24 results about "Sample integrity" patented technology

Configurations for a system, method, and device for determining test card status and / or sample integrity are disclosed. Determining test card status and / or sample integrity includes assessing the pressure measurements of a pumping system in a sample analyzer to determine a threshold. The sample integrity may be determined by comparing pressure measurements of the pumping system attached to a test card to a threshold, which may be related to whether the test card is an empty test card or a prefilled test card. The sample integrity may be determined to be intact when the test card is determined to be an empty test card, and the user may be prompted to inject a sample into the test card. The sample integrity may be determined to be compromised when the test card is determined to be a prefilled test card, and the user may be prompted to discard the test card.

The application discloses a FinFET structure slicing analysis method based on FIB and TEM, and relates to the technical field of semiconductor process detection and analysis. In order to solve the problem of the deficiency of traditional detection technology in resolution and accuracy caused by the complexity of the three-dimensional nano structure of the FinFET device, the application realizes high-precision analysis of the FinFET device by optimizing the whole process of sample pretreatment, FIB processing and TEM analysis. The application utilizes the combination of FIB accurate processing and TEM high-resolution imaging to accurately measure the fin structure morphology, multi-layer film thickness and composition distribution. The application reduces sample damage through processes such as PI conductive adhesive treatment and low-energy ion cleaning, and combines a dynamic parameter optimization mechanism to ensure the sample integrity in the processing and detection process. The application introduces three-dimensional reconstruction and structure-performance correlation analysis, which not only can stereoscopically present the structure characteristics of the FinFET, but also can simulate the influence of parameters such as fin pitch and gate coverage length on the device performance.

The utility model provides a kind of hydraulic engineering geological survey sampling device, it is related to hydrogeological engineering survey technical field, including cylinder, by coaxial setting upper sampling cavity, middle sampling cavity and lower sampling cavity constitute three-dimensional sampling space;Negative pressure source, it is communicated to each sampling cavity, directional negative pressure is formed when sampling.The utility model can realize high-precision stratified sampling without cross-contamination, by orthogonal distribution upper, middle and lower water inlet channel, make the water body of different depth in geological survey stationary surface water along independent path into corresponding sampling cavity, completely avoid interlayer mixing from physical structure, ensure stratified data authenticity;The utility model can optimize fluid flow, guarantee sample integrity and representativeness, the horn-shaped water inlet of anti-turbulence cover reduces flow velocity, combined with spiral guide flow channel, convert turbulent flow into stable laminar flow, reduce bubble disturbance and particulate matter settlement, significantly improve the originality of sample, meet high-precision water quality analysis demand.

This utility model discloses a sample storage device for food testing, belonging to the field of food testing. The sample storage device includes a housing; the inner wall of the support plate and the surface of the second limiting clamp are provided with a convenient loading and unloading mechanism; the surface of the top of the constant temperature chamber is provided with an anti-contamination mechanism; and the interior of the holding slot and the inner wall of the door are provided with a high-safety mechanism. This utility model not only improves the convenience and practicality of the sample storage device during use, allowing for air filtration into the housing to maintain sample integrity, but also ensures effective sample storage, preventing contamination and spoilage during sampling. Furthermore, it enables real-time monitoring of the operator's procedures, ensuring the safety of food sample storage.

The utility model relates to a belt conveyor head sampling machine relates to the technical field of bulk material sampling of cement, building material and other industries. In view of the problem that the sample integrity is poor due to material impact splashing in the existing belt conveyor head sampling, the equipment comprises a transmission mechanism, a C-shaped steel plate guide rail and a sampling mechanism, wherein the transmission mechanism realizes linear reciprocating motion by driving the transmission seat through the motor drive screw rod; the sampling mechanism is slidably connected with the inner wall of the guide rail through rollers, and baffle plates are arranged on both sides of the sampling plate; the transmission seat drives the sampling plate to slide in the guide rail through the transmission plate and connecting rod, so that the sampling plate high-speedly crosses the falling material flow of the material discharge port, the baffle plates on both sides synchronously block the transverse splashing and longitudinal overflow of the material, and the sufficient, complete and representative full-section material sample is ensured. The utility model realizes the problem of automatic sampling, significantly improves the sampling accuracy and safety, and is especially suitable for the belt conveyor head sampling of cement mixture and other materials.

The water quality sampling box comprises a box body, a box cover is movably hinged to the outer surface of the box body through a hinge, limiting sleeves which are arranged at equal intervals are fixedly connected to the inner wall of the box cover, a protective foam plate is fixedly connected to the interior of the box body, placing openings which are arranged at equal intervals are formed in the upper surface of the protective foam plate, and the protective foam plate is fixedly connected to the box body. A sampling bottle is arranged in each placing opening, a fixing plate is fixedly connected to the interior of the box body, and a buffer mechanism is arranged on the upper surface of the fixing plate. The protective foam plate is arranged in the box body, the placing opening in the protective foam plate can stably fix the sampling bottle, shaking and collision in the transportation process are effectively prevented, the buffer mechanism adopts a supporting seat supported by a spring, elastic buffering is provided when the sampling box moves or is impacted, the damage risk of the sampling bottle is further reduced, and the integrity of a sample is ensured; the limiting sleeve and the supporting seat are used for dual fixation, so that the sampling bottles are kept in a vertical state in the box and are prevented from toppling or colliding with each other.

The invention relates to the technical field of disease and pest control, and provides a crop disease and pest sample collector which comprises a floating plate, a support is fixedly connected to one side of the floating plate, a bottom plate is fixedly connected to the upper portion of the support, a transfer cabin is fixedly connected to the upper portion of the bottom plate, and a switching frame is rotatably connected to the middle of the transfer cabin. A storage box is arranged at one end of the switching frame; by arranging the floating plate to be matched with the grading baffle structure of the survival cabin, the device can stably float in the paddy field environment to meet the sample collection requirements of aquatic crops such as rice, grading storage can be achieved according to the aquatic adaptability of different pests, and sample damage caused by unified and centralized storage is avoided; the integrity and survival state of the sample are guaranteed, and reliable materials are provided for subsequent identification and analysis.

The application relates to the technical field of soil sampling, and discloses a soil sample sampler based on geographic information surveying and mapping services, which comprises a footboard, a sampling port arranged on the footboard, a U-shaped frame arranged on the footboard, a sampling tube arranged in the U-shaped frame, a sampling head arranged at the bottom of the sampling tube, two electric push rods symmetrically arranged at the top of the U-shaped frame, and a falling-prevention component arranged on the sampling tube. The soil sample sampler based on geographic information surveying and mapping services is characterized in that the falling-prevention, plugging and blocking components work together to firmly hold the soil sample in the tube, guarantee the sufficient sample retention, avoid repeated sampling, reduce the workload of field operation, ensure the sample integrity, and meet the core requirement of subsequent detection and analysis. The overall structure is reasonable in design, convenient and efficient in operation, the electric push rod replaces the traditional manpower deep sampling, and the labor intensity of the operation personnel is reduced.

This invention relates to the field of test tube sample management technology, specifically to an automated test tube sample storage and retrieval device. Its storage system includes a storage area and a detachable drive device. The storage area has a main frame with storage areas on both sides and a working area in the middle. Each storage area is equipped with drawer-type storage units, connected to the main frame via guide rails and driven to change positions by the detachable drive device. A liftable batch storage system is installed at the bottom of the main frame, and an external test tube rack with information recognition components is located on one side. The robotic arm has a multi-axis linkage drive shaft structure, clamps, and clamp push rods. The drive shaft structure drives the clamps to move in three-dimensional space, and the robotic arm is also equipped with a vision positioning component. This invention automates test tube storage and retrieval, avoiding the risks and errors of human operation and improving storage and retrieval efficiency. The partitioned and drawer-type storage increases storage capacity and space utilization. Storage and retrieval operations are completed inside the device, reducing the frequency of opening the door of the low-temperature equipment and ensuring sample integrity.

The invention belongs to the technical field of blood clinical laboratory equipment, particularly relates to a blood sample subpackaging anti-pollution device suitable for a clinical laboratory, and aims to solve the problems that in the blood collection and detection process, gloves are easily polluted due to frequent opening and closing of a blood sample bottle cap, pollutants are possibly introduced, the sample integrity and detection accuracy are influenced, and the experiment quality and medical safety are threatened. According to the scheme, the device comprises a base, and a collecting frame is fixedly connected to the upper side of one end of the base. The blood sample subpackaging anti-pollution device suitable for the clinical laboratory has the advantages that the anti-pollution collecting assembly is used for collecting, injecting, detecting and sucking out blood samples in the collecting or detecting process, and a bottle cap does not need to be frequently opened and closed; while the risk that the surface of the glove is contaminated by blood and cross contamination is increased is avoided, potential hazards brought to laboratory biological safety protection are reduced, the integrity of a sample and the accuracy of a detection result are improved, and the experiment quality and medical safety are further guaranteed.

The invention discloses an automatic sheep blood sample collecting device, and relates to the technical field of livestock breeding, the automatic sheep blood sample collecting device comprises a blood collecting box and a blood collecting arm, a rotating frame with a mounting groove is arranged in the blood collecting box, and the rotating frame is used for bearing blood collecting tubes; the blood sampling arm comprises a fixing frame and a plurality of hinge frames, the fixing frame is provided with a second circulating belt and a second clamping block, the hinge frames are provided with a first circulating belt and a first clamping block, and the first telescopic rod, the second telescopic rod and the positioning clamp are matched to clamp and move a blood sampling needle; the opening of the top plate corresponds to the blood collection tube and is matched with an infrared positioning sensor and a control system for precise regulation. The device can automatically complete blood taking needle feeding, puncturing, blood taking, sample collecting and continuous operation, manual intervention is not needed, the blood taking efficiency and accuracy are improved, the sample integrity and operation safety are guaranteed, and the device is suitable for large-scale sheep blood collecting scenes.

The invention discloses a geological sampling device for coal geological exploration, and relates to the technical field of coal geological sampling, the geological sampling device comprises a base, the side surface of the base is provided with a notch, the upper surface of the base is fixedly connected with a cross slide rail, the surface of the cross slide rail is slidably connected with a sample storage box, and the geological sampling device also comprises a connecting rod, the side face of the connecting rod is fixedly connected with a supporting plate, and the interior of the supporting plate is fixedly connected with a drilling and backfilling assembly. The device has the advantages that through drilling and backfilling integrated exploration sampling, multi-section drill rod operation is reduced, the convenience of the device is improved, in-situ soil backfilling is achieved through reverse rotation of the backfilling spiral blade and the drill rod, backfilling materials are prevented from being additionally added, uniform backfilling is achieved, the backfilling compactness is remarkably improved, rod moving is not needed after drilling is completed, and the working efficiency is improved. The movable sampling pipe assembly is directly used and matched with the elastic blocking piece to prevent samples from falling off, the sampling resistance is reduced through the air holes, and the integrity and purity of the samples are guaranteed.

The invention relates to the technical field of tumor sampling, and discloses a tumor detection sampling device which comprises a main shell, the main shell is composed of a mounting cover, a front-end sealing plate and a rear-end sealing cover, the front-end sealing plate is fixed to the front end of the mounting cover in a magnetic attraction mode, the rear-end sealing cover is fixed to the rear end of the mounting cover in a magnetic attraction mode, and a needle cannula is arranged in the middle of the front-end sealing plate in a penetrating mode; a sampling needle is movably sleeved with the needle cannula, two sampling grooves are formed in the outer surface, close to the front end, of the sampling needle at intervals in the axial direction, an annular cutting edge is arranged on the inner wall face, close to the front end, of the needle cannula, and a driving rod is arranged in the needle cannula. Synchronous sampling of different depth areas of a tumor through single puncture is achieved, the annular cutting edge on the inner wall of the needle cannula and a small gap between the needle cannula and the sampling needle are matched, tissue in a groove can be accurately cut off, tight wrapping can be formed, and the sample integrity and the detection accuracy are improved.

The invention discloses a sampling device for pesticide pH value detection, and relates to the technical field of pesticide detection sampling, the sampling device comprises a machine body and a pesticide bottle, the machine body comprises a bearing table and a sampling box, the pesticide bottle is horizontally arranged on the upper table top of the bearing table, a mixing assembly and a transmission assembly are arranged in the sampling box, and the mixing assembly comprises a sampling tube and a mixing cylinder; one end of the sampling pipe is connected into the mixing cylinder, a stirrer is installed in a mixing cavity in the mixing cylinder, the other end of the sampling pipe is inserted into the bottom end in the pesticide bottle, the transmission assembly comprises a quantitative ring, one end of the quantitative ring is connected and communicated with the bottom of the mixing cylinder, and a structure combining the spiral tubular quantitative ring and an active temperature control system is designed in the transmission assembly. According to the design, the sample is always kept at the set temperature in the conveying process, the viscosity gradient caused by the pipe wall temperature difference or environmental fluctuation is eliminated, the phenomena of viscosity fingering, sample dispersion or layering and the like are effectively prevented, and the integrity of the sample from the mixing cylinder to the detection cylinder is not damaged.

The invention discloses a traditional Chinese medicinal material adulteration identification method based on feature selection and linear analysis, and relates to the technical field of intelligent identification of traditional Chinese medicinal materials. According to the method, rapid nondestructive detection is realized, the characteristics of high penetrability and low photon energy of terahertz waves are utilized, complex sample pretreatment is not needed, sample integrity is kept, detection efficiency is remarkably improved, accurate quantitative identification is realized, gradient adulterated samples are designed through a system, and high-specificity terahertz fingerprint spectrums are combined, so that the detection accuracy is improved. Accurate identification and distinguishing of adulterant types and adulteration proportions are realized, model robustness and generalization ability are improved, a random forest (RF) feature dimension reduction method is introduced to eliminate spectrum data redundancy, machine learning models of different principles of linear discriminant analysis and neural network classification are fused, a robust classifier is constructed, the problem of small sample overfitting is solved, and the accuracy of the model is improved. And the reliability of the method on samples with different batches and different sources is ensured.

The invention discloses a stratified sampling mineral geological exploration device, and relates to the technical field of geological exploration technologies, the stratified sampling mineral geological exploration device comprises a connecting carriage, and further comprises positioning structures symmetrically arranged on two sides of the connecting carriage and used for preliminary supporting and final anchoring fixation when equipment is in place; the buffering butt joint structure is arranged below the connecting sliding frame and used for buffering axial impact and stably transmitting bit pressure in the drilling process; the tensile sampling structure is arranged on the connecting sliding frame, penetrates through the buffer butt-joint structure and is used for driving the sampling device to perform rotary drilling and axial feeding so as to obtain a layered sample; the stratified sampling mineral geological exploration device is provided with a tensile sampling structure, a transmission rotary disc, a gear ring, a gear and an adjusting screw rod form a transmission chain, rotary drilling and axial multi-stage stretching of a sampling component are synchronous, and the depth is accurately controlled to adapt to stratified sampling; the matched sampling part completes sampling, sealing and pushing, prevents sample mixing and keeps completeness, the parts are in threaded butt joint and are easy to disassemble and assemble, the structure is stable, transmission is reliable, and adaptability is high.

The invention discloses a device and method applied to diffusion visualization and diffusion efficiency evaluation of a regenerant, and the device comprises a transparent visual main body unit, a partition temperature control system, a detachable movable blocking assembly, a double-path independent gravity constant-pressure loading system and a visual observation assembly, a transparent housing base body is provided with a rectangular accommodation cavity with scales, and the rectangular accommodation cavity is divided into a first chamber and a second chamber; the two groups of independent loading assemblies are correspondingly arranged respectively; a transparent medium and a fluorescent direct reading scheme are adopted, the diffusion process of the regenerant is visually observed in real time, traditional slicing and CT scanning are replaced, the steps are simplified, the cost is reduced, and the test efficiency and the data traceability are improved; through gravity loading and piston follow-up compensation, a partition plate dissociation gap is automatically filled, and consistency of test conditions and true data are guaranteed; in combination with medium cooling and curing and the negative pressure coring cutter, in-situ lossless sampling is realized, the sample integrity is ensured, and the stratified analysis positioning precision is improved.

The invention relates to the field of precision optical detection, in particular to an automatic bubble removal and sample introduction device for cavity enhanced Raman spectroscopy, the device comprises an automatic sample introduction unit, a peristaltic pump, an ultrasonic generator and a Raman spectrum detection pool, the automatic sample introduction unit is used for producing a detection sample, the automatic sample introduction unit is connected with the peristaltic pump through a pipeline, and the peristaltic pump is connected with the ultrasonic generator through a pipeline. The peristaltic pump is connected with the Raman spectrum detection pool through a pipeline, the ultrasonic generator is arranged at the bottom of the Raman spectrum detection pool, and the ultrasonic generator is used for removing bubbles of a sample in the Raman spectrum detection pool. An ultrasonic generator is integrated at the bottom of a detection pool of the Raman spectrum detection automatic sampling device, and the ultrasonic generator destroys bubble surface tension by using shock waves generated by a cavitation effect, so that bubbles are gathered and collapsed. The technology realizes non-contact defoaming through physical vibration, does not need chemical additives, effectively maintains the integrity of a sample, can be linked with equipment such as a peristaltic pump and an air pump, meets the automation requirement of a continuous flow system, and finally remarkably improves the detection signal-to-noise ratio, repeatability and data accuracy.

The utility model relates to the technical field of hydrological collection equipment, and discloses a hydrological monitoring collector, which comprises a collection cylinder with an open structure, and a cover plate is arranged at the top opening of the collection cylinder; the drain pipe is fixedly communicated with the lower part of the peripheral surface of the collecting cylinder; a control valve is mounted on the drainage pipe; a plurality of groups of water inlet holes are annularly formed in the top of the peripheral surface of the collecting cylinder at equal intervals, and the water inlet holes are blocked in the sampling, hoisting and transporting processes of the hydrological monitoring collector, so that water sample scattering is effectively reduced, and the water sample collecting efficiency and the sample integrity are guaranteed; besides, the device ensures that the water sample is isolated from the external environment in the sampling process, pollution of suspended particulate matters, microorganisms and the like in the air to the water sample is effectively prevented, the reliability of the sample and the accuracy of a detection result are improved, the use effect of the device is improved due to the characteristics, and the actual use requirement is met.

The utility model provides a kind of roadbed compactness test sample detection drying equipment, including have: pedestal, shell, drying assembly, clamping mechanism, sliding assembly and magnetic attraction limiting component. Sample is clamped by clamping mechanism, sliding assembly drives and reaches the drying assembly directly below by magnetic attraction limiting block limiting, sample is rotated and dried under the driving of motor by drying assembly, water vapor generated by exhaust fan exhaust drying, drying efficiency is fast and sample integrity is high. Operator removes sample, only first sample is removed from shell, then the sample after drying is taken down, far from the drying assembly prone to safety accidents, thereby improving the safety of equipment. Clamping mechanism is detachable design, operator selects different clamping block according to different sample shape, realizes one machine multiuse, saves cost.

In some embodiments, a test consumable for use in a diagnostic sample analyzer includes an inlet configured to receive a sample; a sample storage area coupled to the inlet and configured to receive and store a sample input to the test consumable; a barrier layer positioned over at least a portion of the sample storage area and configured to reduce gas exchange between any sample stored within the sample storage area and the test consumable; a sample passageway extending from the sample storage area; and one or more sensors each configured to contact the sample along the sample passageway and generate a signal representative of a property of the sample. Numerous other aspects are provided.

The invention belongs to the technical field of underground water sampling and monitoring, and particularly relates to an underground water in-situ sampling and monitoring integrated device which comprises a plurality of sampling pipes sequentially arranged in the vertical direction, and the top of the uppermost sampling pipe is connected with a connector; a sensing module is mounted at the inner top of the sampling pipe, and a sealing sleeve is hermetically connected to a probe of the sensing module in a sleeving manner; according to the underground water sampling device, by means of cooperative control of the flexible ruler belt with scale marks and the winch, the lowering depth of the sampling pipe can be visually monitored in real time, accurate sampling of different water layers is ensured, sampling layer position deviation is avoided, the first sealing cover is driven to be opened through negative pressure, and underground water of different water layers enters the corresponding sampling pipe in a split-flow mode; cross contamination of different water layer samples is effectively avoided, sampling representativeness and accuracy are remarkably improved, after sampling is completed, the first sealing cover is automatically closed through reset force of the first spring, internal and external isolation of the sampling pipe is achieved, sample leakage or external impurity interference is prevented, and sample integrity is guaranteed.

The invention relates to the field of petroleum and natural gas exploitation, in particular to a mixed liquid observation sampling pipe and a use method. Comprising a sampling tube; a groove is formed in the handle assembly, and the sampling tube is arranged in the groove; the sealing element is movably connected with the sampling tube; the movable part drives the sealing part to seal or open the sampling tube. The device is simple in structure and convenient to use, liquid samples can be accurately collected from the to-be-detected tank body, and the component proportion of each liquid item can be analyzed subsequently; the sampling pipe can accurately stretch into the tank body, the representativeness of a sampled sample is ensured, the sampling error is reduced, after sampling is completed, the sealing assembly can be accurately driven by the movable part to be tightly attached to the sampling pipe, reliable sealing is formed, the sealing process is rapid and effective, and the sampling efficiency is improved. The sample volatilization is effectively prevented, the integrity and accuracy of the sample are ensured, the whole sampling process is quick and convenient, and the device is suitable for field use.