9 results about "Precision balance" patented technology

The utility model discloses a high-precision balance outer cover for weighing a battery piece, which belongs to the field of detection instruments, and comprises a base and an upper cover which are arranged on the upper side surface of a balance body, a clamping part is arranged on the base, the upper cover is adaptively arranged in the clamping part, and a windproof cover in the prior art is replaced by the base and the upper cover which are folded up and down. When the upper cover is opened, the process of placing the battery piece on the base is not blocked, and the problems that in the prior art, when a high-precision balance weighs the battery piece, due to the existence of a wind shield, the battery piece is inconvenient to take, and the battery piece is likely to collide with the side wall of the wind shield to be damaged are solved.

A precision balance (10) for pipette calibration, having a base (12), a weighing plate (14) and a load-receiving space (16) located thereabove, has a weighing system in the base (12). In the load-receiving space (16), a liquid-tight weighing vessel can be positioned on the weighing plate (14). The precision balance (10) also has a liquid-removal container (20) and a fastening device (18) for reversibly fastening the liquid-removal container (20) to the base (12).

The invention relates to the technical field of laser micro-nano machining, and discloses a femtosecond laser glue-free film high-speed high-precision welding system and method. According to the system and method, through dynamic speed-precision balance regulation and control, multi-layer film interface gradient combination, welding surface quality self-adaptive optimization and multi-target cooperative control, the problems that in existing femtosecond glue-film-free welding, the speed and precision are difficult to consider at the same time, the bonding strength of a multi-layer film interface is low, and the welding surface quality is poor are solved. Through an innovative algorithm and system design, collaborative improvement of high-speed welding and high precision is achieved, the interface bonding strength of multiple layers of thin films is enhanced, the flatness and smoothness of the welding surface are improved, and a new technical scheme is provided for high-speed, high-precision and high-quality glue-free thin film welding.

A method of manufacturing a base body of a weighing sensor of a high-precision balance in which a base body is machined out of a monolithic metal block and has at least one arm which is hinged to the rest of the metal block via integral bending spring joints in the form of thin spots. The base body is then acted upon with a chemical solution at least at the bending spring joints to cause a material removal at these points. Furthermore, a base body manufactured by this method is presented.

This invention relates to the field of rubber production and discloses a batching device for rubber production, including a precision balance and a platform scale. The precision balance has a sliding component inside, and a series of quantitative feeding scoops are placed inside the sliding component. These quantitative feeding scoops are designed for single-use feeding of different small doses of materials, ensuring precise feeding of varying amounts. A limit baffle is bolted to the top of the precision balance to regulate the operator's feeding actions and prevent material spillage due to arm movement. This invention has the following advantages and effects: by optimizing weighing equipment, improving operating methods, and adding auxiliary devices, it solves the problem of uncontrolled batching accuracy caused by manual operation and material characteristics in existing technologies, thereby significantly improving batching accuracy, stabilizing the quality of finished rubber products, increasing product qualification rate, and reducing production costs.

The disclosed precision balance 10 comprises a plate 11 placed on a placement surface, a weight measurement unit 12 provided above the plate 11, a support 17 provided between the plate 11 and the weight measurement unit 12 and supporting the weight measurement unit 12, and a sample stage 22 provided on the weight measurement unit 12 and on which a sample is placed. The support 17 has a conical shape, the apex 18 of the support 17 is brought into contact with the plate 11, and the bottom surface 19 of the support 17 is brought into contact with the weight measurement unit 12.

The present application discloses a method and device for measuring frost heave volume change. The method includes obtaining a first mass of a first measurement system containing a sample to be tested in air through a precision balance; after the sample to be tested, sealed by a seal, is immersed in a cold bath liquid in a container, the temperature of the cold bath liquid is continuously adjusted by a cooling device, and the cooling device circulates the coolant through a circulation pipe in the container; obtaining multiple second masses corresponding to the first measurement system at different temperatures of the cold bath liquid through a precision balance, with the temperature corresponding to the second mass one-to-one; based on Archimedes' buoyancy law, the volume value of the sample to be tested at different temperatures is calculated according to the first mass and the multiple second masses. The present application solves the problems of cumbersome operation and low measurement efficiency in actual applications of the existing method of obtaining the frost heave deformation of the sample by measuring the mass of the outflowing freezing liquid.

The invention discloses a high-precision balance control method for liquid in a mobile environment, which is realized on the basis of liquid self-balancing injection pumps and comprises the following steps: S1, selecting a corresponding number of liquid self-balancing injection pumps according to the type and number of injected liquid, different types of liquid are injected through different liquid self-balancing injection pumps, and the same amount of waste liquid is discharged; s2, after each liquid self-balancing injection pump is installed, each liquid self-balancing injection pump is started; s3, driving pistons in the liquid self-balancing injection pumps to move to realize real-time self-balancing of liquid injection and waste liquid discharge of the liquid self-balancing injection pumps. The liquid balance problem of the continuous blood purification equipment in a vibration impact environment of a moving occasion can be solved, and the control method is simple and high in reliability.