38results about How to "Strong environmental resistance" patented technology

The present invention discloses a preparation method and application of Bacillus coagulans and a spore preparation cultured in high density, and belongs to the microbe technical field. A Bacillus coagulans strain is classified and named Bacillus coagulans JSSW-LA-07 and is preserved as CGMCC No.2602 in China General Microbiological Culture Collection Center. The Bacillus coagulans strain JSSW-LA-07 can produce spore under an aerobic condition and produce a small amount of L-lactic acid in the metabolism during a course of fermentation. The Bacillus coagulans strain can produce L-lactic acid with a higher purity under an anaerobic condition. The strain does not produce substances which can be harmful to human and cultured animals, has the characteristics of innocuity, on residue, no side effect and the like, has a great significance for production of green and safe livestock, fowls and marine products and improvement of cultivation ecological environment, and can be widely applied in the cultivation production of high yield, high quality, high efficiency, synusiologic and safe livestock, fowls and marine products, and the regulation and control of the ecological environment of cultivation.

A method for producing L-lactic acid by Bacillus coagulans CGMCC No.2602 belongs to the technical field of microorganisms. In the invention, Bacillus coagulans CGMCC No.2602 is adopted, and under the condition of no oxygen supply, starchiness hydrolyzed sugar or dextrose is fermented by a semicontinuous intermittent fermentation way or an inter-sugar-compensating fermentation way to generate L-lactic acid with high optical purity. The invention has the advantages that the gemma property of the Bacillus coagulans is stable, and the L-lactic acid obtained by inoculating and fermenting the starchiness hydrolyzed sugar has high optical purity and rate of conversion of sugar and acid and short fermentation period; in addition, the semicontinuous intermittent fermentation way saves the time for preparing seeds by a continuous reladling and subculturing method, shortens the fermentation period, enhances the fermentation strength and obtains the L-lactic acid with both relatively high rate of conversion of sugar and acid and purity.

The invention discloses a fiber Bragg grating perimeter intrusion pattern recognition method and system. The method comprises the following steps: an external vibration signal which is demodulated through a fiber Bragg grating demodulation instrument is received; when the vibration amplitude of the external vibration signal is greater than a threshold value, whether an abnormal event happens is judged according to preset conditions; if the abnormal event happens, a signal with a fixed time span is intercepted from the external vibration signal, and the intercepted signal with the fixed time span is preprocessed so as to reduce the effects of system noise on a system; a time-domain signal fluctuation extreme value of the preprocessed signal is calculated; the time-domain signal fluctuation extreme value is subjected to curve fitting, and characteristic parameters of a curve after the fitting are extracted; whether the values of the characteristic parameters meet animal touch action or knock action pattern recognition conditions which are set in advance is judged; if the values of the characteristic parameters meet the conditions, pattern recognition information is generated and output to monitoring equipment. The fiber Bragg grating perimeter intrusion pattern recognition method and system can effectively recognize perimeter animal touch events, and is high in sensitivity, strong in resistance to the environment, and low in erroneous recognition rate.

The invention discloses a fiber bragg grating perimeter intrusion behavior identification method and system based on time domain envelopment analysis. The method comprises the following steps of receiving an outside vibration signal demodulated by a fiber bragg grating demodulation instrument; intercepting a signal with a fixed time span when the difference of a fluctuation value of the vibration signal and a preset average value is a specific value; pre-processing the intercepted signal to reduce the influence of system noise to the system; performing Hilbert transformation to the pre-processed signal to obtain a time domain envelope signal; framing the time domain envelope signal and acquiring characteristic parameters of framed time domain envelope signals; performing mode recognition of vibration behaviors according to characteristic parameter values and preset characteristic parameter threshold values; and generating alarm information and sending the information to a linkage device if the characteristic parameter values meet preset alarm conditions. The fiber bragg grating perimeter intrusion behavior identification method and system based on the time domain envelopment analysis is high in sensitivity on recognizing intrusion behaviors, strong in environment-resisting capacity, good in alarm performance and low in false alarm rate.

The invention relates to the field of waterproof roll materials, and particularly relates to a super weather-proof composite waterproof roll material. The super weather-proof composite waterproof roll material comprises a bonding and sealing adhesive layer and an isolating film protection layer, and also comprises a super weather-proof polymeric film layer, wherein the super weather-proof polymeric film layer, the bonding and sealing adhesive layer and the isolating film protection layer are sequentially arranged from top to bottom and are adhered into a whole in a hot pressing way. The hot pressing temperature is 30 to 220 DEG C, includes but is not limited to 30 to 220 DEG C, and can be adjusted according to factors such as specific production equipment and a hot pressing technology. The bonding and sealing adhesive layer is compounded with the a super weather-proof polymeric film structure, so that the structure has high environmental resistance, corrosion resistance, high strength and high toughness, good dimensional stability, and high impact resistance and puncture resistance, does not need to be protected by cement and mortar, and can be constructed in various environments.

The invention discloses a power equipment inspection device based on an RFID (Radio Frequency Identification Device) electronic tag. The power equipment inspection device comprises multiple RFID tags, a handheld inspection terminal, a communication network and a data server located in a monitoring center, wherein the multiple RFID tags are respectively adhered to to-be-inspected power equipment and are used for storing communication information of power equipment in a character string way, and the communication information comprises an ID (Identity), the channel type and the channel parameters of the to-be-inspected power equipment; the handheld inspection terminal is used for reading a character string of the communication information, which is stored in the tags, of the to-be-inspected power equipment, and sending the obtained ID, the obtained channel type and the obtained channel parameters of the to-be-inspected power equipment to the data server through the communication network; the data server is used for receiving and storing inspection data of the power equipment so as to enable each inquire terminal to inquire. According to the power equipment inspection device disclosed by the invention, the inspection data can be transmitted to a management center in time, so that technical staff in the management center can know equipment situations in time, and a technical support is provided for inspection staff.

The invention relates to a flexible solar cell array suitable for a near space super long endurance aircraft, and belongs to the physics power supply technical field; the flexible solar cell array comprises a transparent fluorine containing polymer film, a polyolefin glue film, a cell string, a polyolefin glue film, and a transparent or white polymer film stacked in order from top to bottom; the cell string uses flexible multijunction gallium arsenide cells as generating units, and the cell overlapping contact mode can realize the series-parallel connections between the cells; a bus bar uses silvering copper cores to braid flat flexible cords; the assembly top surface uses the fluorine containing polymer film, and the bottom surface uses the transparent or white polymer film for packaging; a bonding agent employs the hot melt polyolefin glue film; the front side and back side of the cell string are respectively hot melt bonded with the fluorine containing polymer film and / or the white polymer film; the flexible solar cell array is formed by one time high temperature lamination. The flexible solar cell array is firm and reliable, small in quality surface density, high in energy utilization rate, and can be bended and twisted.

PPS film excelling in heat resistance and hydrolysis resistance is used in at least a portion of a seal film for solar cell to thereby not only reinforce the seal film in deterioration by external environment but also inhibit deterioration of the gas barrier property thereof by long-term use having been a problem of the prior art so as to attain environment resisting properties (resistances to heat, hydrolysis, weather, chemical, etc.) of good balance, realizing a seal film markedly excelling in long-term reliability. Further, there is provided a solar cell module utilizing the seal film. The seal film for solar cell module is one comprising a resin film layer having a layer of biaxially oriented film consisting of a resin composition composed mainly of poly-p-phenylene sulfide and comprising a gas barrier layer constituted of at least one member selected from the group consisting of a metal, a metal oxide, an inorganic compound and an organic compound, wherein the longitudinal and width direction heat shrink ratios at 150 DEG C of the seal film for solar cell module both fall within the range of -2.0% to +2.0%, and wherein the absolute value of any difference between the longitudinal and width direction heat shrink ratios at 150 DEG C is 2.0% or below.

The invention discloses a novel inner rotor five-freedom-degree magnetic suspension vertical axis wind turbine which comprises a stator assembly and a rotor assembly. The whole rotor assembly is of an I-shaped structure. The stator assembly comprises first protecting bearings, second protecting bearings, axial magnetic bearing stators, first radial magnetic bearing stators, second radial magnetic bearing stators, a shell and generator stators. The rotor assembly comprises fan blades, a rotary shaft, a first protecting bearing check ring, a second protecting bearing check ring, generator rotors, radial magnetic bearing rotor rings, a spoke-shaped rotor disc, first magnetism insulation rings and second magnetism insulation rings. The novel inner rotor five-freedom-degree magnetic suspension vertical axis wind turbine has the advantages of being free of noise and friction loss, low in the starting wind speed, stable, controllable, and free of lubrication, sealing and the like and further has the advantages of being small in axial length, compact in structure, light in rotor weight, free of magnetic circuit coupling among axial magnetic bearings, radial magnetic bearings and the generator rotors and the like.

The invention discloses a high-temperature resistant slag cleaning and fishing device which mainly comprises a gantry type self-positioning lifting device, a cleaning-scraping-fishing multifunctional rotary pot cover, a two-degree-of-freedom slag pouring manipulator, a rotary stirring slag cleaning device and a self-cleaning-scraping-fishing bucket, wherein the gantry type self-positioning lifting device is arranged above a thermal insulation heating pot; the central top of the cleaning-scraping-fishing multifunctional rotary pot cover is fixed on a rotary support inner ring; a rotary support outer ring is fixed on a positioning rectangular frame of a taper positioning pin on the gantry type self-positioning lifting device; the self-cleaning-scraping-fishing bucket and the rotary stirring slag cleaning device are arranged on the pot cover respectively; and the two-degree-of-freedom slag pouring manipulator is fixed on a cross beam of the gantry. The device disclosed by the invention has the advantages of simple structure, little space occupation, easiness and convenience in operation, low cost, many functions, high efficiency, high environment adaptability and convenience in maintenance and assembly.

The invention discloses a welding quality management system which comprises a welding quality management overall system server, a welding information acquisition system and a nondestructive inspection management system which are in networking connection. According to the welding quality management system disclosed by the invention, under the condition that an original welding machine is not changed, comprehensive online monitoring of actual welding parameters in the welding process is realized by adopting a non-invasive monitoring device and the reforming cost of enterprises is reduced. In addition, a non-invasive sensing acquisition module is suitable for welding machines with different model numbers and parameters and has higher generality; meanwhile, the troublesome of wiring is omitted, and thus the system is convenient to maintain; the welding quality management system has strong ant-jamming capability in a serious industrial field environment; and a user can realize comprehensive sensing of the welding process at lower cost and obtain important process data which cannot be monitored by a traditional mode or technology online.

The invention discloses an environment-friendly and durable sisal bag and a preparation method thereof. The environment-friendly and durable sisal bag comprises raw materials in parts by weight as follows: sisal fibers, shengma fibers, ramie fibers, bamboo fibers, carbon fibers, banana fibers, konjac starch, polyvinyl alcohol, polyvinyl chloride, aromatic particles, negative ion mineral particles, thermoplastic polyurethane, titanium dioxide, laccase, agar, a plasticizer, a surfactant, a plant extract solution and an antibacterial agent. The natural degradable fibers including the sisal fibers, the shengma fibers, the ramie fibers, the bamboo fibers, the carbon fibers and the banana fibers are selected as the main raw materials, the plastic bag can be degraded rapidly in a natural state by means of combined use of titanium dioxide and the laccase, and by means of cooperation with other additives such as the plasticizer, the surfactant and the like, the environment-friendly and durable sisal bag is easy to degrade and has higher environmental resistance, water resistance, durability and antibacterial property.

The present invention discloses a preparation method and application of Bacillus coagulans and a spore preparation cultured in high density, and belongs to the microbe technical field. A Bacillus coagulans strain is classified and named Bacillus coagulans JSSW-LA-07 and is preserved as CGMCC No.2602 in China General Microbiological Culture Collection Center. The Bacillus coagulans strain JSSW-LA-07 can produce spore under an aerobic condition and produce a small amount of L-lactic acid in the metabolism during a course of fermentation. The Bacillus coagulans strain can produce L-lactic acid with a higher purity under an anaerobic condition. The strain does not produce substances which can be harmful to human and cultured animals, has the characteristics of innocuity, on residue, no side effect and the like, has a great significance for production of green and safe livestock, fowls and marine products and improvement of cultivation ecological environment, and can be widely applied in the cultivation production of high yield, high quality, high efficiency, synusiologic and safe livestock, fowls and marine products, and the regulation and control of the ecological environment of cultivation.

The invention provides a special high-strength wear-resistant impact-resistant epoxy repair adhesive for factory floors, and a preparation method and a use method thereof. The epoxy repair adhesive comprises the following components by mass: a component A which is composed of 30-40 parts of bisphenol A epoxy resin, 60-70 parts of quartz powder, 1-3 parts of a leveling agent, 1-3 parts of a dispersant, 1-3 parts of an antifoaming agent and 1-3 parts of white carbon black, and a component B which is composed of 20-40 parts of a modified amine curing agent, 70-80 parts of quartz powder, 1-3 parts of a leveling agent, 1-3 parts of a dispersing agent, 1-3 parts of an antifoaming agent, 1-3 parts of white carbon black, 1-3 parts of a coupling agent, 1-3 parts of a curing accelerator and 1-3 parts of an auxiliary agent. Compared with the prior art, the epoxy repair adhesive has the advantages that the quartz powder, the white carbon black, the curing accelerator and the auxiliary agent are used in a formula, so the epoxy repair adhesive has very strong adhesion capability, relatively high corrosion resistance, water resistance, wear resistance and curing effect, good weather resistance and environment resistance, and capability of repairing floors for a long time.

The invention discloses a fiber bragg grating perimeter intrusion behavior identification method and system based on time domain envelopment analysis. The method comprises the following steps of receiving an outside vibration signal demodulated by a fiber bragg grating demodulation instrument; intercepting a signal with a fixed time span when the difference of a fluctuation value of the vibration signal and a preset average value is a specific value; pre-processing the intercepted signal to reduce the influence of system noise to the system; performing Hilbert transformation to the pre-processed signal to obtain a time domain envelope signal; framing the time domain envelope signal and acquiring characteristic parameters of framed time domain envelope signals; performing mode recognition of vibration behaviors according to characteristic parameter values and preset characteristic parameter threshold values; and generating alarm information and sending the information to a linkage device if the characteristic parameter values meet preset alarm conditions. The fiber bragg grating perimeter intrusion behavior identification method and system based on the time domain envelopment analysis is high in sensitivity on recognizing intrusion behaviors, strong in environment-resisting capacity, good in alarm performance and low in false alarm rate.

The invention relates to a turbine drilling tool bearing block having a permanent magnet bearing, which mainly consists of an upper joint, a connecting shaft, a radial bearing, a permanent magnet bearing group, a lower short block, a bearing block shaft and an outer housing. The permanent magnet bearing group comprises 15 to 25 pairs of permanent magnet bearings; and the permanent magnet bearing consists of a fixed magnetic ring, a movable magnetic ring, a shaft sleeve and an outer housing. The fixed magnetic ring and the outer housing are arranged on the inner wall of the outer housing; the movable magnetic ring and the shaft sleeve are arranged on the bearing block shaft; a structure of the movable magnetic ring, the fixed magnetic ring, the movable magnetic ring and the fixed magnetic ring in a staggered manner is formed is formed on the bearing block in the axial direction; and an axial gap exists between the adjacent planes of the fixed magnetic ring and the movable magnetic ring. The fixed magnetic ring and the movable magnetic ring are made of permanent magnet materials; the fixed magnetic ring and the fixed magnetic ring are magnetized in the axial direction and have opposite magnetizing directions; and the adjacent planes of the fixed magnetic ring and the movable magnetic ring are identical in magnetic pole. The permanent magnet bearing has the characteristics of no friction and no wear, and is simple in structure, convenient to manufacture and install, and long in service life.

The present invention relates to a reception antenna structure of a tire pressure monitoring system. The reception antenna is implemented using a cable-type antenna connected to a receiver of the tire pressure monitoring system. The cable-type antenna enables a mounting position of the antenna to be freely changed and improves a reception rate for measured data about temperature and pressure of a tire, that is modulated into data in the UHF band and transmitted to the outside of the tire in a wireless manner by a transmitter. According to the present invention, the reception antenna of a tire pressure monitoring system is implemented using a radiating leakage coaxial cable so as to enable the position of the antenna to be freely changed, so that, when tire pressure data is measured by a temperature and pressure sensor included in the transmitter within the tire and then transmitted through a tire pressure monitoring transmitter in a wireless manner, the reception sensitivity for the measured data is improved, thus increasing the reliability of the data measured at the tire, and guaranteeing the stability of the tire on the basis of the reliability of the reception sensitivity for the measured data.

The invention provides a highly stable latex paint and a preparation method thereof. The latex paint comprises 20-50 parts of a styrene acrylic emulsion, 2-8 parts of propylene glycol, 8-18 parts of hydroxyethyl cellulose, 7-16 parts of 3-aminopropyltriethoxysilane modified aqueous polyurethane, 5-10 parts of attapulgite, 0.1-2 parts of a mildew inhibition bactericide, 5-8 parts of dibutyl phthalate, 0.1-0.5 parts of an antifoaming agent and 20-55 parts of water. The latex paint has the advantages of simple formula, environmentally-friendly and pollution-free preparation process, strong environment resistance, difficult water separation and good levelability.

A method for producing L-lactic acid by Bacillus coagulans CGMCC No.2602 belongs to the technical field of microorganisms. In the invention, Bacillus coagulans CGMCC No.2602 is adopted, and under the condition of no oxygen supply, starchiness hydrolyzed sugar or dextrose is fermented by a semicontinuous intermittent fermentation way or an inter-sugar-compensating fermentation way to generate L-lactic acid with high optical purity. The invention has the advantages that the gemma property of the Bacillus coagulans is stable, and the L-lactic acid obtained by inoculating and fermenting the starchiness hydrolyzed sugar has high optical purity and rate of conversion of sugar and acid and short fermentation period; in addition, the semicontinuous intermittent fermentation way saves the time forpreparing seeds by a continuous reladling and subculturing method, shortens the fermentation period, enhances the fermentation strength and obtains the L-lactic acid with both relatively high rate ofconversion of sugar and acid and purity.

The invention relates to the field of optical films, and relates to a flexible copper mesh-based touch screen and a preparation method. The flexible copper mesh-based touch screen comprises a flexible copper mesh-based conductive film and an optical cement; the flexible copper mesh-based conductive film comprises a flexible transparent substrate, anti-reflection layers, and a copper mesh conductive layer; the anti-reflection layers are sputtered on an upper surface and a lower surface of a PET substrate, the transmittance of the substrate is improved, the reflected light on the surface is reduced, and then a copper metal conductive composite layer is sputtered on the surface of the anti-reflection layer at one side; the copper metal conductive layer is etched by use of a photolithographic process, thereby preparing a transparent conductive film with high transmittance and low resistance; the optical cement is used for adhering two transparent conductive films with the same structure to enable the copper mesh layer to contact with the optical cement, thereby obtaining an electrode structure for the touch screen. The visible light transmittance of the touch screen disclosed by the invention is higher than 98%, the surface sheet resistance is lower than 6 omega / sq, the chromatic value b* is less than 0.3, the reflectivity of the copper film surface is lower than 4%, and the reflectivity of the copper film back (PET film uncoated film) is less than 5%. And the reflectivity of the touch screen surface is less than 0.5%.

The invention discloses a multichannel connector. The connector comprises a plug and a socket. The plug and the socket are connected in a matching mode. The plug comprises a needle assembly, a first shell, an unlocking sleeve and an elastic component. One end of an outer wall of the first shell is provided with a first marking surface along an outer-wall circumferential direction. The socket comprises a hole assembly, a lining and a second shell. A second marking surface is arranged on an outer wall of one end on the second shell along a circumferential direction, wherein the end matches with the plug. By using the plug and the socket of the connector, through aligning the first marking surface of the plug and the second marking surface of the socket, the plug can be rapidly inserted into the socket, and during dismounting, only one hand needs to held the unlocking sleeve of the plug and the plug can be directly removed. Assembling is stable and dismounting is convenient.

The invention provides a water-vapor separation device with an active drainage function. The water-vapor separation device comprises a vacuum water-vapor separation vessel, wherein a water accumulation membrane is arranged in the vacuum water-vapor separation vessel; one end of a first vacuum tube is communicated with the bottom of the vacuum water-vapor separation vessel, and the other end of thefirst vacuum tube is communicated with the atmosphere; one end of a second vacuum tube is communicated with the lateral part of the vacuum water-vapor separation vessel, and the other end of the second vacuum tube is communicated with a hollow fiber tube; an air inlet end of a second normally closed solenoid valve is communicated with the top of the vacuum water-vapor separation vessel; a first port of a first two-position three-way solenoid valve is communicated with an air outlet end of the second normally closed solenoid valve; an air inlet end of a vacuum pump is communicated with a second port of the first two-position three-way solenoid valve; a second port of a second two-position three-way solenoid valve is communicated with an air outlet end of the vacuum pump; an air inlet end of a second normally open solenoid valve is communicated with a third port of the second two-position three-way solenoid valve; and an air outlet end of the second normally open solenoid valve is communicated with the top of the vacuum water-vapor separation vessel. The water-vapor separation device provided by the invention solves the problems that the accumulated water is quickly discharged and water and vapor are not separated thoroughly.

The invention discloses a fiber Bragg grating perimeter intrusion pattern recognition method and system. The method comprises the following steps: an external vibration signal which is demodulated through a fiber Bragg grating demodulation instrument is received; when the vibration amplitude of the external vibration signal is greater than a threshold value, whether an abnormal event happens is judged according to preset conditions; if the abnormal event happens, a signal with a fixed time span is intercepted from the external vibration signal, and the intercepted signal with the fixed time span is preprocessed so as to reduce the effects of system noise on a system; a time-domain signal fluctuation extreme value of the preprocessed signal is calculated; the time-domain signal fluctuation extreme value is subjected to curve fitting, and characteristic parameters of a curve after the fitting are extracted; whether the values of the characteristic parameters meet animal touch action or knock action pattern recognition conditions which are set in advance is judged; if the values of the characteristic parameters meet the conditions, pattern recognition information is generated and output to monitoring equipment. The fiber Bragg grating perimeter intrusion pattern recognition method and system can effectively recognize perimeter animal touch events, and is high in sensitivity, strong in resistance to the environment, and low in erroneous recognition rate.

The invention discloses a novel inner rotor five-freedom-degree magnetic suspension vertical axis wind turbine which comprises a stator assembly and a rotor assembly. The whole rotor assembly is of an I-shaped structure. The stator assembly comprises first protecting bearings, second protecting bearings, axial magnetic bearing stators, first radial magnetic bearing stators, second radial magnetic bearing stators, a shell and generator stators. The rotor assembly comprises fan blades, a rotary shaft, a first protecting bearing check ring, a second protecting bearing check ring, generator rotors, radial magnetic bearing rotor rings, a spoke-shaped rotor disc, first magnetism insulation rings and second magnetism insulation rings. The novel inner rotor five-freedom-degree magnetic suspension vertical axis wind turbine has the advantages of being free of noise and friction loss, low in the starting wind speed, stable, controllable, and free of lubrication, sealing and the like and further has the advantages of being small in axial length, compact in structure, light in rotor weight, free of magnetic circuit coupling among axial magnetic bearings, radial magnetic bearings and the generator rotors and the like.

The invention discloses a high-temperature resistant slag cleaning and fishing device which mainly comprises a gantry type self-positioning lifting device, a cleaning-scraping-fishing multifunctional rotary pot cover, a two-degree-of-freedom slag pouring manipulator, a rotary stirring slag cleaning device and a self-cleaning-scraping-fishing bucket, wherein the gantry type self-positioning lifting device is arranged above a thermal insulation heating pot; the central top of the cleaning-scraping-fishing multifunctional rotary pot cover is fixed on a rotary support inner ring; a rotary support outer ring is fixed on a positioning rectangular frame of a taper positioning pin on the gantry type self-positioning lifting device; the self-cleaning-scraping-fishing bucket and the rotary stirring slag cleaning device are arranged on the pot cover respectively; and the two-degree-of-freedom slag pouring manipulator is fixed on a cross beam of the gantry. The device disclosed by the invention has the advantages of simple structure, little space occupation, easiness and convenience in operation, low cost, many functions, high efficiency, high environment adaptability and convenience in maintenance and assembly.

The invention discloses a metal flexible accelerometer. The metal flexible accelerometer comprises a housing, a seat body arranged on the housing, a flexible pendulum assembly, a magnetic steel assembly and pole plates which are installed on the seat body, and an insulator assembly connected to the seat body in a sealed manner. The flexible pendulum assembly comprises a flexible pendulum sheet and a sensitive mass block, the flexible pendulum sheet and the sensitive mass block are connected through a slot manner, and a flexible fine neck on the flexible pendulum sheet is used for supporting the sensitive mass block. The magnetic steel assembly is placed in a magnetic steel pot-shaped cavity of the seat body and is pasted on the seat body. The pole plates comprise an upper pole plate and a lower pole plate, and the pole plates and a signal detection sheet form a signal detection device. Combined with the advantages of a servo pendulum accelerometer and a quartz flexible accelerometer, such as high precision, fast starting and low power, the metal flexible accelerometer realizes the advantages of small size, high precision and high environment resistance. The metal flexible accelerometer is especially applicable to an inertial navigation system high in precision, size, weight, starting time, impact resistance and environment resistance requirements.

The invention relates to the field of optical thin films, and relates to a flexible copper grid-based touch screen and a preparation method. Flexible copper grid-based conductive film and optical glue, the flexible copper grid-based conductive film includes a flexible transparent substrate, an anti-reflection and anti-reflection layer, and a copper grid conductive layer; The anti-reflection layer improves the transmittance of the substrate and reduces the reflected light on the surface, and then sputters a copper metal conductive composite layer on the surface of the anti-reflection and anti-reflection layer on one side; the copper metal conductive layer is etched by photolithography Prepare a transparent conductive film with high transmittance and low resistance; use optical glue to bond two transparent conductive films with the same structure, make the copper grid layer contact with the optical glue, and obtain an electrode structure for a touch screen. The visible light transmittance of the present invention is higher than 98%, the surface square resistance is lower than 6Ω / □, the chromaticity value b* is less than 0.3, the reflectivity of the copper film surface is lower than 4%, and the copper film backside (PET film is not coated film measurement) The reflectivity is less than 5%. The reflectivity of the touch screen surface is lower than 0.5%.

The invention discloses a search-for-imaging cable including a cable wire core, a filling cotton rope, an inner sheath wrapping the wire core and the filling cotton rope, a fiber reinforced compositeplastic strip, a fiber braiding layer and an outer sheath wrapping the fiber reinforced composite plastic strip from inside out in sequence. By the use of the fiber reinforced composite plastic strip,the finished product cable can have higher tenacity, so that problems of a conventional cable of twisting and knotting during use can be solved. Besides, the fiber reinforced composite plastic stripis low in self weight, good in insulation performance and good in environment resistance, so that the environment resistance of the cable can be improved. Also, adaptive adjustment on the structure ofthe search-for-imaging cable can be performed by utilizing the quantity of the fiber reinforced composite plastic strip, so that integral structural stability can be maintained and the adaptability of the search-for-imaging data is enhanced. At the same time, by adopting the TPU as the outer sheath, the cable has characteristics of good wear resistance, good oil resistance and good elasticity andthe like, is suitable for complex occasions including an underground pipe network and the like, and the service life of the cable is prolonged.

The invention provides a low-smoke halogen-free ultraviolet-proof variable frequency cable, wherein a cable core is formed with main wire cores, protective wire cores located in the gapes of the main wire cores and PP (Polypropylene) ropes arranged in rest gaps, and orderly covered with a first wrapping layer, a copper braid shielding layer, a second wrapping layer, a copper strip wrapped shielding layer, a third wrapping layer and a low-smoke halogen-free outer sheath layer. Due to the adoption of two layers of shielding structures, the low-smoke halogen-free ultraviolet-proof variable frequency cable is low in transmission impedance and good in outside electromagnetic interference elimination effect, in combination with the design of the second wrapping layer and the third wrapping layer, the noise of a variable frequency motor can be reduced, due to the design of a category soft conductor structure, the cable is enabled to have good bending property, and due to the adoption of the ratproof, anti-ant and ultraviolet-proof low-smoke halogen-free polyolefin sheath, the cable is enabled to have strong environmental resisting capability; besides, the 3+3 cable core structure with three main wire cores and three protective wire cores is stable, compact, and high in resistance to impact of transformer generated impulse voltage.

PPS film excelling in heat resistance and hydrolysis resistance is used in at least a portion of a seal film for solar cell to thereby not only reinforce the seal film in deterioration by external environment but also inhibit deterioration of the gas barrier property thereof by long-term use having been a problem of the prior art so as to attain environment resisting properties (resistances to heat, hydrolysis, weather, chemical, etc.) of good balance, realizing a seal film markedly excelling in long-term reliability. Further, there is provided a solar cell module utilizing the seal film. Theseal film for solar cell module is one comprising a resin film layer having a layer of biaxially oriented film consisting of a resin composition composed mainly of poly-p-phenylene sulfide and comprising a gas barrier layer constituted of at least one member selected from the group consisting of a metal, a metal oxide, an inorganic compound and an organic compound, wherein the longitudinal and width direction heat shrink ratios at 150 DEG C of the seal film for solar cell module both fall within the range of -2.0% to +2.0%, and wherein the absolute value of any difference between the longitudinal and width direction heat shrink ratios at 150 DEG C is 2.0% or below.