44results about How to "Not subject to electromagnetic interference" patented technology

The invention discloses a large-scale alteration lithofacies positioning predicating method for a hydrothermal deposit. Deep deposit or ore body direct positioning predicating is conducted through working procedures of an ore-forming structure elaborate analyzing and alteration lithofacies mapping stage, an alteration lithofacies zoning stage and a buried ore positioning predicating stage. According to the method, the problem that deep buried ore bodies are difficult to predicate due to strong abnormity multiplicity and difficult full spatial domain positioning of a conventional objectifying prospecting method is solved.

The invention relates to an integrated platform management system for the dredging of a trailing suction hopper dredger, in particular to an integrated platform management system based on a redundant network. The system comprises network switch, a server, a plurality of workstations, a PLC and a gateway which are respectively connected with a bottom ring network, and a top ring network; the PLC is used for realizing the control on the input and the output of field-working devices of a dredger, the gateway is used for realizing the conversion between the third protocol and the TCP/IP protocol, the PLC and the gateway are respectively connected with the bottom ring network through the network switch; the workstations for managing and monitoring data are connected with the top ring network through the network switch; and the server is connected with the bottom ring network and the top ring network through network switches arranged on the bottom ring net and the top ring net. The invention realizes the full sharing of the whole ship information resource and improves the system reliability.

The invention discloses a measuring device and a measuring method for target-hitting moments. Optical fiber sensors are respectively composed of a single sensing optical fiber, are arranged in a target in a reciprocating mode and cover the target surface area of the target, and the arrangement distance between the optical fiber sensors is smaller than the diameter of an area formed by target hitting of test bullets; optical signals emitted by a light source are transmitted to a photoelectric detector through the optical fiber sensors, converted into electric signals through the photoelectric detector and input into an information collecting and processing module after undergoing signal processing; a time service module obtains the current time information for being used by the information collecting and processing module; when the on-off state signals of the optical fibers are changed to 0 indicating the non-light transmission state from 1 indicating the light transmission state, the time information in the time service module is read and serves as the target-hitting moment. The device and the method can accurately measure the target-hitting moments of the test bullets and can serve as auxiliary analysis means of other range measuring modes, and the extraction efficiency of effective data can be improved. According to the implementation scheme, the method has the advantages that the cost is low, the response speed is high, the measurement accuracy is high, the reliability is high, installing and laying are simple and the anti-jamming capability is high.

Provided is a pollution-free transfer synchronous release system for a giant airship, comprising a communication system, a central control computer, a pollution-free release vehicle device, a tether module, and a synchronous cutting system. The central control computer controls the operation of the non-polluting release vehicle device through the communication system, The central control computercontrols the tether module to adjust the length and tension of the tether rope through the communication system, and the central control computer also sends instructions to the synchronous cutting master controller in all the tether modules through the communication system to control the corresponding cutter through the cutting driver to realize the synchronous cutting of all the tether rope. Theinvention ensures that the relative positions of a plurality of tethered modules remain unchanged, and the incongruity caused by manually driving independent tethered module carriers is avoided, so asto ensure the safety and reliability of the giant airship in the process of releasing and transporting. Moreover, the synchronous cutting system in each tether module is controlled by the central control computer, which ensures the synchronous cutting of multiple tether ropes when the airship is released, and avoids tearing of the airship and other phenomena.

The invention discloses a movement sensing device, an movement sensing method and a VR (virtual reality) handle. The movement sensing device comprises a cavity, a first electrode, a second electrode, electrolyte and a processor. The cavity forms a closed space; the first electrode is arranged on the bottom wall of the cavity; the second electrode is arranged on the side wall and comprises electric contacts arranged densely; the electrolyte is contained in the cavity, and a space is formed between the liquid level of the electrolyte and the top wall of the cavity. The processor is arranged on the cavity and is electrically connected with the second electrode. Through the method, a function of movement sensing is realized, particularly micro movement can be sensed, and the movement sensing device is less prone to magnetic field interference during operation.

The invention belongs to the technical field of electromagnetic switches, and discloses a dielectric array switch. The switch comprises a pedestal, a medium array composed of M*N dielectric cylindersand arranged on the pedestal and heating components arranged at two sides of the dielectric array; the portion among the dielectric cylinders of the dielectric array is filled with a substance with alow melting point and strong liquidity after melting; when the dielectric array switch works, an incident wave is emitted from the direction parallel to the pedestal to heat the filler; when a heatingtemperature reaches the melting point of the filler, the filler is melted, the filler among the dielectric cylinders is environmental gas, so that dielectric constants of cylinder bodies of the dielectric cylinders are changed, transmissivity of the dielectric array switch to a electromagnetic wave of a certain wave band is changed, and the switch functions that the electromagnetic wave is allowed to pass through or is cut off are achieved; the dielectric array switch can prevent external electromagnetic waves from passing through, cannot be affected by external electromagnetic wave interference, and has good anti-interference performance, is applicable to communication wave bands and infrared wave bands, is extremely wide in application wavelength coverage, has significant switch performance, and is high in stability.

The invention discloses a position measuring method for a pole-mounted transformer. The position measuring method comprises the steps that 1, a first pilot testing point position is measured, wherein an auxiliary measuring device is adopted for measuring the first pilot testing point position below one side of the pole-mounted transformer, the auxiliary measuring device is installed, the first pilot testing point position is determined and measured, and the distance from a first pilot testing point to a point to be measured is determined; the auxiliary measuring device comprises V-shaped measuring scales and centering rods installed at the bottoms of the V-shaped measuring scales, and the two measuring scales are telescopic rulers; 2, a second pilot testing point position is measured, wherein the auxiliary measuring device is installed, the second pilot testing point position is determined, the second pilot testing point position is measured, and the distance from a second pilot testing point to the point to be measured is determined; 3, the position of the pole-mounted transformer is determined. According to the method, the steps are simple, design is reasonable, operation is simple, safe and reliable, the measurement result is accurate, and the problems that use and operation are not changed, the danger coefficient is high and the measurement result is inaccurate when an existing pole-mounted transformer position measuring method is used can be solved.

The invention discloses an expansion valve throttling structure and a heat pump system containing the same. The expansion valve throttling structure comprises a first main pipe (10) and a second main pipe (20), a first expansion pipeline (30) and a second expansion pipeline (40), the first expansion pipeline (30) comprises a first heating power expansion valve (31) and a first control valve (32), the first heating power expansion valve (31) and the first control valve (32) are connected in series, the second expansion pipeline (40) comprises a second heating power expansion valve (41) and a second control valve (42), and the second heating power expansion valve (41) and the second control valve (42) are connected in series. The first expansion pipeline (30) and the second expansion pipeline (40) are arranged in parallel; in a refrigeration state, the first expansion pipeline (30) is connected, and the second expansion pipeline (40) is disconnected; in a heating state, the first expansion pipeline (30) is disconnected, and the second expansion pipeline (40) is connected. The expansion valve throttling structure is simple, convenient to machine, stable, reliable and capable of adjusting the throttling function flexibly.

The invention provides a vibrating type viscometer and a liquid viscosity detection method thereof. The vibrating type viscometer comprises a fixing part, a vibrating elastic piece, a distance sensor,a driving device, a temperature detection device and a controller, wherein the distance sensor is located in the position, located between a fixed end and a free end of the vibrating elastic piece and close to the free end, on the fixing part, and after the free end of the vibrating elastic piece approaches the distance sensor for preset displacement, the distance sensor is triggered to be switched from one working state to another working state and electrical signals are sent out; the driving device comprises a driving circuit and a main driving body, and the driving circuit is controlled bythe controller and supplies a preset resonant frequency signal to the main driving body; the temperature detection device is used for detecting temperature of a detected sample; the controller is connected with the distance sensor and the driving device and used for keeping vibrational frequency of the driving device constant and collecting time intervals of the electrical signals of the distancesensor and temperature data of the sample. The vibrating type viscometer has the advantages that electromagnetic interference is avoided and a test result is stable.

The invention relates to a multi-path 1553B bus optical fiber relay device and a multi-path 1553B bus optical fiber relay method, and belongs to the technical field of computer communication 1553 buses. According to the invention, multi-path 1553B bus relaying is realized. A relaying scheme can be provided for at most four paths of 1553B buses or four redundant 1553B buses, the communication distance is increased, and the number and the weight of cables are reduced. According to the invention, different signal states and half-duplex states of the four 1553B buses can be effectively distinguished and realized, the scheme is simple, and the realizability is strong. According to the invention, the multi-path 1553B bus relay method and the multi-path 1553B bus relay device are realized by onlyusing two optical fibers, so that the method and the device are economical and efficient. According to the invention, a method for realizing multi-path 1553B bus relay by only using two optical fibers is adopted, so that the weight of the cable is reduced, the cable is not interfered by electromagnetic interference, and the transmission distance is greatly increased.

The invention discloses a time measuring device and method after a target projectile is intercepted and impacted. The time measuring device comprises a light emitting unit, an optic fiber sensing network, a photoelectric detecting unit, a data collecting and processing unit and a calculating module; the light emitting unit emits a light signal; the optic fiber sensing network transmits the light signal to the photoelectric detecting unit; the photoelectric detecting unit converts the light signal into an electrical signal and outputs the light-transmission state; according to the light-transmission state, the data collecting and processing unit reports the data frame matched with the light-transmission state in the fixed time interval Tau; and the survival time T1 and the hit moment T2 ofthe target projectile in the collision process are calculated according to the type and quantity of the data frame by the calculating module. According to the time measuring device and method after the target projectile is intercepted and impacted, calculation of the survival time and the hit moment of the target projectile are realized, and the time measuring device and method has the advantagesof being wide in frequency bandwidth, free from electromagnetic wave interference, small in size, small in weight, high in winding, resisting in corrosion and low in cost, measuring for the target projectile in the interception process is complete and comprehensive, and supporting for inversion of the damage process is provided.