37results about How to "Realize on-site measurement" patented technology

The disclosed measuring device is composed of laser vision sensor, computer, image acquisition card in high speed, calibrating target drone and measuring software. The method includes steps: after imaging system for rail section images light plane projected from laser projector, the image acquisition card captures rail section images and sands them to computer. Processing the collected images, the computer picks up image coordinates of sectional feature contour, as well as calculates out vertical abrasion, side abrasion and total abrasion based on measured model. The invention is capable of measuring sectional contour of rail in single side, vertical abrasion, side abrasion and parameter of total abrasion through single laser vision sensor.

The invention relates to a measuring device and a measuring method for large three-dimensional morphology based on an inertial navigation technology. The measuring device comprises a laser tracker, a portable handheld measuring terminal and a computer, wherein the portable handheld measuring terminal comprises a handheld support, a high-precision CCD (charge coupled device) camera is fixed at the upper part of the handheld support, an image processing and communication unit is positioned in the middle of the handheld support, a semiconductor laser projector is clamped at the lower part of the handheld support, an inertia navigation unit is clamped at the upper part of the handheld support, and the computer is connected with the communication unit and the laser tracker. According to the invention, the inertia navigation technology, the single-point tracking measuring technology of the laser tracker and the linear laser scanning technology are combined, the system can realize three-dimensional measurement in a measuring space which is 80m maximally, rigorous logicality is realized, the engineering is simple to realize, the precision is reliable, quick and high-precision acquisition of three-dimensional point cloud data of oversized workpieces can be realized without high cost on the basis of the existing laser tracker, and the measuring device and the measuring method have good economical usability.

The invention provides a decoration effect displaying method and system of a cubic room. The method comprises: image information, obtained by scanning by a camera, of a cubic room is mapped to a display screen; a distance between the center of the display screen to a floor is recorded at a same position inside the cubic room, display screen rotation angle information that is detected by a gyroscope when the center of the display screen is aligned at each corner of the cubic room is recorded respectively; according to the display screen rotation angle information as well as the distance between the center of the display screen and the floor, calculation is carried out to obtain relative position relations between the eight corners of the cubic room; on the basis of the relative position relations of the eight corners, a 3D scene model of the cubic room is simulated by using a 3D engine; a 3D model of a household item needed by decoration of the cubic room is introduced and is configured into the 3D scene model of the cubic room; and the 3D scene model of the cubic room is displayed on the display screen. With the method and system, a room dimension can be measured on site and a room decoration effect can be displayed.

The invention designs a method for measuring the oxygen effective diffusion coefficient in a fuel cell catalyst layer. The method includes the steps of S1, assembling double membrane electrodes into a fuel cell; S2, detecting the limited current of the fuel cell; S3, substituting the limited current into a Fick law shown in the formula I to obtain the diffusion coefficient of an electrode layer, wherein CO2 is experiment control amount of oxygen concentration, CPt and suf are oxygen concentrations of a Pt surface, delta is the thickness of a simulation catalyst layer, and all can be obtained through experiment measurement. The method has the advantages that DCL does not contain Pt and is free of electrochemical reaction, so the mass transfer characteristic can be presented through the Fick law; the manufacturing method, material composition and CL of the DCL are completely consistent, and the mass transfer characteristic of CL can be effectively copied; by measuring the limited current, the relation between the oxygen flux and the concentration is obtained, and the effective mass transfer coefficient is calculated through the Fick law.

The invention belongs to the technical field of solar thermal collection and discloses a solar thermal collector thermal performance parameter and circular flow measuring device and method. According to the arrangement, a complicated and expensive flow sensor is not required, and the measuring device is composed of a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor, an irradiatometer and a data recording and processing module. The measuring method includes performing field measurement to obtain a flow temperature in a vacuum tube, collector inlet and outlet temperatures, environment temperature, irradiation of the collector plane and data collecting time, and calculating thermal loss coefficient, effective thermal gain coefficient and circulation flow of the glass vacuum tube solar thermal collector. The solar thermal collector thermal performance parameter and circular flow measuring device and method has the advantages that measuring process is simple and convenient, field measurement is realized, and high practicability and university is achieved.

The invention discloses a circuit for measuring spot impedance of dry type air reactors and a detection method. During spot detection, due to the fact that other operation reactors around a tested reactor work, and relatively large power frequency induction current is generated in the tested reactor, the current flowing through the reactors is sum of the power frequency induction current and applied detection current. The circuit comprises a current transformer unit (1), wherein the current transformer unit (1) is connected with a voltage and current signal acquisition unit (2); the voltage and current signal acquisition unit is connected with a resistance voltage divider (3); the resistance voltage divider is connected with the tested reactor (4) in parallel; an inductor L3 and a capacitor C1 are connected in series and then connected with two ends of the tested reactor in parallel; the inductor L3 is connected with a protection resistor R4; the protection resistor is connected with an isolation transformer; the isolation transformer is connected with a medium-frequency power supply; and the tested reactor is connected with a surrounding operation reactor (6) through a mutual inductor M12. The circuit is used for the spot measurement of impedance of dry type air reactors.

The invention relates to an automatic device for quickly measuring content of bacteria in sewage of an oil field and finished oil, which mainly aims at solving the problems of lower measuring speed, inconvenience and inaccurate results in the prior art. The automatic device for quickly measuring the content of bacteria in the sewage of the oil field and finished oil comprises a box body and bacteria enriching and nucleic acid molecule extracting equipment, wherein the bacteria enriching and nucleic acid molecule extracting equipment comprises a reagent tube placing position (1), a reagent tube placing position (4), a filtering membrane (2), an adsorbing layer (3), a reaction tank (5), a light source (6), a light filter (7), a light sensor (8) and at least four valves. By adopting the technical scheme, the automatic device has the advantages that the technical problems are well solved, and the method can be used for measuring the content of bacteria in a liquid sample.

The invention relates to an on-site detection kit and a detection method for vibrio parahaemolyticus in a water body, and belongs to the field of water quality detection. The kit comprises a brominated N-dodecyl isoquinoline reagent, a vibrio parahaemolyticus virulent phage suspension and vibrio parahaemolyticus bacterial suspensions with different concentration gradients. The method for detectingthe vibrio parahaemolyticus in the water body by utilizing the kit comprises the steps of filling a water sample to be detected into a detection tube, and adding the special virulent bacteriophage, so that the vibrio parahaemolyticus in the water sample can be specifically and quickly split to generate various small molecules and ions, and the [sigma] value is increased. As the increment of [sigma] is in direct proportion to the amount of the vibrio parahaemolyticus in the water body contained in the detection tube, the quantitative information of the vibrio parahaemolyticus in the water bodysample to be detected can be calculated by measuring [delta]sigma. According to the method, the amount of the vibrio parahaemolyticus in the complex water body containing various microorganisms can be rapidly determined on a culture site, and high-timeliness and accurate support data is provided for fishery production management.

The invention discloses a medical movement flat plate speed calibration device and a precision design and calibration method thereof. The medical movement flat plate speed calibration device of the invention includes color mark sensors, a color mark, a cantilever, a ball screw rod, a guide rail, a support and a base; the white color mark is pasted on a running belt; the two color mark sensors are installed at two ends of the cantilever; the cameras of the color mark sensors face downwards; the running belt drives the color mark to pass through the two color mark sensors, so that the measurement of the speed of a movement flat plate can be realized. The method includes the following steps that: error distribution is performed on the speed of the flat plate, so that maximum allowable error in length and time is obtained; length error is controlled within a required accuracy range through mechanical design and length calibration equipment selection; and time error is controlled within a required accuracy range through crystal oscillator and time calibration instrument selection. The medical movement flat plate speed calibration device has the advantages of high test precision, small size, portable convenience, convenient operation, wide application range and the like.

The present invention relates to a method for measuring the bacterial content in a liquid sample. In the prior art, the measurement is slow and is inconvenient, and the result is not accurate. A purpose of the present invention is to mainly solve the problems in the prior art. The technical scheme of the present invention is that the bacterial content in a liquid sample is measured through the bacterial content measurement device in the liquid sample, and the bacterial content measurement device comprises a box, a reagent tube placement position, a reagent tube, an observation hole, and a bacterial enrichment and protein capture device. With the technical scheme of the present invention, the problems in the prior art are well solved. The method of the present invention can be used for the measurement of the bacterial content in the liquid sample.

The invention discloses a sensor for measuring content of reducing bacteria in sulfate. The sensor comprises a sensor electrode (19) and a reference electrode (10), wherein both the two electrodes are connected with a potentiometer (4); an electrode insulated tube (5) covers the outside of the sensor electrode (19) and the reference electrode (10); one end of each electrode extends out of the electrode insulated tube (15) and the other end of each electrode is connected with a cable (11); the electrode insulated tube (15) is inserted into a sensor housing (17) in a penetration manner; an insulated seal (18) is arranged between the electrode insulated tube (15) and the sensor housing (17); one end of the sensor housing (17) is an open free end; holes (6) communicated with the sensor electrode (19) and the reference electrode (10) are formed in the side wall of the end; a waterproof rubber pad (12) outside the two electrodes is connected with the other end of the sensor housing (17) in a sealed manner. The sensor disclosed by the invention can be used for in-situ field measurement of the content of the reducing bacteria in the sulfate, and is convenient, quick, and high in test speed.

The invention relates to a device for measuring the bacterial content in a liquid sample. The device mainly solves the problems of relatively low measurement speed, inconvenience and low result accuracy in the prior art. The device for measuring the bacterial content in the liquid sample is used, and comprises a box body, a reagent tube placing position, a reagent tube, an observation hole and bacterium enrichment and protein molecule capture equipment, wherein the bacterium enrichment and protein molecule capture equipment comprises the reagent tube placing position, a filtering membrane, an adsorption layer, at least two waste liquid pools and at least two valves. By using the technical scheme, the problems are better solved; the device can be used for measuring the bacterial content in the liquid sample.

The invention relates to a hollow blade wall thickness parameter measuring device. The hollow blade wall thickness parameter measuring device comprises a data collecting structure and a measuring device controller. The measuring device controller is composed of a constant current source exciting circuit, a pre-amplification circuit, a narrow-band bandpass filter circuit, a true virtual value converting circuit and a data processing and compensating circuit which are sequentially connected. A feedback resistor, an inductor and an exciting coil are sequentially connected between the negative access unit and the 6 pin of the amplifier of the constant current exciting circuit; the 4 pin of the amplifier is connected with a -15 V power source and a first capacitor, the 7 pin of the amplifier is connected with a 15 V power source and a second capacitor, and the first capacitor an the second capacitor are the same in parameters, and one ends of the first capacitor and the second capacitor are grounded. Under the action of the a feedback proportional amplifying circuit, the hollow blade wall thickness parameter measuring device can avoid distortion due to influence of environmental temperature and electromagnetic interference; meanwhile, a measuring probe is reasonable in diameter design and accordingly small in diameter. Therefore, the hollow blade wall thickness parameter measuring device can achieve field measurement of the wall thickness of a hollow blade, of which the curvatures of the convex surface and the concave surface of the outer contour are relatively large.