure forming an internal chamber, and multiple axial grooves on the sidewall of the tubular structure; explosive, filling the internal chamber of the charge body; and a shaped charge component, having an outer surface adapted to the inner contour of the grooves, correspondingly engaging with the grooves, with the inner end of the shaped charge component pressing against the outer surface of the explosive. This invention is applicable to rock tunnel blasting scenarios.

The invention relates to the technical field of explosive materials, in particular to an emulsion explosive linear shaped charge device based on interface layer impedance matching and an assembling method of the emulsion explosive linear shaped charge device. The shaped charge device comprises an emulsion explosive charge body, a metal shaped charge cover and a composite interface layer, the composite interface layer is arranged between the emulsion explosive charge body and the metal shaped charge cover, and the composite interface layer is formed by compounding metal powder and a polymer binder according to the mass ratio of 7: 3-9: 1. According to the technical scheme, the detonation energy transfer efficiency and the jet cutting performance are improved through interface layer impedance matching and microstructure interlocking design, efficient transfer of detonation energy and remarkable improvement of the jet cutting performance are achieved, and efficient shaped charge cutting based on emulsion explosives is achieved.

To provide a power generation element that is easy to manufacture and capable of improving power generation performance. [Solution] The present invention relates to a power generation element comprising two electrodes spaced apart from each other, and a charged body placed in contact between the two electrodes, wherein the charged body includes a positively charged layer and a negatively charged layer in surface contact with the positively charged layer, and the positively charged layer includes rubber as a matrix material and a conductive filler with higher conductivity than the rubber.

This invention discloses an adjustable local electric field generating device. The main body of the electric field generating device is mounted on a displacement frame. First, second, third, and fourth electrode plates are all mounted within the main body frame, which is itself mounted on the displacement frame. The first, second, third, and fourth electrode plates are electrically connected to an external dual-channel DC voltage source, which is in turn electrically connected to two external continuously adjustable DC boost modules. This invention provides a convenient device for assembly, movement, and disassembly. The magnitude, position, and direction of the generated local electric field can be flexibly adjusted according to actual engineering needs. It can apply an adjustable local electric field in the direction of movement of a charged body, meeting the requirements for generating different local electric fields in different time domains. It is also very easy to operate and adjust, avoiding interference between the electric field generating device components and the movement of the charged body, and enabling precise control of the shape, velocity, and position of the charged body.

The application discloses a space target direction identification algorithm based on an array type electrostatic detector and belongs to the technical field of space target detection. The application detects space potential by deploying an electrostatic detector electrode array on the surface of a spacecraft, obtains local electric field distribution through a space interpolation method, obtains an equipotential line by connecting a point with the same potential as the potential of a center point of the electrode array region, solves the equation of an equipotential circle where the center point is located according to the coordinates of each point on the equipotential line, determines the direction of the charge center of a target charged body, and realizes non-contact detection of space targets such as micro space debris in the environment of the spacecraft.

A potential difference measurement device (101) comprises: a light source (1); a semiconductor optical element (3) in which free carriers generated by the presence of charged particles absorb incident light incident from the light source (1), thereby reducing the intensity of emitted light that is emitted, relative to the intensity of the incident light; a detector (5) that detects the intensity of the emitted light; and a calculation unit (6) that calculates the intensity difference of the emitted light between before and after the reduction. The intensity difference varies according to the potential difference between outer space and a charged body (10) charged by the charged particles. The calculation unit (6) measures the potential difference by calculating the intensity difference in a state in which the semiconductor optical element (3) is disposed on the charged body (10) and the surface potential of the semiconductor optical element (3) is set to the same potential as the potential of the charged body (10) or to a potential having a predetermined potential difference with the potential of the charged body (10).