A device for removing air bubbles when measuring weight volume

Abstract

The invention discloses a device for removing air bubbles when measuring the volume of weights. The device comprises a power controller, a fixed bottom plate, a motor, an impeller cavity, a water outlet, a water inlet and a water outlet. The fixed bottom plate is fixed on the inner side of the tank wall of the liquid tank, the power controller is fixed on the outside of the position of the box wall of the fixed bottom plate, the fixed bottom plate is fixedly connected to the motor, the motor is fixedly connected with one end of the impeller cavity, and the other end of the impeller cavity is connected with a The water inlet is opened on the side wall of the impeller cavity and connected to one end of the water outlet pipe, and the other end of the water outlet pipe is set as the water outlet. The device uses water flow to remove air bubbles, and the removal effect is good, and it is electrically controlled, and the water outlet pressure is constant. At the same time, the device uses the liquid in the water container to keep the water temperature consistent and reduce the measurement error caused by the water temperature change.

Description

technical field [0001] The invention relates to the field of measurement, in particular to a device for removing air bubbles when measuring the volume of weights. Background technique [0002] At present, the measurement of weights mostly adopts the hydrostatic pressure method, that is, the measurement method based on the density of the liquid, and the volume of the weight is calculated by the buoyancy of the measured weight in the liquid. In hydrostatic weighing, the weight must be immersed in a liquid, however, when the weight is immersed in the liquid, air bubbles will attach to the weight and the weight holder, which will increase the weight in the liquid during the measurement. The buoyancy in the weights makes the measured volume value of the weight too large, resulting in an uncorrectable systematic error. In order to solve the above problems, it is commonly used to wipe by hand or remove air bubbles with the help of a brush, but manual operation will bring a large w...

AI Technical Summary

Problems solved by technology

Under the hydrostatic weighing method, the weight must be immersed in a liquid, but when the weight is immersed in the liquid, the air bubbles attached to the weight and the weight support will increase the weight in the liquid during the measurement process. The buoyancy in the medium makes the measured weight volume value too large, forming an uncorrectable systematic error

In order to solve the above problems, the air bubbles are often wiped manually or with the help of a brush, but the manual operation will bring a large workload to the measurement work, and the manual operation will easily cause changes in the water temperature. Therefore, the present invention provides an electric weight air removal device. , to solve the deficiencies of the existing technology

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