36results about How to "Reliable sampling" patented technology

A needle set for a biopsy device is disclosed. The needle set includes an outer member, a cylinder lumen within said outer member, an inner member having a cannula and an inner lumen. The inner member is slidably disposed within the cylinder lumen. The biopsy device also includes a cylinder seal member that is disposed within the cylinder lumen and a cannula seal member attached to the outer surface of the cannula. The cylinder seal member and the cannula seal member define a vacuum chamber therebetween.

The invention discloses a liquid pressure-maintaining and sampling tube which comprises a connector, two cavities and two sampling valves, wherein the two cavities are respectively connected with the two ends of the connector; a communicating hole is formed in the connector and communicated with the two cavities, and ladder-shaped through holes are an outer end hole, a sealing hole, a flow guide groove and a flow guide hole from outside to inside in sequence and are formed in the two cavities; each sampling valve is composed of a valve body, a sealing shaft and a valve rod which are connected in sequence, matched with the corresponding ladder-shaped through hole through threads and fixed in the ladder-shaped through hole, each sealing shaft is in close fit with the corresponding sealing hole, a ball is propped against the end part of each flow guide hole, and pistons are respectively arranged in the two cavities. The liquid pressure-maintaining and sampling tube disclosed by the invention can realize spontaneous sampling without an additional drive device, is simple in structure, convenient to operate, good in pressure-maintaining property and reliable in sampling and can be recycled.

The coal slurry reactant sampling device includes one sampling container connected through pipes with valves to the material conveying pipeline; solvent oil pipes with valve; hydrogen pipes; one gas sampling pipe in the upper part of the sampling container; one sampling pipe in the lower part of the sampling container; and one inert gas pipe communicated to the sampling container. The coal slurry reactant sampling device is accurate and reliable in sampling, convenient and safe in operation, and can sampling repeatedly.

A soil sampling system includes a rig for driving a drive casing, a sample barrel, and sample liners simultaneously into soil to be sampled. The rig includes mechanisms for driving the casing, barrel, and lining in three modes: hydraulic hammer, continuous pressure, and vibration. The three drive mechanisms can be operated singly or in any combination. After the casing, barrel, and liners are advanced a selected depth into the soil, the barrel and liners are removed. The drive casing remains in the soil. New sample liners are put into the sample barrel, and an inner rod is attached to the sample barrel. The sample barrel is then replaced into the drive casing, and extensions are attached to the drive casing. The drive casing, including extensions, and the sample barrels, along with sample liners and inner rod, are driven further down into the soil. The rig also includes a winch that can be coupled to the inner rod or sample barrel so that the casing and / or barrel (including sample liners) can be retrieved from the drive casing. A clamp system allows the sampler to be hydraulically retracted from the ground when sampling is finished.

The invention discloses a sampling device used in the alimentary tract. The sampling device comprises a base and a slider, and the slider is in sliding butted connection with the base form a capsule body; a camera module is integrated in the base; permanent magnets are integrated in the base and the slider respectively, and the magnetic poles of the permanent magnets between the base and the slider neutralize each other. Butted connection and fastening between the base and the slider are achieved through a stretched elastic connection piece, and the elastic tension force of the elastic connection piece is larger than the magnetic force between the first permanent magnet and the second permanent magnet; the end, in butted connection with the base, of the slider is provided with a sampling knife blade, and the insides of the base and the slider are connected to form a sample storing cavity. According to the sampling device, the design of an existing capsule type sampling mechanism is improved for the defects in the prior art, it is achieved that an associated object of a lesion area in the alimentary tract is sampled, the discomfort of the human body is greatly reduced, the area where sampling is conducted without a surgical operation in the alimentary tract is further expanded, the sampling process is more reliable, and the aim of full alimentary tract sampling is more approached.

The invention relates to an automatic sampling device of a dissolution tester. The automatic sampling device comprises a multi-channel valve group, wherein the multi-channel valve group comprises fivebranches; a power pump is connected with a public channel of the multi-channel valve group; a sampling needle is connected with the first branch of the multi-channel valve group; a dissolution cup isconnected with the second branch of the multi-channel valve group; a sample injection needle is connected with the third branch of the multi-channel valve group; a liquid supplementing groove is connected with the fourth branch of the multi-channel valve group through a liquid supplementing pipeline; the fifth branch of the multi-channel valve group is communicated with external air. According tothe automatic sampling device of the dissolution tester, provided by the invention, the power pump can be communicated with the corresponding pipeline under different conditions; in an automatic sampling process of a dissolution experiment, operation including automatic sampling, automatic liquid supplementing, automatic pipeline emptying, automatic pipeline washing and the like can be rapidly and accurately finished; sampling requirements of pharmacopeia on the dissolution experiment are met; accurate, reliable and efficient sampling is realized, and a condition that a sample is polluted byadjacent sampling points is avoided.

The invention relates to a vacuum fixed-depth sampler, which is provided with a cylinder (1). An upper sealing cover (2) is arranged at the upper end of the cylinder (1), a pipe joint (3) is disposed on the upper sealing cover (2), an air inlet and outlet pipe (4) is disposed on the pipe joint (3), an air charge and vent valve (6) is arranged at the end of the air inlet and outlet pipe (4), a lower sealing cover (8) is disposed at the lower end of the cylinder (1), a shaft hole (9) and a water inlet hole (10) are arranged on the lower sealing cover (8), the shaft hole (9) is fittingly provided with a hinge pin (11), a water inlet valve (12) is disposed at the upper end of the hinge pin (11), a counterweight limiting nut (13) is arranged at the lower end of the hinge pin (11), the hinge pin (11) can drive the water inlet valve (12) to move up and down, an elastic rubber capsule (15) is arranged in the cylinder (1), an opening of the elastic rubber capsule (15) is downwards fastened on the water inlet valve (12), the elastic rubber capsule (15) is compressed by compressed air in the cylinder (1), and bounces back after the compressed air is removed, and the elastic rubber capsule (15) rehabilitates, so that a certain vacuum degree is formed. The vacuum fixed-depth sampler is accurate and reliable in sampling, liquids cannot be mixed, and a water sample can be taken out at a required depth.

The invention relates to an apparatus and a method for cropping the ends of or for separating test pieces from rolled strip wound into bundles. An apparatus is disclosed which, by means of an outwardly pivotable bottom roller (2) and guide devices (5, 6, 7, 8, 13, 14) for guiding the strip end to the shears, also makes it possible to process strips which are thicker or of greater firmness and are wound into bundles (10). Furthermore, a method is specified, which allows a reliable sampling and, if appropriate, inspection of the sample from strips wound into bundles, a closed bundle being obtained again after sampling.

The invention discloses a water drill nondestructive sampling method of a cemented filling body. The method comprises the steps: firstly, a wedge-shaped groove is formed in the surface of the cemented filling body, then a cylinder sample is taken in the length direction of the wedge-shaped groove, and finally, the cylinder sample is taken out from the bottom of the wedge-shaped groove. The water drill nondestructive sampling method of the cemented filling body adopts a common tool, takes the sample in the surface of the filling body through the simple operation procedures, has the advantages of nondestructive and reliable sampling, good quality and high efficiency, and solves an industry difficult problem in the field.

The invention discloses a thin-film collection transmitting device of temperature signals. The thin-film collection transmitting device of the temperature signals comprises a thin temperature sensor and a planar transmission line, the thickness of the thin temperature sensor is less than 0.3mm, and the thickness of the planar transmission lines is less than 0.2mm. The planar transmission line comprises two flexible thin-film insulating layers and metal wires, input electrodes and output electrodes, wherein the metal wires, the input electrodes and the output electrodes are arranged between thetwo flexible thin-film insulating layers, the input electrodes are connected to one ends of the metal wires, the output electrodes are connected to the other ends of the metal wires, the output electrodes are connected with a processor, the input electrodes are connected with the thin temperature sensor, and the thin temperature sensor is wrapped by the two flexible thin-film insulating layers inan up and down mode. The thin-film collection transmitting device of the temperature signals is tiny in size, good in toughness, and is suitable for temperature detecting and transmitting in narrow and small space.

Process for vaporizing purge liquid from a cryogenic liquid vaporizer, the liquid containing at least one impurity, in which the purge liquid is withdrawn from a bath of liquid surrounding the vaporizer or resulting from the vaporizer, all of the purge liquid is vaporized in a heater, characterized in that the content of the at least one impurity in at least one portion, or even all of the heated vaporized liquid is analysed and the flow rate of at least one portion, or even all of the heated vaporized liquid is measured.

The invention provides a sampling device and method for environmental monitoring. The sampling device comprises a grip, a telescopic rod connected with the grip and a sampler mounted on the telescopic rod, an opening is formed in the rear end of the sampler, a plurality of pistons are arranged in the sampler, a plurality of water inlets are sequentially formed in the sampler at intervals, and a water inlet cover is arranged at each water inlet; a piston hand wheel and a water inlet cover hand wheel are arranged below the grip, a linkage limiting mechanism is correspondingly arranged behind part of the water inlet covers, and the linkage limiting mechanism is arranged to gradually limit the pistons at intervals when the pistons move from front to back, so that a plurality of independent water storage spaces are formed in the sampler. The sampling device can be used for extracting water samples at a plurality of specified depths at one time, and can be filled with water when sinking to the water bottom, so that the problems that the sampling quality is influenced by bubbles and the like are solved.

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 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 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.

The invention discloses an automatic unblocking system and an unblocking method for a sampling hole of a converter vaporization flue. One end of a purging pipeline, one end of a purging driving pipeline, one end of a sampling driving pipeline, one end of a poking needle driving pipeline and one end of a valve group driving pipeline are respectively connected with a nitrogen input pipeline, the other end of the purging pipeline is connected with a sampling pipeline, the other end of the purging driving pipeline is connected with the purging pipeline, the other end of the sampling driving pipeline is connected with the sampling pipeline, the other end of the poking needle driving pipeline is connected with a poking needle, the other end of the valve group driving pipeline is connected with a sampling hole control valve group, the poking needle is opposite to the sampling hole control valve group, and the other end of the sampling hole control valve group is connected with a converter vaporization flue sampling hole; The poking needle, the sampling hole control valve set and the converter vaporization flue sampling hole are located on the same axis, one end of the sampling pipeline is connected with the converter vaporization flue sampling hole, the other end of the sampling pipeline is connected with a PT detection instrument, and the purging driving pipeline, the sampling driving pipeline, the poking needle driving pipeline and the valve set driving pipeline are electrically connected with a control assembly.

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.

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

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 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 vacuum fixed-depth sampler, which is provided with a cylinder (1). An upper sealing cover (2) is arranged at the upper end of the cylinder (1), a pipe joint (3) is disposed on the upper sealing cover (2), an air inlet and outlet pipe (4) is disposed on the pipe joint (3), an air charge and vent valve (6) is arranged at the end of the air inlet and outlet pipe (4), a lower sealing cover (8) is disposed at the lower end of the cylinder (1), a shaft hole (9) and a water inlet hole (10) are arranged on the lower sealing cover (8), the shaft hole (9) is fittingly provided with a hinge pin (11), a water inlet valve (12) is disposed at the upper end of the hinge pin (11), a counterweight limiting nut (13) is arranged at the lower end of the hinge pin (11), the hinge pin (11) can drive the water inlet valve (12) to move up and down, an elastic rubber capsule (15) is arranged in the cylinder (1), an opening of the elastic rubber capsule (15) is downwards fastened on the water inlet valve (12), the elastic rubber capsule (15) is compressed by compressed air in the cylinder (1), and bounces back after the compressed air is removed, and the elastic rubber capsule (15) rehabilitates, so that a certain vacuum degree is formed. The vacuum fixed-depth sampler is accurate and reliable in sampling, liquids cannot be mixed, and a water sample can be taken out at a required depth.

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 an oil-immersed current transformer live-wire sampling device and a sampling method based thereon; the oil-immersed current transformer live-wire sampling device comprises a sampling valve communicated with a current transformer oil tank, the current transformer oil tan is connected with the sampling valve through a connection pipe, the sampling valve is covered with a protective hood, and the sampling valve is completely positioned within the protective hood. The sampling position of the sampling valve is lowered through the connection pipe, and safe and reliable sampling is achieved; through the protective hood, it is effectively avoided that mistaken touch for the sampling valve leads to contamination of the sampling valve or that oil leaks from a port of the sampling valve, and sampling analysis data is more accurate.

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.