103results about How to "Stable sampling" patented technology

The invention discloses a gas circuit system for measuring automotive tail gas in real time, mainly comprising a sampling system, a water draining system, a gas exhausting system, a zero calibration system and a standard sample calibration system. The automotive tail gas is sampled in real time by the sampling system, thick particles in the sampled automotive tail gas is filtered out after the sampled automotive tail gas sequentially passes through the water draining system and the gas exhausting system, and simultaneously water and gas separation is realized to obtain the dried tail gas; the secondary filtering is carried out after the dried tail gas passes through the gas exhausting system to obtain the purified tail gas; the obtained purified tail gas is introduced into a non-scattering infrared measuring system to be performed with indicator detection, such as the concentrations of carbonic oxide, carbon dioxide and carbon hydrogen compound and the like; and additionally, the standard calibration and the zero calibration of the system can be realized by the zero calibration system and the standard sample calibration system so as to ensure the measuring precision. The gas circuit system of the invention has the advantages of stable, accurate and well-repeatable sampling, safety, reliability and the like.

The invention relates to a robot suitable for underwater cruising and seabed crawling. The robot comprises an underwater cruising module and a seabed crawling module; the underwater cruising module comprises a left wing panel, a right wing panel, a front horizontal sealed cabin, a rear horizontal sealed cabin, an electronic cabin, a vertical thruster, a left longitudinal suction and drain tank, aright longitudinal suction and drain tank and a horizontal differential thruster; the seabed crawling module comprises a support structure and a plurality of mechanical legs; the underwater cruising module is arranged on the support structure; and each mechanical leg surrounds the support structure, and one ends of the mechanical legs are rotatably connected with the support structure. The robot can cruise quickly in the ocean or crawl stably on the seabed, and integrates the high-efficiency and wide-range mobile abilities of a cruising type underwater robot and the precise mobile operation ability and the anti-ocean-current ability of a crawling type underwater robot.

The invention belongs to the technical field of soil sampling, in particular to a bioscience soil sampling detection device. Since existing soil sampling devices cannot sample soil of different depthsat the same time, the use is inconvenient. Presented are solutions, the device comprises a plate body and a first sliding rod, a first through hole is formed in the middle of the top end of the platebody; a fixing ring is arranged at the first through hole of the plate body; a circular through hole is formed in the middle of the fixing ring, the first sliding rod is slidably connected with the fixing ring at the circular through hole, a second through hole is formed in one side of the plate body, a motor is fixedly installed at the second through hole of the plate body, a rotating cylinder is rotatably connected to the bottom end of the first sliding rod, and three sliding boxes are arranged in the rotating cylinder. The rotary drum is driven by the motor to rotate into soil, soil of different depths can enter the sampling box through sliding of the sliding box, and therefore soil of different depths can be sampled at the same time, and data are more accurate during soil detection.

The invention discloses a PLC control system, which comprises a PLC and a plurality of extension modules, wherein the PLC is cascaded with the plurality of extension modules by adopting extension buses; the PLC comprises a microprocessor and a first extension bus transceiver, the microprocessor is used for controlling communication between the PLC and the plurality of extension modules, and the first extension bus transceiver is used for exchanging data with the first stage extension module through a PLC rear bus interface; and each extension module comprises an extension microprocessor and a second extension bus transceiver, the extension microprocessor is used for controlling communication between the extension module and the PLC, and the second extension bus transceiver is used for exchanging data with the previous stage extension module or the PLC through a corresponding stage front bus interface and exchanging data with the next stage extension module through a corresponding stage rear bus interface. The invention further discloses a corresponding PLC extension bus implementation method. Through implementing the technical scheme of the invention, the speed of a PLC extension bus can be increased, the cost is reduced, and the anti-interference capability in the sampling process is high.

The invention discloses a sampling device for soft soil area reconnaissance and detection, related to the field of environment detection devices. The sampling device comprises a support base and standbars, a sampling head is arranged under the support base, and an upper end face is provided with an air cylinder for driving the sampling head to move; a side wall of the sampling head is verticallyprovided with a groove, and a switch board is vertically connected in the groove in a sliding manner; the inside of the sampling head is provided with a cavity, a bottom wall of the groove is providedwith a plurality of sliding holes communicated with the cavity at intervals, and the inside of each sliding hole is horizontally connected with a sampling tube in a sliding manner; one end, facing towards the groove, of the sampling tube is opening; and a driving mechanism for driving the sampling tube to slide horizontally is arranged in the cavity. The sampling device provided by the inventionhas the following advantages and effects: a plurality of sampling tubes at different altitudes are arranged, thus, synchronous sampling of soil layers of different depth is realized, sampling times isreduced, meanwhile, labor intensity of workers is reduced greatly, and the effect of conveniently acquiring soil layer samples of different depth is realized.

Disclosed herein is a display apparatus including: a pixel array; and a driver configured to drive the pixel array. The pixel array including rows of scanning lines, columns of signal lines, a matrix of pixels disposed at crossings of the scanning lines and the signal lines, and feeding lines associated with respective rows of the pixels, the pixels including respective sampling transistors having respective gates connected to the scanning lines, the driver including a main scanner configured to supply control signals to the scanning lines, the main scanner including a shift register, output buffers connected respectively between the shift register and the scanning lines, and a pulse power supply configured to supply power supply pulses, each having a predetermined pulse duration, to the output buffers, wherein the main scanner outputs power supply pulses supplied from the pulse power supply as the control signals to the respective scanning lines in response to a shift pulse output from the shift register.

Relating to the technical field of garden equipment, the invention discloses garden sampling equipment and a working method thereof. The equipment includes an outer frame, a top frame is fixedly connected to the left side at the top of the outer frame, the bottom of the top frame inner wall is in sliding connection with a load plate, the left side of the load plate runs through the top frame and extends to the outside of the top frame. The garden sampling equipment based on the Internet of Things facilitates downward movement of devices, so that a sampling device can well enter the soil without manual operation, the labor amount of people is alleviated, soil sampling becomes convenient, and the sampling process is stable, at the same time the equipment is convenient for taking out of the sampled soil, can well insert devices into the ground for fixation, prevents device collapse in the sampling process, improves the device stability, also can achieve timely preliminary analysis of thecollected soil samples, and subjects the analysis result to remote transmission, is convenient for testers to know the soil information in time, and facilitates the arrangement of the follow-up work.

The invention discloses a centrifugal type high-temperature sampling probe system. An inlet of a high-temperature sampling probe is connected with a flue; an outlet of the high-temperature sampling probe is connected with an inlet of a centrifugal helical rail; an inertia gas-dust separator consists of a T-shaped pipe and an isolation pipe; the isolation pipe is inserted into one end of a transverse pipe of the T-shaped pipe and is sleeved by the transverse pipe of the T-shaped pipe; the outer end of the isolation pipe is connected with an outlet of the centrifugal helical rail; the inner end of the isolation pipe is positioned at a joint of the transverse pipe and a vertical pipe of the T-shaped pipe; an inclined incision is formed in the inner end of the isolation pipe; the back surface of the inclined incision is just opposite to the vertical pipe of the T-shaped pipe; an ejector is mounted at the other end of the transverse pipe of the T-shaped pipe; an ejection pipe connected with compressed air is arranged in the ejector; an outlet of the ejector is connected to the flue; an inertia filter is mounted in the vertical pipe of the T-shaped pipe; the vertical pipe is connected with one end of a three-way pipe, another end of the three-way pipe is connected with back purging gas through a valve, and a valve, a fine filter and a gas extraction pump are mounted at the third end of the three-way pipe in sequence. The centrifugal type high-temperature sampling probe system can fulfill the aim of long-time stable sampling.

The invention provides a multi-station automatic sampling inspection and production returning method based on an AGV. The method comprises the following steps: step 1, conveying a workpiece to a to-be-inspected area; step 2, enabling the AGV to convey the workpiece from the to-be-inspected area to an inspection area; step 3, enabling an inspection device to inspect the workpiece; if the workpieceis inspected to be qualified, entering the step 4; and if the workpiece is inspected to be unqualified, entering the step 5; step 4, returning the workpiece for production; and step 5, alarming to prompt and performing waste disposal on the unqualified workpiece. The multi-station automatic sampling inspection and production returning method have the following advantages: with the utilization of an AGV trolley, the automation and intellectualization of a to-be-inspected workpiece in an entire process from submission to production returning are completed; by introducing an MES system, the individual inspection and information summarization of a workpiece having different requirements for different stations are guaranteed; and with the utilization of an RFID technology, the whole-process monitoring on a single to-be-inspected workpiece is implemented. Therefore, the defects of low efficiency, relatively large fault tracking difficulty, large manpower cost investment, relatively high demand on experience of a technician and the like in the traditional sampling inspection and production returning scheme are solved.

The invention discloses a manufacture technology for an anti-corrosion, low-cost, refined and environment-friendly stainless steel wire. The manufacture technology comprises the technological steps that ingredients including ferrochrome and ferronickel are used; the ingredients are successively put into an electric arc furnace for heating and melting; contents of each of the elements are detected,and temperature preservation is conducted during detection; each of the chemical ingredients is adjusted again according to detection results; then, slagging is conducted; and slagging-off and steeltapping are carried out when a furnace temperature reaches 1650 DEG C; a spiral flow duct of which the height is lower than the bottom wall of a furnace cavity is disposed at an outlet of the electricarc furnace; the detected elements include C, Si, Mn, Cr, Ni, P and S; after entry of molten steel in a primary forging furnace, a mixed gas of Ar (N2) + O2 is blown into the furnace, the content ofN is detected, and a blowing process is divided into an oxidation stage, a reduction stage and a refinement stage; continuous casting is carried out; and the wire is manufactured after continuous rolling. The manufacture technology disclosed by the invention has the beneficial effects that the molten steel with the uniform ingredients can be obtained through opening or closing of a molten steel valve during molten steel taking, so accuracy of the detection results is increased, cost is reduced and production efficiency is increased; and on the premise that stainlessness is not reduced, the content of Ni is reduced, but a corrosion resisting rate is increased.

The invention discloses a method and device for realizing an SDH optical interface of STM-1 by employing an oversampling method. The method comprises (1), a sending path that an STM-1 transceiver generates STM-1 data frames under clock frequency of 19.44 M, conversion of a clock domain from 19.44 M to 38.88 M is carried out on the data frames through a sending clock domain converter, under the clock frequency of 38.88 M, each piece of 1-bit data is copied into 4-bit data through a sending data bit width converter, the data is sent to an STM-4 optical interface module for sending; and a receiving path that STM-1 signals from an STM-4 optical interface are received, oversampling of four times per level is carried out on the signals under the clock frequency of 38.88 M, an STM-1 frame header is found, conversion from 4-bit to 1-bit is carried out on the data, the data is converted into signals under the 19.44 M through a receiving clock domain converter, and the signals are sent to the STM-1 transceiver for frame decoding.

A sampler is provided for melts, in particular for slags lying on a molten metal, the sampler having a single- or multi-part body for arrangement in a support. The sampler has an inlet and a sample chamber with two opposing chamber walls, wherein an inlet opening is arranged in one chamber wall. In order to make possible homogeneous and stable samples, an intermediate plate with at least one through opening is arranged inside of the sample chamber spaced from the chamber walls.

The invention discloses an automatic sampling surface density measurement mechanism for a gypsum board production line. The mechanism comprises a set of horizontal moving air cylinder system, a set ofvertical lifting moving air cylinder system and a set of weight measuring system; the vertical lifting moving air cylinder system is connected to the horizontal moving air cylinder system in a sliding manner; the weight measuring system is mounted at the top end of the lifting moving air cylinder system and is used for detecting the weight of a sample; the weight measuring system comprises a sampling weighing platform; a plurality of weight sensors used for detecting the weight of the sample are arranged on the sampling weighing platform; and a sample cleaning mechanism is further mounted onthe sampling weighing platform. The sample can be automatically taken out on the high-speed production line to measure the surface density, so that the operation process of measuring the surface density by manual sampling at present is replaced; and the sample can be automatically cleaned, so that the accuracy of a surface density detection result can be improved.

The invention discloses an automatic sampling device for building site construction soil. The automatic sampling device for building site construction soil comprises a base; the outer end of the baseis movably connected with a scaffold through a rotating shaft; the middle of the upper end of the base is fixedly connected with a motor; the rotating shaft end at the lower end of the motor is fixedly connected with a threaded barrel through a rotary shaft; an inner cavity of the threaded barrel is in threaded connection with a nut; the lower end of the nut fixedly communicates with a sampling barrel; the lower end of the sampling barrel is fixedly connected with a blade drill; a push plate is movably inserted at the upper end of an inner cavity of the sampling barrel; a push rod is fixedly connected to the upper end of the push plate; the upper end of the push rod movably penetrates through the base and is fixedly connected with a fixing ring; and a buckle is fixedly connected to the upper end of the base through a fastening bolt. Through arrangement of the motor, the threaded barrel, the nut, the sampling barrel, the push rod, the fixing ring and the buckle, the effect of convenient, quick, time-saving and labor-saving sampling is achieved by starting the motor and using the buckle.

The present invention discloses a soil sampling mechanism for geological exploration and a using method thereof. The soil sampling mechanism comprises a working box and a lifting seat fixed in an inner cavity of the working box, the surface of the working box is fixedly connected with a first fixing seat and a second fixing seat from top to bottom, and the top of the first fixing seat is in threaded connection with a supporting rod. The invention relates to the technical field of soil sampling. According to the soil sampling mechanism for geological exploration and the using method thereof, the conveying wheel is retracted through the electric push rod, then the rotating disc on the surface of the supporting rod is rotated, the rotating disc drives the supporting rod to rotate, and the supporting rod rotates in the first fixing base and the second fixing base to move up and down and drive the supporting base at the bottom to move up and down to keep the working box perpendicular to the ground; and the inserting pins are inserted into the ground, and the working box is limited by inserting the inserting pins into the ground, so that the device can be suitable for sampling on the ground with various gradients, the fixation is firmer, the sampling is more stable, and the effect is good.

The invention belongs to the technical field of electric automatization and especially relates to a substation overvoltage monitoring system and method based on wireless acquisition technology. The system comprises two portions: a test probe portion and a receiving probe portion. Through an AD converter circuit, an analog signal is allowed to be converted into a digital signal stably, and through high-speed analog acquisition in ARM, a good record of detail portions of an original signal is made; stable sampling of an analog sampling circuit is realized; a good energy saving effect is achieved; the system can prevent influence of high-voltage electric field parameter changes, and has good static and dynamic performance; wireless detection of test results is realized, thereby preventing tedious coaxial cable wiring on test sites and preventing the latent possibility of personal electric shock due to wired test of high-voltage equipment; test data is accurate and reliable; an original hardware transformation link of the overvoltage signal is simplified, and flexibility of the whole machine is improved; and the device can be widely produced as a product, and is highly profitable.

The invention discloses a non-contact type three-phase current detection system. The system comprises an induced loop current sampling unit, a magnetic induction sampling unit, a current shaping unit,a signal processing unit and a current monitoring unit; the magnetic induction sampling unit is a magnetic induction chip and is matched with the current sampling unit, and the magnetic induction sampling unit is used for inducing the three-phase current acquired by the induced loop current sampling unit; the current shaping unit is used for shaping the three-phase current sensed by the magneticinduction sampling unit; the signal processing unit is used for performing analog-to-digital conversion and filtering processing on the shaped three-phase current; and the current monitoring unit is used for verifying the three-phase current processed by the signal processing unit according to a preset current error. The non-contact three-phase current detection system provided by the invention not only is simpler in structure, but also can realize accurate and stable sampling and verification diagnosis of the three-phase current, and is better in performance.

The invention discloses a geotechnical sampling device for geotechnical engineering, a vertical stand column is installed on the ground through a supporting device, a driving device drives a sampling drilling barrel to conduct rotary sampling, the sampling drilling barrel shakes with rock-soil in the sampling process, then a driving base is driven to shake, a horizontal supporting frame drives a guiding sliding block to slide up and down in the guiding sliding rail, the guiding sliding block extrudes the damping hydraulic rod in the sliding process, and the bottom of the damping hydraulic rod and the buffering piston slide in the buffering air cylinder together. Due to the fact that gas in the buffer air cylinder is extruded through sliding of the buffer piston, sliding of the guide sliding block is slowed down, shaking of the driving base and the sampling drill barrel is slowed down, the rock and soil sampling process of the sampling drill barrel is more stable, and gravel in sampled rock and soil is prevented from being mixed.

The invention discloses a water-sediment interface water sample sampling system and a sampling method thereof. The water-sediment interface water sample sampling system comprises a surface water bodysampling device and a shallow pore water sampling device, the surface water body sampling device comprises a vacuum sampling pipe for collecting a surface water sample; a filter screen for filtering impurities is arranged at the head of the sampling pipe; a telescopic needle head is connected with the sampling pipe; the needle head is connected and fixed on a vertical iron rod; the top and the middle part of the iron rod are connected with a high-strength rubber band and a compressed spring, the tail part of the sampling pipe is provided with a plug and a wood rod for sealing and stably and vertically distributing the vacuum sampling pipe, a pair of welded electromagnets is arranged on a base and the top of the surface water body sampling device, and a rubber cylindrical mold with two openends is arranged beside the electromagnets. In combination with the mechanical automation principle, simultaneous sampling of water samples (surface water and shallow pore water) on the water-sediment interface is achieved through reasonable structural design, and the device is wide in application, high in automation degree, economical and capable of greatly saving the manual sampling cost.