10 results about "Analytical balance" patented technology

The invention relates to a measuring device and a testing method for the hygrothermal expansion coefficient of a composite material, and the measuring device comprises a middle experiment module for arranging a sample to be tested, a heating device arranged in the middle experiment module, and an analytical balance for measuring the mass of the sample to be tested, a displacement measurement sensor for measuring the vertical displacement of a sample to be measured is arranged below the middle experiment module, the humidity generator is communicated with an inner cavity of the middle experiment module, the humidity sensor is mounted on the middle experiment module, and the detection end of the humidity sensor is positioned in the inner cavity of the middle experiment module. Environmental interference is blocked through physical separation, synchronous and accurate measurement of the swelling amount and mass of the composite material in the target temperature and humidity environment is achieved, the accuracy and reliability of calculation of the hygrothermal expansion coefficient are improved, and the device is convenient to maintain and long in service life.

The utility model discloses a totally-enclosed anti-external interference analytical balance comprising an electronic balance body, two sides of the front end of the front surface of the electronic balance body are respectively provided with a display screen and an operation button, and the middle of the upper end of the electronic balance body is provided with a weighing disc. The electronic balance body is installed in a placing groove formed in the middle of the upper end of the fixed base, a limiting rubber pad is arranged between the interior of the placing groove and the electronic balance body, the upper end of the fixed base is covered with a protective outer cover on the outer side of the electronic balance body, and the two sides of the protective outer cover and the fixed base form a lifting structure through an adjusting assembly. And the two sides of the protective outer cover are detachably connected with the outside of the adjusting assembly. According to the totally-closed external-interference-resistant analytical balance, the adjusting assembly is arranged to be connected with the protective outer cover, the protective outer cover can be moved and lifted conveniently, meanwhile, the protective outer cover is detachably connected with the adjusting assembly, the protective outer cover can be detached conveniently, the interior of the protective outer cover can be cleaned conveniently, and the use practicability is improved.

The invention relates to the technical field of oil pipe abrasion tests, in particular to an ultra-high molecular weight material mortar abrasion testing machine and a control method. According to the technical scheme, a module slewing mechanism is mounted in the middle of the bottom of an aluminum profile frame, an analytical balance is mounted on a frame mounting plate, a heat conduction oil tank is mounted in the front of the middle, a linear module and a rotating module are mounted in the rear of the middle, an integrated air cooler is mounted in the front, and an ultrasonic cleaning tank is mounted in the rear; the top of the aluminum profile frame is provided with top cover organic glass, one side is provided with a sound-light alarm lamp, the other side is provided with a cantilever, and a touch screen is arranged below the cantilever through a control box. The device has the beneficial effects that the functions of weighing, cleaning, air drying and station switching are integrated, three groups of test samples can be tested at one time, automatic control is realized, the test temperature can be accurately controlled, unattended operation can be realized in a long-time abrasion test, the efficiency, accuracy and safety of the whole test process are improved, and the working intensity of operators is reduced.

The utility model relates to the technical field of glue -dispensing machine, disclose a glue -dispensing machine performance test device, including the device main part, the top fixed connection of device main part has the glue -dispensing mechanism of adjusting, the top of device main part is provided with the inspection positioning assembly, inspection assembly, the inspection assembly includes the inspection box, the bottom fixed connection of inspection box is on the right side of device main part upper surface. In the utility model, through the inspection assembly, utilize the constant temperature and humidity environment of inspection box, the glue injection amount of weighing analytical balance accurate measurement, electric screw rod, screw slide platform drive CCD vision detection scanner horizontal movement, electric lifting stand adjusts its height, cooperates the light supplementing lamp illumination, realizes the glue point form and track detection, integrates many detection functions, and the environment is stable, and the detection is accurate and comprehensive, and each component cooperates high efficiency, and the operation is convenient, reduces the interference, provides reliable data for the glue -dispensing machine performance evaluation, improves the detection efficiency and quality.

The application discloses a kind of special atmosphere under DSC high-pressure crucible sample preparation device and its sample preparation method, sample preparation device includes the external operation box that can provide multi-component gas sample preparation environment, sample preparation platform, sampling tool box, analytical balance, shock pad, modular high-pressure crucible pressure sample device and the like.The external operation box includes transparent airtight box, sample temporary storage warehouse, multiple adjustable gas paths and pipe valves, external lead wire grounding;Sample preparation platform is the smooth table top of corrosion-resistant coating;Sampling tool box includes solid sample feeder and other commonly used tools.The sample preparation device structure is light and compact, which overcomes the shortcomings of large size and heavy weight of existing pressure sample device, can simulate the operating atmosphere in the laboratory conditions to characterize the potential thermal risk of the sample under actual working conditions, and has the characteristics of easy quantization of operation process control parameters, strong crucible specification adaptability and the like.

This invention discloses a method for testing the moisture content of continuous casting protective slag, comprising: first, drying a stainless steel pan in a drying oven, removing it after a certain period of time, and cooling it to room temperature in a desiccator; then, placing the protective slag to be tested into the stainless steel pan, accurately weighing it using an analytical balance and recording it as m1, and spreading it as evenly as possible; then placing it in the drying oven to dry, removing it, cooling it to room temperature in a desiccator, accurately weighing it using an analytical balance and recording it as m2; and calculating the moisture content. The purpose of this invention is to provide a method for testing the moisture content of continuous casting protective slag, using a comparison of the mass before and after heating to determine the moisture content of the continuous casting protective slag, and is simple to operate, highly accurate, and low in cost.

The invention provides a device for recovering carrier salt in spent fuel waste molten salt through reduced pressure distillation. The device comprises a metal cylinder, an evaporation crucible, a collection crucible, an upper analytical balance, a lower analytical balance and a tubular heating device, a rack is arranged in the metal cylinder, and the evaporation crucible is located on the rack; a cylinder cover is arranged at the top of the metal cylinder, and the metal cylinder is hung below the upper analytical balance by a high-temperature hanging spring connected with the cylinder cover; the bottom of the metal cylinder is embedded in the collecting crucible in a non-contact manner; the bottom of the collecting crucible stands on the surface of the lower analytical balance through a bracket; the evaporating crucible is positioned in a high-temperature area of the tubular heating device and is used for evaporating spent fuel waste fused salt; the collecting crucible is located in the low-temperature area and used for condensing and collecting carrier salt. The device is simple in structure and easy and convenient to operate, the maximum recovery rate of the carrier salt can reach 99%, the decontamination coefficients of the carrier salt and the impurity nuclide both exceed 103, and the recovered carrier salt can be directly reused without secondary purification.

The present invention relates to the technical field of magnetic suspension measurement, and specifically provides a magnetic suspension balance and a control method thereof, aimed at solving the problems of existing magnetic suspension balances in which the assembly structure of the coil and the stator permanent magnet is complex, disassembly and assembly are difficult, and due to the large space occupied, the diameter of the reaction chamber of the magnetic suspension balance is large, resulting in a decrease in the high-pressure resistance rating. The magnetic suspension balance of the present invention comprises a sample chamber and a magnetic suspension weighing module, wherein the magnetic suspension weighing module comprises an analytical balance, a first magnetic force device, a second magnetic force device, and a weighing component, the first magnetic force device is connected to the analytical balance, the second magnetic force device is connected to the weighing component, and the weighing component is connected to a sample; and a stabilization module, wherein the stabilization module comprises a third magnetic force device disposed outside the sample chamber and a fourth magnetic force device disposed inside the sample chamber, and the fourth magnetic force device is connected to the second magnetic force device and is capable of, under the magnetic force of the third magnetic force device, driving the second magnetic force device to eliminate displacement, cease rotation, and maintain stability.

The invention relates to the technical field of electronic analytical balances, and particularly discloses an electronic analytical balance for mass determination, which comprises a balance main body, a weighing sensor is arranged in the balance main body, a weighing cup is placed in the balance main body, and the weighing cup is positioned on one side of the weighing sensor; the gooseneck flask is internally used for bearing a detected medicine; the clamping mechanism is positioned above the weighing sensor; when the device is used, a gooseneck flask and a curved neck pipe are fixed and then placed in the center of a weight sensor, the gooseneck flask is clamped through the clamping mechanism, the gooseneck flask is turned over, a push rod is adjusted to the position above the gooseneck flask through a limiting piece, and after weighing is completed, the gooseneck flask is placed in the center of the weight sensor. According to the electronic analytical balance, part of medicine in the gooseneck flask can be discharged into the weighing cup in the electronic analytical balance body through the liquid discharging mechanism, the mass of the medicine in the weighing cup can be obtained after the medicine is weighed again, the gooseneck flask does not need to be taken out when the electronic analytical balance is used, and weighing is very convenient.

This invention proposes a high-precision optical analytical balance, relating to the field of precision measuring instruments. It includes a base upon which interconnected optical, weighing, and display units are sequentially mounted. This invention achieves measurement through pure optical detection of the mass-to-displacement conversion process, eliminating any additional electromagnetic contact and thus completely eradicating measurement errors introduced by feedback forces and electrostatic adsorption in traditional balances. Furthermore, by using the fundamental physical constants of laser wavelength and gravitational acceleration as references, the measurement chain is short, fundamentally eliminating the long-term drift problem caused by component aging and magnetic flux changes in electromagnetic balances, achieving absolute measurement with "wear-free scale." In addition, the measurement results can be directly traced back to the basic units of length (speed of light / wavelength) and acceleration, conforming to the trend of quantization and constantization in the International System of Units (SI), which has significant metrological implications.