36results about How to "Reliable sampling" patented technology

Disclosed is a composition for the separation of a serum or plasma, which comprises a cyclopentadiene oligomer, can be used for separating a serum or plasma by utilizing the difference in specific gravity among blood components, and enables to provide a serum or plasma having no oily component floating therein after centrifugal separation. The composition comprises a trimellitic acid ester and / or a pyromellitate ester and a cyclopentadiene oligomer. Alternatively, the composition comprises an aromatic esterified compound and a cyclopentadiene oligomer as the main ingredients and additionally comprises an inorganic micropowder and an organic gelling agent as thixotropy-imparting agents, wherein the organic gelling agent is contained in an amount of less than 0.06 parts by weight relative to 100 parts by weight of the cyclopentadiene oligomer.

The invention discloses a fish and plankton collection trawl which comprises a net and a support fixed to the opening of the net. A cod-end is arranged at the bottom of the net; an intercepting device covering the opening of the net is arranged in the support; a plurality of floating balls and iron balls which are detachable are arranged on the side surface of the support; tow lines are arranged at the edge of the support. The fish and plankton collection trawl can realize accurate collection of fish and plankton at different water levels.

The invention discloses an automatic blockage removal system and a blockage removal method for a sampling hole of a converter vaporization flue. One ends of a purge pipeline, a purge drive pipeline, a sampling drive pipeline, a needle drive pipeline and a valve group drive pipeline are respectively connected with a nitrogen input pipeline. The other end of the purge line is connected to the sampling line, the other end of the purge drive line is connected to the purge line, the other end of the sampling drive line is connected to the sampling line, the other end of the needle drive line is connected to the needle, and the other end of the valve group drive line is connected to the sampling hole control. Valve group, the position of the needle is opposite to the sampling hole control valve group, the other end of the sampling hole control valve group is connected to the sampling hole of the converter vaporization flue, and the needle, the sampling hole control valve group and the converter vaporization flue sampling hole are on the same axis Above, one end of the sampling line is connected to the sampling hole of the converter vaporization flue, and the other end of the sampling line is connected to the PT detection instrument. .

The invention relates to an integrated safety index balanced reaction device which is characterized by comprising a box body and a controller, wherein the box body is internally provided with a to-be-detected water sample chamber and a balanced reaction chamber which are separated by a partition plate; a liquid level control alarm is hoisted on a box cover; a water sample overflow opening is formed in the upper part of the partition plate; a calcium carbonate particle filler module wrapped by a filter screen is arranged in the balanced reaction chamber; the box body is provided with a water sample inlet and a water sample outlet of the to-be-detected water sample chamber; a water sample inlet of the to-be-detected water sample chamber is connected with a water sample source by virtue of a water sample inlet electromagnetic valve and a manual flow adjusting valve; a water sample outlet of the to-be-detected water sample chamber is connected with a pre-filter sampling tube by virtue of a water sample outlet electromagnetic valve; a limiting overflow pipe is arranged in the balanced reaction chamber; a post-filter sampling opening of the balanced reaction chamber is connected with a post-filter sampling tube by virtue of a post-filter sampling electromagnetic valve; the controller is electrically connected with the liquid level control alarm, the water sample inlet electromagnetic valve, the water sample outlet electromagnetic valve and the post-filter sampling electromagnetic valve respectively. The device has the advantages of being reasonable in structure, true and reliable to sample, convenient to maintain, long in service life and the like.

A marine microsurface sampling method, comprising: step S1: placing the sampling device at a working position above the sea surface; step S2; determining the lowest position, the highest position and the running speed of the collection board; step S3: driving the collection board perpendicular to the sea surface by the lifting system Face down to the lowest position; Step S4: The lifting system drives the collection plate to move upwards to the highest position perpendicular to the sea surface. When the collection plate moves to the highest position, the driving mechanism drives the liquid collection tank to rotate, so that the top of the liquid collection tank is close to the glass plate. One side is close to the glass plate; Step S5: The lifting system drives the collection plate to move downward perpendicular to the sea surface to the lowest position. During the descent, the side of the top of the liquid collection tank that is close to the glass plate scrapes the liquid on the surface of the glass plate for liquid collection. The liquid is collected into the collection tank, and the liquid in the collection tank is diverted into the collection bottle; Step S6: Stop sampling; this sampling method has a high degree of automation, high sampling efficiency, and ideal sampling thickness, which can meet the needs of scientists.

An improved data recovery circuit based on an oversampling technique to select the best data sample to be kept as the data to recover that is only based on accumulating the data edges (or transitions). The incoming serial data stream with jitter is oversampled in an oversampling circuit by means of the multiple phases of a reference clock (clk) to produce data samples. Each sample is compared to the sample(s) collected with the next clock phase(s) in an edge detector circuit to determine the presence of a data edge and the edge information is stored and accumulated in a data edge memory. A selection determination circuit uses the memorized edge information to indicate which sample is the farthest from the data edges. A selection validation circuit validates the selection to avoid false determination due to jitter and skew.

The invention relates to a device and method for measuring the solid content of a solid-liquid system, and belongs to the technical field of process control in chemical production. The method comprises the following steps: quantitatively sampling a solid-liquid mixture to be detected in a container by a metering pump, injecting the sample into a measuring pipe provided with a jacket layer under the assistance of an electromagnetic valve, allowing the measuring pipe to stand still to carry out layering; making a signal generator and a signal receiver move along the measuring pipe at a constant speed, recording the power change of laser that penetrates the measuring pipe, determining the corresponding volumes of solid and liquid according to the power change, and finally calculating the solid content of the solid-liquid system. The device has the advantages of simple structure, reliable operation, convenient maintenance, direct measuring process, high reliability, and wide application range; can be used to measure the solid content under a normal pressure at a room temperature, and can also be applied to chemical process control and monitoring under a high pressure at a high temperature.

The invention provides a solution sampling stirrer which comprises a solution storage tank, wherein a first gas distributor is arranged at the bottom of the solution storage tank, an output end of the first gas distributor is connected with an input end of a gas liquid separator, a liquid outlet pipe is arranged at the bottom end of the gas liquid separator, a hopper is arranged right below a pipe opening of the liquid outlet pipe, and a gas outlet end at the top of the gas liquid separator is connected with an input end of a second gas distributor in the middle part of the solution storage tank. The air or the nitrogen is used as power to exchange the gas in the first gas distributor with a solution, so that the solution is lifted to and separated in the gas liquid separator and then serves as a sample for sampling analysis, the sampling operation is convenient, safe and reliable, and meanwhile, the bottom part and the upper part of the solution storage tank are stirred through the gas distributors, so that the contents of the component in upper and lower parts of the solution are the same, and then the sampling analysis result is reliable.

A sampling device for a molten metal to be poured into a casting mold according to an embodiment of the present invention is a sampling device that is mounted on an automatic pouring device that pours molten metal within a ladle into the casting mold and samples the molten metal within the ladle. The sampling device is provided with: a molten metal receiving vessel; a movable frame in which the molten metal receiving vessel is installed; and a drive unit that drives the movable frame and transports the molten metal receiving vessel to a molten metal receiving position for receiving the molten metal from the ladle.

The invention discloses an automatic sampling manipulator for a bearing ring part and a sampling method, and relates to the technical field of advanced manufacturing and automation. The automatic sampling manipulator comprises a control unit, a rack, a moving beam which is arranged blow the rack, a manipulator body which is arranged below the moving beam, a sucking device arranged at the end partof the manipulator body, and a pair of clamping claws, wherein the moving beam is connected to the rack through a first guide rail; the manipulator body is connected to the moving beam through a second guide rail; the manipulator body is connected to the second guide rail through a lifting device. According to the automatic sampling manipulator, a product in an annealing frame is automatically sampled, so that the sampling position can be accurately controlled; the sampling process is reliable and high in automation degree, and manual interference is avoided, so that mis-operation is avoided;the sucking device and the clamping claws are specially designed for an annular bearing ring, the bearing ring is sucked, and then the clamping claws pass through the bearing ring, so that the grabbing reliability is ensured, and the error rate is extremely low.

The invention relates to a sterilizing and sampling integrated valve. The sterilizing and sampling integrated valve is characterized by being composed of a valve body and two valve cores, the valve body is composed of a valve cavity formed by multiple passages, a one-way tank discharging port, a two-way steam port and a three-way sampling port, the valve cores include a valve core A and a valve core B, the valve core A is a slide-valve-type main valve core, the valve core B is a sampling port valve core, and the valve core A is provided with three moving positions including a left position, a middle position and a right position. By the sterilizing and sampling integrated valve, control on the sterilizing and sampling process of a conventional bioreactor fermentation tank is simplified; various valves are integrated into a valve and can be controlled in a centralized manner.

The invention discloses a device for detecting pollutants in drinking water sources based on gradient sampling, and belongs to the technical field of water quality detection equipment. It mainly includes detection body, gradient sampling element, water sample holding element, water sample detection element, controller, power supply, gradient sampling element includes mounting frame, gradient sampling head, sampling head extrusion sleeve, gradient sampling head includes extrusion water cover , filter cover, support horizontal and vertical rods, water-absorbing sponge balls, and propellers; by controlling different numbers of micro-drive motors on each gradient sampling head to work, the number of micro-drive motors on each gradient sampling head that is in working condition is presented. The gradient increases, so that the propeller generates a gradient-increasing driving force for each gradient sampling head to complete the sampling of water sources at different depths, so that the sampling of water sources is reliable and representative, and the accuracy of detection results is increased; the present invention has reliable sampling , accurate detection, and intelligent integration are suitable for mass promotion.

The invention discloses an automatic dredging system and a dredging method for a sampling hole of a converter vaporization flue, comprising a valve group control pipeline, a dredging device control pipeline, a sampling hole control valve group, a dredging device (6) and a control assembly. One end of the valve group control pipeline is connected to the nitrogen input pipeline, the other end of the valve group control pipeline is connected to the sampling hole control valve group, one end of the described dredging device control pipeline is connected to the nitrogen input pipeline, and the other end of the dredging device control pipeline is connected to the dredging device (6). ), the dredging device (6) is located opposite to the sampling hole control valve group, the sampling hole control valve group is connected to the sampling hole of the converter vaporization flue, and the dredging device (6), the sampling hole control valve group and the converter vaporization flue The sampling holes are on the same axis, and the valve group control line, the dredger control line and the nitrogen input line are respectively electrically connected with the control assembly.