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 flow-adjustable impact type compressed air microorganism sampler with sieve meshes, and is applied to the technical field of microorganism acquisition and quantity monitoring. The flow-adjustable impact type compressed air microorganism sampler comprises a shell, a sampling head and a controllable decompression gas circuit system. The sampling head is arranged on the top of the shell, the controllable decompression gas circuit system is arranged in the shell, an air inlet channel is arranged on the sampling head, a culture dish seat which directly faces the air inlet channel is arranged on the shell and is positioned below the sampling head, an air outlet channel is arranged on the culture dish seat, the controllable decompression gas circuit system comprises a gas circuit, a gas pressure regulating valve and a gas flow meter, the gas pressure regulating valve and the gas flow meter are arranged on the gas circuit, one end of the gas circuit on the shell is connected to a gas source connector, and the other end of the gas circuit is butted to the air inlet channel of the sampling head by a gas dispersing head. Compared with other treatment methods, the flow-adjustable impact type compressed air microorganism sampler has the advantages that the flow-adjustable impact type compressed air microorganism sampler is high in sampling speed and particle capture rate; the actual contents of bacteria in compressed air can be accurately expressed, and accordingly a perfect sampling method is proposed.

The invention discloses a testing method of rock true triaxis with an ultrasonic phased array real-time imaging system with, relating to a testing method of a rock true triaxis. The testing method comprises the following steps: putting a test sample between a square upper pressure head and a square lower pressure head, and coupling an ultrasonic phased array energy converter to the front or the back of the test sample through a coupling agent; operating a manual operating and loading part so as to ensure that the test sample does not deviate after operation; operating a pumping loading part soas to apply X-direction force to the test sample; transferring an electric pulse signal to the ultrasonic phased array energy converter through an upper computer during loading process; converting the electric pulse signal into a sound wave signal and transferring to the test sample through the ultrasonic phased array energy converter; and receiving the sound wave signal and generating an echo signal through the test sample, and transferring the echo signal to the ultrasonic phased array energy converter, converting the received echo signal into an electric signal through the ultrasonic phased array energy converter, and receiving the transferred electric signal and converting into images through the upper computer. The testing method has the advantages of being good in signal to noise ratio, high in resolution and convenient to use.

The invention discloses a soil detection device. The soil detection device comprises a console, a longitudinal regulation mechanism and a sampling mechanism; a fixed mechanism is mounted on the lowersurface of the console; a transverse regulation mechanism is mounted at the left part of the console; a clamping mechanism is mounted on the transverse regulation mechanism; and the sampling mechanismis arranged on the console. According to the soil detection device, the sampling mechanism is arranged, so that while accurate sampling is implemented, soil at different depths can be simultaneouslysampled, thereby facilitating carrying out detection of the soil at different depths by an experimenter; scale marks are set, so that a sampling depth can be observed; the clamping mechanism is arranged, so that the sampling mechanism can be clamped by the clamping mechanism after sampling, thereby facilitating sampling by an inspector without holding a sample with a hand by the inspector and preventing the hand of the inspector from being damaged by polluted soil; and a drying box is arranged, so that the sample can be dried, thereby preventing influence of soil humidity on a detection result.

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 belongs to the field of pH detection and particularly relates to a pH detection device and a method. The pH detection device comprises a probe, a detection bracket, a stirrer, a probe purifying mechanism, a probe driving mechanism and a control device, wherein the probe is used for detecting pH of a liquid in a reagent bottle; the detection bracket is used for fixing the probe; the stirrer is used for stirring the liquid in the reagent bottle; the probe purifying mechanism is used for cleaning and air-drying the probe after pH detection; the probe driving mechanism is used for driving the detection bracket to rotate and move vertically to enable the probe to move back and forth in the reagent bottle on the stirrer and in the probe purifying mechanism; the control device is connected with an output end of the probe and a controlled end of the probe driving mechanism. The pH detection device has the following advantages: the probe is purified by the probe purifying mechanism, preparation is made for next experiment, and mechanical technique support is provided for automatic pH detection on the basis of the prior art.

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 discloses a lens detection device used on a stream line and relates to the technical field of steam line lens detection equipment. The lens detection device comprise a moving part, a conveyer belt, a storage part and a feeding part, wherein one end of the conveyer belt is propped against the feeding part; the feeding part is used for conveying a lens to be detected to the conveyer belt through vibration; the other end of the conveyer belt is propped against the storage part; the storage part is used for collecting and storing detected lenses; a driving tank is arranged at the bottom of the storage part; the driving tank is used for driving the storage part to be lifted up and down; the conveyer belt is used for a lens which is received from the feeding part and is to be detected to the storage part; a cleaning part, a detection part and a control part are arranged on one side of the conveyer belt; the cleaning part is used for cleaning the lens to be detected; the detection part is used for detecting the light permeability of the lens; the control part is used for controlling movement of the conveyer belt and the moving part. Due to adoption of the moving part, the lens does not need to be moved manually, lens contamination can be reduced, and the detection result of the lens is not affected.

The invention discloses a rare earth automatic weighing and feeding device, a feeding method and a rare earth automatic weighing and feeding system. The device comprises a support frame and a stock bin arranged on the support frame, and also comprises a material shifting device, a weighing device and a controller, the material shifting device comprises a material shifting driving device and a shifting device, and the shifting device is arranged in the stock bin; the weighing device is arranged at the bottom of the stock bin, and is used to detect the weight of rare earth materials in the stockbin and output weight signals; the controller is connected with the material shifting driving device and the weighing device in a signal mode, and is used to receive the weight signals and control the operation of the material shifting driving device, the controller is configured that when a weighing request is received, the material shifting driving device drives the shifting device to reverse or shake, and then the weight signals of the weighing device are read. The material shifting device is arranged to shift the rare earth materials, so that the rare earth materials are smoothly discharged, the controller is connected with the material shifting driving device and the weighing device in a signal mode, and controls the operation of the material shifting driving device, timing and quantitative automatic feeding is achieved, and blocking of an outlet caused by agglomeration during discharging is avoided.

The invention relates to the field of shield tunnel segment detection, aims at detecting the stress performance and the ultimate bearing capacity of the segment, and provides a segment mechanical test device which comprises a main framework, mutual pull mechanisms, a supporting roll disc and load loading mechanisms. The main framework comprises a rectangular framework structure and an installing plate of which the installing surface is provided with locating clamp grooves. The locating mutual pull beam and the adjusting mutual pull beam of each mutual pull mechanism are mutually parallel. The locating ends of mutual pull rolls are fixedly connected with the locating mutual pull beam, and the adjusting ends are flexibly connected with the adjusting mutual pull beam. Each load loading mechanism comprises a loading mechanism and an installing baseplate which is provided with a locating key stand. The segment to be detected is arranged in the main framework in detection, the mutual pull mechanisms sleeve the main framework and are close to the end part of the segment to be detected. The load loading mechanisms are installed and fixed on the installing plate and abut against the segment to be detected. According to the segment mechanical test device, the stress performance and the ultimate bearing capacity of the segment to be detected can be directly detected so that detection is convenient and the accuracy is high.

The invention discloses an adhesive performance testing device. The adhesive performance testing device comprises a lower detection platform, wherein the lower detection platform comprises CMSS2100 vibration measurement sensors, a detection platform body, springs, a detection platform base and an MVE20 vibration motor; the springs are symmetrically mounted at two sides of the bottom of the detection platform body; the bottoms of the springs are connected with the detection platform base; the MVE20 vibration motor is fixedly connected with the middle position of the bottom of the detection platform body through a bracket; the CMSS2100 vibration measurement sensors are symmetrically mounted at two sides of the detection platform body; a supporting rod is mounted at the middle position of thebottom of a lower detection platform. According to the adhesive performance testing device, the lower detection platform is composed of the CMSS2100 vibration measurement sensors, the detection platform body, the springs, the detection platform base and the MVE20 vibration motor; the MVE20 vibration motor drives the detection platform body to vibrate; the detection platform body is vibrated to generate a vibration force for driving the springs to be subjected to elastic deformation, so that the detection platform body can be continuously vibrated; meanwhile, the CMSS2100 vibration measurementsensors can be used for detecting the vibration amplitude of the detection platform body.

The invention relates to the field of metal surface defect detection devices, in particular to a portable metal surface defect laser scanning detection device which comprises a fixing seat, a feedingstructure, a clamping structure, a fixing structure, a moving structure, a mounting structure and an ash removal structure. Through arranging the mobile structure, reciprocating comprehensive detection work can be carried out on the surface of the steel pipe, detection is more convenient and accurate, the moving speed is more uniform, and the requirement of improving the detection precision can bemet. Cooperating with the arrangement of the mounting structure, the scanning assembly can be conveniently clamped and disassembled. The device is convenient to install and replace. The ash removal structure can be synchronously driven to work while the moving structure works. Through work of the ash removal structure, dust outside a steel pipe can be removed while the steel pipe is detected, andtherefore the situation that the detection result of the steel pipe is affected by the dust on the surface of the steel pipe can be avoided.

The invention discloses a transmission mechanism and a transmission method for paper boards. The transmission mechanism comprises a paper board feeding device, a detecting device and a pick-and-place device, wherein the detecting device is used for detecting the quantity of the paper boards on the paper board feeding device; the pick-and-place device is used for picking and placing the paper boards for the paper board feeding device; the detecting device comprises a detecting rod which is hinged to a baseplate; one end of the detecting rod is propped tightly against the paper boards; a sensor on the baseplate measures the rotating displacement of the other end of the detecting rod, so as to obtain the quantity of the paper boards; paper boards are picked and placed by a vacuum chuck of the pick-and-place device. The mechanism is simple in structure and low in cost, improves degree of automation and production efficiency greatly, guarantees productive stability and detection precision, and meets detecting demands of paper boards with different thicknesses.

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 belongs to the field of food detection technologies and discloses an inorganic arsenic detection pretreatment simple purification system and method. The system is provided with a base box; a boss is arranged inside the base box; an atomic fluorescence spectrometer is fixed to the boss through bolts; a second centrifuge is fixed to the base box through a bracket; the second centrifugeis connected with the atomic fluorescence spectrometer through a conduit; a vibration box is fixed to the upper end of the base box through bolts; a first centrifuge is fixed to the upper end of thevibration box through bolts; the upper end of the first centrifuge is provided with a filter box; the filter box is provided with a filter net; a funnel is fixed to the upper end of the filter box through bolts; a crusher is fixed inside the funnel through bolts; and a connection channel between the vibration box and the first centrifuge is provided with a small-hole filter net. With the system and method of the invention adopted, detection steps can be greatly simplified; and a collecting device at the bottom of the system is set to be the closed base box, and therefore, it can be effectivelyensured that an obtained test sample is free from external pollution.

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 kaolin reagent quality control product. The quality control product is lyophilized formulation, and the raw material of the lyophilized formulation includes platelet-deficient animal plasma. The R value of the quality control product is 6-8 min, the K value is 2-5 min, the Angle value is 60 DEG-80 DEG, and the MA value is 23-45 mm. The kaolin reagent quality control product is sensitive to the kaolin reagent reaction, so the accuracy of the quality detection is high, and the quality control requirements for the kaolin preparation in thromboelastography test are met. The quality control product has good reconstitution stability and can be stored for a long time under low temperature. The quality control product uses animal plasma as raw material, thus reducing thecost of the quality control and improving the safety of the quality control operations. The invention also discloses a preparation method of a kaolin reagent quality control product, which can preparethe kaolin reagent quality control product with accurate detection results and high stability. The preparation method is stable and reliable, the preparation process is simple and easy to operate, and the preparation method is suitable for the production and application of kaolin reagent quality control products.

The invention discloses an alliance chain anomaly detection system based on machine learning and a detection method thereof. According to the detection method, the detection system is arranged in an alliance chain network based on a PBFT consensus algorithm; according to time interval data of a single node prepart stage and a commit stage in the PBFT consensus process, whether abnormal nodes existin the alliance chain network or not is determined firstly, if the abnormal nodes exist, the abnormal nodes are further determined, and whether the abnormal nodes exist in the alliance chain networkor not can be rapidly and accurately detected; two times of anomaly detection are adopted, it is ensured that under the condition that the abnormal nodes in the alliance chain are determined, resourceoccupation of the anomaly detection system is reduced, whether the abnormal nodes exist in the alliance chain network or not is detected through data of a single node in the first anomaly detection,and the abnormal nodes in the alliance chain are determined through the second anomaly detection; according to the system, on the premise of ensuring the detection effectiveness and reliability, the problem of resource occupation is fully considered, and the resource occupation of the detection system is reduced.

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 drilling radar detector in-hole centering device which comprises a mounting frame, a conical barrel, a rubber barrel, a first connecting rod, a second connecting rod, a semicircular shell, a roller, a first spring, a first torsion spring, a driving mechanism and a guide mechanism. The conical barrel is fixedly connected among the four sides in the mounting frame; the guide mechanism is mounted in the circumferential direction of the outer side of the conical barrel; and the driving mechanism is mounted between the two sides of the mounting frame. According to the invention, a drilling radar is placed in the rubber barrel to be clamped, the drilling radar corresponds to a hole entrance, the driving mechanism is started, the driving mechanism does not limit the rubber barrel, the rubber barrel drives the drilling radar to move downwards into a hole under the action of gravity, and the roller is in contact with the inner wall of the hole to guide the rubber barrel, i.e., the drilling radar is guided, so that the influence of swing of the drilling radar on a detection result can be avoided, and the drilling radar cannot be in contact with the inner wall of the hole to cause abrasion.

The invention discloses an adjustable head-backward-leaning nasopharyngeal swab collection and examination chair, which relates to the field of medical instruments and comprises an auxiliary seat, and an auxiliary plate is arranged at the upper end of the auxiliary seat. By arranging the adjusting screw, the hinge sliding sleeve, the fixing rod, the adjusting rod, the upper hinge seat, the auxiliary plate and the connecting shaft, the auxiliary plate and the auxiliary seat form a qualified detected curve, then a detected person sits on the auxiliary seat, and then the sitting posture of the detected person is adjusted through the back cushion and the waist cushion arranged on the auxiliary seat; furthermore, the head of a detected person can automatically adapt to the interior of the groove formed in the auxiliary plate, the sitting posture of the detected person can be easily adjusted to be appropriate, the specimen collection process of medical staff is standardized, the situation that the detection result of the detected person is affected by the incorrect specimen collection process is avoided, and the detection efficiency is improved. And furthermore, clinical missed diagnosis and misdiagnosis are avoided, and the risk of exposure infection of medical personnel and the sampling difficulty are reduced.

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 invention discloses an on-line monitoring device for rapid drying of water-containing absorbentia. The on-line monitoring device comprises a workstation, a tension sensor, a drying oven, a connecting rod, a carrier and a sample tray. The tension sensor is fixed into a dust cover at the top of the drying oven, and a mass signal is transmitted to the workstation. From the inside of the drying oven, the upper side of the connecting rod is connected to the tension sensor and the lower side of the connecting rod is connected to the carrier. During a test, a sample is loaded into the mesh sampletray and placed on a hollow ring of the carrier for drying. When the mass is reduced to a threshold value, the workstation alarms and the sample tray is taken out. The on-line monitoring device not only has a high drying speed, but also avoids the volatilization of nitroglycerin in the sample, thereby improving the detection accuracy and safety.

The invention belongs to the field of pH detection and particularly relates to a pH detection system and a method. The pH detection system comprises a feed device, a liquid preparation device, a pH detection device, a manipulator device and a control device, wherein the feed device is used for feeding soil to a reagent bottle on a weighing device; the liquid preparation device is used for adding corresponding adaptive liquid to the reagent bottle to form a detection liquid; the pH detection device is used for detecting pH of a to-be-detected liquid; the manipulator device is used for moving the reagent bottle between the devices; the control device is connected with controlled ends of the feed device, the liquid preparation device, the pH detection device and the manipulator device. The pHdetection system has the following advantages: precise soil feeding is realized by the feed device, automatic feeding of the adaptive liquid is realized by the liquid preparation device, a soil mixedsolution is detected automatically by the pH detection device, the reagent bottle is moved between the devices by the manipulator device, and mechanical technique support is provided for automatic pHdetection of solids on the basis of the prior art.

The invention relates to a control system of an automatic hydraulic torque wrench testing device. The control system comprises a detecting system monitoring upper computer, a detecting system PLC (programmable logic controller), a detecting device torque sensor, a hydraulic pump station pressure sensor, a hydraulic pump station servo motor and an emergency stop button. By a hydrodynamic wrench testing device control system, automatic hydraulic wrench testing is realized, influences caused by human factors to hydraulic wrenches are avoided, and accordingly detecting efficiency and detecting precision of the hydraulic wrenches are improved.

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.

The invention discloses a high-altitude operation platform based on PLC control, and relates to the technical field of cable line inspection and maintenance operation platforms. The high-altitude operation platform based on PLC control comprises a baseplate, a supporting rod group, a lead screw, power modules, a control device, front and rear slide base, a PLC and slide rails. The power modules include the PLC, a gear resistor, a small power supply, a lighting resistor, a deceleration motor, a power switch, a gear switch, a sudden stop relay, a pressure relay and a distance relay. The input end COM interface of the PLC is connected with the power switch circuit. The output end COM interface of the PLC is connected with the switch interface circuit of the sudden stop relay. The supporting rod group includes supporting rods and synchronization rods. PLC control is adopted, and the operation platform is stable in elevating, high in control precision and safe to use; the elevating distance of the platform is automatically measured, and the power supply of a speed reducer can be automatically cut off when the highest safety height is exceeded so that danger can be avoided; and the pressure relay is adopted to sense existence of operators on the floor of the platform so that misoperation can be avoided.