Built-in drying system for electronic analysis balance

Abstract

The invention relates to a built-in drying system for an electronic analysis balance, which belongs to the technical field of an electronic analysis balance and comprises a top cover, a cabin body, a drying agent storage box and a locking switch, wherein the top cover is in a square shape and is positioned at the back part of a weighing part, one side of the top cover near the front side forms a hinge rotating shaft device with a balance casing, the locking switch is arranged at one side of the top cover near the back side, the cabin body is in a rectangular structure, the upper opening is open, a plurality of air holes are arranged on the surface between the cabin body and the weighing part of the electronic balance, the rest three sides and the bottom side are in a sealed structure, a square sealing ring is arranged on the upper end of the top end of the cabin body, two springs are arranged above the back side of the outer part of the cabin body, the drying agent storage box is positioned in the cabin body and is in a cuboid structure, the upper opening of the drying agent storage box is open, a lifting handle is arranged on the upper opening, one forward side of the drying agent storage box is a tight metal screen, the rest three sides and the bottom side are in a sealed structure, solid drying agents are placed in the drying agent storage box and used for absorbing moisture in the balance, so that the weighing and analysis accuracy of the balance is ensured.

Description

technical field [0001] The invention relates to a built-in drying system of an electronic analytical balance, belonging to the technical field of electronic analytical balances. Background technique [0002] Electronic analytical balance is a widely used precision weighing instrument, the accuracy is generally in the range of 0.001 gram to 0.0001 gram or even higher. Many objects to be weighed are dried, dehydrated, cooled, and then weighed on a tray in the balance; since the air humidity in the closed space where the tray in the balance is located is basically the same as the atmospheric humidity around the balance, it is often dry when weighing. The passed object continuously absorbs water, and the displayed mass value continues to increase, and the resulting error directly affects the accuracy of the experimental results. Contents of the invention [0003] Aiming at the gap in the prior art, the invention provides a built-in drying system for an electronic analytical b...

AI Technical Summary

Problems solved by technology

Many objects to be weighed are dried, dehydrated, cooled, and then weighed on a tray in the balance; since the air humidity in the closed space where the tray in the balance is located is basically the same as the atmospheric humidity around the balance, it is often dry when weighing. The object that has been passed absorbs water continuously, and the displayed mass value continues to increase, and the resulting error directly affects the accuracy of the experimental results.

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