87results about How to "Affect the test results" patented technology

The invention provides three-dimensional paper-based microfluidics and a manufacture method thereof. The three-dimensional paper-based microfluidics is formed by overlapping and bookbinding of two-dimensional paper-based microfluidics. The manufacture method comprises the steps: designing a required chip pattern by drawing software, then printing wax onto the surface of a paper material with a printer, putting the printed paper material into a high-temperature container, baking, then taking out, and cooling to obtain the two-dimensional paper-based microfluidics; and then overlapping the two-dimensional paper-based microfluidics according to a designed way, next bookbinding the overlapped two-dimensional paper-based microfluidics together by a bookbinding device, and thus obtaining the three-dimensional paper-based microfluidics. The manufacture method has the advantages of simple operation, low cost and speediness, and has commercialization prospects.

The invention discloses a detection device for a load cable, and relates to the field of detection devices. The device comprises a nondestructive cable detector, a cable and a power motor, the bottomend of the nondestructive cable detector is welded to the top end of a control cabinet, the top end of the output shaft of the power motor is in key connection with a rotating wheel, the middle position of the output shaft of the power motor is in key connection with a driving bevel gear, the top end of a supporting column is fixedly connected with a cleaning mechanism, the upper end and the lowerend of the rotating shaft are in key connection with driven bevel gears, the driven bevel gear at the lower end of the rotating shaft is engaged with the driving bevel gear, and the driven bevel gearat the upper end of the rotating shaft is engaged with the cleaning mechanism. The cleaning mechanism cleans residues on the cable before detection, the destructive cable detector can detect the defect of the cable according to the change of the magnetization reaction of a magnetic field, and when the defect is detected, the position of the defect is marked by a marking mechanism, a warning songis emitted, and a worker is notified to process the defect, so the inspection speed is improved, and the device is easy to use.

The invention provides a water quality sampling and detecting instrument of a poultry housing waterline. The water quality sampling and detecting instrument comprises a sampler, a sampling cavity, a reagent cavity and a sample cavity are arranged in the sampler, a sampling through hole for enabling a drinking fountain to pass through is formed in the top of the sampling cavity, a sealing mechanismis arranged in the sampling through hole, a sampling bump is arranged on a bottom wall in the sampling cavity, a detector is connected to one side of the sampling cavity through threads, a detectionmechanism for detecting microorganisms in a water sample is arranged in the detector, a display screen and an operation panel are arranged at an upper end of the detector, a reagent cavity for accommodating a detection reagent is arranged between the sampling through hole and a threaded through-hole, a first opening is formed in the top of the reagent cavity, a sealing plug is arranged in the first opening, and the cavity communicates with the sample cavity through a valve mechanism. The water quality sampling and detecting instrument provided by the invention adopts a fully enclosed structureand can be reused for multiple times, can avoid secondary pollution caused by the contact of the water sample with the external environment during on-site detection and ensure the accuracy of the detection results, and has the characteristics of simple operation and long service life.

The invention relates to the technical field of water conservancy equipment, in particular to a dew formation inhibition type engineering flood prevention water level monitoring device, which comprises a barrel, a sleeve, turbine fan blades, an elastic waterproof block, a floating block, a telemetering terminal and a water level indicator. The turbine fan blades are driven to rotate by the naturalflow of water, on the one hand, the energy of water flow impacting the sleeve is used as power, no additional functional component is needed, and secondly, the sleeve can resist the water flow impactand avoid an inaccurate water level indicator detection result and reduced operating life. The greatest progress of the invention lies in that air flow is utilized to promote the barrel and electrical apparatus elements to quickly eliminate the temperature difference with the external environment, accordingly, the dew formation phenomenon is inhibited, and the device has practical significance and promotional value, and good economic benefits can be expected to be generated.

The invention discloses an immune chip laser scanning system for biological health research. The system comprises a shell; a working cavity penetrating the shell in a left-right direction is defined in the shell; a power cavity is arranged at the rear side of the working cavity in the shell; the bottom wall of the working cavity is communicated with a movable groove; the wall body between the power cavity and the movable groove is communicated with a lifting guide groove; the lifting guide groove is communicated with the working cavity and the power cavity; a lifting supporting block is installed in the lifting guide groove in a manner that the lifting supporting block can slide up and down. The system is easy to operate; the movement of the lifting supporting block, a humidity controllerand a temperature controller is achieved through work control of a screw motor shaft, and the movement of a chip is achieved, meanwhile, a pushing rod and a limiting rotating rod contact with a rotating clamping rod, so that the overturning of a clamp is achieved, accordingly, fixing work of the chip is achieved, it is guaranteed that detection work can be stably conducted; and a laser scanner ismatched with a swing plate to slide and can be rapidly reset, and therefore the situation that long-time irradiation of the laser scanner affects the detection result of the chip is prevented.

The invention discloses a rapid detection method of nifedipine in blood pressure reducing health foods, and a detection card developing method. The detection method comprises the following steps: 1, immersing a sample to be detected in an extract agent A and an extract liquid B, oscillating, and standing to extract nifedipine; 2, taking the obtained immersion solution, and filtering the immersion solution through a micro-porous filter membrane; 3, taking a certain amount of the obtained filtrate, and adding a sample dilution solution C according to a volume ratio of the sample dilution solution to the filtrate of 1:1 to obtain a sample-to-be-detected treatment solution; 4, taking 70[mu]L of the ample-to-be-detected treatment solution, adding the ample-to-be-detected treatment solution to a nifedipine detection card in a dropwise manner, observing the change of the color of test paper, preliminarily determining that the sample contains nifedipine if the test paper is yellow or orange red, and comparing the color with a standard color gradation spectrum to realize qualitative analysis; and 5, using a hand-held gold marking color developing instrument to carry out quantitative detection. The detection card developing method includes the following steps: preparing a test paper substrate, preparing a color developing solution, immersing the test paper substrate, preparing detection test paper, and preparing a detection card. The detection method is suitable for onsite rapid detection of the chemical component nifedipine in the blood pressure reducing health foods.

The invention discloses an air quality detection device. The air quality detection device comprises a device case, a fan, a water box, an exhaust pipe, a glass sheet, a PH detection section, a dust detection section, a filter screen, a drainage pipe, a processing device, a test paper reel pipe, a dust adsorption screen, a slide rod, a hanging ring and a spray pipe. The air quality detection devicehas the advantages that the device case is divided into two parts, one part is the dust detection section, the other part is the PH detection section, the dust detection pipe is tightly attached to an air suction inlet, the PH detection section is located at the rear side of the dust detection section, so that after completing detecting the content of dust in air, the device can detection the alkalinity or acidity of the air, the detection range is wider, and the function is more complete; moreover, particle matter like the dust in air is adsorbed by the dust adsorption screen, and thereforeit is avoided that dust and the like influence the PH detection result. By installing a layer of filter screen in an air inlet of the device case, inflow air can be subjected to filtering treatment inadvance during detection, and it is ensured that the detection result is precise.

The invention discloses a rock true-triaxial testing apparatus having an ultrasonic phased array real-time imaging system. The rock true-triaxial testing apparatus comprises a host computer, an ultrasonic triggering / reception plate, and an ultrasonic phased array energy transducer, the host computer is connected with the ultrasonic triggering / reception plate, and the ultrasonic phased array energytransducer is coupled with a sample; the ultrasonic triggering / reception plate is composed of an array element switching circuit, a signal amplification adjusting circuit, a digital analog converter,an ultrasonic array element trigger circuit, a trigger-delay circuit, a data collector, and a microprocessor; the array element switching circuit is connected with the signal amplification adjustingcircuit and the ultrasonic array element trigger circuit, the signal amplification adjusting circuit is connected with the digital analog converter through the digital analog converter, the ultrasonicarray element trigger circuit is connected with the digital analog converter through the trigger-delay circuit, and the digital analog converter is connected with the host computer through the microprocessor. The rock true-triaxial testing apparatus has the advantages of good signal to noise ratio, high resolution, and convenient usage.

The invention discloses a building door and window on-site airtight performance detection device, and belongs to the technical field of airtight performance detection equipment. The building door and window on-site airtight performance detection device comprises a detection box and a sealing cover, the sealing cover is rotatably connected to the detection box, the device further comprises a pressurization bin arranged in the detection box, and a detection bin capable of accurately detecting air leakage parts of a door and a window is arranged below the pressurization bin; and a motor is fixedly connected to the side wall of the detection box; while the airtight performance of the door and window is detected, the wind pressure resistance of the door and window can be detected, then in the detection process, the part, with poor air tightness, of the door and window can be accurately detected, meanwhile, the sealing performance of the connecting position of the sealing cover and the detection box can be improved, the condition that detection result of the door and the window is affected due to the leakage of air pressure in the pressurization bin through a gap is is prevented, automatic loading and unloading can be realized, so that the labor intensity of workers is reduced, and the detection efficiency is greatly improved.

The invention relates to a construction sewage collecting device which comprises a mounting pipe. A water receiving opening is formed in the inner side wall of the mounting pipe, a material receiving bottle is mounted at the water receiving opening and is connected with the mounting pipe through the water receiving opening, and an opening and closing assembly is mounted at the water receiving opening and comprises a fixed plate and a rotating plate. The fixed plate is fixedly arranged at the water receiving opening, the rotating plate is rotatably arranged on the fixed plate, through holes are formed in the fixed plate and the rotating plate, and the rotating plate closes or opens the through holes through rotation. The device has the advantages that the mounting pipe is mounted on a sewage discharge pipeline so that sewage enters the material receiving bottle through the water receiving opening, the sewage can be received during sewage discharge, and the probability that the sewage is diluted by river water to influence a detection result is reduced.

The handheld seawater quality multi-point detector comprises a machine body shell, a high-pressure air cavity is formed in the machine body shell, a first air channel penetrating through the left surface of the machine body shell is formed in the left wall of the high-pressure air cavity, a one-way valve is installed on the first air channel, and an air pump installed on the first air channel is arranged on the left side of the one-way valve; a first controller is arranged on the right side of the high-pressure air cavity; the air pump is started to fill the high-pressure air cavity with high-pressure air, the first control valve can control the high-pressure air in the high-pressure air cavity to be instantly released into the launching cavity to push the floating table and the detection hair to be launched out, the floating table and the detection hair are launched out to be away from the coast side, and the detector can detect the water quality condition of seawater. Meanwhile, the first water pump controls sinking and floating of the detection head by controlling the amount of seawater in the detection cavity, and water quality detection of seawater at different depths is achieved.