39 results about "Fiber source" patented technology

The present invention relates to a modified citrus fiber product, wherein the modified citrus fiber product has a gel strength of from 30 SAG to 100 SAG and a degree of esterification of from 30% to 100%. The invention also relates to a method for producing said modified citrus fiber product. The present invention avoids the use of an activation step involving the conversion of trapped water-insoluble pectin to free water-soluble pectin using chemicals (e.g., acids) while still obtaining a suitable amount of free water-soluble pectin to produce a citrus fiber product having a gel strength (SAG) of between 30 SAG and 100 SAG. Avoiding such an activation step ensures that the intrinsic factors of the pectin contained in the modified citrus fiber product are comparable to those found in the natural citrus fiber source.

The invention discloses functional composite fiber supplement granules for sows in the perinatal period as well as a preparation method and application thereof, relates to the technical field of feeds, and solves the problems that a single fiber raw material is poor in effect and palatability and cannot accurately regulate and control intestinal health of the sows in the perinatal period. Comprising the following raw materials in percentage by weight: 30-60% of soluble fiber; 25%-45% of insoluble fibers; 5%-15% of an adhesive and energy agent; 9.2%-23% of a functional additive and 0.5%-1.5% of a lubricant And unavoidable impurities. By scientifically compounding a plurality of specific fiber sources and functional additives, the feed can achieve the following effects: (1) the constipation condition of the sows in the perinatal period can be obviously improved; (2) regulating the balance of intestinal flora, inhibiting inflammation and enhancing the oxidation resistance of the body; (3) the feed intake of the sows in the perinatal period is increased, and postpartum recovery and lactation performance are promoted.

The invention relates to a miniaturized near-infrared spectrometer imaging system, which relates to the field of near-infrared spectrometers, and comprises a light source module, a sample light generation module, an optical fiber coupler, an optical fiber F-P filter, a photoelectric detector and a multimode optical fiber, light rays generated by the light source module can irradiate a sample through the sample light ray generation module and generate sample light rays, the optical fiber coupler and the optical fiber F-P filter are connected through multimode optical fibers, the optical fiber F-P filter and the photoelectric detector are connected through multimode optical fibers, and the optical fiber coupler receives sample optical fibers; and the signal is transmitted to the photoelectric detector through the multimode optical fiber, the optical fiber F-P filter and the multimode optical fiber. According to the invention, the baseline drift and noise of the spectrum are reduced, the accuracy of the spectrum is improved, the size is smaller, and the weight is lighter.

This invention discloses a high-speed sweeping fiber optic light source. The specific device includes: a mode-locked pulse light source, an optical fiber amplifier, a highly nonlinear optical fiber, and a dispersion-compensating optical fiber. The passively mode-locked pulse light source outputs a high repetition rate, wide-spectrum mode-locked pulse. Its dispersion propagation follows a parabolic differential equation similar to one-dimensional paraxial diffraction, analogous to Fraunhofer diffraction. The pulse is amplified outside the cavity by an optical fiber amplifier to increase the laser pulse energy and peak power. Then, it is broadened by the highly nonlinear optical fiber to obtain a supercontinuum light source. Finally, the pulse is stretched by a highly dispersive medium provided by the dispersive optical fiber, and the pulse frequency domain spectrum is mapped to a time domain waveform, thereby realizing a high-speed sweeping frequency light source in the time domain.

A fusion splicer according to one embodiment includes an optical fiber holder that holds an optical fiber; a rotation mechanism that rotates the optical fiber holder about a central axis extending along the optical fiber; a clamp portion that is disposed on a side opposite the rotation mechanism with respect to the optical fiber holder, and that presses the optical fiber held by the optical fiber holder; a light source that is disposed above the optical fiber holder, and that irradiates a portion of the optical fiber with light, the portion being pressed by the clamp portion; and an electric power supply portion that supplies electric power to the light source. A tip of the optical fiber protrudes from the clamp portion, and at least a part of a surface of the clamp portion facing the optical fiber is a highly reflective surface.

A cooking method and a digester system wherein partly digested cellulosic fiber source is compressed during cooking to provide high molecular weight xylan, high molecular weight lignin and pulp.

The utility model relates to light source structure technical field discloses a kind of plane shadowless light source and visual inspection device, including support frame, fiber-optic light source, light guide optical fiber and install light guide plate in the support frame;The top surface of the light guide plate is arrayed with printing dots, and the printing dots include a reflective dot layer attached to the light guide plate and a light-absorbing dot layer disposed on one side of the top of the reflective dot layer;One end of the light guide optical fiber is connected to the fiber-optic light source, and the other end is mounted on the support frame to emit light rays to the outer peripheral surface of the light guide plate. The light rays emitted from the light guide optical fiber pass through the outer peripheral surface of the light guide plate and enter the light guide plate. The plane shadowless light source and visual inspection device of the utility model can improve the light brightness and can be installed in a narrow space to emit light normally.

This application provides a communication node and an optical communication network, belonging to the field of optical communication technology. The communication node includes a light source module, a link splitting module, and an optical transceiver module. The light source module provides local oscillator light and signal light to the optical transceiver module; the link splitting module receives downlink signals from the optical fiber, splits the downlink signals into N sub-downlink signals, and sends one sub-downlink signal to the optical transceiver module and the next node respectively, where N is a positive integer greater than 1; the optical transceiver module, based on the local oscillator light, obtains a signal with a wavelength matching the local oscillator light from the received downlink signals; it also generates an uplink signal with a wavelength different from the downlink signal based on the signal light, and sends the uplink signal to the optical fiber through the link splitting module. The uplink signal and the received downlink signal are transmitted in the same optical fiber but in opposite directions, saving optical fiber costs and fiber sourcing costs.

A fusion splicer according to one embodiment includes an optical fiber holder that holds an optical fiber; a rotation mechanism that rotates the optical fiber holder about a central axis extending along the optical fiber; a clamp portion that is disposed on a side opposite the rotation mechanism with respect to the optical fiber holder, and that presses the optical fiber held by the optical fiber holder; a light source that irradiates the clamp portion with light; and an electric power supply portion that supplies electric power to the light source. A tip of the optical fiber protrudes from the clamp portion. The clamp portion includes a transparent portion that is transparent to the light, and that transmits the light to the optical fiber.

The invention relates to the technical field of livestock breeding and animal nutrition, in particular to fattening pig feed and application thereof.The fattening pig feed is prepared from, by weight, 50 parts of corn flour, 19-21 parts of concentrated feed, 9-11 parts of wheat bran and 20 parts of wild buckwheat straw powder. According to the formula, the wild buckwheat straw is used as a functional fiber source, through scientific matching and synergistic effect with conventional energy raw materials, the micro-ecological structure of the intestinal tract of the fattening pig is effectively optimized, enrichment of beneficial microbial communities such as lactobacilli in the phylum firmicalis is promoted, and therefore the steady state of the intestinal tract can be maintained. Meanwhile, in the liver of the fattening pigs fed with the formula, expression of various genes related to extracellular matrix structures and tissue homeostasis is up-regulated, and support is provided for tissue structure maintenance and healthy growth. The method provides a feasible path for resource utilization of wild buckwheat straws, and has double benefits of breeding health promotion and agricultural byproduct value increase.

The invention discloses a dynamic monitoring lens surface defect detector, which belongs to the field of optical detection and comprises an optical fiber light source, an optical fiber beam splitter body is arranged below the optical fiber light source, an optical fiber connector is arranged below the optical fiber beam splitter body, a convex mirror or a concave mirror is arranged on the left side of the optical fiber connector, and the convex mirror or the concave mirror is arranged on the right side of the optical fiber connector. A convex mirror or a concave mirror is arranged on the left side of the base, a mirror to be measured is arranged above the convex mirror or the concave mirror, a telecentric lens is arranged above the mirror to be measured, a half-wave plate is arranged above the telecentric lens, and a collimator is arranged on the left side above the half-wave plate; the lens surface defect detection is realized by adopting digital holography, meanwhile, the advantages of large depth of field and high resolution of the digital holography are applied to the field of lens surface defects, a foundation is laid for rapid detection of the lens surface defects, and the method is clear and convenient to operate.

The application discloses a compound microbial agent for improving fiber utilization of broilers and application thereof, and belongs to the technical field of microorganisms. The compound microbial agent is compounded by Lactobacillus casei R7-6 and Lactobacillus rhamnosus R5-8 at a volume ratio of 1:0.5-2. The two known strains are compounded for the first time, and it is found that the compounded strains have a synergistic effect within the range of 1:0.5-2, and the effect is significantly reduced beyond the range. The compound microbial agent has selective fermentation characteristics for different fiber source substrates, and the fermentation effect of the compound microbial agent on purple elephant grass and Guimin elephant grass is significantly better than that on alfalfa and Gegen. After fermentation, the content of crude protein is increased, and the content of neutral detergent fiber is reduced. When the compound microbial agent is used for feeding the purple elephant grass or the Guimin elephant grass, the daily average weight gain of broilers is increased, the feed conversion ratio is reduced, and the abdominal fat rate is reduced. The application provides an efficient microbial solution for high-value utilization of agricultural by-products such as purple elephant grass, Guimin elephant grass and other fibers.

According to some embodiments disclosed herein, an optical device includes an optical source, a mode field adapter, and an optical output fiber. The optical source is configured to provide source light having a first mode field diameter at a wavelength of the source light. The mode field adapter includes a coreless optical fiber and a graded index optical fiber optically coupled in series with the optical source. The mode field adapter is configured to receive the source light and to provide output light having a second mode field diameter at the wavelength of the source light, and the first and second mode field diameters are different. The optical output fiber has the second mode field diameter at the wavelength. The mode field adapter is optically coupled between the optical source and the optical output fiber. The optical output fiber and the mode field adapter are joined by a splice.

Imaging instruments and related methods are disclosed. In some examples, an elongated body may include a channel extending through at least a portion of the elongated body and an articulable portion extending along at least a portion of a length of the elongated body. A fiber optic bundle may be disposed in and extend through the channel of the elongated body. A sheath may be disposed in the channel along at least a portion of the elongated body including the articulable portion. At least a portion of the fiber optic bundle may be disposed in the sheath. The axial compressive stiffness of the sheath may be greater than an axial compressive stiffness of the fiber optic bundle to at least partially shield the fiber optic bundle from axial forces and limit axial movement of the fiber optic bundle during articulation of the elongated body.

A solid body made of an inactive, light transmissive material has embedded therein an optical fiber having a lengthwise segment in which a scattering structure is formed that is to redirect primary propagating light sideways out of the fiber. An active photoluminescent layer integrated in the optical fiber is to wavelength-convert the primary light into secondary light. The solid body is generally cylindrical but without rotational symmetry about the center longitudinal axis of the fiber. A portion of the outer side surface of the body is curved and is covered by an external reflector, while another portion of the outer side surface is uncovered by the reflector in order for the secondary light to emerge. Other embodiments are also described and claimed.

The application is suitable for the field of biological detection, and provides a cholesterol detection method based on polydopamine / β-cyclodextrin modified micro-nano optical fiber.The method comprises a narrow line width erbium-doped fiber light source, a multimode fiber jumper, a sensing unit, a spectrometer and a computer.The sensing unit is prepared by removing the coating layer of the multimode fiber through Miller forceps and is made into a biconical fiber (waist diameter 8 μm, length 12 mm) through hydrogen flame tapering, and the surface is modified with a polydopamine / β-cyclodextrin combination (dopamine solution concentration 2 mg / mL, β-cyclodextrin solution concentration 5 mg / mL).During detection, the light beam of the light source (center wavelength 1550 nm) passes through the sensing unit, and due to the local refractive index change, further causes the evanescent field distribution and leads to the red shift of the characteristic wavelength of the signal light, the wavelength drift amount is observed by the spectrometer, and the data is transmitted into the computer for wavelength demodulation to realize the quantitative analysis of cholesterol.The method has the advantages of low cost, high sensitivity, strong anti-interference and integration by improving the light source stability through the double-ring cavity light source, increasing the sensing area through the biconical fiber and using specific coating recognition molecules, and provides a new technical scheme for cholesterol detection.

The application relates to a miniaturized near-infrared spectrometer imaging system, and relates to the field of near-infrared spectrometers, which comprises a light source module, a sample light line generation module, a fiber coupler, a fiber F-P filter, a photodetector and a multimode optical fiber; the light generated by the light source module can irradiate a sample through the sample light line generation module and generate sample light lines; the fiber coupler and the fiber F-P filter are connected through the multimode optical fiber, and the fiber F-P filter and the photodetector are connected through the multimode optical fiber; the fiber coupler receives the sample light fiber and transmits the sample light fiber to the photodetector through the multimode optical fiber, the fiber F-P filter and the multimode optical fiber. The application has the effects of reducing the baseline drift and noise of the spectrum, improving the accuracy of the spectrum, and being smaller in size and lighter in weight.

The invention relates to the technical field of light source equipment, and discloses an optical fiber light source, including: a housing; a battery is installed inside the housing; a circuit board is installed inside the housing, and the circuit board is electrically connected to the battery; a key assembly is arranged on the circuit board to connect or disconnect the circuit; a light source connector is built-in LED lamp bead, the LED lamp bead is electrically connected to the circuit board, and the light source connector is used to connect to the external optical fiber. It boasts advantages such as a simple structure, compact design, and ease of use.

This invention discloses a multi-channel switching device and method for astronomical terminal instruments. The device includes a frame, fiber optic mounts, a switching device, an adjustment device, and a precision calibration device. Utilizing the fixed geometric positional relationship between the incident fiber and the switching device, a motor-driven rotating shaft moves a reflector, ensuring that incident fibers at different positions on different fiber optic mounts are horizontally introduced into the terminal instrument. Errors in the incident light and the switching mechanism are calibrated using a tip / tilt mirror. The motor-driven intelligent unit switches between different incident fibers, avoiding high-precision position switching for each fiber optic source, reducing switching difficulty, and decreasing the degrees of freedom of the moving mechanism. This method achieves fully automatic switching of incident fibers, improving switching efficiency and accuracy, while avoiding the impact on equipment performance caused by manual switching requiring on-site intervention. This invention's device can simultaneously handle switching between direct incident light from folded-axis telescopes and fiber optic incident light.

The utility model relates to the technical field of illumination, and discloses an LED optical fiber light source which comprises an LED light source, and a converging assembly, a color wheel, a shaping assembly and an optical fiber light guide bundle which are sequentially arranged along a light path, the converging assembly is used for converging divergent light of the LED light source into fine light spots; the color wheel comprises a plurality of optical filters and is used for cutting a light spot into a circle and switching to output light of different colors; the shaping assembly is used for shaping the light spots so as to be matched with the input end face of the optical fiber light transmitting bundle. Divergent light is converged into fine light spots through the converging assembly, then the light spots are cut through the color wheel, colors are switched, then the light spots are matched with the end face of the optical fiber through the shaping assembly, and the problems that in a traditional scheme, the light spots are not uniform, and multi-color output cannot be achieved are solved.

The present application relates to a nutraceutical composition for oral administration. Particularly, the application relates to a nutraceutical composition comprising one or more fiber source(s) and micronutrients, which is useful to manage postprandial sugar spikes. More particularly, the application relates to a nutraceutical composition comprising one or more fiber source(s) and micronutrients which can be consumed directly or as an adjunct to the food items in order to lower the glycemic index of the food, which in turn may help to manage or reduce the sugar spikes in the subject.

The invention discloses an optical fiber dynamic interferometer based on grating modulation, and belongs to the field of optical detection. Comprising an interferometer body, the interferometer body comprises an optical fiber light source, an optical fiber connector, a collimating mirror, a diffraction grating, a focusing mirror, an optical fiber connector, a collimating lens, a polarization splitting prism, a reference mirror and a quarter-wave plate, interference wavelengths can be effectively removed through selection of the optical fiber connectors for wavelengths, and only light beams with required wavelengths are reserved for measurement. Therefore, the purity of the measurement light beam is high, the influence of stray light and other factors on the measurement result is reduced, and a foundation is laid for accurately measuring the wavefront information of the to-be-measured surface. In combination with the effects of elements such as a quarter-wave plate and a polarization splitting prism, accurate polarization modulation and beam combination are performed on reference light and object light, finally, a real-time wavefront image can be accurately solved according to a four-step phase shift formula, and high-precision wavefront measurement can be realized.

The utility model relates to a car lamp optical cable light-emitting module which comprises a lamp support, a plurality of optical fiber strips are arranged on the lamp support through an embedded structure, a fixing support is arranged on one side of the lamp support, optical fiber light sources are arranged at the two ends of the fixing support, and the optical fiber light sources are electrically connected with the optical fiber strips. The fixing support is further provided with a control circuit board capable of controlling the light emitting effect of the optical fiber light sources, optical fiber strips are embedded in the lamp support and electrically connected with the optical fiber light sources at the two ends of the fixing support, efficient transmission and even distribution of light are achieved, and the problems that a strip-shaped lamp can generate spots and output is uneven are solved.

According to some embodiments disclosed herein, an optical device includes an optical source, a mode field adapter, and an optical output fiber. The optical source is configured to provide source light having a first mode field diameter at a wavelength of the source light. The mode field adapter includes a coreless optical fiber and a graded index optical fiber optically coupled in series with the optical source. The mode field adapter is configured to receive the source light and to provide output light having a second mode field diameter at the wavelength of the source light, and the first and second mode field diameters are different. The optical output fiber has the second mode field diameter at the wavelength. The mode field adapter is optically coupled between the optical source and the optical output fiber. The optical output fiber and the mode field adapter are joined by a splice.

The invention relates to the technical field of fiber source, and discloses a quick connector for optical fiber source, including a light source housing; an LED lamp bead inside the light source housing; a detachable connection between one end of the light source connector and one end of the light source housing; a jaw chuck plate installed inside the light source connector; a jaw on the jaw chuck plate, the jaw including annularly arrayed jaw pieces which are curved in the axial direction for clamping the optical fiber; an inner sleeve inside the light source connector, fixing the jaw on the jaw chuck plate; a release button plugged in the inner sleeve, which can spread the jaw by being pressed with external force to take out the optical fiber. The invention can realize the rapid insertion and removal of the optical fiber. The operation is simple, without other assistant tools.

The utility model discloses a single-shaft 70 fiber-optic gyroscope system and relates to the technical field of fiber-optic gyroscope inertial navigation. The optical fiber light source and the optical path detector are electrically connected with the coupler, the coupler, the digital closed-loop control signal processing circuit and the D / A converter are respectively connected with the Y waveguide, the Y waveguide is connected with the polarization maintaining optical fiber ring, the optical path detector is connected with the A / D converter, and the A / D converter is connected with the digital closed-loop control signal processing circuit. The digital closed-loop control signal processing circuit is connected with the digital filter circuit; the sequential control circuit is connected with the A / D converter, the digital closed-loop control signal processing circuit and the D / A converter respectively; the fiber-optic gyroscope system provided by the utility model has the advantages of miniaturization, high reliability and low cost; the overall size of the fiber-optic gyroscope is reduced, meanwhile, the precision index is controlled within an acceptable range, the system is simple in structure, and batch production can be achieved.

The invention discloses an optical fiber frequency stabilization dynamic interferometer capable of dynamically monitoring amplitude, which belongs to the field of optical detection and comprises an optical fiber light source, an optical fiber connector I is arranged above the optical fiber light source, a collimating mirror is arranged on the right side of the optical fiber connector I, and a diffraction grating is arranged above the optical fiber connector I; according to the invention, by adopting a grating modulation light source and photodiode real-time monitoring mode, the wavelength frequency stabilization of the light source and the dynamic monitoring of the amplitude of the light source are realized, the purpose of real-time dynamic accurate measurement of the wavefront is realized, in addition, the system realizes the optimization of the system volume through an optical fiber mode, and the measurement precision is improved. Meanwhile, wavelength screening and amplitude dynamic monitoring are carried out on the light source in a grating diffraction light splitting and photodiode real-time monitoring mode, so that system frequency stabilization is achieved, system size optimization is achieved through optical fiber, a foundation is laid for accurate measurement of a small dynamic interferometer, and the method is clear and convenient to operate.

The invention relates to a sensor as well as a preparation method and a measurement method thereof, in particular to a fiber-optic gyroscope based on a 3 * 3 coupler as well as a preparation method and a measurement method thereof, and aims to solve the problems of lower bandwidth, limited measurement range or higher cost of the conventional fiber-optic gyroscope. The fiber-optic gyroscope comprises a fiber-optic gyroscope table body, a fiber-optic ring fixing cavity arranged on the fiber-optic gyroscope table body, and a combined body of a main fiber-optic ring and a cushion fiber layer ring which are arranged in the fiber-optic ring fixing cavity, the device further comprises an erbium-doped optical fiber light source, a 2 * 2 single-mode optical fiber coupler, an integrated optical modulator, a first photoelectric detector, an optical fiber isolator, a 3 * 3 single-mode optical fiber coupler, a second photoelectric detector and a third photoelectric detector. The method has the advantages that the assembly space of the gyroscope is greatly saved, and meanwhile, the cost of the backup fiber-optic gyroscope is also reduced; and the length and the diameter of the optical fiber ring of the gyroscope for stripe correction can be flexibly adjusted according to actual use requirements.

The application relates to the technical field of cross-linked sodium carboxymethyl cellulose, in particular to a preparation process and application of bamboo-source cross-linked sodium carboxymethyl cellulose. The preparation process comprises preliminary alkalization, secondary alkalization, etherification and cross-linking, and does not use alcohol as a solvent, so that production cost can be effectively reduced, the safety hidden danger of alcohol solvent storage and use is reduced, and the production process is more green and environmentally friendly. In addition, the application can save the step of neutralizing the material after etherification and before cross-linking, avoids the addition of acid to reduce the acidolysis of the bamboo-source cross-linked sodium carboxymethyl cellulose, and improves the production efficiency and yield of the bamboo-source cross-linked sodium carboxymethyl cellulose to a certain extent. The cross-linked sodium carboxymethyl cellulose prepared by the application has more fiber sources, lower cost, greater bonding strength between fibers, and a porous structure, and has a wider application in the fields of textiles, food, medicines, electronic equipment, industrial equipment and the like.

A device for measuring the performance of an optical detector includes a cryostat, a holder capable of receiving the detector, secured to the inside of the cryostat, and means for measuring the performance of the detector. It also includes a screen arranged around the holder capable of limiting the radiation likely to reach the holder in a wavelength range of the detector, and a single-mode optical fiber in the wavelength range of the detector, inserted in an opening of the cryostat. The device further comprises at least one luminous flux generation module that incorporates a fibered source capable of generating the luminous flux in the optical fiber.