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57results about How to "Good sensitization effect" patented technology

Electrochemical sensor for rapidly measuring carmine and citrine and preparing method thereof

InactiveCN104316583AIncrease concentrationEnhanced electrochemical oxidation signalMaterial electrochemical variablesCarbon paste electrodeGraphite
The invention discloses an electrochemical sensor for rapidly measuring carmine and citrine. The electrochemical sensor at least comprises a carbon paste electrode, wherein the carbon paste electrode comprises a casing and a copper bar, and a cavity is formed in the front end of the casing and filled with carbon paste. The invention further provides a preparing method of the sensor. The preparing method comprises the following steps: S1, dissolving Al(NO3)3.9H2O in secondary water, then adding urea, transferring an obtained solution into a hydrothermal reactor, putting in an oven to react, washing and suction-filtering solids obtained by reaction with the secondary water, drying in the oven, then putting in a muffle furnace and forging to obtain an aluminum oxide material; S2, uniformly mixing the aluminum oxide material, graphite powder and paroline oil to obtain the carbon paste, then pressing the carbon paste into a cavity at the front end of the casing, and abrading and polishing on weighing paper to make the electrochemical sensor for rapidly measuring carmine and citrine. The made electrochemical sensor is simple and convenient to operate, has great environment-friendliness and high flexibility, does not require long-time enrichment and meets the requirements of rapid detection.
Owner:广东省潮州市质量计量监督检测所

Dual-sensitization high-sensitivity FBG temperature sensor and manufacturing method thereof

The invention provides a double-sensitization high-sensitivity FBG temperature sensor and a manufacturing method thereof, and the sensor comprises three cylindrical metal tubes, one of the cylindrical metal tubes is a metal housing, the inner diameter of the cylindrical metal tube is slightly larger than the outer diameters of the other two metal tubes, and the middle part of the cylindrical metal tube is provided with a plurality of through holes. Two small metal tubes are connected through epoxy resin glue and embedded into a large metal shell by a certain depth, so that a section of cavity exists in the metal shell, four through holes are formed in the cavity of the metal shell, and the fiber bragg grating is installed in the three metal tubes which are connected in series through glue in a bonding mode. The grating is coated with colloid with a high thermal expansion coefficient; and the high thermal expansion characteristic of the organic polymer on the outer side of the FBG and the influence of thermal expansion and contraction of the metal on the central wavelength are utilized to realize dual temperature sensitization of the FBG, and the response speed and the sensitization effect of the FBG temperature sensor are improved.
Owner:WUHAN UNIV OF TECH

Lifting system gear shaft torque monitoring device and gear shaft

The invention discloses a lifting system gear shaft torque monitoring device and a gear shaft. The device comprises torque transmission tubes, strain measurement tubes, measurement fiber bragg gratings, transmission optical fibers, a rotary connector, a demodulator and a terminal, the strain measurement tubes are connected between the two adjacent torque transmission tubes, the measurement fiber bragg gratings are attached to the outer walls of the strain measurement tubes, a connecting hole is formed in each strain measurement tube, one ends of the transmission optical fibers penetrate through the connecting holes to be connected with the measuring fiber bragg gratings, the other ends of the transmission optical fibers penetrate through the torque transmission tubes to be connected with the rotary connector, the rotary connector is in data connection with the demodulator, and the demodulator is in data connection with the terminal; and the outer diameter of the torque transmission tubes is more than the outer diameter of the strain measurement tubes. According to the scheme, the torque of the climbing gear shaft can be accurately detected in real time, so that whether loads borne by all transmission devices are balanced or not can be effectively reflected, overload caused by deformation or other reasons of individual lifting systems can be found in time, and accidents are avoided.
Owner:KEEN OFFSHORE ENG CO LTD

Technology for plating surface of glass fiber with metal layer

The invention relates to the technical field of glass fiber production and discloses a technology for plating the surface of glass fiber with a metal layer. The technology needs a device for plating the surface of the glass fiber with the metal layer. The technology comprises the following steps of (1) conducting purifying, wherein heat treatment at the temperature of 205-255 DEG C is conducted onthe glass fiber; (2) conducting coarsening, wherein the glass fiber obtained after oil removal in the step (1) is placed in a coarsening solution, the temperature of the coarsening solution is raisedto 30-40 DEG C, and dipping is conducted for 4-7 min under the condition of keeping the temperature; (3) conducting cleaning, wherein the coarsened glass fiber is flushed with water, so that remaining coarsening liquid on the surface of the glass fiber is removed; (4) conducting sensitizing, wherein the glass fiber washed in the step (3) is placed in a sensitizing solution for sensitizing treatment at the room temperature; (5) conducting activation, wherein the sensitized glass fiber in the step (4) is directly placed in an activation solution, stirring is performed for 3-5 h, and then standing is performed for 1-2 h; (6) conducting cleaning; and (7) conducting drying. The technology for plating the surface of the glass fiber with the metal layer improves layer plating efficiency and safety.
Owner:GUANGZHOU ZHUOYUE POWER NEW ENERGY CO LTD

A kind of lifting system gear shaft torque monitoring device and gear shaft

The invention discloses a gear shaft torque monitoring device and a gear shaft of a lifting system, comprising a torque transmission tube, a strain measurement tube, a measuring fiber grating, a transmission optical fiber, a rotary connector, a demodulator and a terminal, and two adjacent torque transmission tubes A strain measuring tube is connected between them, and the measuring fiber grating is attached to the outer wall of the strain measuring tube. The strain measuring tube is provided with a connecting hole, one end of the transmission fiber is connected to the measuring fiber grating through the connecting hole, and the other end passes through the torque transmission. The tube is also connected with the rotary connector, the rotary connector is connected with the data of the demodulator, and the demodulator is connected with the terminal data; the outer diameter of the torque transmission tube is greater than the outer diameter of the strain measuring tube. This solution can accurately detect the torque of the climbing gear shaft in real time, so that it can effectively reflect whether the load on each transmission device is balanced, and the overload caused by deformation or other reasons of individual lifting systems can be detected in time to avoid accidents.
Owner:KEEN OFFSHORE ENG CO LTD
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